Organisationsahrefsocannlccaf45 ()opensuse-15.6-5.3_opam-2.3

opensuse-15.6-5.3_opam-2.3

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Code Copied

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2025-03-20 21:04.47: New job: test ahrefs/ocannl https://github.com/ahrefs/ocannl.git#refs/heads/master (ccaf459c55f1e1dab014a65af54e1ba2ec3b9ad0) (linux-x86_64:opensuse-15.6-5.3_opam-2.3)
Base: ocaml/opam:opensuse-15.6-ocaml-5.3@sha256:03eed3183ced16e3bbc578545f87a5fc999109bedc4743538b9ff9563af70907
Opam project build


To reproduce locally:


git clone --recursive "https://github.com/ahrefs/ocannl.git" -b "master" && cd "ocannl" && git reset --hard ccaf459c
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:opensuse-15.6-ocaml-5.3@sha256:03eed3183ced16e3bbc578545f87a5fc999109bedc4743538b9ff9563af70907
# opensuse-15.6-5.3_opam-2.3
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
WORKDIR /src
RUN sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam
RUN opam init --reinit -ni
RUN uname -rs && opam exec -- ocaml -version && opam --version
WORKDIR /src
RUN sudo chown opam /src
RUN cd ~/opam-repository && (git cat-file -e 4e25d0cf5f38cf58d1904bbb48f62ccd9c48f785 || git fetch origin master) && git reset -q --hard 4e25d0cf5f38cf58d1904bbb48f62ccd9c48f785 && git log --no-decorate -n1 --oneline && opam update -u
COPY --chown=1000:1000 neural_nets_lib.opam arrayjit.opam ./
RUN opam pin add -yn neural_nets_lib.dev './' && \
opam pin add -yn arrayjit.dev './'
RUN echo '(lang dune 3.0)' > './dune-project'
ENV DEPS="angstrom.0.16.1 backoff.0.1.1 base.v0.17.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigarray-compat.1.1.0 bigstringaf.0.10.0 conf-libffi.2.0.0 conf-pkg-config.4 cppo.1.8.0 csexp.1.5.2 ctypes.0.23.0 ctypes-foreign.0.23.0 dune.3.17.2 dune-configurator.3.17.2 fieldslib.v0.17.0 integers.0.7.0 jane-street-headers.v0.17.0 jst-config.v0.17.0 mtime.2.1.0 multicore-magic.2.3.1 num.1.5-1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 parsexp.v0.17.0 ppx_assert.v0.17.0 ppx_base.v0.17.0 ppx_cold.v0.17.0 ppx_compare.v0.17.0 ppx_derivers.1.2.1 ppx_deriving.6.0.3 ppx_enumerate.v0.17.0 ppx_expect.v0.17.2 ppx_fields_conv.v0.17.0 ppx_globalize.v0.17.0 ppx_hash.v0.17.0 ppx_here.v0.17.0 ppx_inline_test.v0.17.0 ppx_minidebug.2.1.0 ppx_optcomp.v0.17.0 ppx_sexp_conv.v0.17.0 ppx_string.v0.17.0 ppx_variants_conv.v0.17.0 ppxlib.0.35.0 ppxlib_jane.v0.17.2 printbox.0.12 printbox-ext-plot.0.12 printbox-html.0.12 printbox-md.0.12 printbox-text.0.12 ptime.1.2.0 re.1.12.0 saturn_lockfree.0.5.0 seq.base sexplib.v0.17.0 sexplib0.v0.17.0 stdio.v0.17.0 stdlib-shims.0.3.0 time_now.v0.17.0 topkg.1.0.8 tyxml.4.6.0 uucp.16.0.0 uutf.1.0.4 variantslib.v0.17.0"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.3 --depext-only -y neural_nets_lib.dev arrayjit.dev $DEPS
RUN opam install $DEPS
COPY --chown=1000:1000 . /src
RUN opam exec -- dune build @install @check @runtest && rm -rf _build


END-OF-DOCKERFILE
docker build .
END-REPRO-BLOCK


2025-03-20 21:04.47: Using cache hint "ahrefs/ocannl-ocaml/opam:opensuse-15.6-ocaml-5.3@sha256:03eed3183ced16e3bbc578545f87a5fc999109bedc4743538b9ff9563af70907-opensuse-15.6-5.3_opam-2.3-3fcdf15be1e8f7dcae915b4cdb940fd5"
2025-03-20 21:04.47: Using OBuilder spec:
((from ocaml/opam:opensuse-15.6-ocaml-5.3@sha256:03eed3183ced16e3bbc578545f87a5fc999109bedc4743538b9ff9563af70907)
(comment opensuse-15.6-5.3_opam-2.3)
(user (uid 1000) (gid 1000))
(env CLICOLOR_FORCE 1)
(env OPAMCOLOR always)
(workdir /src)
(run (shell "sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam"))
(run (shell "opam init --reinit -ni"))
(run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
(workdir /src)
(run (shell "sudo chown opam /src"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 4e25d0cf5f38cf58d1904bbb48f62ccd9c48f785 || git fetch origin master) && git reset -q --hard 4e25d0cf5f38cf58d1904bbb48f62ccd9c48f785 && git log --no-decorate -n1 --oneline && opam update -u"))
(copy (src neural_nets_lib.opam arrayjit.opam) (dst ./))
(run (network host)
(shell  "opam pin add -yn neural_nets_lib.dev './' && \
\nopam pin add -yn arrayjit.dev './'"))
(run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
(env DEPS "angstrom.0.16.1 backoff.0.1.1 base.v0.17.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigarray-compat.1.1.0 bigstringaf.0.10.0 conf-libffi.2.0.0 conf-pkg-config.4 cppo.1.8.0 csexp.1.5.2 ctypes.0.23.0 ctypes-foreign.0.23.0 dune.3.17.2 dune-configurator.3.17.2 fieldslib.v0.17.0 integers.0.7.0 jane-street-headers.v0.17.0 jst-config.v0.17.0 mtime.2.1.0 multicore-magic.2.3.1 num.1.5-1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 parsexp.v0.17.0 ppx_assert.v0.17.0 ppx_base.v0.17.0 ppx_cold.v0.17.0 ppx_compare.v0.17.0 ppx_derivers.1.2.1 ppx_deriving.6.0.3 ppx_enumerate.v0.17.0 ppx_expect.v0.17.2 ppx_fields_conv.v0.17.0 ppx_globalize.v0.17.0 ppx_hash.v0.17.0 ppx_here.v0.17.0 ppx_inline_test.v0.17.0 ppx_minidebug.2.1.0 ppx_optcomp.v0.17.0 ppx_sexp_conv.v0.17.0 ppx_string.v0.17.0 ppx_variants_conv.v0.17.0 ppxlib.0.35.0 ppxlib_jane.v0.17.2 printbox.0.12 printbox-ext-plot.0.12 printbox-html.0.12 printbox-md.0.12 printbox-text.0.12 ptime.1.2.0 re.1.12.0 saturn_lockfree.0.5.0 seq.base sexplib.v0.17.0 sexplib0.v0.17.0 stdio.v0.17.0 stdlib-shims.0.3.0 time_now.v0.17.0 topkg.1.0.8 tyxml.4.6.0 uucp.16.0.0 uutf.1.0.4 variantslib.v0.17.0")
(env CI true)
(env OCAMLCI true)
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam update --depexts && opam install --cli=2.3 --depext-only -y neural_nets_lib.dev arrayjit.dev $DEPS"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install $DEPS"))
(copy (src .) (dst /src))
(run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
)


2025-03-20 21:04.47: Waiting for resource in pool OCluster
2025-03-20 21:04.47: Waiting for worker…
2025-03-20 21:15.21: Got resource from pool OCluster
Building on clete.caelum.ci.dev
All commits already cached
HEAD is now at ccaf459c Missing from previous commit: test update


(from ocaml/opam:opensuse-15.6-ocaml-5.3@sha256:03eed3183ced16e3bbc578545f87a5fc999109bedc4743538b9ff9563af70907)
2025-03-20 21:15.42 ---> saved as "97c0fadd2a2f6fc0d6f7c024b06fdc5e37314bdc6a75a12d7cd819ed6ccf2aa0"


/: (comment opensuse-15.6-5.3_opam-2.3)


/: (user (uid 1000) (gid 1000))


/: (env CLICOLOR_FORCE 1)


/: (env OPAMCOLOR always)


/: (workdir /src)


/src: (run (shell "sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam"))
2025-03-20 21:15.42 ---> saved as "ae8deb97ac3f0d225fc1c09301f1ecf73216745312621d386a5a7c1d83af4ac0"


/src: (run (shell "opam init --reinit -ni"))
Configuring from /home/opam/.opamrc and then from built-in defaults.
Checking for available remotes: rsync and local, git.
- you won't be able to use mercurial repositories unless you install the hg command on your system.
- you won't be able to use darcs repositories unless you install the darcs command on your system.


Continue? [y/n] y
This development version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.2, which can't be reverted.
You may want to back it up before going further.


Format upgrade done.


<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[ERROR] Could not update repository "opam-repository-archive": "/usr/bin/git fetch -q" exited with code 128 "fatal: unable to access 'https://github.com/ocaml/opam-repository-archive/': Could not resolve host: github.com"
[default] synchronised from file:///home/opam/opam-repository
2025-03-20 21:17.03 ---> saved as "b9e7493c2d0282d19720dc154beb4021e405218902724c60e81ee6d906a24ad1"


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 5.15.0-134-generic
The OCaml toplevel, version 5.3.0
2.3.0
2025-03-20 21:17.03 ---> saved as "59503f8b04c6e35ab7b00f105a136ae0ce66053ec9281c32268254d16b5cb3d4"


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2025-03-20 21:17.04 ---> saved as "3336fd0a8b7aa274901f66563ebf4bbae201df957a49f9776cc6d20c7be356cc"


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 4e25d0cf5f38cf58d1904bbb48f62ccd9c48f785 || git fetch origin master) && git reset -q --hard 4e25d0cf5f38cf58d1904bbb48f62ccd9c48f785 && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
862a7640b1..6cf83229dd  master     -> origin/master
4e25d0cf5f Merge pull request #27651 from lukstafi/opam-publish-ppx_minidebug.2.1.0


<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[opam-repository-archive] synchronised from git+https://github.com/ocaml/opam-repository-archive
[default] synchronised from file:///home/opam/opam-repository


Everything as up-to-date as possible (run with --verbose to show unavailable upgrades).
However, you may "opam upgrade" these packages explicitly, which will ask permission to downgrade or uninstall the conflicting packages.
Nothing to do.
# To update the current shell environment, run: eval $(opam env)
2025-03-20 21:18.16 ---> saved as "6c01ad4ba882899c394b1e823611bfadb3a659182c71b239fa45a13cb8940235"


/src: (copy (src neural_nets_lib.opam arrayjit.opam) (dst ./))
2025-03-20 21:18.16 ---> saved as "3195a708e8a189edef22e52b671f17bf0bf4a0c449a4cf1e155698bf2de90c85"


/src: (run (network host)
(shell  "opam pin add -yn neural_nets_lib.dev './' && \
\nopam pin add -yn arrayjit.dev './'"))
[neural_nets_lib.dev] synchronised (file:///src)
neural_nets_lib is now pinned to file:///src (version dev)
[arrayjit.dev] synchronised (file:///src)
arrayjit is now pinned to file:///src (version dev)
2025-03-20 21:18.30 ---> saved as "c834d286ecab4610cdbca01e5ec9de8c401caf2e94f2f7ca93dde793a42fa63e"


/src: (run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
2025-03-20 21:18.30 ---> saved as "d21e1dbea050f293c0bda6a75159da85df3483a11ab857f1b9a8dfc0fdde4f42"


/src: (env DEPS "angstrom.0.16.1 backoff.0.1.1 base.v0.17.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base bigarray-compat.1.1.0 bigstringaf.0.10.0 conf-libffi.2.0.0 conf-pkg-config.4 cppo.1.8.0 csexp.1.5.2 ctypes.0.23.0 ctypes-foreign.0.23.0 dune.3.17.2 dune-configurator.3.17.2 fieldslib.v0.17.0 integers.0.7.0 jane-street-headers.v0.17.0 jst-config.v0.17.0 mtime.2.1.0 multicore-magic.2.3.1 num.1.5-1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0 ocaml_intrinsics_kernel.v0.17.1 ocamlbuild.0.16.1 ocamlfind.1.9.8 parsexp.v0.17.0 ppx_assert.v0.17.0 ppx_base.v0.17.0 ppx_cold.v0.17.0 ppx_compare.v0.17.0 ppx_derivers.1.2.1 ppx_deriving.6.0.3 ppx_enumerate.v0.17.0 ppx_expect.v0.17.2 ppx_fields_conv.v0.17.0 ppx_globalize.v0.17.0 ppx_hash.v0.17.0 ppx_here.v0.17.0 ppx_inline_test.v0.17.0 ppx_minidebug.2.1.0 ppx_optcomp.v0.17.0 ppx_sexp_conv.v0.17.0 ppx_string.v0.17.0 ppx_variants_conv.v0.17.0 ppxlib.0.35.0 ppxlib_jane.v0.17.2 printbox.0.12 printbox-ext-plot.0.12 printbox-html.0.12 printbox-md.0.12 printbox-text.0.12 ptime.1.2.0 re.1.12.0 saturn_lockfree.0.5.0 seq.base sexplib.v0.17.0 sexplib0.v0.17.0 stdio.v0.17.0 stdlib-shims.0.3.0 time_now.v0.17.0 topkg.1.0.8 tyxml.4.6.0 uucp.16.0.0 uutf.1.0.4 variantslib.v0.17.0")


/src: (env CI true)


/src: (env OCAMLCI true)


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam update --depexts && opam install --cli=2.3 --depext-only -y neural_nets_lib.dev arrayjit.dev $DEPS"))
+ /usr/bin/sudo "zypper" "--non-interactive" "refresh"
- Retrieving repository 'Update repository of openSUSE Backports' metadata [......
- .......done]
- Building repository 'Update repository of openSUSE Backports' cache [..
- ..done]
- Retrieving repository 'Update repository with updates from SUSE Linux Enterprise 15' metadata [.....
- .........
- .........
- ..........
- ..........
- .........
- .......
- .........
- .....done]
- Building repository 'Update repository with updates from SUSE Linux Enterprise 15' cache [..
- ..done]
- Repository 'Main Update Repository' is up to date.
- Repository 'Update Repository (Non-Oss)' is up to date.
- Repository 'Non-OSS Repository' is up to date.
- Repository 'Main Repository' is up to date.
- All repositories have been refreshed.


<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>
[arrayjit.dev] synchronised (file:///src)
[neural_nets_lib.dev] synchronised (file:///src)


[NOTE] Package ocaml-options-vanilla is already installed (current version is 1).
[NOTE] Package ocaml-config is already installed (current version is 3).
[NOTE] Package ocaml-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml is already installed (current version is 5.3.0).
[NOTE] Package base-unix is already installed (current version is base).
[NOTE] Package base-threads is already installed (current version is base).
[NOTE] Package base-nnp is already installed (current version is base).
[NOTE] Package base-effects is already installed (current version is base).
[NOTE] Package base-domains is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).


