Re: [Linaro-TCWG-CI] gcc-16-5947-ga6c50ec2c6e: 6 regressions on arm

"H.J. Lu via Gcc-regression" <[email protected]>
Newsgroups gmane.comp.gcc.regression,gmane.linux.linaro.toolchain
Message-ID <CAMe9rOoXUUsHibnfCdR6rw9mK6GAuS65s0ojtRR1qXwCO+Cysg@mail.gmail.com>
On Tue, Dec 30, 2025 at 11:36 PM <[email protected]> wrote:
>
> 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-16-5947-ga6c50ec2c6e
>   | Author: H.J. Lu <[email protected]>
>   | Date:   Fri Oct 24 09:00:59 2025 +0800
>   |
>   |     Add -ffuse-ops-with-volatile-access
>   |
>   |     Volatile memory can be used as source operand for any operations.  Add
>   |     -ffuse-ops-with-volatile-access to fuse operations with volatile memory
>   |     reference and update simplify_binary_operation_1 to keep PLUS for 2
>   | ... 227 lines of the commit log omitted.
>
> Produces 6 regressions:
>   |
>   | regressions.sum:
>   | Running gcc:gcc.target/arm/arm.exp ...
>   | FAIL: gcc.target/arm/bfloat16_scalar_1_2.c check-function-bodies stacktest1
>   | FAIL: gcc.target/arm/bfloat16_scalar_2_2.c check-function-bodies stacktest1
>   | FAIL: gcc.target/arm/bfloat16_scalar_3_2.c check-function-bodies stacktest1
>   | FAIL: gcc.target/arm/bfloat16_simd_1_2.c check-function-bodies stacktest1

Please check if the outputs are functional correct.

>   | ... and 2 more
>
> 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-1798. Please let us know if you have a fix.
>
> If you have any questions regarding this report, please ask on [email protected] mailing list.
>
> -----------------8<--------------------------8<--------------------------8<--------------------------
>
> 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/1066/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/1066/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/1066/artifact/artifacts/sumfiles/xfails.xfail
>
> Current build   : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_v7a_softfp_eabi-build/1066/artifact/artifacts
> Reference build : https://ci.linaro.org/job/tcwg_gnu_embed_check_gcc--master-arm_v7a_softfp_eabi-build/1065/artifact/artifacts
>
> Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/a6c50ec2c6ebcbda2b032eee0552a6a486355e12/tcwg_gnu_embed_check_gcc/master-arm_v7a_softfp_eabi/reproduction_instructions.txt
>
> Full commit : See in git+ssh://[email protected]/git/gcc.git



-- 
H.J.
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