Hi, This test is incorrect. I apologize for the false detection.
This issue involves the emergence of precision errors due to a change in the evaluation path for complex number division. Therefore, we will correct the tests. It may take some time due to our internal release process, sorry.
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6月15日 14:56 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; carlo.bertolli@amd.com carlo.bertolli@amd.com 件名: [Linaro-TCWG-CI] llvmorg-23-init-18988-g9ce63d09cff0: 2 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_vls-lto-lld, after: | commit llvmorg-23-init-18988-g9ce63d09cff0 | Author: carlobertolli carlo.bertolli@amd.com | Date: Thu Jun 11 14:19:36 2026 -0500 | | [AMDGPU][SCEV] Tighten max backedge-taken count for shift recurrence loops. (#197292) | | Application code on AMDGPUs often uses the following pattern: | | for (int i = blockDim.x / 2; i >= 1; i >>= 1) | ... 19 lines of the commit log omitted.
Produces 2 regressions: | | regressions.sum: | Running test-suite:Fujitsu/Fortran/0640 ... | FAIL: test-suite :: Fujitsu/Fortran/0640/Fujitsu-Fortran-0640_0306.test | Running test-suite:Fujitsu/Fortran/0641 ... | FAIL: test-suite :: Fujitsu/Fortran/0641/Fujitsu-Fortran-0641_0279.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=256 -flto -fuse-ld=lld -DNDEBUG" -DCMAKE_CXX_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=256 -flto -fuse-ld=lld -DNDEBUG" -DCMAKE_Fortran_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=256 -flto -fuse-ld=lld -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-2234. (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.
-----------------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 * http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vls-l... 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_vls-l... The list of [ignored] baseline and flaky failures are in * http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vls-l...
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_vls-l... Reference build : http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vls-l...
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/9ce63d09cff0bf07da9623b753010112...
AMD General
Thanks, I was just reviewing a suspect case similar to this one when upper bound unrolling was provoking a performance slow down even when not turned on for AMDGPUs (as in the llvm PR). It turns out it was a false positive, as the slow down was due to runtime unrolling.
Best
-- Carlo
From: Yasuyuki Ohno (Fujitsu) ohno.yasuyuki@fujitsu.com Sent: Monday, June 22, 2026 12:26 AM To: Bertolli, Carlo Carlo.Bertolli@amd.com Cc: Maxim Kuvyrkov maxim.kuvyrkov@linaro.org; 'linaro-toolchain@lists.linaro.org' linaro-toolchain@lists.linaro.org; 'contact-ci-compiler-test-suite@cs.jp.fujitsu.com' contact-ci-compiler-test-suite@cs.jp.fujitsu.com Subject: Re: [Linaro-TCWG-CI] llvmorg-23-init-18988-g9ce63d09cff0: 2 regressions on aarch64
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Hi, This test is incorrect. I apologize for the false detection.
This issue involves the emergence of precision errors due to a change in the evaluation path for complex number division. Therefore, we will correct the tests. It may take some time due to our internal release process, sorry.
Best regards, Yasuyuki Ohno
Software Development Div., Advanced Technology Development Unit, Fujitsu Research, Fujitsu Limited, JAPAN. ________________________________ 差出人: ci_notify@linaro.orgmailto:ci_notify@linaro.org <ci_notify@linaro.orgmailto:ci_notify@linaro.org> 送信日時: 2026年6月15日 14:56 宛先: contact-ci-compiler-test-suite@cs.jp.fujitsu.commailto:contact-ci-compiler-test-suite@cs.jp.fujitsu.com <contact-ci-compiler-test-suite@cs.jp.fujitsu.commailto:contact-ci-compiler-test-suite@cs.jp.fujitsu.com> CC: maxim.kuvyrkov@linaro.orgmailto:maxim.kuvyrkov@linaro.org <maxim.kuvyrkov@linaro.orgmailto:maxim.kuvyrkov@linaro.org>; carlo.bertolli@amd.commailto:carlo.bertolli@amd.com <carlo.bertolli@amd.commailto:carlo.bertolli@amd.com> 件名: [Linaro-TCWG-CI] llvmorg-23-init-18988-g9ce63d09cff0: 2 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_vls-lto-lld, after: | commit llvmorg-23-init-18988-g9ce63d09cff0 | Author: carlobertolli <carlo.bertolli@amd.commailto:carlo.bertolli@amd.com> | Date: Thu Jun 11 14:19:36 2026 -0500 | | [AMDGPU][SCEV] Tighten max backedge-taken count for shift recurrence loops. (#197292) | | Application code on AMDGPUs often uses the following pattern: | | for (int i = blockDim.x / 2; i >= 1; i >>= 1) | ... 19 lines of the commit log omitted.
Produces 2 regressions: | | regressions.sum: | Running test-suite:Fujitsu/Fortran/0640 ... | FAIL: test-suite :: Fujitsu/Fortran/0640/Fujitsu-Fortran-0640_0306.test | Running test-suite:Fujitsu/Fortran/0641 ... | FAIL: test-suite :: Fujitsu/Fortran/0641/Fujitsu-Fortran-0641_0279.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="$\WORKSPACE/llvm-install/bin2/flang-new" -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_FLAGS= -DCMAKE_CXX_FLAGS= -DCMAKE_Fortran_FLAGS= -DCMAKE_C_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=256 -flto -fuse-ld=lld -DNDEBUG" -DCMAKE_CXX_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=256 -flto -fuse-ld=lld -DNDEBUG" -DCMAKE_Fortran_FLAGS_RELEASE="-O3 -ffast-math -march=armv8.4-a+sve -msve-vector-bits=256 -flto -fuse-ld=lld -DNDEBUG" -DTEST_SUITE_FORTRAN=ON -DTEST_SUITE_SUBDIRS=Fujitsu -DTEST_SUITE_FUJITSU_WITH_FAST_MATH=ON "$\WORKSPACE/test/test-suite"
We track this bug report under https://linaro.atlassian.net/browse/LLVM-2234. (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.orgmailto: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 * http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vls-l... 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_vls-l... The list of [ignored] baseline and flaky failures are in * http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vls-l...
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_vls-l... Reference build : http://54.172.246.49:9090/jobs/tcwg_flang_test--main-aarch64-Ofast-sve_vls-l...
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/9ce63d09cff0bf07da9623b753010112...
linaro-toolchain@lists.linaro.org
-
Bertolli, Carlo -
Yasuyuki Ohno (Fujitsu)