The following system packages will first need to be installed:
libffi-devel


<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>


+ /usr/bin/sudo "zypper" "--non-interactive" "install" "libffi-devel"
- Loading repository data...
- Reading installed packages...
- Resolving package dependencies...
- 
- The following NEW package is going to be installed:
-   libffi-devel
- 
- 1 new package to install.
- 
- Package download size:    26.7 KiB
- 
- Package install size change:
-               |      29.1 KiB  required by packages that will be installed
-     29.1 KiB  |  -      0 B    released by packages that will be removed
- 
- Backend:  classic_rpmtrans
- Continue? [y/n/v/...? shows all options] (y): y
- Retrieving: libffi-devel-3.2.1.git259-10.8.x86_64 (Main Repository) (1/1),  26.7 KiB
- Retrieving: libffi-devel-3.2.1.git259-10.8.x86_64.rpm [..
- .done (8.0 KiB/s)]
- 
- Checking for file conflicts: [..done]
- (1/1) Installing: libffi-devel-3.2.1.git259-10.8.x86_64 [..done]
2025-03-20 21:19.34 ---> saved as "9b554398ff4ef6cf7f774beb4858a6e3bd61c821742430e0ee5570f502dbaa3e"


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install $DEPS"))
[NOTE] Package ocaml-options-vanilla is already installed (current version is 1).
[NOTE] Package ocaml-config is already installed (current version is 3).
[NOTE] Package ocaml-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml is already installed (current version is 5.3.0).
[NOTE] Package base-unix is already installed (current version is base).
[NOTE] Package base-threads is already installed (current version is base).
[NOTE] Package base-nnp is already installed (current version is base).
[NOTE] Package base-effects is already installed (current version is base).
[NOTE] Package base-domains is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).
The following actions will be performed:
=== install 65 packages
- install angstrom                0.16.1
- install backoff                 0.1.1
- install base                    v0.17.1
- install bigarray-compat         1.1.0
- install bigstringaf             0.10.0
- install conf-libffi             2.0.0
- install conf-pkg-config         4
- install cppo                    1.8.0
- install csexp                   1.5.2
- install ctypes                  0.23.0
- install ctypes-foreign          0.23.0
- install dune                    3.17.2
- install dune-configurator       3.17.2
- install fieldslib               v0.17.0
- install integers                0.7.0
- install jane-street-headers     v0.17.0
- install jst-config              v0.17.0
- install mtime                   2.1.0
- install multicore-magic         2.3.1
- install num                     1.5-1
- install ocaml-compiler-libs     v0.17.0
- install ocaml-syntax-shims      1.0.0
- install ocaml_intrinsics_kernel v0.17.1
- install ocamlbuild              0.16.1
- install ocamlfind               1.9.8
- install parsexp                 v0.17.0
- install ppx_assert              v0.17.0
- install ppx_base                v0.17.0
- install ppx_cold                v0.17.0
- install ppx_compare             v0.17.0
- install ppx_derivers            1.2.1
- install ppx_deriving            6.0.3
- install ppx_enumerate           v0.17.0
- install ppx_expect              v0.17.2
- install ppx_fields_conv         v0.17.0
- install ppx_globalize           v0.17.0
- install ppx_hash                v0.17.0
- install ppx_here                v0.17.0
- install ppx_inline_test         v0.17.0
- install ppx_minidebug           2.1.0
- install ppx_optcomp             v0.17.0
- install ppx_sexp_conv           v0.17.0
- install ppx_string              v0.17.0
- install ppx_variants_conv       v0.17.0
- install ppxlib                  0.35.0
- install ppxlib_jane             v0.17.2
- install printbox                0.12
- install printbox-ext-plot       0.12
- install printbox-html           0.12
- install printbox-md             0.12
- install printbox-text           0.12
- install ptime                   1.2.0
- install re                      1.12.0
- install saturn_lockfree         0.5.0
- install seq                     base
- install sexplib                 v0.17.0
- install sexplib0                v0.17.0
- install stdio                   v0.17.0
- install stdlib-shims            0.3.0
- install time_now                v0.17.0
- install topkg                   1.0.8
- install tyxml                   4.6.0
- install uucp                    16.0.0
- install uutf                    1.0.4
- install variantslib             v0.17.0


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved backoff.0.1.1  (cached)
-> retrieved bigarray-compat.1.1.0  (cached)
-> retrieved angstrom.0.16.1  (cached)
-> retrieved base.v0.17.1  (cached)
-> retrieved bigstringaf.0.10.0  (cached)
-> retrieved cppo.1.8.0  (cached)
-> installed conf-pkg-config.4
-> retrieved csexp.1.5.2  (cached)
-> retrieved ctypes.0.23.0, ctypes-foreign.0.23.0  (cached)
-> installed conf-libffi.2.0.0
-> retrieved fieldslib.v0.17.0  (cached)
-> retrieved integers.0.7.0  (cached)
-> retrieved jane-street-headers.v0.17.0  (cached)
-> retrieved jst-config.v0.17.0  (cached)
-> retrieved multicore-magic.2.3.1  (cached)
-> retrieved mtime.2.1.0  (cached)
-> retrieved num.1.5-1  (cached)
-> retrieved ocaml-compiler-libs.v0.17.0  (cached)
-> retrieved ocaml-syntax-shims.1.0.0  (cached)
-> retrieved ocaml_intrinsics_kernel.v0.17.1  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved parsexp.v0.17.0  (cached)
-> retrieved ppx_assert.v0.17.0  (cached)
-> retrieved ppx_base.v0.17.0  (cached)
-> retrieved ppx_cold.v0.17.0  (cached)
-> retrieved ppx_compare.v0.17.0  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppx_enumerate.v0.17.0  (cached)
-> retrieved ppx_deriving.6.0.3  (cached)
-> retrieved ppx_expect.v0.17.2  (cached)
-> retrieved ppx_fields_conv.v0.17.0  (cached)
-> retrieved ppx_globalize.v0.17.0  (cached)
-> retrieved ppx_hash.v0.17.0  (cached)
-> retrieved ppx_here.v0.17.0  (cached)
-> retrieved ppx_inline_test.v0.17.0  (cached)
-> retrieved ppx_optcomp.v0.17.0  (cached)
-> retrieved ppx_sexp_conv.v0.17.0  (cached)
-> retrieved ppx_string.v0.17.0  (cached)
-> retrieved ppx_minidebug.2.1.0  (cached)
-> retrieved ppx_variants_conv.v0.17.0  (cached)
-> retrieved ppxlib_jane.v0.17.2  (cached)
-> retrieved dune.3.17.2, dune-configurator.3.17.2  (cached)
-> installed num.1.5-1
-> retrieved ppxlib.0.35.0  (cached)
-> retrieved printbox.0.12, printbox-ext-plot.0.12, printbox-html.0.12, printbox-md.0.12, printbox-text.0.12  (cached)
-> retrieved ptime.1.2.0  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved re.1.12.0  (cached)
-> retrieved sexplib.v0.17.0  (cached)
-> retrieved saturn_lockfree.0.5.0  (cached)
-> retrieved sexplib0.v0.17.0  (cached)
-> retrieved stdio.v0.17.0  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> retrieved time_now.v0.17.0  (cached)
-> retrieved topkg.1.0.8  (cached)
-> retrieved uutf.1.0.4  (cached)
-> retrieved tyxml.4.6.0  (cached)
-> retrieved variantslib.v0.17.0  (cached)
-> retrieved uucp.16.0.0  (cached)
-> installed ocamlbuild.0.16.1
-> installed ocamlfind.1.9.8
-> installed topkg.1.0.8
-> installed uutf.1.0.4
-> installed mtime.2.1.0
-> installed ptime.1.2.0
-> installed dune.3.17.2
-> installed ppx_derivers.1.2.1
-> installed jane-street-headers.v0.17.0
-> installed printbox.0.12
-> installed csexp.1.5.2
-> installed backoff.0.1.1
-> installed bigarray-compat.1.1.0
-> installed multicore-magic.2.3.1
-> installed ocaml_intrinsics_kernel.v0.17.1
-> installed sexplib0.v0.17.0
-> installed stdlib-shims.0.3.0
-> installed ocaml-syntax-shims.1.0.0
-> installed re.1.12.0
-> installed ocaml-compiler-libs.v0.17.0
-> installed cppo.1.8.0
-> installed integers.0.7.0
-> installed saturn_lockfree.0.5.0
-> installed dune-configurator.3.17.2
-> installed parsexp.v0.17.0
-> installed bigstringaf.0.10.0
-> installed angstrom.0.16.1
-> installed sexplib.v0.17.0
-> installed tyxml.4.6.0
-> installed printbox-html.0.12
-> installed ctypes.0.23.0
-> installed base.v0.17.1
-> installed uucp.16.0.0
-> installed ctypes-foreign.0.23.0
-> installed variantslib.v0.17.0
-> installed fieldslib.v0.17.0
-> installed stdio.v0.17.0
-> installed printbox-text.0.12
-> installed printbox-md.0.12
-> installed printbox-ext-plot.0.12
-> installed ppxlib.0.35.0
-> installed ppx_optcomp.v0.17.0
-> installed ppxlib_jane.v0.17.2
-> installed ppx_cold.v0.17.0
-> installed ppx_here.v0.17.0
-> installed ppx_variants_conv.v0.17.0
-> installed ppx_fields_conv.v0.17.0
-> installed ppx_enumerate.v0.17.0
-> installed ppx_globalize.v0.17.0
-> installed ppx_compare.v0.17.0
-> installed ppx_deriving.6.0.3
-> installed ppx_sexp_conv.v0.17.0
-> installed ppx_hash.v0.17.0
-> installed ppx_assert.v0.17.0
-> installed ppx_base.v0.17.0
-> installed ppx_minidebug.2.1.0
-> installed jst-config.v0.17.0
-> installed ppx_string.v0.17.0
-> installed time_now.v0.17.0
-> installed ppx_inline_test.v0.17.0
-> installed ppx_expect.v0.17.2
Done.
# To update the current shell environment, run: eval $(opam env)
2025-03-20 21:23.32 ---> saved as "35e86cc8574ae6ad538d76ede0969ab6bdf9813e939dbb9039d685533419edac"


/src: (copy (src .) (dst /src))
2025-03-20 21:23.33 ---> saved as "0d7a4c7459c9ee0fd8bad7a04f00bca2a24ce28fdd8793951247edab0df3420b"


/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
(cd _build/default/test_ppx && ./test_ppx_op.exe)


Welcome to OCANNL! Reading configuration defaults from /src/_build/default/test_ppx/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/default/test_ppx && ./test_ppx_op_expected.exe)


Welcome to OCANNL! Reading configuration defaults from /src/_build/default/test_ppx/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test && .tutorials.inline-tests/inline_test_runner_tutorials.exe inline-test-runner tutorials -partition '' -source-tree-root .. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test && .tutorials.inline-tests/inline_test_runner_tutorials.exe inline-test-runner tutorials -partition 'Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/04d651b99d6bd09b8967af2899ab61ec/default/test/ocannl_config.' -source-tree-root .. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test && .tutorials.inline-tests/inline_test_runner_tutorials.exe inline-test-runner tutorials -partition 'Retrieving commandline, environment, or config file variable ocannl_log_level' -source-tree-root .. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test && .tutorials.inline-tests/inline_test_runner_tutorials.exe inline-test-runner tutorials -partition 'Found 0, in the config file' -source-tree-root .. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test && .tutorials.inline-tests/inline_test_runner_tutorials.exe inline-test-runner tutorials -partition zero2hero_1of7.ml -source-tree-root .. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test && .tutorials.inline-tests/inline_test_runner_tutorials.exe inline-test-runner tutorials -partition primitive_ops.ml -source-tree-root .. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test && .tutorials.inline-tests/inline_test_runner_tutorials.exe inline-test-runner tutorials -partition hello_world_op.ml -source-tree-root .. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test && .tutorials.inline-tests/inline_test_runner_tutorials.exe inline-test-runner tutorials -partition moons_demo_parallel.ml -source-tree-root .. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
File "test/dune", line 4, characters 7-30:
4 |  (name moons_demo_parallel_run)
^^^^^^^^^^^^^^^^^^^^^^^
(cd _build/default/test && ./moons_demo_parallel_run.exe)


Welcome to OCANNL! Reading configuration defaults from /src/_build/default/test/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
("Set log_level to" 1)
└─{orphaned from #2}
Retrieving commandline, environment, or config file variable ocannl_backend
Found cc, in the config file
Retrieving commandline, environment, or config file variable ocannl_ll_ident_style
Not found, using default heuristic
Retrieving commandline, environment, or config file variable ocannl_cc_backend_optimization_level
Not found, using default 3
Retrieving commandline, environment, or config file variable ocannl_cc_backend_compiler_command
Not found, using default gcc
Cc_backend.c_compile_and_load: compilation failed with errors:
/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccOjqIOg.o: warning: relocation against `fmaxf' in read-only section `.text'
/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccOjqIOg.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
collect2: error: ld returned 1 exit status


Fatal error: exception Invalid_argument("Cc_backend.c_compile_and_load: compilation failed with errors:\n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccOjqIOg.o: warning: relocation against `fmaxf' in read-only section `.text'\n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccOjqIOg.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\ncollect2: error: ld returned 1 exit status\n")
Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
Called from Ocannl__Train.example_train_loop in file "lib/train.ml", line 428, characters 20-61
Called from Dune__exe__Moons_demo_parallel_run.main in file "test/moons_demo_parallel_run.ml", lines 65-69, characters 4-8
Called from Base__Exn.protectx in file "src/exn.ml", line 79, characters 8-11
Re-raised at Base__Exn.raise_with_original_backtrace in file "src/exn.ml" (inlined), line 59, characters 2-50
Called from Base__Exn.protectx in file "src/exn.ml", line 86, characters 13-49
Called from Base__Exn.protect in file "src/exn.ml" (inlined), line 92, characters 26-49
Called from Dune__exe__Moons_demo_parallel_run in file "test/moons_demo_parallel_run.ml", line 90, characters 2-53
(cd _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test && .tutorials.inline-tests/inline_test_runner_tutorials.exe inline-test-runner tutorials -partition einsum_trivia.ml -source-tree-root .. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
(cd _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test && .tutorials.inline-tests/inline_test_runner_tutorials.exe inline-test-runner tutorials -partition micrograd_demo.ml -source-tree-root .. -diff-cmd -)


