[Linaro-TCWG-CI] gcc-16-2334-g9e330977385: 2 regressions on arm

ci_notify--- via Gcc-regression <[email protected]>
Newsgroups gmane.comp.gcc.regression
Message-ID <[email protected]>
Dear contributor,

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

In  arm-eabi v7-a softfp, after:
  | commit gcc-16-2334-g9e330977385
  | Author: Jonathan Wakely <[email protected]>
  | Date:   Thu Jun 5 12:05:19 2025 +0100
  | 
  |     libstdc++: Add std::inplace_vector for C++26 (P0843R14) [PR119137]
  |     
  |     Implement std::inplace_vector as specified in P0843R14, without follow
  |     up papers, in particular P3074R7 (trivial unions). In consequence
  |     inplace_vector<T, N> can be used inside constant evaluations only
  | ... 62 lines of the commit log omitted.

Produces 2 regressions:
  | 
  | regressions.sum:
  | Running g++:g++.dg/dg.exp ...
  | FAIL: g++.dg/concepts/expression.C -std=gnu++17 (test for excess errors)
  | UNRESOLVED: g++.dg/concepts/expression.C -std=gnu++17 compilation failed to produce executable

Used configuration :
 *CI config* tcwg_gnu_embed_check_gcc arm-eabi -marm -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp
 *configure and test flags:* --target arm-eabi --disable-multilib --with-mode=arm --with-arch=armv7-a --with-fpu=vfpv3-d16 --with-float=softfp --target_board=-marm/-march=armv7-a/-mfpu=vfpv3-d16/-mfloat-abi=softfp qemu_cpu=cortex-a9

We track this bug report under https://linaro.atlassian.net/browse/GNU-1636. Please let us know if you have a fix.

If you have any questions regarding this report, please ask on [email protected] 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-arm_v7a_softfp_eabi-build/895/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-arm_v7a_softfp_eabi-build/895/artifact/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_v7a_softfp_eabi-build/895/artifact/artifacts/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_v7a_softfp_eabi-build/895/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_v7a_softfp_eabi-build/894/artifact/artifacts

Instruction to reproduce the build : https://gitlab.com/Linaro/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/9e3309773855d3639fdb9a7a7f7176612f16cd28/tcwg_gnu_embed_check_gcc/master-arm_v7a_softfp_eabi/reproduction_instructions.txt

Full commit : See in git+ssh://[email protected]/git/gcc.git
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