linaro-toolchain June 2025

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Re: [Linaro-TCWG-CI] llvmorg-21-init-13711-ga0d699a8e686: 2 regressions on aarch64

by Takahiro Kawashima (Fujitsu)

Hi, This failure is a false detection caused by a floating-point precision error in fast-math. Please ignore the mail. We'll update the test. Sorry for the noise. > 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_vls-lto-lld, after: > | commit llvmorg-21-init-13711-ga0d699a8e686 > | Author: Slava Zakharin <szakharin(a)nvidia.com> > | Date: Wed May 28 17:18:04 2025 -0700 > | > | Reland "[flang] Added noalias attribute to function arguments. (#140803)" > | > | This helps to disambiguate accesses in the caller and the callee > | after LLVM inlining in some apps. I did not see any performance > | changes, but this is one step towards enabling other optimizations > | ... 14 lines of the commit log omitted. > > Produces 2 regressions: > | > | regressions.sum: > | Running test-suite:Fujitsu/Fortran/0122 ... > | FAIL: test-suite :: Fujitsu/Fortran/0122/Fujitsu-Fortran-0122_0045.test > | FAIL: test-suite :: Fujitsu/Fortran/0122/Fujitsu-Fortran-0122_0048.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=256 -mllvm -treat-scalable-fixed-error-as-warning=false -flto -fuse-ld=lld -DNDEBUG" -DCMAKE_CXX_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=256 -mllvm -treat-scalable-fixed-error-as-warning=false -flto -fuse-ld=lld -DNDEBUG" -DCMAKE_Fortran_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=256 -mllvm -treat-scalable-fixed-error-as-warning=false -flto -fuse-ld=lld -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-1691. Please let us know if you have a fix. > > If you have any questions regarding this report, please ask on linaro-toolchain(a)lists.linaro.org mailing list. > > -----------------8<--------------------------8<--------------------------8<-------------------------- > > 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 > * https://ci.linaro.org/job/tcwg_flang_test--main-aarch64-Ofast-sve_vls-lto-l… > The full lists of regressions and improvements as well as configure and make commands are in > * https://ci.linaro.org/job/tcwg_flang_test--main-aarch64-Ofast-sve_vls-lto-l… > The list of [ignored] baseline and flaky failures are in > * https://ci.linaro.org/job/tcwg_flang_test--main-aarch64-Ofast-sve_vls-lto-l… > > Fujitsu testsuite : https://github.com/fujitsu/compiler-test-suite/ > > Current build : https://ci.linaro.org/job/tcwg_flang_test--main-aarch64-Ofast-sve_vls-lto-l… > Reference build : https://ci.linaro.org/job/tcwg_flang_test--main-aarch64-Ofast-sve_vls-lto-l… > > Instruction to reproduce the build : https://gitlab.com/Linaro/tcwg/ci/interesting-commits/-/raw/master/llvm/sha… > > Full commit : https://github.com/llvm/llvm-project/commit/a0d699a8e686cba99690cf28463d145…

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linaro-toolchain June 2025