Welcome to OCANNL! Reading configuration defaults from /src/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/ocannl_config.
Retrieving commandline, environment, or config file variable ocannl_log_level
Found 0, in the config file
File "test/zero2hero_1of7.ml", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/zero2hero_1of7.ml _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/zero2hero_1of7.ml.corrected
diff --git a/_build/default/test/zero2hero_1of7.ml b/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/zero2hero_1of7.ml.corrected
index d794718..497bdc5 100644
--- a/_build/default/test/zero2hero_1of7.ml
+++ b/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/zero2hero_1of7.ml.corrected
@@ -28,54 +28,14 @@ let%expect_test "Graph drawing recompile" =
Train.set_hosted x.value;
Train.forward_and_forget backend ctx f_nd;
Tensor.print_tree ~with_grad:true ~depth:9 f_nd;
-  [%expect
-    {|
-                                 #15 +_f_nd
-                                  6.00e+1
-                                 #16 grad_+_f_nd Virt/30
-                                 <void>
-                            #13 - Virt/152                             │#2 5. Virt/40
-                            <void>                                     │<void>
-                            #14 grad_- Virt/30                         │
-                            <void>                                     │
-           #11 *. Virt/152            │       #4 *. Virt/152           │
-           <void>                     │       <void>                   │
-           #12 grad_*. Virt/30        │       #5 grad_*. Virt/30       │
-           <void>                     │       <void>                   │
-    #10 3. Virt/40│#7 **. Virt/152    │#3 4. Virt/40│#0 x              │
-    <void>        │<void>             │<void>       │ 5.00             │
-                  │#8 grad_**. Virt/30│             │#1 grad_x Local/30│
-                  │<void>             │             │<void>            │
-                  │[0]│ #6 2. Virt/40 │             │                  │
-                  │   │ <void>        │             │                  │
-    |}];
+  [%expect.unreachable];
let%op f = (3 *. ("x" [ 5 ] **. 2)) - (4 *. x) + 5 in
Train.every_non_literal_on_host f;
let f_upd = Train.grad_update f in
let f_bprop = Train.to_routine (module Backend) ctx IDX.empty f_upd.fwd_bprop in
Train.run f_bprop;
Tensor.print_tree ~with_grad:true ~depth:9 f;
-  [%expect
-    {|
-                                   #32 +_f
-                                    6.00e+1
-                                   #33 grad_+_f
-                                    1.00
-                             #30 -                              │#19 5. Virt/40
-                              5.50e+1                           │<void>
-                             #31 grad_-                         │
-                              1.00                              │
-               #28 *.                 │       #21 *.            │
-                7.50e+1               │        2.00e+1          │
-               #29 grad_*.            │       #22 grad_*.       │
-                1.00                  │        -1.00            │
-    #27 3. Virt/40│   #24 **.         │#20 4. Virt/40│#17 x     │
-    <void>        │    2.50e+1        │<void>        │ 5.00     │
-                  │   #25 grad_**.    │              │#18 grad_x│
-                  │    3.00           │              │ 2.60e+1  │
-                  │[17]│#23 2. Virt/40│              │          │
-                  │    │<void>        │              │          │
-    |}];
+  [%expect.unreachable];
let xs = Array.init 10 ~f:Float.(fun i -> of_int i - 5.) in
let ys =
Array.map xs ~f:(fun v ->
@@ -94,54 +54,41 @@ let%expect_test "Graph drawing recompile" =
[ Scatterplot { points = Array.zip_exn xs ys; content = PrintBox.line "#" } ]
in
PrintBox_text.output Stdio.stdout plot_box;
-  [%expect
-    {|
-    ┌────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 1.00e+2│#                                                                                                   │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │           #                                                                                        │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │f       │                                                                                                    │
-    │(       │                                                                                                    │
-    │x       │                                                                                                    │
-    │)       │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                      #                                                                             │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                   #│
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                 #                                                                  │
-    │        │                                                                                                    │
-    │        │                                                                                        #           │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                            #                                                       │
-    │        │                                                                             #                      │
-    │        │                                                                                                    │
-    │ 4.00   │                                                       #          #                                 │
-    ├────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │        │-5.00                                                                                           4.00│
-    │        │                                                 x                                                  │
-    └────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc9JP9hR.o: warning: relocation against `fmaf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc9JP9hR.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.forward_and_ctx in file "lib/train.ml", line 517, characters 37-90
+  Re-raised at Ocannl__Train.forward_and_ctx in file "lib/train.ml", lines 511-520, characters 32-17
+  Called from Ocannl__Train.forward_and_forget in file "lib/train.ml", line 524, characters 12-75
+  Called from Tutorials__Zero2hero_1of7.(fun) in file "test/zero2hero_1of7.ml", line 29, characters 2-43
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc9JP9hR.o: warning: relocation against `fmaf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc9JP9hR.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "Graph drawing fetch" =
Tensor.unsafe_reinitialize ();
@@ -202,54 +149,39 @@ let%expect_test "Graph drawing fetch" =
]
in
PrintBox_text.output Stdio.stdout plot_box;
-  [%expect
-    {|
-    ┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 1.00e+2 │#                                                                                                   │
-    │         │#                                                                                                   │
-    │         │  #                                                                                                 │
-    │         │  #                                                                                                 │
-    │         │    #                                                                                               │
-    │         │     #                                                                                              │
-    │         │     #                                                                                              │
-    │         │       #                                                                                            │
-    │         │       #                                                                                            │
-    │         │         #                                                                                          │
-    │         │          ##                                                                                        │
-    │         │            #                                                                                       │
-    │         │            #                                                                                       │
-    │         │             # #                                                                                   #│
-    │         │                #                                                                               # # │
-    │         │                 #                                                                              #   │
-    │         │                   #                                                                          ##    │
-    │         │                    ##                                                                       #      │
-    │f        │                      #                                                                    #        │
-    │(        │                      # #                                                                ##         │
-    │x        │                         ##                                                             #           │
-    │)        │                           #                                                          #             │
-    │         │                            # #                                                    ###            **│
-    │         │                               ##                                                #         * ****   │
-    │         │                                 # #                                           ##     * ****        │
-    │         │                                    ###                                     ##   * ***              │
-    │         │                                      # #                               # ##** **                   │
-    │         │                                          ####                     # ###* *                         │
-    │         │                                             # #### # #    ## # ####                                │
-    │         │                                                       # # ** *                                     │
-    │         │-    -    -    -    -    -    -    -    -    -    - * ** *  -    -    -    -    -    -    -    -    │
-    │         │                                             * ****                                                 │
-    │         │                                        * ****                                                      │
-    │         │                                   **** *                                                           │
-    │         │                            * ****                                                                  │
-    │         │                      * ****                                                                        │
-    │         │                 * ****                                                                             │
-    │         │            ** ***                                                                                  │
-    │         │     * * ***                                                                                        │
-    │ -3.40e+1│* * **                                                                                              │
-    ├─────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │         │-5.00                                                                                           4.90│
-    │         │                                                 x                                                  │
-    └─────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccRlVhug.o: warning: relocation against `fmaf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccRlVhug.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Zero2hero_1of7.(fun) in file "test/zero2hero_1of7.ml", line 186, characters 19-82
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccRlVhug.o: warning: relocation against `fmaf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccRlVhug.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "Simple gradients hosted" =
Tensor.unsafe_reinitialize ();
@@ -271,96 +203,56 @@ let%expect_test "Simple gradients hosted" =
let sgd_routine = Train.to_routine (module Backend) grad_routine.context IDX.empty sgd in
(* Check out the initial state without running a forward pass. *)
Tensor.print_tree ~spy:true ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                                        #12 *._l Host&stream/41
-                                        <not-in-yet>
-                                        #13 grad_*._l Host&stream/41
-                                        <not-in-yet>
-                            #8 +_d Host&stream/41                             │#10 f Host&shared/39
-                            <not-in-yet>                                      │<not-in-yet>
-                            #9 grad_+_d Host&stream/41                        │#11 grad_f Host&stream/41
-                            <not-in-yet>                                      │<not-in-yet>
-               #4 *._e Host&stream/41                │#6 c Host&shared/39     │
-               <not-in-yet>                          │<not-in-yet>            │
-               #5 grad_*._e Host&stream/41           │#7 grad_c Host&stream/41│
-               <not-in-yet>                          │<not-in-yet>            │
-    #0 a Host&shared/39     │#2 b Host&shared/39     │                        │
-    <not-in-yet>            │<not-in-yet>            │                        │
-    #1 grad_a Host&stream/41│#3 grad_b Host&stream/41│                        │
-    <not-in-yet>            │<not-in-yet>            │                        │
-    |}];
+  [%expect.unreachable];
(* Do not update the params: all values and gradients will be at initial points, which are
specified in the tensor in the brackets. *)
Train.run grad_routine;
Tensor.print_tree ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                 #12 *._l
-                  -8.00
-                 #13 grad_*._l
-                  1.00
-             #8 +_d              │#10 f
-              4.00               │ -2.00
-             #9 grad_+_d         │#11 grad_f
-              -2.00              │ 4.00
-       #4 *._e         │#6 c     │
-        -6.00          │ 1.00e+1 │
-       #5 grad_*._e    │#7 grad_c│
-        -2.00          │ -2.00   │
-    #0 a     │#2 b     │         │
-     2.00    │ -3.00   │         │
-    #1 grad_a│#3 grad_b│         │
-     6.00    │ -4.00   │         │
-    |}];
+  [%expect.unreachable];
(* Now we update the params, but we are not doing the forward and backward passes: only params
values will change, compared to the above. The update is in the opposite direction of the
gradient. *)
Train.run sgd_routine;
Tensor.print_tree ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                 #12 *._l
-                  -8.00
-                 #13 grad_*._l
-                  1.00
-             #8 +_d              │#10 f
-              4.00               │ -2.40
-             #9 grad_+_d         │#11 grad_f
-              -2.00              │ 4.00
-       #4 *._e         │#6 c     │
-        -6.00          │ 1.02e+1 │
-       #5 grad_*._e    │#7 grad_c│
-        -2.00          │ -2.00   │
-    #0 a     │#2 b     │         │
-     1.40    │ -2.60   │         │
-    #1 grad_a│#3 grad_b│         │
-     6.00    │ -4.00   │         │
-    |}];
+  [%expect.unreachable];


