[Linaro-TCWG-CI] gcc-15-6245-g4f4e13dd235b: 3 regressions on master-thumb_m55_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-m55 hard, after:
  | commit gcc-15-6245-g4f4e13dd235b
  | Author: Christophe Lyon <christophe.lyon@linaro.org>
  | Date:   Wed Nov 13 15:33:18 2024 +0000
  | 
  |     arm: [MVE intrinsics] rework vst2q vst4q vld2q vld4q
  |     
  |     Implement vst2q, vst4q, vld2q and vld4q using the new MVE builtins
  |     framework.
  |     
  | ... 132 lines of the commit log omitted.

Produces 3 regressions:
  | Running gcc:gcc.c-torture/execute/execute.exp ...
  | FAIL: gcc.c-torture/execute/loop-13.c -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (internal compiler error: in arm_attr_length_move_neon, at config/arm/arm.cc:20909)
  | FAIL: gcc.c-torture/execute/loop-13.c -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess errors)
  | UNRESOLVED: gcc.c-torture/execute/loop-13.c -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  compilation failed to produce executable

Used configuration :
 *CI config* tcwg_gnu_embed_check_gcc arm-eabi -mthumb -march=armv8.1-m.main+mve.fp+fp.dp -mtune=cortex-m55 -mfloat-abi=hard -mfpu=auto
 *configure and test flags:* --target arm-eabi --disable-multilib --with-mode=thumb --with-arch=armv8.1-m.main+mve.fp+fp.dp --with-float=hard --target_board=-mthumb/-march=armv8.1-m.main+mve.fp+fp.dp/-mtune=cortex-m55/-mfloat-abi=hard/-mfpu=auto qemu-cpu=cortex-m55

We track this bug report under https://linaro.atlassian.net/browse/GNU-1467. 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_m55_hard_eabi-build/730/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_m55_hard_eabi-build/730/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_m55_hard_eabi-build/730/artifact/artifacts/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m55_hard_eabi-build/730/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m55_hard_eabi-build/729/artifact/artifacts

Instruction to reproduce the build : https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/4f4e13dd235bba9c706948a3ecb3e530dd68aad1/tcwg_gnu_embed_check_gcc/master-thumb_m55_hard_eabi/reproduction_instructions.txt

Full commit : https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=4f4e13dd235bba9c706948a3ecb3e530dd68aad1