Hi,
Probably 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-18750-gdd60663b9bfa
> | Author: Alexey Bataev <a.bat...@outlook.com>
> | Date: Wed Jul 9 19:52:09 2025 -0400
> |
> | [SLP] Emit reduction instead of 2 extracts + scalar op, when
> vectorizing operands (#147583)
> |
> | Added emission of the 2-element reduction instead of 2 extracts +
> scalar
> | op, when trying to vectorize operands of the instruction, if it is
> more
> | profitable.
>
> Produces 2 regressions:
> |
> | regressions.sum:
> | Running test-suite:Fujitsu/C/0030 ...
> | FAIL: test-suite :: Fujitsu/C/0030/Fujitsu-C-0030_0056.test
> | Running test-suite:Fujitsu/Fortran/0334 ...
> | FAIL: test-suite :: Fujitsu/Fortran/0334/Fujitsu-Fortran-0334_0012.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-1728.
> 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.
>
> -----------------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-lld-build/2181/artifact/artifacts/00-sumfiles/
> 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-lld-build/2181/artifact/artifacts/notify/
> The list of [ignored] baseline and flaky failures are in
> *
> https://ci.linaro.org/job/tcwg_flang_test--main-aarch64-Ofast-sve_vls-lto-lld-build/2181/artifact/artifacts/sumfiles/xfails.xfail
>
> 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-lld-build/2181/artifact/artifacts
> Reference build :
> https://ci.linaro.org/job/tcwg_flang_test--main-aarch64-Ofast-sve_vls-lto-lld-build/2180/artifact/artifacts
>
> Instruction to reproduce the build :
> https://gitlab.com/Linaro/tcwg/ci/interesting-commits/-/raw/master/llvm/sha1/dd60663b9bfaab15362a850ba7f63bafc11a56d4/tcwg_flang_test/main-aarch64-Ofast-sve_vls-lto-lld/reproduction_instructions.txt
>
> Full commit :
> https://github.com/llvm/llvm-project/commit/dd60663b9bfaab15362a850ba7f63bafc11a56d4
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