Hi, The issue is caused by an overly strict test tolerance rather than an incorrect compiler result. We will resolve the issue by changing the tolerance value (error = 0.050) to a value equivalent to approximately 5 ULP (e.g., 0.16).

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8月7日 4:48 宛先: contact-ci-compiler-test-suite@cs.jp.fujitsu.com contact-ci-compiler-test-suite@cs.jp.fujitsu.com CC: maxim.kuvyrkov@linaro.org maxim.kuvyrkov@linaro.org; a.bataev@outlook.com a.bataev@outlook.com 件名: [Linaro-TCWG-CI] llvmorg-24-init-1585-g3cf44478fcf5: 1 regression 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-1585-g3cf44478fcf5 | Author: Alexey Bataev a.bataev@outlook.com | Date: Fri Jul 24 10:04:32 2026 -0400 | | [ConstantFolding]Fold llvm.powi via square-and-multiply (#210771) | | Compute constant-folded powi using APFloat multiplies in the operand's | own semantics (square-and-multiply), matching the expansion | ExpandPowI generates in SelectionDAGBuilder, instead of routing | ... 1 lines of the commit log omitted.

Produces 1 regression: | | regressions.sum: | Running test-suite:Fujitsu/Fortran/0104 ... | FAIL: test-suite :: Fujitsu/Fortran/0104/Fujitsu-Fortran-0104_0086.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;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-2259. (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/3cf44478fcf54c8996c88c1214d2170c...