(* Now the params will remain as above, but both param gradients and the values and gradients of
other nodes will change thanks to the forward and backward passes. *)
Train.run grad_routine;
Tensor.print_tree ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                 #12 *._l
-                  -1.57e+1
-                 #13 grad_*._l
-                  1.00
-             #8 +_d              │#10 f
-              6.56               │ -2.40
-             #9 grad_+_d         │#11 grad_f
-              -2.40              │ 6.56
-       #4 *._e         │#6 c     │
-        -3.64          │ 1.02e+1 │
-       #5 grad_*._e    │#7 grad_c│
-        -2.40          │ -2.40   │
-    #0 a     │#2 b     │         │
-     1.40    │ -2.60   │         │
-    #1 grad_a│#3 grad_b│         │
-     6.24    │ -3.36   │         │
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccJLR1Ep.o: warning: relocation against `fmaf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccJLR1Ep.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Zero2hero_1of7.(fun) in file "test/zero2hero_1of7.ml", line 270, characters 21-83
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccJLR1Ep.o: warning: relocation against `fmaf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccJLR1Ep.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "Simple gradients virtual" =
Tensor.unsafe_reinitialize ();
@@ -401,48 +293,12 @@ let%expect_test "Simple gradients virtual" =
let grad_routine = Train.to_routine (module Backend) ctx IDX.empty grad.fwd_bprop in
(* Check out the state without running a forward pass or compiling the SGD update. *)
Tensor.print_tree ~spy:true ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                                        #12 *._l Host&stream/41
-                                        <not-in-yet>
-                                        #13 grad_*._l Virt/40
-                                        <not-in-yet>
-                              #8 +_d Local/46                              │#10 f Host&shared/39
-                              <not-in-yet>                                 │<not-in-yet>
-                              #9 grad_+_d Virt/40                          │#11 grad_f Dev-stream/41
-                              <not-in-yet>                                 │<not-in-yet>
-                 #4 *._e Virt/152                  │#6 c Host&shared/39    │
-                 <not-in-yet>                      │<not-in-yet>           │
-                 #5 grad_*._e Virt/40              │#7 grad_c Dev-stream/41│
-                 <not-in-yet>                      │<not-in-yet>           │
-    #0 a Host&shared/39    │#2 b Host&shared/39    │                       │
-    <not-in-yet>           │<not-in-yet>           │                       │
-    #1 grad_a Dev-stream/41│#3 grad_b Dev-stream/41│                       │
-    <not-in-yet>           │<not-in-yet>           │                       │
-    |}];
+  [%expect.unreachable];
(* Do not update the params: all values and gradients will be at initial points, which are
specified in the tensor in the brackets. *)
Train.run grad_routine;
Tensor.print_tree ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                                         #12 *._l
-                                          -8.00
-                                         #13 grad_*._l Virt/40
-                                         <void>
-                              #8 +_d Local/46                              │#10 f
-                              <void>                                       │ -2.00
-                              #9 grad_+_d Virt/40                          │#11 grad_f Dev-stream/41
-                              <void>                                       │<void>
-                 #4 *._e Virt/152                  │#6 c                   │
-                 <void>                            │ 1.00e+1               │
-                 #5 grad_*._e Virt/40              │#7 grad_c Dev-stream/41│
-                 <void>                            │<void>                 │
-    #0 a                   │#2 b                   │                       │
-     2.00                  │ -3.00                 │                       │
-    #1 grad_a Dev-stream/41│#3 grad_b Dev-stream/41│                       │
-    <void>                 │<void>                 │                       │
-    |}];
+  [%expect.unreachable];
(* Only now compile the SGD update. *)
let sgd_routine = Train.to_routine (module Backend) grad_routine.context IDX.empty sgd in
(* Now we update the params, but are not doing the forward and backward passes: only params values
@@ -450,48 +306,44 @@ let%expect_test "Simple gradients virtual" =
always be recomputed using the latest parameter state. *)
Train.run sgd_routine;
Tensor.print_tree ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                                         #12 *._l
-                                          -8.00
-                                         #13 grad_*._l Virt/40
-                                         <void>
-                              #8 +_d Local/46                              │#10 f
-                              <void>                                       │ -2.40
-                              #9 grad_+_d Virt/40                          │#11 grad_f Dev-stream/41
-                              <void>                                       │<void>
-                 #4 *._e Virt/152                  │#6 c                   │
-                 <void>                            │ 1.02e+1               │
-                 #5 grad_*._e Virt/40              │#7 grad_c Dev-stream/41│
-                 <void>                            │<void>                 │
-    #0 a                   │#2 b                   │                       │
-     1.40                  │ -2.60                 │                       │
-    #1 grad_a Dev-stream/41│#3 grad_b Dev-stream/41│                       │
-    <void>                 │<void>                 │                       │
-    |}];
+  [%expect.unreachable];
(* Now the params will remain as above, but both param gradients and the values and gradients of
other nodes will change thanks to the forward and backward passes. *)
Train.run grad_routine;
Tensor.print_tree ~with_grad:true ~depth:9 l;
-  [%expect
-    {|
-                                         #12 *._l
-                                          -1.57e+1
-                                         #13 grad_*._l Virt/40
-                                         <void>
-                              #8 +_d Local/46                              │#10 f
-                              <void>                                       │ -2.40
-                              #9 grad_+_d Virt/40                          │#11 grad_f Dev-stream/41
-                              <void>                                       │<void>
-                 #4 *._e Virt/152                  │#6 c                   │
-                 <void>                            │ 1.02e+1               │
-                 #5 grad_*._e Virt/40              │#7 grad_c Dev-stream/41│
-                 <void>                            │<void>                 │
-    #0 a                   │#2 b                   │                       │
-     1.40                  │ -2.60                 │                       │
-    #1 grad_a Dev-stream/41│#3 grad_b Dev-stream/41│                       │
-    <void>                 │<void>                 │                       │
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccu5tFtd.o: warning: relocation against `fmaf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccu5tFtd.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Zero2hero_1of7.(fun) in file "test/zero2hero_1of7.ml", line 401, characters 21-83
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccu5tFtd.o: warning: relocation against `fmaf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccu5tFtd.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "tanh plot" =
Tensor.unsafe_reinitialize ();
@@ -510,21 +362,39 @@ let%expect_test "2D neuron hosted" =
let routine = Train.to_routine (module Backend) ctx IDX.empty update.fwd_bprop in
Train.run routine;
Tensor.print_tree ~with_grad:true ~depth:9 v;
-  [%expect
-    {|
-                 #8 +_v
-                  7.00e-1
-                 #9 grad_+_v
-                  1.00
-             #6 *              │#0 b
-              -6.00            │ 6.70
-             #7 grad_*         │#1 grad_b
-              1.00             │ 1.00
-    #2 w         │#4 x         │
-     -3.00  1.00 │ 2.00  0.00  │
-    #3 grad_w    │#5 grad_x    │
-     2.00  0.00  │ -3.00  1.00 │
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccxMGGF5.o: warning: relocation against `fmaf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccxMGGF5.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Zero2hero_1of7.(fun) in file "test/zero2hero_1of7.ml", line 510, characters 16-80
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccxMGGF5.o: warning: relocation against `fmaf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccxMGGF5.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "2D neuron virtual" =
Tensor.unsafe_reinitialize ();
@@ -537,18 +407,36 @@ let%expect_test "2D neuron virtual" =
let routine = Train.to_routine (module Backend) ctx IDX.empty update.fwd_bprop in
Train.run routine;
Tensor.print_tree ~with_grad:true ~depth:9 v;
-  [%expect
-    {|
-                      #8 +_v
-                       7.00e-1
-                      #9 grad_+_v Virt/40
-                      <void>
-              #6 * Local/46              │#0 b
-              <void>                     │ 6.70
-              #7 grad_* Virt/40          │#1 grad_b Local/46
-              <void>                     │<void>
-    #2 w              │#4 x              │
-     -3.00  1.00      │ 2.00  0.00       │
-    #3 grad_w Local/46│#5 grad_x Local/46│
-    <void>            │<void>            │
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccuZ84m8.o: warning: relocation against `fmaf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccuZ84m8.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Zero2hero_1of7.(fun) in file "test/zero2hero_1of7.ml", line 537, characters 16-80
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccuZ84m8.o: warning: relocation against `fmaf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccuZ84m8.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]
File "test/primitive_ops.ml", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/primitive_ops.ml _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/primitive_ops.ml.corrected
diff --git a/_build/default/test/primitive_ops.ml b/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/primitive_ops.ml.corrected
index 4b402ed..73d861d 100644
--- a/_build/default/test/primitive_ops.ml
+++ b/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/primitive_ops.ml.corrected
@@ -52,366 +52,273 @@ let%expect_test "relu" =
let%op f x = relu x in
let plot_box = plot_unop ~f in
PrintBox_text.output Stdio.stdout plot_box;
-  [%expect
-    {|
-    ┌─────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 4.90│                                                                                                   #│
-    │     │                                                                                                  # │
-    │     │                                                                                                #   │
-    │     │                                                                                                #   │
-    │     │                                                                                              ##    │
-    │     │                                                                                             #      │
-    │     │                                                                                           #        │
-    │     │                                                                                           #        │
-    │     │                                                                                         ##         │
-    │     │                                                                                        #           │
-    │     │                                                                                      #             │
-    │     │                                                                                      #             │
-    │     │                                                                                    ##              │
-    │     │                                                                                   #                │
-    │     │                                                                                 #                  │
-    │     │                                                                                 #                  │
-    │     │                                                                               ##                   │
-    │     │                                                                             #                      │
-    │f    │                                                                             #                      │
-    │(    │                                                                            #                       │
-    │x    │                                                                          ##                        │
-    │)    │                                                                        #                           │
-    │     │                                                                        #                           │
-    │     │                                                                       #                            │
-    │     │                                                                     ##                             │
-    │     │                                                                   #                                │
-    │     │                                                                   #                                │
-    │     │                                                                  #                                 │
-    │     │                                                                ##                                  │
-    │     │                                                              #                                     │
-    │     │                                                              #                                     │
-    │     │                                                            #                                       │
-    │     │                                                  * * ** * ** * **** **** **** *** **** **** **** **│
-    │     │                                                         #                                          │
-    │     │                                                         #                                          │
-    │     │                                                       #                                            │
-    │     │                                                      ##                                            │
-    │     │                                                    #                                               │
-    │     │                                                    #                                               │
-    │ 0.00│* * ** * ***** *** **** ***** **** **** * **** ****    -    -    -    -    -    -    -    -    -    │
-    ├─────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │     │-5.00                                                                                           4.90│
-    │     │                                                 x                                                  │
-    └─────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccSZGake.o: warning: relocation against `fmaxf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccSZGake.o: relocation R_X86_64_PC32 against undefined symbol `fmaxf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Primitive_ops.plot_unop in file "test/primitive_ops.ml", line 34, characters 19-82
+  Called from Tutorials__Primitive_ops.(fun) in file "test/primitive_ops.ml", line 53, characters 17-29
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccSZGake.o: warning: relocation against `fmaxf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccSZGake.o: relocation R_X86_64_PC32 against undefined symbol `fmaxf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "sat01" =
let%op f x = sat01 x in
let plot_box = plot_unop ~f in
PrintBox_text.output Stdio.stdout plot_box;
-  [%expect
-    {|
-    ┌─────┬───────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 1.00│                                        * **** **** * ** * *# # #### #### #### ### #### #### #### ##│
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                           #                                        │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                         #                                          │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                         #                                          │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                       #                                            │
-    │     │                                                                                                    │
-    │f    │                                                                                                    │
-    │(    │                                                                                                    │
-    │x    │                                                       #                                            │
-    │)    │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                      #                                             │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                    #                                               │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                    #                                               │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                  #                                                 │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │ 0.00│* * ** * ***** *** **** ***** **** **** * #### ####    -    * * **** **** **** *** **** **** **** **│
-    ├─────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │     │-5.00                                                                                           4.90│
-    │     │                                                 x                                                  │
-    └─────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc76eB4R.o: warning: relocation against `fminf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc76eB4R.o: relocation R_X86_64_PC32 against undefined symbol `fminf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Primitive_ops.plot_unop in file "test/primitive_ops.ml", line 34, characters 19-82
+  Called from Tutorials__Primitive_ops.(fun) in file "test/primitive_ops.ml", line 106, characters 17-29
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc76eB4R.o: warning: relocation against `fminf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc76eB4R.o: relocation R_X86_64_PC32 against undefined symbol `fminf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]
let%expect_test "exp(x)" =
let%op f x = exp x in
let plot_box = plot_unop ~f in
PrintBox_text.output Stdio.stdout plot_box;
-  [%expect {|
-    ┌────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 1.34e+2│                                                                                                   *│
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                  * │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                *   │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                *   │
-    │        │                                                                                                    │
-    │        │                                                                                               *    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                              *     │
-    │        │                                                                                                    │
-    │f       │                                                                                             *      │
-    │(       │                                                                                                    │
-    │x       │                                                                                           *        │
-    │)       │                                                                                                    │
-    │        │                                                                                           *        │
-    │        │                                                                                                    │
-    │        │                                                                                          *         │
-    │        │                                                                                         *          │
-    │        │                                                                                                    │
-    │        │                                                                                        *           │
-    │        │                                                                                      *             │
-    │        │                                                                                      *             │
-    │        │                                                                                     *              │
-    │        │                                                                                    *               │
-    │        │                                                                                 * *                │
-    │        │                                                                                 *                  │
-    │        │                                                                               **                   │
-    │        │                                                                             *                      │
-    │        │                                                                          ***                       │
-    │        │                                                                      ***                           │
-    │        │                                                              * **** *                              │
-    │ 0.00   │* * ** * ***** *** **** ***** **** **** * **** **** * ** * ** *  -    -    -    -    -    -    -    │
-    ├────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │        │-5.00                                                                                           4.90│
-    │        │                                                 x                                                  │
-    └────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccohdZDq.o: warning: relocation against `expf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccohdZDq.o: relocation R_X86_64_PC32 against undefined symbol `expf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Primitive_ops.plot_unop in file "test/primitive_ops.ml", line 34, characters 19-82
+  Called from Tutorials__Primitive_ops.(fun) in file "test/primitive_ops.ml", line 158, characters 17-29
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccohdZDq.o: warning: relocation against `expf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccohdZDq.o: relocation R_X86_64_PC32 against undefined symbol `expf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "log(x)" =
let%op f x = log x in
let plot_box = plot_unop ~f in
PrintBox_text.output Stdio.stdout plot_box;
-  [%expect {|
-    ┌─────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 1.58│                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │f    │                                                                                                    │
-    │(    │                                                                                                    │
-    │x    │                                                                                                    │
-    │)    │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │ -inf│* * ** * ***** *** **** ***** **** **** * **** **** * ** * ** * **** **** **** *** **** **** **** **│
-    ├─────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │     │-5.00                                                                                           4.90│
-    │     │                                                 x                                                  │
-    └─────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccMFF2hO.o: warning: relocation against `logf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccMFF2hO.o: relocation R_X86_64_PC32 against undefined symbol `logf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Primitive_ops.plot_unop in file "test/primitive_ops.ml", line 34, characters 19-82
+  Called from Tutorials__Primitive_ops.(fun) in file "test/primitive_ops.ml", line 210, characters 17-29
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccMFF2hO.o: warning: relocation against `logf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccMFF2hO.o: relocation R_X86_64_PC32 against undefined symbol `logf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "log2(x)" =
let%op f x = log2 x in
let plot_box = plot_unop ~f in
PrintBox_text.output Stdio.stdout plot_box;
-  [%expect {|
-    ┌─────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 2.29│                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │f    │                                                                                                    │
-    │(    │                                                                                                    │
-    │x    │                                                                                                    │
-    │)    │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │     │                                                                                                    │
-    │ -inf│* * ** * ***** *** **** ***** **** **** * **** **** * ** * ** * **** **** **** *** **** **** **** **│
-    ├─────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │     │-5.00                                                                                           4.90│
-    │     │                                                 x                                                  │
-    └─────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccRIGlYK.o: warning: relocation against `log2f' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccRIGlYK.o: relocation R_X86_64_PC32 against undefined symbol `log2f' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Primitive_ops.plot_unop in file "test/primitive_ops.ml", line 34, characters 19-82
+  Called from Tutorials__Primitive_ops.(fun) in file "test/primitive_ops.ml", line 262, characters 17-29
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccRIGlYK.o: warning: relocation against `log2f' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccRIGlYK.o: relocation R_X86_64_PC32 against undefined symbol `log2f' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "sin(x)" =
let%op f x = sin x in
let plot_box = plot_unop ~f in
PrintBox_text.output Stdio.stdout plot_box;
-  [%expect {|
-    ┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 1.00    │                                                  *                                                 │
-    │         │# # ##                                         **** *         # ####                                │
-    │         │       #                                     *        *       #      ##                             │
-    │         │       #                                     *         *    #          #                            │
-    │         │         #                                  *          *    #           #                           │
-    │         │          #                                *             * #            #                           │
-    │         │                                          *              *                                          │
-    │         │           #                                             #                #                         │
-    │         │            #                           *                  *               #                        │
-    │         │                                        *              #    *                                       │
-    │         │            #                                                               #                       │
-    │         │             #                        *                #    *                                       │
-    │         │                                                      #                      #                      │
-    │         │               #                      *                       *              #                      │
-    │         │*                                                   #                                               │
-    │         │                #                    *                        *                #                    │
-    │         │*                                                   #                                              *│
-    │         │                 #                  *                           *               #                   │
-    │f        │  *                                               #                                               * │
-    │(        │                 #                 *                             *               #                  │
-    │x        │- *  -    -    -    -    -    -    -    -    -    #    -    -    -    -    -    -    -    -    -*   │
-    │)        │                   #             *                                *              #                  │
-    │         │    *                                            #                                              *   │
-    │         │                    #            *                                 *               #                │
-    │         │     *                          *               #                  *                           *    │
-    │         │                     #                                                              #               │
-    │         │     *                         *               #                     *                        *     │
-    │         │                      #                                                              #              │
-    │         │       *              #       *              #                        *                      *      │
-    │         │                                             #                                        #             │
-    │         │       *                #   *                                          *              #    *        │
-    │         │         *                 *                #                           *                  *        │
-    │         │                         #                                                              #           │
-    │         │          *               #*               #                            *                #*         │
-    │         │           *              *               #                               *              *          │
-    │         │            *              #            #                                               * #         │
-    │         │                         * #            #                                  *               #        │
-    │         │            **          *   #         #                                     *         *    #        │
-    │         │               *      *       ##      #                                      *       *       #      │
-    │ -9.99e-1│                ** ***          ## ###                                         *** **         ### ##│
-    ├─────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │         │-5.00                                                                                           4.90│
-    │         │                                                 x                                                  │
