Hi, These tests are incorrect. The optimization introduced by LLVM-2258 converts trigonometric library calls into LLVM intrinsics and combines matching sin()/cos() pairs into sincos(). As a result, generated code for trigonometric operations changes slightly and produces small numerical variations that are still within expected single-precision accuracy. The failing cases are therefore test-suite issues rather than compiler correctness issues.

Please ignore the mail. We'll update the test. We apologize for the false detection.

Best regards, Yasuyuki Ohno

Software Development Div., Advanced Technology Development Unit, Fujitsu Research, Fujitsu Limited, JAPAN. ________________________________ 差出人: ci_notify@linaro.org ci_notify@linaro.org 送信日時: 2026年7月31日 15:05 宛先: contact-ci-compiler-test-suite@cs.jp.fujitsu.com contact-ci-compiler-test-suite@cs.jp.fujitsu.com CC: kito.cheng@sifive.com kito.cheng@sifive.com; maxim.kuvyrkov@linaro.org maxim.kuvyrkov@linaro.org 件名: [Linaro-TCWG-CI] llvmorg-24-init-166-g0e877fd1a637: 3 regressions on aarch64

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-24-init-166-g0e877fd1a637 | Author: Kito Cheng kito.cheng@sifive.com | Date: Wed Jul 15 17:20:55 2026 +0800 | | Reland "[InstCombine] Combine llvm.sin/llvm.cos libcall pairs into llvm.sincos" (#194616) | | This reland #184760 | | Fixed https://lab.llvm.org/buildbot/#/builders/123/builds/39337 | ... 25 lines of the commit log omitted.

Produces 3 regressions: | | regressions.sum: | Running test-suite:Fujitsu/Fortran/0118 ... | FAIL: test-suite :: Fujitsu/Fortran/0118/Fujitsu-Fortran-0118_0309.test | Running test-suite:Fujitsu/Fortran/0631 ... | FAIL: test-suite :: Fujitsu/Fortran/0631/Fujitsu-Fortran-0631_0072.test | Running test-suite:Fujitsu/Fortran/0641 ... | ... and 1 more | # "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;clang-tools-extra" "-DLLVM_ENABLE_RUNTIMES=openmp" -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/bin2/clang" -DCMAKE_CXX_COMPILER="$\WORKSPACE/llvm-install/bin2/clang++" -DCMAKE_Fortran_COMPILER="$\WORKSPACE/llvm-install/bin2/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 -DNDEBUG" -DCMAKE_CXX_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=scalable -mllvm -scalable-vectorization=preferred -DNDEBUG" -DCMAKE_Fortran_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=scalable -mllvm -scalable-vectorization=preferred -DNDEBUG" -DTEST_SUITE_FORTRAN=ON -DTEST_SUITE_SUBDIRS=Fujitsu -DTEST_SUITE_FUJITSU_WITH_FAST_MATH=ON "$\WORKSPACE/test/test-suite"

We track this bug report under https://linaro.atlassian.net/browse/LLVM-2258. (Require Linaro login) 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 * http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vla-b... The full lists of regressions and improvements as well as configure and make commands are in * http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vla-b... The list of [ignored] baseline and flaky failures are in * http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vla-b...

Fujitsu testsuite : https://github.com/fujitsu/compiler-test-suite/

Current build : http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vla-b... Reference build : http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vla-b...

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/llvm/s...

Full commit : https://github.com/llvm/llvm-project/commit/0e877fd1a637ec2964883d324600211a...