Dear contributor,

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

In  arm-eabi cortex-m3 softfp, after:
  | commit gcc-16-3990-gad3fb999a1b5
  | Author: Jan Hubicka <jh@suse.cz>
  | Date:   Fri Sep 19 19:05:34 2025 +0200
  | 
  |     Improve ipa-cp devirtualization costing
  |     
  |     This patch fixed devirtualization time benefit of ipa-cp which should be scaled
  |     by edge frequency but it is not.  The cost model is still not correct for speculative
  |     calls, since it does not take into account the fact that code size will shrink if
  | ... 14 lines of the commit log omitted.

Produces 4 regressions:
  | 
  | regressions.sum:
  | Running g++:g++.dg/dg.exp ...
  | FAIL: g++.dg/ipa/devirt-2.C -std=gnu++17  scan-ipa-dump cp "Discovered a virtual call to a known target.*B::foo"
  | FAIL: g++.dg/ipa/devirt-2.C -std=gnu++26  scan-ipa-dump cp "Discovered a virtual call to a known target.*B::foo"
  | FAIL: g++.dg/ipa/devirt-2.C -std=gnu++98  scan-ipa-dump cp "Discovered a virtual call to a known target.*B::foo"
  | Running g++:g++.dg/lto/lto.exp ...
  | ... and 1 more

Used configuration :
 *CI config* tcwg_gnu_embed_check_gcc arm-eabi -mthumb -march=armv7-m -mtune=cortex-m3 -mfloat-abi=softfp -mfpu=auto
 *configure and test flags:* --target arm-eabi --disable-multilib --with-mode=thumb --with-cpu=cortex-m3 --with-float=softfp --target_board=-mthumb/-march=armv7-m/-mtune=cortex-m3/-mfloat-abi=softfp/-mfpu=auto qemu_cpu=cortex-m3

We track this bug report under https://linaro.atlassian.net/browse/GNU-692. 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_m3_softfp_eabi-build/531/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_m3_softfp_eabi-build/531/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_m3_softfp_eabi-build/531/artifact/artifacts/sumfiles/xfails.xfail

Current build   : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m3_softfp_eabi-build/531/artifact/artifacts
Reference build : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-thumb_m3_softfp_eabi-build/530/artifact/artifacts

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/ad3fb999a1b56893f0f6296a52fe2af550763fee/tcwg_gnu_embed_check_gcc/master-thumb_m3_softfp_eabi/reproduction_instructions.txt

Full commit : See in git+ssh://linaroci@gcc.gnu.org/git/gcc.git