-    └─────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccmr1IW2.o: warning: relocation against `sinf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccmr1IW2.o: relocation R_X86_64_PC32 against undefined symbol `sinf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Primitive_ops.plot_unop in file "test/primitive_ops.ml", line 34, characters 19-82
+  Called from Tutorials__Primitive_ops.(fun) in file "test/primitive_ops.ml", line 314, characters 17-29
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccmr1IW2.o: warning: relocation against `sinf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccmr1IW2.o: relocation R_X86_64_PC32 against undefined symbol `sinf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "cos(x)" =
let%op f x = cos x in
let plot_box = plot_unop ~f in
PrintBox_text.output Stdio.stdout plot_box;
-  [%expect {|
-    ┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 1.00    │                                                  #                                                 │
-    │         │                                ** ***         #### #                                         *** **│
-    │         │                              **      *      #        #                                      *      │
-    │         │                            *         *      #         #                                   *        │
-    │         │                           *            *   #          #                                   *        │
-    │         │                           *            *  #             #                                *         │
-    │         │                                          *              #                                          │
-    │         │                          *                *                                             *          │
-    │         │                         *              #                  #                            *           │
-    │         │                                        #   *               #                                       │
-    │         │                        *                                                             *             │
-    │         │                                      #      *              #                         *             │
-    │         │                      *                      *                                                      │
-    │         │                      *               #                       #                      *              │
-    │         │#                                              *                                                    │
-    │         │                     *               #                        #                     *               │
-    │         │#                                               *                                                  #│
-    │         │                    *               #                           #                  *                │
-    │f        │  #                                              *                                                # │
-    │(        │                   *               #                             #               *                  │
-    │x        │- #  -    -    -    -    -    -    -    -    -    *    -    -    -    -    -    -    -    -    -#   │
-    │)        │                 *               #                                #              *                  │
-    │         │    #                                             *                                             #   │
-    │         │                 *               #                                 #            *                   │
-    │         │     #                          #                   *              #                           #    │
-    │         │                *                                                              *                    │
-    │         │     #                         #                    *                #                        #     │
-    │         │               *                                                             *                      │
-    │         │       #                      #                       *               #      *               #      │
-    │         │             *                                         *                                            │
-    │         │       #    *               #                                          #    *              #        │
-    │         │         #                 #                           *                #                  #        │
-    │         │            *                                                              *                        │
-    │         │          #*               #                             *              # *               #         │
-    │         │           #              #                              *                #              #          │
-    │         │          * #                                              *            *               #           │
-    │         │         *               #                                  *           *  #                        │
-    │         │       *    ##          #                                   *          *    #         #             │
-    │         │       *       #      #                                       *      **      #       #              │
-    │ -9.99e-1│* * **          ## ###                                        * ****           ### ##               │
-    ├─────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │         │-5.00                                                                                           4.90│
-    │         │                                                 x                                                  │
-    └─────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccV5BLuM.o: warning: relocation against `sinf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccV5BLuM.o: relocation R_X86_64_PC32 against undefined symbol `cosf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Primitive_ops.plot_unop in file "test/primitive_ops.ml", line 34, characters 19-82
+  Called from Tutorials__Primitive_ops.(fun) in file "test/primitive_ops.ml", line 366, characters 17-29
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccV5BLuM.o: warning: relocation against `sinf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccV5BLuM.o: relocation R_X86_64_PC32 against undefined symbol `cosf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "neg(x)" =
let%op f x = neg x in
@@ -469,50 +376,37 @@ let%expect_test "fma(x, 2, 1)" =
let%op f x = fma x !.2. !.1. in
let plot_box = plot_unop ~f in
PrintBox_text.output Stdio.stdout plot_box;
-  [%expect {|
-    ┌────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 1.08e+1│                                                                                                   #│
-    │        │                                                                                                # # │
-    │        │                                                                                              ###   │
-    │        │                                                                                           # #      │
-    │        │                                                                                         ###        │
-    │        │                                                                                      # #           │
-    │        │                                                                                    ###             │
-    │        │                                                                                 # #                │
-    │        │                                                                               ###                  │
-    │        │                                                                             #                      │
-    │        │                                                                          ###                       │
-    │        │                                                                        #                           │
-    │        │                                                                     ###                            │
-    │        │                                                                   #                                │
-    │        │                                                                ###                                 │
-    │        │                                                            # #                                     │
-    │        │                                                           ##                                       │
-    │        │                                                       # #                                          │
-    │f       │* * ** * ***** *** **** ***** **** **** * **** **** * ** * ** * **** **** **** *** **** **** **** **│
-    │(       │                                                  # #                                               │
-    │x       │                                                 ##                                                 │
-    │)       │                                             # ##                                                   │
-    │        │-    -    -    -    -    -    -    -    -   ##    -    -    -    -    -    -    -    -    -    -    │
-    │        │                                        # ##                                                        │
-    │        │                                      # #                                                           │
-    │        │                                    ###                                                             │
-    │        │                                 # #                                                                │
-    │        │                               ###                                                                  │
-    │        │                           ## #                                                                     │
-    │        │                          ##                                                                        │
-    │        │                      # ##                                                                          │
-    │        │                     ##                                                                             │
-    │        │                 # ##                                                                               │
-    │        │                ##                                                                                  │
-    │        │            ## #                                                                                    │
-    │        │           ##                                                                                       │
-    │        │       # ##                                                                                         │
-    │        │     # #                                                                                            │
-    │        │  # ##                                                                                              │
-    │ -9.00  │# #                                                                                                 │
-    ├────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │        │-5.00                                                                                           4.90│
-    │        │                                                 x                                                  │
-    └────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccYtauOZ.o: warning: relocation against `fmaf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccYtauOZ.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Primitive_ops.plot_unop in file "test/primitive_ops.ml", line 34, characters 19-82
+  Called from Tutorials__Primitive_ops.(fun) in file "test/primitive_ops.ml", line 470, characters 17-29
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccYtauOZ.o: warning: relocation against `fmaf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccYtauOZ.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]
File "test/moons_demo_parallel.ml", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/moons_demo_parallel.ml _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/moons_demo_parallel.ml.corrected
diff --git a/_build/default/test/moons_demo_parallel.ml b/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/moons_demo_parallel.ml.corrected
index dc3def7..7d95ca7 100644
--- a/_build/default/test/moons_demo_parallel.ml
+++ b/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/moons_demo_parallel.ml.corrected
@@ -106,4 +106,36 @@ let%expect_test "Half-moons data parallel" =
]
in
PrintBox_text.output Stdio.stdout plot_loss);
-  [%expect "Success"]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccvHmwT9.o: warning: relocation against `fmaxf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccvHmwT9.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.example_train_loop in file "lib/train.ml", line 428, characters 20-61
+  Called from Tutorials__Moons_demo_parallel.(fun) in file "test/moons_demo_parallel.ml", lines 59-63, characters 4-8
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccvHmwT9.o: warning: relocation against `fmaxf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccvHmwT9.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]
File "test/micrograd_demo.ml", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/micrograd_demo.ml _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/micrograd_demo.ml.corrected
diff --git a/_build/default/test/micrograd_demo.ml b/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/micrograd_demo.ml.corrected
index 52e9675..053095e 100644
--- a/_build/default/test/micrograd_demo.ml
+++ b/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/micrograd_demo.ml.corrected
@@ -31,57 +31,43 @@ let%expect_test "Micrograd README basic example" =
let step = Train.to_routine (module Backend) ctx IDX.empty update.fwd_bprop in
Train.run step;
Tensor.print ~with_code:false ~with_grad:false `Default g;
-  [%expect
-    {|
-    ┌────────────────────┐
-    │[75]: +_g shape 0:1 │
-    │┌┬─────────┐        │
-    │││axis 0   │        │
-    │├┼─────────┤        │
-    │││ 2.47e+1 │        │
-    │└┴─────────┘        │
-    └────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:true `Default a;
-  [%expect
-    {|
-    ┌─────────────────┐
-    │[0]: a shape 0:1 │
-    │┌┬───────┐       │
-    │││axis 0 │       │
-    │├┼───────┤       │
-    │││ -4.00 │       │
-    │└┴───────┘       │
-    └─────────────────┘
-    ┌────────────────────────┐
-                                                              │[0]: a shape 0:1  grad_a│
-                                                              │┌┬─────────┐            │
-                                                              │││axis 0   │            │
-                                                              │├┼─────────┤            │
-                                                              │││ 1.38e+2 │            │
-                                                              │└┴─────────┘            │
-                                                              └────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:true `Default b;
-  [%expect
-    {|
-    ┌─────────────────┐
-    │[2]: b shape 0:1 │
-    │┌┬──────┐        │
-    │││axis 0│        │
-    │├┼──────┤        │
-    │││ 2.00 │        │
-    │└┴──────┘        │
-    └─────────────────┘
-    ┌────────────────────────┐
-                                                              │[2]: b shape 0:1  grad_b│
-                                                              │┌┬─────────┐            │
-                                                              │││axis 0   │            │
-                                                              │├┼─────────┤            │
-                                                              │││ 6.45e+2 │            │
-                                                              │└┴─────────┘            │
-                                                              └────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccc0FfyK.o: warning: relocation against `fmaxf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccc0FfyK.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Micrograd_demo.(fun) in file "test/micrograd_demo.ml", line 31, characters 13-77
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccc0FfyK.o: warning: relocation against `fmaxf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccc0FfyK.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "Micrograd half-moons example" =
Tensor.unsafe_reinitialize ();
@@ -185,223 +171,34 @@ let%expect_test "Micrograd half-moons example" =
in
Stdio.printf "Half-moons scatterplot and decision boundary:\n%!";
PrintBox_text.output Stdio.stdout plot_moons;
-  [%expect
-    {|
-    Half-moons scatterplot and decision boundary:
-    ┌────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │****************************#***********************************************************************│
-    │****************************###***###***#***********************************************************│
-    │***************************#********#***#***********************************************************│
-    │********************#*********************##*#*#****************************************************│
-    │******************#***#*****##*#*#*#****#*#*#*##****************************************************│
-    │**************#*#**###**#*##**##********#**#****###**#**********************************************│
-    │***********#***##***#**##*****************#*#*##*###**********************************************..│
-    │***************#**###******************************##*#******************************************...│
-    │*************#*****#******************************#*#***#*#*************************************....│
-    │*********#***#******************......************##*###**#************************************.....│
-    │******#***#*#*#****************........******************#*#*********************************.......│
-    │*****###****#****************...........****************#***********************************........│
-    │*******#*###****************.............******************#*#*****************************.........│
-    │**********##***************.......%%......***************#**##****************************..........│
-    │*****#***#****************......%..%%......*********************************************..........%.│
-    │**####*******************......%..%..........****************##*#**********************........%...%│
-    │****#*******************.......%%..%..........***************#*#**********************.........%....│
-    │*#****##***************.........%....%.........************##***#********************.......%...%%..│
-    │****#*#***************.........%..%.%...........*************#**#*******************..........%.%...│
-    │##*##****************............%...............**************#*##****************.........%.%.%%%.│
-    │**#####************............%...%%.............*******************************...........%..%.%..│
-    │******************...............%.%.%%............*********#*#*#*#*************................%%..│
-    │***##************................%..%..%............************#*#************.............%...%...│
-    │##**#***********...................%...%.............********#**###***********...........%.%%.......│
-    │###************..................%.%.%................***********##**********..................%....│
-    │**##**********.........................................**********#*********.............%%.%..%.....│
-    │**#**********......................%%...................********##********..............%%.%........│
-    │************..........................%..................****#**#********...................%.......│
-    │***********.........................%%.%..................*****##******...............%..%..........│
-    │**********.............................%%..................***********.................%%.%%........│
-    │*********..............................%...%................*******.....................%%%.........│
-    │********...................................%..%....................................%.....%..........│
-    │*******.................................%%..%.%................................%.%.%.%%.............│
-    │******.....................................%%.%...%%.%.......................%%%....%.%.%...........│
-    │*****....................................%.....%.%..%....................%.....%%.%.%...............│
-    │****........................................%%...%.%%%%..%.......%.........%%.%%....................│
-    │***...............................................%..%.......%..%%%%...%.%..%.%.....................│
-    │**.................................................%.%.%............%..%...%........................│
-    │*.................................................%....%.%......%%...%.%............................│
-    │..........................................................%..%......%%%.............................│
-    └────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Stdio.printf "Loss:\n%!";
let plot_loss =
PrintBox_utils.plot ~x_label:"step" ~y_label:"loss"
[ Line_plot { points = Array.of_list_rev !losses; content = PrintBox.line "-" } ]
in
PrintBox_text.output Stdio.stdout plot_loss;
-  [%expect
-    {|
-    Loss:
-    ┌────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 3.79e+1│-                                                                                                   │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │l       │                                                                                                    │
-    │o       │                                                                                                    │
-    │s       │                                                                                                    │
-    │s       │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │-                                                                                                   │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │                                                                                                    │
-    │        │-       -         -                                                                                 │
-    │ 0.00   │----------------------------------------------------------------------------------------------------│
-    ├────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │        │0.00                                                                                         3.99e+2│
-    │        │                                                step                                                │
-    └────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Stdio.printf "Log-loss, for better visibility:\n%!";
let plot_loss =
PrintBox_utils.plot ~x_label:"step" ~y_label:"log loss"
[ Line_plot { points = Array.of_list_rev !log_losses; content = PrintBox.line "-" } ]
in
PrintBox_text.output Stdio.stdout plot_loss;
-  [%expect
-    {|
-    Log-loss, for better visibility:
-    ┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ 3.63    │-                                                                                                   │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │-                                                                                                   │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │-                                                                                                   │
-    │         │        -         -                                                                                 │
-    │         │ -  -                        -                                                                      │
-    │         │------       -                                                                                      │
-    │         │ ---- -  - --- -   - - -    -                                                                       │
-    │         │   --  -  - - ---     --  -  --            -                                                        │
-    │         │  -  -- - -    ---  - - ---  -----       - --                                                       │
-    │l        │       --  -      - -      -     ---  -    -         -                                              │
-    │o        │       - -  -   --            -  --  - -  -     -                        -                          │
-    │g        │               -     -   -      -  --     - -    -  -     -                   -          -          │
-    │         │     - -     -   --      -                  -      -  --       - -         -                        │
-    │l        │            -             -            --    --            -  -         -  -                       -│
-    │o        │        -        -                           -       -  -       -   -           - -          -    - │
-    │s        │                               -     -        -      -                             --   -           │
-    │s        │                      -                                                   -                         │
-    │         │                       -   -                          -    -           -        -       -    -    - │
-    │         │                   -               - -  -                               -                           │
-    │         │                                                                             -   -                  │
-    │         │                                                  -    -              -                             │
-    ││                                      -                                        -                    │
-    │         │                                                                                                    │
-    │         │                            -                                                                       │
-    │         │                                                                -                                   │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │         │          -                                                                                         │
-    │         │                                                                                                    │
-    │         │                                                                                                    │
-    │ -1.00e+1│     -   - -  -   ----- -- --------------- ---------------------------------------------------------│
-    ├─────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │         │0.00                                                                                         3.99e+2│
-    │         │                                                step                                                │
-    └─────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Stdio.printf "\nLearning rate:\n%!";
let plot_lr =
PrintBox_utils.plot ~x_label:"step" ~y_label:"learning rate"
[ Line_plot { points = Array.of_list_rev !learning_rates; content = PrintBox.line "-" } ]
in
PrintBox_text.output Stdio.stdout plot_lr;
-  [%expect
-    {|
-    Learning rate:
-    ┌─────────┬────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │ -1.00e-1│                                                                                                   -│
-    │         │                                                                                                 ---│
-    │         │                                                                                              ----  │
-    │         │                                                                                            ---     │
-    │         │                                                                                         ----       │
-    │         │                                                                                       ---          │
-    │         │                                                                                    ---             │
-    │         │                                                                                  ---               │
-    │         │                                                                               ---                  │
-    │         │                                                                            ----                    │
-    │         │                                                                          ---                       │
-    │         │                                                                       ----                         │
-    │         │                                                                     ---                            │
-    │l        │                                                                  ----                              │
-    │e        │                                                                ---                                 │
-    │a        │                                                             ---                                    │
-    │r        │                                                           ---                                      │
-    │n        │                                                        ---                                         │
-    │i        │                                                     ----                                           │
-    │n        │                                                   ---                                              │
-    │g        │                                                ----                                                │
-    │         │                                              ---                                                   │
-    │r        │                                           ----                                                     │
-    │a        │                                         ---                                                        │
-    │t        │                                      ---                                                           │
-    │e        │                                    ---                                                             │
-    │         │                                 ---                                                                │
-    │         │                              ----                                                                  │
-    │         │                            ---                                                                     │
-    │         │                         ----                                                                       │
-    │         │                       ---                                                                          │
-    │         │                    ----                                                                            │
-    │         │                  ---                                                                               │
-    │         │               ---                                                                                  │
-    │         │             ---                                                                                    │
-    │         │          ---                                                                                       │
-    │         │       ----                                                                                         │
-    │         │     ---                                                                                            │
-    │         │  ----                                                                                              │
-    │ -2.00e-1│---                                                                                                 │
-    ├─────────┼────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │         │0.00                                                                                         3.99e+2│
-    │         │                                                step                                                │
-    └─────────┴────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];


