- Project: GNU
  IssueType: Sub-task
  Key: GNU-1042
  Summary: |
    gcc-14-5779-g746344dd538: FAIL: 1 regressions
  Components: GCC
  Start date: 2023-11-23
  Description: |
    Commit: https://github.com/gcc-mirror/gcc/commit/746344dd53807d840c29f52adba10d0ab093bd3d
    commit gcc-14-5779-g746344dd538
    Author: Di Zhao <dizhao@os.amperecomputing.com>
    Date:   Thu Nov 9 15:06:37 2023 +0800
    
        swap ops in reassoc to reduce cross backedge FMA
        
        Previously for ops.length >= 3, when FMA is present, we don't
        rank the operands so that more FMAs can be preserved. But this
        brings more FMAs with loop dependency, which lead to worse
        performance on some targets.
        
    ... 24 lines of the commit log omitted.
    
    * tcwg_gnu_cross_check_gcc
    ** master-arm
    *** FAIL: 1 regressions
    *** https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/746344dd53807d840c29f52adba10d0ab093bd3d/tcwg_gnu_cross_check_gcc/master-arm/details.txt
    *** https://ci.linaro.org/job/tcwg_gnu_cross_check_gcc--master-arm-build/1033/
    * tcwg_gnu_embed_check_gcc
    ** master-arm_v7a_softfp_eabi
    *** FAIL: 1 regressions
    *** https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/746344dd53807d840c29f52adba10d0ab093bd3d/tcwg_gnu_embed_check_gcc/master-arm_v7a_softfp_eabi/details.txt
    *** https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_v7a_softfp_eabi-build/318/
    ** master-thumb_m3_eabi
    *** FAIL: 1 regressions
    *** https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/746344dd53807d840c29f52adba10d0ab093bd3d/tcwg_gnu_embed_check_gcc/master-thumb_m3_eabi/details.txt
    *** https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m3_eabi-build/234/
    
    Latest data: https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/746344dd53807d840c29f52adba10d0ab093bd3d/jira/yaml