[Linaro-TCWG-CI] gcc-15-4395-g74caf97572d: 2 regressions on master-thumb_m0_soft_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-m0 soft, after:
  | commit gcc-15-4395-g74caf97572d
  | Author: Christophe Lyon <christophe.lyon@arm.com>
  | Date:   Tue Jun 25 15:47:23 2024 +0200
  | 
  |     arm: [MVE intrinsics] Improve vdupq_n implementation
  |     
  |     This patch makes the non-predicated vdupq_n MVE intrinsics use
  |     vec_duplicate rather than an unspec.  This enables the compiler to
  |     generate better code sequences (for instance using vmov when
  | ... 106 lines of the commit log omitted.

Produces 2 regressions:
  | Running g++:g++.target/arm/mve.exp ...
  | FAIL: g++.target/arm/../../gcc.target/arm/mve/intrinsics/vdupq_n_f32.c check-function-bodies foo1
  | Running gcc:gcc.target/arm/mve/mve.exp ...
  | FAIL: gcc.target/arm/mve/intrinsics/vdupq_n_f32.c check-function-bodies foo1

Used configuration :
 *CI config* tcwg_gnu_embed_check_gcc arm-eabi -mthumb -march=armv6s-m -mtune=cortex-m0 -mfloat-abi=soft -mfpu=auto
 *configure and test flags:* --target arm-eabi --disable-multilib --with-mode=thumb --with-cpu=cortex-m0 --with-float=soft --target_board=-mthumb/-march=armv6s-m/-mtune=cortex-m0/-mfloat-abi=soft/-mfpu=auto qemu_cpu=cortex-m0

We track this bug report under https://linaro.atlassian.net/browse/GNU-1414. 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_m0_soft_eabi-build/221/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_m0_soft_eabi-build/221/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_m0_soft_eabi-build/221/artifact/artifacts/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m0_soft_eabi-build/221/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m0_soft_eabi-build/220/artifact/artifacts

Instruction to reproduce the build : https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/74caf97572d84c7c4503d10773e0f8e8544c50d9/tcwg_gnu_embed_check_gcc/master-thumb_m0_soft_eabi/reproduction_instructions.txt

Full commit : https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=74caf97572d84c7c4503d10773e0f8e8544c50d9