Hi, The test violates Fortran dummy argument aliasing rules. Overlapping elements (xx(6) and yy(1)) reference the same memory (x(6)), and the code performs both read and write through different dummy arguments, resulting in undefined behavior. 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: 2026 年 7 月 5 日 (日曜日) 21:01 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; kunalspathak.github@gmail.com kunalspathak.github@gmail.com 件名: [Linaro-TCWG-CI] llvmorg-23-init-20398-g2668971e1421: 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-23-init-20398-g2668971e1421 | Author: Kunal Pathak kunalspathak.github@gmail.com | Date: Wed Jun 24 08:22:51 2026 -0700 | | [AArch64][ISel] Enable profile-aware branch condition merging (#201486) | | AArch64 previously inherited the default {-1, -1, -1} for | `getJumpConditionMergingParams`, causing | `shouldKeepJumpConditionsTogether` in SelectionDAGBuilder to always | ... 28 lines of the commit log omitted.

Produces 1 regression: | | regressions.sum: | Running test-suite:Fujitsu/Fortran/0328 ... | FAIL: test-suite :: Fujitsu/Fortran/0328/Fujitsu-Fortran-0328_0022.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-2241. (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/2668971e14219205ddf6b1f753cf83f7...