(* Testing how the syntax extension %op creates labels for the resulting tensors: *)
Stdio.printf "mlp_result's name: %s\n%!" @@ Tensor.debug_name mlp_result;
(* Note: mlp_result is not included in the resulting tensor's label, because the identifier label
does not propagate across function calls. *)
-  [%expect {| mlp_result's name: mlp_point |}];
+  [%expect.unreachable];
(Stdio.printf "(mlp moons_input) name: %s\n%!"
@@ Tensor.debug_name
@@
@@ -415,4 +212,36 @@ let%expect_test "Micrograd half-moons example" =
] ->
subtensor
| _ -> assert false);
-  [%expect {| (mlp moons_input) name: mlp_moons_input |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccJS0YRn.o: warning: relocation against `fmaxf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccJS0YRn.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.to_routine in file "lib/train.ml", line 370, characters 26-61
+  Called from Tutorials__Micrograd_demo.(fun) in file "test/micrograd_demo.ml", line 142, characters 4-93
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccJS0YRn.o: warning: relocation against `fmaxf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccJS0YRn.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]
File "test/hello_world_op.ml", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/hello_world_op.ml _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/hello_world_op.ml.corrected
diff --git a/_build/default/test/hello_world_op.ml b/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/hello_world_op.ml.corrected
index adddfb7..789686e 100644
--- a/_build/default/test/hello_world_op.ml
+++ b/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/hello_world_op.ml.corrected
@@ -61,29 +61,43 @@ let%expect_test "Matrix multiplication dims 1x1" =
Train.forward_and_forget backend ctx y;
(* Punning for ["hey"] above introduced the [hey] identifier. *)
Tensor.print ~with_code:false ~with_grad:false `Default @@ hey;
-  [%expect
-    {|
-    ┌────────────────────────┐
-    │[0]: hey shape 1:1->0:1 │
-    │┌──────┬──────┐         │
-    ││      │axis 1│         │
-    │├──────┼──────┤         │
-    ││axis 0│ 7.00 │         │
-    │└──────┴──────┘         │
-    └────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default @@ y;
-  [%expect
-    {|
-    ┌───────────────────┐
-    │[6]: +_y shape 0:1 │
-    │┌┬─────────┐       │
-    │││axis 0   │       │
-    │├┼─────────┤       │
-    │││ 1.50e+1 │       │
-    │└┴─────────┘       │
-    └───────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cccfubj5.o: warning: relocation against `fmaf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cccfubj5.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.forward_and_ctx in file "lib/train.ml", line 517, characters 37-90
+  Re-raised at Ocannl__Train.forward_and_ctx in file "lib/train.ml", lines 511-520, characters 32-17
+  Called from Ocannl__Train.forward_and_forget in file "lib/train.ml", line 524, characters 12-75
+  Called from Tutorials__Hello_world_op.(fun) in file "test/hello_world_op.ml", line 61, characters 2-40
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cccfubj5.o: warning: relocation against `fmaf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cccfubj5.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "Print constant tensor" =
Tensor.unsafe_reinitialize ();
@@ -415,31 +429,43 @@ let%expect_test "Matrix multiplication dims 2x3" =
let%op y = ("hey" 7.0 * [ 2; 3 ]) + [ 4; 5; 6 ] in
Train.forward_and_forget backend ctx y;
Tensor.print ~with_code:false ~with_grad:false `Default @@ hey;
-  [%expect
-    {|
-    ┌────────────────────────┐
-    │[0]: hey shape 1:2->0:3 │
-    │┌──────┬────────────┐   │
-    ││      │axis 1      │   │
-    │├──────┼────────────┤   │
-    ││axis 0│ 7.00  7.00 │   │
-    ││      │ 7.00  7.00 │   │
-    ││      │ 7.00  7.00 │   │
-    │└──────┴────────────┘   │
-    └────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default @@ y;
-  [%expect
-    {|
-    ┌──────────────────────────────┐
-    │[6]: +_y shape 0:3            │
-    │┌┬───────────────────────────┐│
-    │││axis 0                     ││
-    │├┼───────────────────────────┤│
-    │││ 3.90e+1  4.00e+1  4.10e+1 ││
-    │└┴───────────────────────────┘│
-    └──────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc4vZ08E.o: warning: relocation against `fmaf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc4vZ08E.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.forward_and_ctx in file "lib/train.ml", line 517, characters 37-90
+  Re-raised at Ocannl__Train.forward_and_ctx in file "lib/train.ml", lines 511-520, characters 32-17
+  Called from Ocannl__Train.forward_and_forget in file "lib/train.ml", line 524, characters 12-75
+  Called from Tutorials__Hello_world_op.(fun) in file "test/hello_world_op.ml", line 416, characters 2-40
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc4vZ08E.o: warning: relocation against `fmaf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc4vZ08E.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "Big matrix" =
Tensor.unsafe_reinitialize ();
@@ -460,51 +486,47 @@ let%expect_test "Big matrix" =
let y = TDSL.O.((hey * zero_to_twenty) + zero_to_twenty) in
Train.forward_and_forget backend ctx y;
Tensor.print ~with_code:false ~with_grad:false `Inline zero_to_twenty;
-  [%expect
-    {|
-    [0.00; 1.00; 2.00; 3.00; 4.00; 5.00; 6.00; 7.00; 8.00; 9.00; 10.00; 11.00;
-      12.00; 13.00; 14.00; 15.00; 16.00; 17.00; 18.00; 19.00; 20.00]
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default zero_to_twenty;
-  [%expect
-    {|
-    ┌──────────────────────────────────────┐
-    │[2]: 0...20 shape 0:21                │
-    │┌┬───────────────────────────────────┐│
-    │││axis 0                             ││
-    │├┼───────────────────────────────────┤│
-    │││ 0.00  1.00  ...  1.90e+1  2.00e+1 ││
-    │└┴───────────────────────────────────┘│
-    └──────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default hey;
-  [%expect
-    {|
-    ┌──────────────────────────────────────────────────┐
-    │[0]: hey shape 1:21->0:21                         │
-    │┌──────┬─────────────────────────────────────────┐│
-    ││      │axis 1                                   ││
-    │├──────┼─────────────────────────────────────────┤│
-    ││axis 0│ 5.00e-1  5.00e-1  ...  5.00e-1  5.00e-1 ││
-    ││      │ 5.00e-1  5.00e-1  ...  5.00e-1  5.00e-1 ││
-    ││      │ ...      ...      ...  ...      ...     ││
-    ││      │ 5.00e-1  5.00e-1  ...  5.00e-1  5.00e-1 ││
-    ││      │ 5.00e-1  5.00e-1  ...  5.00e-1  5.00e-1 ││
-    │└──────┴─────────────────────────────────────────┘│
-    └──────────────────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default y;
-  [%expect
-    {|
-    ┌────────────────────────────────────────────┐
-    │[5]: + shape 0:21                           │
-    │┌┬─────────────────────────────────────────┐│
-    │││axis 0                                   ││
-    │├┼─────────────────────────────────────────┤│
-    │││ 1.05e+2  1.06e+2  ...  1.24e+2  1.25e+2 ││
-    │└┴─────────────────────────────────────────┘│
-    └────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc1TU2vS.o: warning: relocation against `fmaf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc1TU2vS.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.forward_and_ctx in file "lib/train.ml", line 517, characters 37-90
+  Re-raised at Ocannl__Train.forward_and_ctx in file "lib/train.ml", lines 511-520, characters 32-17
+  Called from Ocannl__Train.forward_and_forget in file "lib/train.ml", line 524, characters 12-75
+  Called from Tutorials__Hello_world_op.(fun) in file "test/hello_world_op.ml", line 461, characters 2-40
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc1TU2vS.o: warning: relocation against `fmaf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cc1TU2vS.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "Very big tensor" =
Tensor.unsafe_reinitialize ();
@@ -525,156 +547,41 @@ let%expect_test "Very big tensor" =
let%op hoo = (hey * (1 + 1)) - 10 in
Train.forward_and_forget backend ctx hoo;
Tensor.print ~with_code:false ~with_grad:false `Default hey;
-  [%expect
-    {|
-    ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │[0]: r6x10x11x7x8x9 shape 0:6|3:7,4:8,5:9->1:10,2:11                                                                                                                                   │
-    │┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┬──────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
-    ││0 @ 0 │0 @ 4                                    │1 @ 4                                    │~~~~~ │6 @ 4                                    │7 @ 4                                    ││
-    ││      │axis 5                                   │axis 5                                   │axis 5│axis 5                                   │axis 5                                   ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││0 @ 1 │ 0.00     1.00     ...  7.00     8.00    │ 9.00     1.00e+1  ...  1.60e+1  1.70e+1 │ ...  │ 5.40e+1  5.50e+1  ...  6.10e+1  6.20e+1 │ 6.30e+1  6.40e+1  ...  7.00e+1  7.10e+1 ││
-    ││axis 2│ 5.04e+2  5.05e+2  ...  5.11e+2  5.12e+2 │ 5.13e+2  5.14e+2  ...  5.20e+2  5.21e+2 │      │ 5.58e+2  5.59e+2  ...  5.65e+2  5.66e+2 │ 5.67e+2  5.68e+2  ...  5.74e+2  5.75e+2 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 4.53e+3  4.53e+3  ...  4.54e+3  4.54e+3 │ 4.54e+3  4.54e+3  ...  4.55e+3  4.55e+3 │      │ 4.59e+3  4.59e+3  ...  4.59e+3  4.59e+3 │ 4.59e+3  4.60e+3  ...  4.60e+3  4.60e+3 ││
-    ││      │ 5.04e+3  5.04e+3  ...  5.04e+3  5.04e+3 │ 5.04e+3  5.05e+3  ...  5.05e+3  5.05e+3 │      │ 5.09e+3  5.09e+3  ...  5.10e+3  5.10e+3 │ 5.10e+3  5.10e+3  ...  5.11e+3  5.11e+3 ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││1 @ 1 │ 5.54e+3  5.54e+3  ...  5.55e+3  5.55e+3 │ 5.55e+3  5.55e+3  ...  5.56e+3  5.56e+3 │ ...  │ 5.59e+3  5.59e+3  ...  5.60e+3  5.60e+3 │ 5.60e+3  5.60e+3  ...  5.61e+3  5.61e+3 ││
-    ││axis 2│ 6.04e+3  6.04e+3  ...  6.05e+3  6.05e+3 │ 6.05e+3  6.05e+3  ...  6.06e+3  6.06e+3 │      │ 6.10e+3  6.10e+3  ...  6.10e+3  6.11e+3 │ 6.11e+3  6.11e+3  ...  6.11e+3  6.11e+3 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 1.00e+4  1.00e+4  ...  1.00e+4  1.00e+4 │ 1.00e+4  1.00e+4  ...  1.00e+4  1.00e+4 │      │ 1.01e+4  1.01e+4  ...  1.01e+4  1.01e+4 │ 1.01e+4  1.01e+4  ...  1.01e+4  1.01e+4 ││
-    ││      │ 1.05e+4  1.05e+4  ...  1.05e+4  1.05e+4 │ 1.05e+4  1.05e+4  ...  1.06e+4  1.06e+4 │      │ 1.06e+4  1.06e+4  ...  1.06e+4  1.06e+4 │ 1.06e+4  1.06e+4  ...  1.06e+4  1.06e+4 ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││~~~~~ │ ...                                     │ ...                                     │ ...  │ ...                                     │ ...                                     ││
-    ││axis 2│                                         │                                         │      │                                         │                                         ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││8 @ 1 │ 4.43e+4  4.43e+4  ...  4.43e+4  4.43e+4 │ 4.43e+4  4.43e+4  ...  4.43e+4  4.43e+4 │ ...  │ 4.44e+4  4.44e+4  ...  4.44e+4  4.44e+4 │ 4.44e+4  4.44e+4  ...  4.44e+4  4.44e+4 ││
-    ││axis 2│ 4.48e+4  4.48e+4  ...  4.48e+4  4.48e+4 │ 4.48e+4  4.48e+4  ...  4.48e+4  4.48e+4 │      │ 4.49e+4  4.49e+4  ...  4.49e+4  4.49e+4 │ 4.49e+4  4.49e+4  ...  4.49e+4  4.49e+4 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 4.88e+4  4.88e+4  ...  4.88e+4  4.88e+4 │ 4.88e+4  4.88e+4  ...  4.89e+4  4.89e+4 │      │ 4.89e+4  4.89e+4  ...  4.89e+4  4.89e+4 │ 4.89e+4  4.89e+4  ...  4.89e+4  4.89e+4 ││
-    ││      │ 4.93e+4  4.93e+4  ...  4.93e+4  4.94e+4 │ 4.94e+4  4.94e+4  ...  4.94e+4  4.94e+4 │      │ 4.94e+4  4.94e+4  ...  4.94e+4  4.94e+4 │ 4.94e+4  4.94e+4  ...  4.94e+4  4.94e+4 ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││9 @ 1 │ 4.98e+4  4.98e+4  ...  4.99e+4  4.99e+4 │ 4.99e+4  4.99e+4  ...  4.99e+4  4.99e+4 │ ...  │ 4.99e+4  4.99e+4  ...  4.99e+4  4.99e+4 │ 4.99e+4  4.99e+4  ...  4.99e+4  4.99e+4 ││
-    ││axis 2│ 5.04e+4  5.04e+4  ...  5.04e+4  5.04e+4 │ 5.04e+4  5.04e+4  ...  5.04e+4  5.04e+4 │      │ 5.04e+4  5.04e+4  ...  5.04e+4  5.04e+4 │ 5.04e+4  5.04e+4  ...  5.04e+4  5.04e+4 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 5.44e+4  5.44e+4  ...  5.44e+4  5.44e+4 │ 5.44e+4  5.44e+4  ...  5.44e+4  5.44e+4 │      │ 5.44e+4  5.44e+4  ...  5.44e+4  5.44e+4 │ 5.44e+4  5.44e+4  ...  5.45e+4  5.45e+4 ││
-    ││      │ 5.49e+4  5.49e+4  ...  5.49e+4  5.49e+4 │ 5.49e+4  5.49e+4  ...  5.49e+4  5.49e+4 │      │ 5.49e+4  5.49e+4  ...  5.49e+4  5.49e+4 │ 5.49e+4  5.50e+4  ...  5.50e+4  5.50e+4 ││
-    │└──────┴─────────────────────────────────────────┴─────────────────────────────────────────┴──────┴─────────────────────────────────────────┴─────────────────────────────────────────┘│
-    ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┬──────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
-    ││1 @ 0 │0 @ 4                                    │1 @ 4                                    │~~~~~ │6 @ 4                                    │7 @ 4                                    ││
-    ││      │axis 5                                   │axis 5                                   │axis 5│axis 5                                   │axis 5                                   ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││0 @ 1 │ 5.54e+4  5.54e+4  ...  5.54e+4  5.54e+4 │ 5.54e+4  5.54e+4  ...  5.54e+4  5.54e+4 │ ...  │ 5.54e+4  5.54e+4  ...  5.55e+4  5.55e+4 │ 5.55e+4  5.55e+4  ...  5.55e+4  5.55e+4 ││
-    ││axis 2│ 5.59e+4  5.59e+4  ...  5.59e+4  5.59e+4 │ 5.59e+4  5.59e+4  ...  5.59e+4  5.59e+4 │      │ 5.59e+4  5.59e+4  ...  5.60e+4  5.60e+4 │ 5.60e+4  5.60e+4  ...  5.60e+4  5.60e+4 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 5.99e+4  5.99e+4  ...  5.99e+4  5.99e+4 │ 5.99e+4  5.99e+4  ...  5.99e+4  5.99e+4 │      │ 6.00e+4  6.00e+4  ...  6.00e+4  6.00e+4 │ 6.00e+4  6.00e+4  ...  6.00e+4  6.00e+4 ││
-    ││      │ 6.04e+4  6.04e+4  ...  6.04e+4  6.04e+4 │ 6.04e+4  6.04e+4  ...  6.04e+4  6.04e+4 │      │ 6.05e+4  6.05e+4  ...  6.05e+4  6.05e+4 │ 6.05e+4  6.05e+4  ...  6.05e+4  6.05e+4 ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││1 @ 1 │ 6.09e+4  6.09e+4  ...  6.09e+4  6.09e+4 │ 6.09e+4  6.09e+4  ...  6.10e+4  6.10e+4 │ ...  │ 6.10e+4  6.10e+4  ...  6.10e+4  6.10e+4 │ 6.10e+4  6.10e+4  ...  6.10e+4  6.10e+4 ││
-    ││axis 2│ 6.14e+4  6.14e+4  ...  6.14e+4  6.14e+4 │ 6.14e+4  6.14e+4  ...  6.15e+4  6.15e+4 │      │ 6.15e+4  6.15e+4  ...  6.15e+4  6.15e+4 │ 6.15e+4  6.15e+4  ...  6.15e+4  6.15e+4 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 6.55e+4  6.55e+4  ...  6.55e+4  6.55e+4 │ 6.55e+4  6.55e+4  ...  6.55e+4  6.55e+4 │      │ 6.55e+4  6.55e+4  ...  6.55e+4  6.55e+4 │ 6.55e+4  6.55e+4  ...  6.55e+4  6.55e+4 ││
-    ││      │ 6.60e+4  6.60e+4  ...  6.60e+4  6.60e+4 │ 6.60e+4  6.60e+4  ...  6.60e+4  6.60e+4 │      │ 6.60e+4  6.60e+4  ...  6.60e+4  6.60e+4 │ 6.60e+4  6.60e+4  ...  6.60e+4  6.60e+4 ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││~~~~~ │ ...                                     │ ...                                     │ ...  │ ...                                     │ ...                                     ││
-    ││axis 2│                                         │                                         │      │                                         │                                         ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││8 @ 1 │ 9.97e+4  9.97e+4  ...  9.97e+4  9.98e+4 │ 9.98e+4  9.98e+4  ...  9.98e+4  9.98e+4 │ ...  │ 9.98e+4  9.98e+4  ...  9.98e+4  9.98e+4 │ 9.98e+4  9.98e+4  ...  9.98e+4  9.98e+4 ││
-    ││axis 2│ 1.00e+5  1.00e+5  ...  1.00e+5  1.00e+5 │ 1.00e+5  1.00e+5  ...  1.00e+5  1.00e+5 │      │ 1.00e+5  1.00e+5  ...  1.00e+5  1.00e+5 │ 1.00e+5  1.00e+5  ...  1.00e+5  1.00e+5 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 1.04e+5  1.04e+5  ...  1.04e+5  1.04e+5 │ 1.04e+5  1.04e+5  ...  1.04e+5  1.04e+5 │      │ 1.04e+5  1.04e+5  ...  1.04e+5  1.04e+5 │ 1.04e+5  1.04e+5  ...  1.04e+5  1.04e+5 ││
