[Linaro-TCWG-CI] gcc-15-6163-ga2006457c67: 2 regressions 2 improvements on master-thumb_m7_hard_eabi

[ci_notify@linaro.org]

Dear contributor,

Our automatic CI has detected problems related to your patch(es). Please find some details below.

In  arm-eabi cortex-m7 hard, after:
  | commit gcc-15-6163-ga2006457c67
  | Author: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
  | Date:   Sun Oct 13 13:28:52 2024 +0200
  | 
  |     testsuite: arm: Use -mcpu=unset when overriding -march
  |     
  |     Update test cases to use -mcpu=unset/-march=unset feature introduced in
  |     r15-3606-g7d6c6a0d15c.
  |     
  | ... 39 lines of the commit log omitted.

Produces 2 regressions 2 improvements:
  | Running libstdc++:libstdc++-dg/conformance.exp ...
  | FAIL: experimental/simd/pr109261_constexpr_simd.cc -mfpu=neon -mfloat-abi=softfp -mcpu=unset -march=armv7-a -ffast-math -O2 -Wno-psabi (test for excess errors)
  | FAIL: experimental/simd/pr115454_find_last_set.cc -mfpu=neon -mfloat-abi=softfp -mcpu=unset -march=armv7-a -ffast-math -O2 -Wno-psabi (test for excess errors)
  | Running libstdc++:libstdc++-dg/conformance.exp ...
  | FAIL: experimental/simd/pr109261_constexpr_simd.cc -mfpu=neon -mfloat-abi=softfp -march=armv7-a -ffast-math -O2 -Wno-psabi (test for excess errors)
  | FAIL: experimental/simd/pr115454_find_last_set.cc -mfpu=neon -mfloat-abi=softfp -march=armv7-a -ffast-math -O2 -Wno-psabi (test for excess errors)

Used configuration :
 *CI config* tcwg_gnu_embed_check_gcc arm-eabi -mthumb -march=armv7e-m+fp.dp -mtune=cortex-m7 -mfloat-abi=hard -mfpu=auto
 *configure and test flags:* --target arm-eabi --disable-multilib --with-mode=thumb --with-cpu=cortex-m7 --with-float=hard --target_board=-mthumb/-march=armv7e-m+fp.dp/-mtune=cortex-m7/-mfloat-abi=hard/-mfpu=auto qemu_cpu=cortex-m7

We track this bug report under https://linaro.atlassian.net/browse/GNU-1465. 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
 * https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m7_hard_eabi-build/288/artifact/artifacts/00-sumfiles/
The full lists of regressions and improvements as well as configure and make commands are in
 * https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m7_hard_eabi-build/288/artifact/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m7_hard_eabi-build/288/artifact/artifacts/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m7_hard_eabi-build/288/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m7_hard_eabi-build/287/artifact/artifacts

Instruction to reproduce the build : https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/a2006457c676880315eee7728f2e0cf90bfbdd15/tcwg_gnu_embed_check_gcc/master-thumb_m7_hard_eabi/reproduction_instructions.txt

Full commit : https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=a2006457c676880315eee7728f2e0cf90bfbdd15