Hi,
This regression is caused by a latent bug in the loop-interchange. I've confirmed https://github.com/llvm/llvm-project/pull/140709 fixes the bug. We'll wait for merge of https://github.com/llvm/llvm-project/pull/140709. You don't need to investigate this failure.
Thanks.
Dear contributor,
Our automatic CI has detected problems related to your patch(es). Please find some details below.
In tcwg_flang_test/main-aarch64-Ofast-sve_vla, after: | commit llvmorg-21-init-12714-gd36028120a6e | Author: Sebastian Pop spop@nvidia.com | Date: Wed May 21 08:27:39 2025 -0500 | | [flang] add -floop-interchange and enable it with opt levels (#140182) | | Enable the use of -floop-interchange from the flang driver. | Enable in flang LLVM's loop interchange at levels -O2, -O3, -Ofast, and -Os.
Produces 1 regression: | | regressions.sum: | Running test-suite:Fujitsu/Fortran/0347 ... | FAIL: test-suite :: Fujitsu/Fortran/0347/Fujitsu-Fortran-0347_0240.test | # "FAIL" means : the execution of the compiled binary failed / output of the binary differs from the expected one
Used configuration :
- Toolchain : cmake -G Ninja ../llvm/llvm "-DLLVM_ENABLE_PROJECTS=clang;lld;flang;openmp;clang-tools-extra" -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=True -DCMAKE_INSTALL_PREFIX=../llvm-install "-DLLVM_TARGETS_TO_BUILD=AArch64" -DCLANG_DEFAULT_LINKER=lld
- Testsuite : export LD_LIBRARY_PATH=$\WORKSPACE/llvm-install/lib/aarch64-unknown-linux-gnu${LD_LIBRARY_PATH:+:$\LD_LIBRARY_PATH}
cmake -GNinja -DCMAKE_C_COMPILER="$\WORKSPACE/llvm-install/bin/clang" -DCMAKE_CXX_COMPILER="$\WORKSPACE/llvm-install/bin/clang++" -DCMAKE_Fortran_COMPILER="$\WORKSPACE/llvm-install/bin/flang-new" -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_FLAGS= -DCMAKE_CXX_FLAGS= -DCMAKE_Fortran_FLAGS= -DCMAKE_C_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=scalable -mllvm -scalable-vectorization=preferred -mllvm -treat-scalable-fixed-error-as-warning=false -DNDEBUG" -DCMAKE_CXX_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=scalable -mllvm -scalable-vectorization=preferred -mllvm -treat-scalable-fixed-error-as-warning=false -DNDEBUG" -DCMAKE_Fortran_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=scalable -mllvm -scalable-vectorization=preferred -mllvm -treat-scalable-fixed-error-as-warning=false -DNDEBUG" -DTEST_SUITE_FORTRAN=ON -DTEST_SUITE_SUBDIRS=Fujitsu "$\WORKSPACE/test/test-suite"
We track this bug report under https://linaro.atlassian.net/browse/LLVM-1687. Please let us know if you have a fix.
If you have any questions regarding this report, please ask on linaro-toolchain@lists.linaro.org mailing list.
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The information below contains the details of the failures, and the ways to reproduce a debug environment:
You can find the failure logs in *.log.1.xz files in
The full lists of regressions and improvements as well as configure and make commands are in
The list of [ignored] baseline and flaky failures are in
Fujitsu testsuite : https://github.com/fujitsu/compiler-test-suite/
Current build : https://ci.linaro.org/job/tcwg_flang_test--main-aarch64-Ofast-sve_vla-build/... Reference build : https://ci.linaro.org/job/tcwg_flang_test--main-aarch64-Ofast-sve_vla-build/...
Instruction to reproduce the build : https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/llvm/sh...
Full commit : https://github.com/llvm/llvm-project/commit/d36028120a6ef6346bfaafe82d4d1a28...
linaro-toolchain@lists.linaro.org
-
Takahiro Kawashima (Fujitsu)