-    ││      │ 1.04e+5  1.04e+5  ...  1.04e+5  1.04e+5 │ 1.04e+5  1.04e+5  ...  1.04e+5  1.04e+5 │      │ 1.04e+5  1.04e+5  ...  1.04e+5  1.04e+5 │ 1.04e+5  1.04e+5  ...  1.04e+5  1.04e+5 ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││9 @ 1 │ 1.05e+5  1.05e+5  ...  1.05e+5  1.05e+5 │ 1.05e+5  1.05e+5  ...  1.05e+5  1.05e+5 │ ...  │ 1.05e+5  1.05e+5  ...  1.05e+5  1.05e+5 │ 1.05e+5  1.05e+5  ...  1.05e+5  1.05e+5 ││
-    ││axis 2│ 1.05e+5  1.05e+5  ...  1.05e+5  1.05e+5 │ 1.05e+5  1.05e+5  ...  1.05e+5  1.05e+5 │      │ 1.05e+5  1.05e+5  ...  1.05e+5  1.05e+5 │ 1.05e+5  1.05e+5  ...  1.05e+5  1.05e+5 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 1.09e+5  1.09e+5  ...  1.09e+5  1.09e+5 │ 1.09e+5  1.09e+5  ...  1.09e+5  1.09e+5 │      │ 1.09e+5  1.09e+5  ...  1.09e+5  1.09e+5 │ 1.09e+5  1.09e+5  ...  1.09e+5  1.09e+5 ││
-    ││      │ 1.10e+5  1.10e+5  ...  1.10e+5  1.10e+5 │ 1.10e+5  1.10e+5  ...  1.10e+5  1.10e+5 │      │ 1.10e+5  1.10e+5  ...  1.10e+5  1.10e+5 │ 1.10e+5  1.10e+5  ...  1.10e+5  1.10e+5 ││
-    │└──────┴─────────────────────────────────────────┴─────────────────────────────────────────┴──────┴─────────────────────────────────────────┴─────────────────────────────────────────┘│
-    ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │ ...                                                                                                                                                                                   │
-    ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┬──────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
-    ││4 @ 0 │0 @ 4                                    │1 @ 4                                    │~~~~~ │6 @ 4                                    │7 @ 4                                    ││
-    ││      │axis 5                                   │axis 5                                   │axis 5│axis 5                                   │axis 5                                   ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││0 @ 1 │ 2.21e+5  2.21e+5  ...  2.21e+5  2.21e+5 │ 2.21e+5  2.21e+5  ...  2.21e+5  2.21e+5 │ ...  │ 2.21e+5  2.21e+5  ...  2.21e+5  2.21e+5 │ 2.21e+5  2.21e+5  ...  2.21e+5  2.21e+5 ││
-    ││axis 2│ 2.22e+5  2.22e+5  ...  2.22e+5  2.22e+5 │ 2.22e+5  2.22e+5  ...  2.22e+5  2.22e+5 │      │ 2.22e+5  2.22e+5  ...  2.22e+5  2.22e+5 │ 2.22e+5  2.22e+5  ...  2.22e+5  2.22e+5 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 2.26e+5  2.26e+5  ...  2.26e+5  2.26e+5 │ 2.26e+5  2.26e+5  ...  2.26e+5  2.26e+5 │      │ 2.26e+5  2.26e+5  ...  2.26e+5  2.26e+5 │ 2.26e+5  2.26e+5  ...  2.26e+5  2.26e+5 ││
-    ││      │ 2.26e+5  2.26e+5  ...  2.26e+5  2.26e+5 │ 2.26e+5  2.26e+5  ...  2.26e+5  2.26e+5 │      │ 2.26e+5  2.26e+5  ...  2.26e+5  2.26e+5 │ 2.26e+5  2.26e+5  ...  2.26e+5  2.26e+5 ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││1 @ 1 │ 2.27e+5  2.27e+5  ...  2.27e+5  2.27e+5 │ 2.27e+5  2.27e+5  ...  2.27e+5  2.27e+5 │ ...  │ 2.27e+5  2.27e+5  ...  2.27e+5  2.27e+5 │ 2.27e+5  2.27e+5  ...  2.27e+5  2.27e+5 ││
-    ││axis 2│ 2.27e+5  2.27e+5  ...  2.27e+5  2.27e+5 │ 2.27e+5  2.27e+5  ...  2.27e+5  2.27e+5 │      │ 2.27e+5  2.27e+5  ...  2.27e+5  2.27e+5 │ 2.27e+5  2.27e+5  ...  2.27e+5  2.27e+5 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 2.31e+5  2.31e+5  ...  2.31e+5  2.31e+5 │ 2.31e+5  2.31e+5  ...  2.31e+5  2.31e+5 │      │ 2.31e+5  2.31e+5  ...  2.31e+5  2.31e+5 │ 2.31e+5  2.31e+5  ...  2.31e+5  2.31e+5 ││
-    ││      │ 2.32e+5  2.32e+5  ...  2.32e+5  2.32e+5 │ 2.32e+5  2.32e+5  ...  2.32e+5  2.32e+5 │      │ 2.32e+5  2.32e+5  ...  2.32e+5  2.32e+5 │ 2.32e+5  2.32e+5  ...  2.32e+5  2.32e+5 ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││~~~~~ │ ...                                     │ ...                                     │ ...  │ ...                                     │ ...                                     ││
-    ││axis 2│                                         │                                         │      │                                         │                                         ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││8 @ 1 │ 2.66e+5  2.66e+5  ...  2.66e+5  2.66e+5 │ 2.66e+5  2.66e+5  ...  2.66e+5  2.66e+5 │ ...  │ 2.66e+5  2.66e+5  ...  2.66e+5  2.66e+5 │ 2.66e+5  2.66e+5  ...  2.66e+5  2.66e+5 ││
-    ││axis 2│ 2.66e+5  2.66e+5  ...  2.66e+5  2.66e+5 │ 2.66e+5  2.66e+5  ...  2.66e+5  2.66e+5 │      │ 2.66e+5  2.66e+5  ...  2.66e+5  2.66e+5 │ 2.66e+5  2.66e+5  ...  2.66e+5  2.66e+5 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 2.70e+5  2.70e+5  ...  2.70e+5  2.70e+5 │ 2.70e+5  2.70e+5  ...  2.70e+5  2.70e+5 │      │ 2.70e+5  2.70e+5  ...  2.70e+5  2.70e+5 │ 2.70e+5  2.70e+5  ...  2.70e+5  2.70e+5 ││
-    ││      │ 2.71e+5  2.71e+5  ...  2.71e+5  2.71e+5 │ 2.71e+5  2.71e+5  ...  2.71e+5  2.71e+5 │      │ 2.71e+5  2.71e+5  ...  2.71e+5  2.71e+5 │ 2.71e+5  2.71e+5  ...  2.71e+5  2.71e+5 ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││9 @ 1 │ 2.71e+5  2.71e+5  ...  2.71e+5  2.71e+5 │ 2.71e+5  2.71e+5  ...  2.71e+5  2.71e+5 │ ...  │ 2.71e+5  2.71e+5  ...  2.71e+5  2.71e+5 │ 2.71e+5  2.71e+5  ...  2.71e+5  2.71e+5 ││
-    ││axis 2│ 2.72e+5  2.72e+5  ...  2.72e+5  2.72e+5 │ 2.72e+5  2.72e+5  ...  2.72e+5  2.72e+5 │      │ 2.72e+5  2.72e+5  ...  2.72e+5  2.72e+5 │ 2.72e+5  2.72e+5  ...  2.72e+5  2.72e+5 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 2.76e+5  2.76e+5  ...  2.76e+5  2.76e+5 │ 2.76e+5  2.76e+5  ...  2.76e+5  2.76e+5 │      │ 2.76e+5  2.76e+5  ...  2.76e+5  2.76e+5 │ 2.76e+5  2.76e+5  ...  2.76e+5  2.76e+5 ││
-    ││      │ 2.76e+5  2.76e+5  ...  2.76e+5  2.76e+5 │ 2.76e+5  2.76e+5  ...  2.76e+5  2.76e+5 │      │ 2.76e+5  2.76e+5  ...  2.76e+5  2.76e+5 │ 2.76e+5  2.76e+5  ...  2.76e+5  2.76e+5 ││
-    │└──────┴─────────────────────────────────────────┴─────────────────────────────────────────┴──────┴─────────────────────────────────────────┴─────────────────────────────────────────┘│
-    ├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
-    │┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┬──────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
-    ││5 @ 0 │0 @ 4                                    │1 @ 4                                    │~~~~~ │6 @ 4                                    │7 @ 4                                    ││
-    ││      │axis 5                                   │axis 5                                   │axis 5│axis 5                                   │axis 5                                   ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││0 @ 1 │ 2.77e+5  2.77e+5  ...  2.77e+5  2.77e+5 │ 2.77e+5  2.77e+5  ...  2.77e+5  2.77e+5 │ ...  │ 2.77e+5  2.77e+5  ...  2.77e+5  2.77e+5 │ 2.77e+5  2.77e+5  ...  2.77e+5  2.77e+5 ││
-    ││axis 2│ 2.77e+5  2.77e+5  ...  2.77e+5  2.77e+5 │ 2.77e+5  2.77e+5  ...  2.77e+5  2.77e+5 │      │ 2.77e+5  2.77e+5  ...  2.77e+5  2.77e+5 │ 2.77e+5  2.77e+5  ...  2.77e+5  2.77e+5 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 2.81e+5  2.81e+5  ...  2.81e+5  2.81e+5 │ 2.81e+5  2.81e+5  ...  2.81e+5  2.81e+5 │      │ 2.81e+5  2.81e+5  ...  2.81e+5  2.81e+5 │ 2.81e+5  2.81e+5  ...  2.81e+5  2.81e+5 ││
-    ││      │ 2.82e+5  2.82e+5  ...  2.82e+5  2.82e+5 │ 2.82e+5  2.82e+5  ...  2.82e+5  2.82e+5 │      │ 2.82e+5  2.82e+5  ...  2.82e+5  2.82e+5 │ 2.82e+5  2.82e+5  ...  2.82e+5  2.82e+5 ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││1 @ 1 │ 2.82e+5  2.82e+5  ...  2.82e+5  2.82e+5 │ 2.82e+5  2.82e+5  ...  2.82e+5  2.82e+5 │ ...  │ 2.82e+5  2.82e+5  ...  2.82e+5  2.82e+5 │ 2.82e+5  2.82e+5  ...  2.82e+5  2.82e+5 ││
-    ││axis 2│ 2.83e+5  2.83e+5  ...  2.83e+5  2.83e+5 │ 2.83e+5  2.83e+5  ...  2.83e+5  2.83e+5 │      │ 2.83e+5  2.83e+5  ...  2.83e+5  2.83e+5 │ 2.83e+5  2.83e+5  ...  2.83e+5  2.83e+5 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 2.87e+5  2.87e+5  ...  2.87e+5  2.87e+5 │ 2.87e+5  2.87e+5  ...  2.87e+5  2.87e+5 │      │ 2.87e+5  2.87e+5  ...  2.87e+5  2.87e+5 │ 2.87e+5  2.87e+5  ...  2.87e+5  2.87e+5 ││
-    ││      │ 2.87e+5  2.87e+5  ...  2.87e+5  2.87e+5 │ 2.87e+5  2.87e+5  ...  2.87e+5  2.87e+5 │      │ 2.87e+5  2.87e+5  ...  2.87e+5  2.87e+5 │ 2.87e+5  2.87e+5  ...  2.87e+5  2.87e+5 ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││~~~~~ │ ...                                     │ ...                                     │ ...  │ ...                                     │ ...                                     ││
-    ││axis 2│                                         │                                         │      │                                         │                                         ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││8 @ 1 │ 3.21e+5  3.21e+5  ...  3.21e+5  3.21e+5 │ 3.21e+5  3.21e+5  ...  3.21e+5  3.21e+5 │ ...  │ 3.21e+5  3.21e+5  ...  3.21e+5  3.21e+5 │ 3.21e+5  3.21e+5  ...  3.21e+5  3.21e+5 ││
-    ││axis 2│ 3.22e+5  3.22e+5  ...  3.22e+5  3.22e+5 │ 3.22e+5  3.22e+5  ...  3.22e+5  3.22e+5 │      │ 3.22e+5  3.22e+5  ...  3.22e+5  3.22e+5 │ 3.22e+5  3.22e+5  ...  3.22e+5  3.22e+5 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 3.26e+5  3.26e+5  ...  3.26e+5  3.26e+5 │ 3.26e+5  3.26e+5  ...  3.26e+5  3.26e+5 │      │ 3.26e+5  3.26e+5  ...  3.26e+5  3.26e+5 │ 3.26e+5  3.26e+5  ...  3.26e+5  3.26e+5 ││
-    ││      │ 3.26e+5  3.26e+5  ...  3.26e+5  3.26e+5 │ 3.26e+5  3.26e+5  ...  3.26e+5  3.26e+5 │      │ 3.26e+5  3.26e+5  ...  3.26e+5  3.26e+5 │ 3.26e+5  3.26e+5  ...  3.26e+5  3.26e+5 ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││9 @ 1 │ 3.27e+5  3.27e+5  ...  3.27e+5  3.27e+5 │ 3.27e+5  3.27e+5  ...  3.27e+5  3.27e+5 │ ...  │ 3.27e+5  3.27e+5  ...  3.27e+5  3.27e+5 │ 3.27e+5  3.27e+5  ...  3.27e+5  3.27e+5 ││
-    ││axis 2│ 3.27e+5  3.27e+5  ...  3.27e+5  3.27e+5 │ 3.27e+5  3.27e+5  ...  3.27e+5  3.27e+5 │      │ 3.27e+5  3.27e+5  ...  3.27e+5  3.27e+5 │ 3.27e+5  3.27e+5  ...  3.27e+5  3.27e+5 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 3.31e+5  3.31e+5  ...  3.31e+5  3.31e+5 │ 3.31e+5  3.31e+5  ...  3.31e+5  3.31e+5 │      │ 3.31e+5  3.31e+5  ...  3.31e+5  3.31e+5 │ 3.31e+5  3.31e+5  ...  3.31e+5  3.31e+5 ││
-    ││      │ 3.32e+5  3.32e+5  ...  3.32e+5  3.32e+5 │ 3.32e+5  3.32e+5  ...  3.32e+5  3.32e+5 │      │ 3.32e+5  3.32e+5  ...  3.32e+5  3.32e+5 │ 3.32e+5  3.32e+5  ...  3.32e+5  3.32e+5 ││
-    │└──────┴─────────────────────────────────────────┴─────────────────────────────────────────┴──────┴─────────────────────────────────────────┴─────────────────────────────────────────┘│
-    └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default hoo;
(* Disable line wrapping for viewing the output. In VSCode: `View: Toggle Word Wrap`. *)
-  [%expect
-    {|
-    ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │[6]: -_hoo shape 0:6|1:10,2:11                                                                                                                                                         │
-    │┌──────┬─────────────────────────────────────────┬─────────────────────────────────────────┬──────┬─────────────────────────────────────────┬─────────────────────────────────────────┐│
-    ││      │0 @ 0                                    │1 @ 0                                    │~~~~~ │4 @ 0                                    │5 @ 0                                    ││
-    ││      │axis 2                                   │axis 2                                   │axis 2│axis 2                                   │axis 2                                   ││
-    │├──────┼─────────────────────────────────────────┼─────────────────────────────────────────┼──────┼─────────────────────────────────────────┼─────────────────────────────────────────┤│
-    ││axis 1│ 2.53e+5  7.61e+5  ...  4.82e+6  5.33e+6 │ 5.61e+7  5.66e+7  ...  6.07e+7  6.12e+7 │ ...  │ 2.23e+8  2.24e+8  ...  2.28e+8  2.28e+8 │ 2.79e+8  2.80e+8  ...  2.84e+8  2.84e+8 ││
-    ││      │ 5.84e+6  6.34e+6  ...  1.04e+7  1.09e+7 │ 6.17e+7  6.22e+7  ...  6.62e+7  6.68e+7 │      │ 2.29e+8  2.29e+8  ...  2.33e+8  2.34e+8 │ 2.85e+8  2.85e+8  ...  2.89e+8  2.90e+8 ││
-    ││      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     │      │ ...      ...      ...  ...      ...     │ ...      ...      ...  ...      ...     ││
-    ││      │ 4.49e+7  4.54e+7  ...  4.95e+7  5.00e+7 │ 1.00e+8  1.01e+8  ...  1.05e+8  1.05e+8 │      │ 2.68e+8  2.69e+8  ...  2.73e+8  2.73e+8 │ 3.24e+8  3.24e+8  ...  3.28e+8  3.29e+8 ││
-    ││      │ 5.05e+7  5.10e+7  ...  5.51e+7  5.56e+7 │ 1.06e+8  1.06e+8  ...  1.11e+8  1.11e+8 │      │ 2.74e+8  2.74e+8  ...  2.78e+8  2.79e+8 │ 3.29e+8  3.30e+8  ...  3.34e+8  3.35e+8 ││
-    │└──────┴─────────────────────────────────────────┴─────────────────────────────────────────┴──────┴─────────────────────────────────────────┴─────────────────────────────────────────┘│
-    └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccIwIVVS.o: warning: relocation against `fmaf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccIwIVVS.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.forward_and_ctx in file "lib/train.ml", line 517, characters 37-90
+  Re-raised at Ocannl__Train.forward_and_ctx in file "lib/train.ml", lines 511-520, characters 32-17
+  Called from Ocannl__Train.forward_and_forget in file "lib/train.ml", line 524, characters 12-75
+  Called from Tutorials__Hello_world_op.(fun) in file "test/hello_world_op.ml", line 526, characters 2-42
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccIwIVVS.o: warning: relocation against `fmaf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccIwIVVS.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]
File "test/einsum_trivia.ml", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/einsum_trivia.ml _build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/einsum_trivia.ml.corrected
diff --git a/_build/default/test/einsum_trivia.ml b/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/einsum_trivia.ml.corrected
index 93f646c..e2e9b00 100644
--- a/_build/default/test/einsum_trivia.ml
+++ b/_build/.sandbox/5bae3577658333271b7a07d5d686a799/default/test/einsum_trivia.ml.corrected
@@ -612,93 +612,48 @@ let%expect_test "einsum matrix/inner+outer products" =
let%op f = a *+ "a|i->h; b|h->o => i->o" b in
Train.forward_and_forget backend ctx f;
Tensor.print ~with_code:false ~with_grad:false `Default @@ a2;
-  [%expect
-    {|
-    ┌────────────────────────────────────────────────────────────────┐
-    │[2]: ;=>_a2 shape 0:2|2:3->1:4                                  │
-    │┌──────┬───────────────────────────┬───────────────────────────┐│
-    ││      │0 @ 0                      │1 @ 0                      ││
-    ││      │axis 2                     │axis 2                     ││
-    │├──────┼───────────────────────────┼───────────────────────────┤│
-    ││axis 1│ 0.00     1.00     4.00    │ 1.44e+2  1.69e+2  1.96e+2 ││
-    ││      │ 9.00     1.60e+1  2.50e+1 │ 2.25e+2  2.56e+2  2.89e+2 ││
-    ││      │ 3.60e+1  4.90e+1  6.40e+1 │ 3.24e+2  3.61e+2  4.00e+2 ││
-    ││      │ 8.10e+1  1.00e+2  1.21e+2 │ 4.41e+2  4.84e+2  5.29e+2 ││
-    │└──────┴───────────────────────────┴───────────────────────────┘│
-    └────────────────────────────────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default @@ c;
-  [%expect
-    {|
-    ┌────────────────────────────────────────────────────────────────┐
-    │[3]: ;=>_c shape 0:2|2:3->1:5                                   │
-    │┌──────┬───────────────────────────┬───────────────────────────┐│
-    ││      │0 @ 0                      │1 @ 0                      ││
-    ││      │axis 2                     │axis 2                     ││
-    │├──────┼───────────────────────────┼───────────────────────────┤│
-    ││axis 1│ 4.20e+1  4.80e+1  5.40e+1 │ 1.43e+3  1.52e+3  1.60e+3 ││
-    ││      │ 1.14e+2  1.36e+2  1.58e+2 │ 1.69e+3  1.80e+3  1.90e+3 ││
-    ││      │ 1.86e+2  2.24e+2  2.62e+2 │ 1.96e+3  2.08e+3  2.19e+3 ││
-    ││      │ 2.58e+2  3.12e+2  3.66e+2 │ 2.22e+3  2.36e+3  2.49e+3 ││
-    ││      │ 3.30e+2  4.00e+2  4.70e+2 │ 2.49e+3  2.64e+3  2.79e+3 ││
-    │└──────┴───────────────────────────┴───────────────────────────┘│
-    └────────────────────────────────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default @@ d;
-  [%expect
-    {|
-    ┌────────────────────────────────────────────────────────────────┐
-    │[4]: ;=>_d shape 0:2,1:2|3:3->2:5                               │
-    │┌──────┬───────────────────────────┬───────────────────────────┐│
-    ││      │0 @ 1                      │1 @ 1                      ││
-    ││      │axis 3                     │axis 3                     ││
-    │├──────┼───────────────────────────┼───────────────────────────┤│
-    ││0 @ 0 │ 4.20e+1  4.80e+1  5.40e+1 │ 4.02e+2  4.88e+2  5.74e+2 ││
-    ││axis 2│ 1.14e+2  1.36e+2  1.58e+2 │ 4.74e+2  5.76e+2  6.78e+2 ││
-    ││      │ 1.86e+2  2.24e+2  2.62e+2 │ 5.46e+2  6.64e+2  7.82e+2 ││
-    ││      │ 2.58e+2  3.12e+2  3.66e+2 │ 6.18e+2  7.52e+2  8.86e+2 ││
-    ││      │ 3.30e+2  4.00e+2  4.70e+2 │ 6.90e+2  8.40e+2  9.90e+2 ││
-    │├──────┼───────────────────────────┼───────────────────────────┤│
-    ││1 @ 0 │ 1.14e+2  1.20e+2  1.26e+2 │ 1.43e+3  1.52e+3  1.60e+3 ││
-    ││axis 2│ 3.78e+2  4.00e+2  4.22e+2 │ 1.69e+3  1.80e+3  1.90e+3 ││
-    ││      │ 6.42e+2  6.80e+2  7.18e+2 │ 1.96e+3  2.08e+3  2.19e+3 ││
-    ││      │ 9.06e+2  9.60e+2  1.01e+3 │ 2.22e+3  2.36e+3  2.49e+3 ││
-    ││      │ 1.17e+3  1.24e+3  1.31e+3 │ 2.49e+3  2.64e+3  2.79e+3 ││
-    │└──────┴───────────────────────────┴───────────────────────────┘│
-    └────────────────────────────────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default @@ e;
-  [%expect
-    {|
-    ┌────────────────────────────────────┐
-    │[5]: ;=>_e shape 1:3->0:5           │
-    │┌──────┬───────────────────────────┐│
-    ││      │axis 1                     ││
-    │├──────┼───────────────────────────┤│
-    ││axis 0│ 1.47e+3  1.56e+3  1.66e+3 ││
-    ││      │ 1.81e+3  1.93e+3  2.06e+3 ││
-    ││      │ 2.14e+3  2.30e+3  2.46e+3 ││
-    ││      │ 2.48e+3  2.67e+3  2.86e+3 ││
-    ││      │ 2.82e+3  3.04e+3  3.26e+3 ││
-    │└──────┴───────────────────────────┘│
-    └────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default @@ f;
-  [%expect
-    {|
-    ┌────────────────────────────────────┐
-    │[6]: ;=>_f shape 1:3->0:5           │
-    │┌──────┬───────────────────────────┐│
-    ││      │axis 1                     ││
-    │├──────┼───────────────────────────┤│
-    ││axis 0│ 1.99e+3  2.17e+3  2.36e+3 ││
-    ││      │ 2.66e+3  2.91e+3  3.16e+3 ││
-    ││      │ 3.33e+3  3.64e+3  3.96e+3 ││
-    ││      │ 4.00e+3  4.38e+3  4.76e+3 ││
-    ││      │ 4.68e+3  5.12e+3  5.56e+3 ││
-    │└──────┴───────────────────────────┘│
-    └────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccfaPgt8.o: warning: relocation against `fmaf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccfaPgt8.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.forward_and_ctx in file "lib/train.ml", line 517, characters 37-90
+  Re-raised at Ocannl__Train.forward_and_ctx in file "lib/train.ml", lines 511-520, characters 32-17
+  Called from Tutorials__Einsum_trivia.(fun) in file "test/einsum_trivia.ml", line 607, characters 12-47
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccfaPgt8.o: warning: relocation against `fmaf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccfaPgt8.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "einsum1 broadcast or sum out prefix axes" =
Tensor.unsafe_reinitialize ();
@@ -1132,101 +1087,56 @@ let%expect_test "einsum broadcast or sum out prefix axes" =
let%op c = a *+ "...|i->...; ...|...->i => ...|i" b in
Train.forward_and_forget backend ctx c;
Tensor.print ~with_code:false ~with_grad:false `Default @@ a;
-  [%expect
-    {|
-    ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │[0]: r3x2x4 shape 0:3|2:4->1:2                                                                             │
-    │┌──────┬────────────────────────┬────────────────────────────────────┬────────────────────────────────────┐│
-    ││      │0 @ 0                   │1 @ 0                               │2 @ 0                               ││
-    ││      │axis 2                  │axis 2                              │axis 2                              ││
-    │├──────┼────────────────────────┼────────────────────────────────────┼────────────────────────────────────┤│
-    ││axis 1│ 0.00  1.00  2.00  3.00 │ 8.00     9.00     1.00e+1  1.10e+1 │ 1.60e+1  1.70e+1  1.80e+1  1.90e+1 ││
-    ││      │ 4.00  5.00  6.00  7.00 │ 1.20e+1  1.30e+1  1.40e+1  1.50e+1 │ 2.00e+1  2.10e+1  2.20e+1  2.30e+1 ││
-    │└──────┴────────────────────────┴────────────────────────────────────┴────────────────────────────────────┘│
-    └───────────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default @@ b;
-  [%expect
-    {|
-    ┌────────────────────────────────┐
-    │[1]: r3x4x1 shape 0:3|2:1->1:4  │
-    │┌──────┬──────┬──────┬─────────┐│
-    ││      │0 @ 0 │1 @ 0 │2 @ 0    ││
-    ││      │axis 2│axis 2│axis 2   ││
-    │├──────┼──────┼──────┼─────────┤│
-    ││axis 1│ 0.00 │ 4.00 │ 8.00    ││
-    ││      │ 1.00 │ 5.00 │ 9.00    ││
-    ││      │ 2.00 │ 6.00 │ 1.00e+1 ││
-    ││      │ 3.00 │ 7.00 │ 1.10e+1 ││
-    │└──────┴──────┴──────┴─────────┘│
-    └────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default @@ c;
-  [%expect
-    {|
-    ┌─────────────────────────────────────────────┐
-    │[2]: ;=>_c shape 0:3|1:4                     │
-    │┌──────┬────────────────────────────────────┐│
-    ││      │axis 1                              ││
-    │├──────┼────────────────────────────────────┤│
-    ││axis 0│ 0.00     6.00     1.60e+1  3.00e+1 ││
-    ││      │ 8.00e+1  1.10e+2  1.44e+2  1.82e+2 ││
-    ││      │ 2.88e+2  3.42e+2  4.00e+2  4.62e+2 ││
-    │└──────┴────────────────────────────────────┘│
-    └─────────────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
(* Broadcast with a shift. *)
let d = TDSL.range_of_shape ~input_dims:[ 2 ] ~output_dims:[ 3 ] () in
let e = TDSL.range_of_shape ~input_dims:[ 4 ] ~output_dims:[ 3 ] () in
let%op f = d *+ "i->...;j->... => ...ij" e in
Train.forward_and_forget backend ctx f;
Tensor.print ~with_cde:false ~with_grad:false `Default @@ d;
-  [%expect
-    {|
-    ┌─────────────────────────┐
-    │[3]: r3x2 shape 1:2->0:3 │
-    │┌──────┬────────────┐    │
-    ││      │axis 1      │    │
-    │├──────┼────────────┤    │
-    ││axis 0│ 0.00  1.00 │    │
-    ││      │ 2.00  3.00 │    │
-    ││      │ 4.00  5.00 │    │
-    │└──────┴────────────┘    │
-    └─────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default @@ e;
-  [%expect
-    {|
-    ┌───────────────────────────────────────┐
-    │[4]: r3x4 shape 1:4->0:3               │
-    │┌──────┬──────────────────────────────┐│
-    ││      │axis 1                        ││
-    │├──────┼──────────────────────────────┤│
-    ││axis 0│ 0.00  1.00  2.00     3.00    ││
-    ││      │ 4.00  5.00  6.00     7.00    ││
-    ││      │ 8.00  9.00  1.00e+1  1.10e+1 ││
-    │└──────┴──────────────────────────────┘│
-    └───────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default @@ f;
-  [%expect
-    {|
-    ┌─────────────────────────────────────────────┐
-    │[5]: ;=>_f shape 0:3,1:2,2:4                 │
-    │┌──────┬────────────────────────────────────┐│
-    ││      │axis 2                              ││
-    │├──────┼────────────────────────────────────┤│
-    ││0 @ 0 │ 0.00  0.00  0.00  0.00             ││
-    ││axis 1│ 0.00  1.00  2.00  3.00             ││
-    │├──────┼────────────────────────────────────┤│
-    ││1 @ 0 │ 8.00     1.00e+1  1.20e+1  1.40e+1 ││
-    ││axis 1│ 1.20e+1  1.50e+1  1.80e+1  2.10e+1 ││
-    │├──────┼────────────────────────────────────┤│
-    ││2 @ 0 │ 3.20e+1  3.60e+1  4.00e+1  4.40e+1 ││
-    ││axis 1│ 4.00e+1  4.50e+1  5.00e+1  5.50e+1 ││
-    │└──────┴────────────────────────────────────┘│
-    └─────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cco61l9p.o: warning: relocation against `fmaf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cco61l9p.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.forward_and_ctx in file "lib/train.ml", line 517, characters 37-90
+  Re-raised at Ocannl__Train.forward_and_ctx in file "lib/train.ml", lines 511-520, characters 32-17
+  Called from Ocannl__Train.forward_and_forget in file "lib/train.ml", line 524, characters 12-75
+  Called from Tutorials__Einsum_trivia.(fun) in file "test/einsum_trivia.ml", line 1133, characters 2-40
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cco61l9p.o: warning: relocation against `fmaf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/cco61l9p.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "einsum1 fixed dim axis" =
Tensor.unsafe_reinitialize ();
@@ -1633,71 +1543,45 @@ let%expect_test "einsum with a leftmost input axis preserved as output axis" =
let%op c = a *+ "...|i->1; ...|j...->i => ...|ij" b in
Train.forward_and_forget backend ctx c;
Tensor.print ~with_code:false ~with_grad:false `Default @@ a;
-  [%expect
-    {|
-    ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────┐
-    │[0]: r3x2x4_a shape 0:3|2:4->1:2                                                                           │
-    │┌──────┬────────────────────────┬────────────────────────────────────┬────────────────────────────────────┐│
-    ││      │0 @ 0                   │1 @ 0                               │2 @ 0                               ││
-    ││      │axis 2                  │axis 2                              │axis 2                              ││
-    │├──────┼────────────────────────┼────────────────────────────────────┼────────────────────────────────────┤│
-    ││axis 1│ 0.00  1.00  2.00  3.00 │ 8.00     9.00     1.00e+1  1.10e+1 │ 1.60e+1  1.70e+1  1.80e+1  1.90e+1 ││
-    ││      │ 4.00  5.00  6.00  7.00 │ 1.20e+1  1.30e+1  1.40e+1  1.50e+1 │ 2.00e+1  2.10e+1  2.20e+1  2.30e+1 ││
-    │└──────┴────────────────────────┴────────────────────────────────────┴────────────────────────────────────┘│
-    └───────────────────────────────────────────────────────────────────────────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default @@ b;
-  [%expect
-    {|
-    ┌────────────────────────────────────────────────────────────────┐
-    │[1]: r3x4x2x3_b shape 0:3|2:2,3:3->1:4                          │
-    │┌──────┬───────────────────────────┬───────────────────────────┐│
-    ││0 @ 0 │0 @ 2                      │1 @ 2                      ││
-    ││      │axis 3                     │axis 3                     ││
-    │├──────┼───────────────────────────┼───────────────────────────┤│
-    ││axis 1│ 0.00     1.00     2.00    │ 3.00     4.00     5.00    ││
-    ││      │ 6.00     7.00     8.00    │ 9.00     1.00e+1  1.10e+1 ││
-    ││      │ 1.20e+1  1.30e+1  1.40e+1 │ 1.50e+1  1.60e+1  1.70e+1 ││
-    ││      │ 1.80e+1  1.90e+1  2.00e+1 │ 2.10e+1  2.20e+1  2.30e+1 ││
-    │└──────┴───────────────────────────┴───────────────────────────┘│
-    ├────────────────────────────────────────────────────────────────┤
-    │┌──────┬───────────────────────────┬───────────────────────────┐│
-    ││1 @ 0 │0 @ 2                      │1 @ 2                      ││
-    ││      │axis 3                     │axis 3                     ││
-    │├──────┼───────────────────────────┼───────────────────────────┤│
-    ││axis 1│ 2.40e+1  2.50e+1  2.60e+1 │ 2.70e+1  2.80e+1  2.90e+1 ││
-    ││      │ 3.00e+1  3.10e+1  3.20e+1 │ 3.30e+1  3.40e+1  3.50e+1 ││
-    ││      │ 3.60e+1  3.70e+1  3.80e+1 │ 3.90e+1  4.00e+1  4.10e+1 ││
-    ││      │ 4.20e+1  4.30e+1  4.40e+1 │ 4.50e+1  4.60e+1  4.70e+1 ││
-    │└──────┴───────────────────────────┴───────────────────────────┘│
-    ├────────────────────────────────────────────────────────────────┤
-    │┌──────┬───────────────────────────┬───────────────────────────┐│
-    ││2 @ 0 │0 @ 2                      │1 @ 2                      ││
-    ││      │axis 3                     │axis 3                     ││
-    │├──────┼───────────────────────────┼───────────────────────────┤│
-    ││axis 1│ 4.80e+1  4.90e+1  5.00e+1 │ 5.10e+1  5.20e+1  5.30e+1 ││
-    ││      │ 5.40e+1  5.50e+1  5.60e+1 │ 5.70e+1  5.80e+1  5.90e+1 ││
-    ││      │ 6.00e+1  6.10e+1  6.20e+1 │ 6.30e+1  6.40e+1  6.50e+1 ││
-    ││      │ 6.60e+1  6.70e+1  6.80e+1 │ 6.90e+1  7.00e+1  7.10e+1 ││
-    │└──────┴───────────────────────────┴───────────────────────────┘│
-    └────────────────────────────────────────────────────────────────┘
-    |}];
+  [%expect.unreachable];
Tensor.print ~with_code:false ~with_grad:false `Default @@ c;
-  [%expect
-    {|
-    ┌─────────────────────────────────────────────────────────────────┐
-    │[2]: ;=>_c shape 0:3|1:4,2:2                                     │
-    │┌──────┬──────────────────┬──────────────────┬──────────────────┐│
-    ││      │0 @ 0             │1 @ 0             │2 @ 0             ││
-    ││      │axis 2            │axis 2            │axis 2            ││
-    │├──────┼──────────────────┼──────────────────┼──────────────────┤│
-    ││axis 1│ 1.20e+1  4.80e+1 │ 9.00e+2  1.00e+3 │ 2.94e+3  3.12e+3 ││
-    ││      │ 1.05e+2  1.50e+2 │ 1.20e+3  1.32e+3 │ 3.46e+3  3.65e+3 ││
-    ││      │ 2.34e+2  2.88e+2 │ 1.55e+3  1.68e+3 │ 4.02e+3  4.22e+3 ││
-    ││      │ 3.99e+2  4.62e+2 │ 1.93e+3  2.07e+3 │ 4.62e+3  4.83e+3 ││
-    │└──────┴──────────────────┴──────────────────┴──────────────────┘│
-    └─────────────────────────────────────────────────────────────────┘
-    |}]
+  [%expect.unreachable]
+[@@expect.uncaught_exn {|
+  (* CR expect_test_collector: This test expectation appears to contain a backtrace.
+     This is strongly discouraged as backtraces are fragile.
+     Please change this test to not include a backtrace. *)
+  (Invalid_argument
+     "Cc_backend.c_compile_and_load: compilation failed with errors:\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccYvluVF.o: warning: relocation against `fmaf' in read-only section `.text'\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccYvluVF.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC\
+    \n/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value\
+    \ncollect2: error: ld returned 1 exit status\
+    \n")
+  Raised at Stdlib.invalid_arg in file "stdlib.ml", line 30, characters 20-45
+  Called from Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", line 83, characters 4-22
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 77-83, characters 18-23
+  Re-raised at Arrayjit__Cc_backend.c_compile_and_load in file "arrayjit/lib/cc_backend.ml", lines 60-88, characters 35-8
+  Called from Arrayjit__Cc_backend.compile in file "arrayjit/lib/cc_backend.ml", line 120, characters 15-56
+  Called from Arrayjit__Backends.Add_device.compile in file "arrayjit/lib/backends.ml", line 246, characters 15-45
+  Called from Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 29-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", line 350, characters 4-59
+  Re-raised at Arrayjit__Backends.Raise_backend.compile in file "arrayjit/lib/backends.ml", lines 346-354, characters 26-99
+  Called from Ocannl__Train.forward_and_ctx in file "lib/train.ml", line 517, characters 37-90
+  Re-raised at Ocannl__Train.forward_and_ctx in file "lib/train.ml", lines 511-520, characters 32-17
+  Called from Ocannl__Train.forward_and_forget in file "lib/train.ml", line 524, characters 12-75
+  Called from Tutorials__Einsum_trivia.(fun) in file "test/einsum_trivia.ml", line 1634, characters 2-40
+  Called from Ppx_expect_runtime__Test_block.Configured.dump_backtrace in file "runtime/test_block.ml", line 142, characters 10-28
+
+  Trailing output
+  ---------------
+  Cc_backend.c_compile_and_load: compilation failed with errors:
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccYvluVF.o: warning: relocation against `fmaf' in read-only section `.text'
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: /tmp/build_dc5472_dune/ccYvluVF.o: relocation R_X86_64_PC32 against undefined symbol `fmaf' can not be used when making a shared object; recompile with -fPIC
+  /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld: final link failed: bad value
+  collect2: error: ld returned 1 exit status
+  |}]


let%expect_test "einsum permuting two leftmost input axes as output axes" =
Tensor.unsafe_reinitialize ();
"/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1
2025-03-20 21:24.22: Job failed: Failed: Build failed