[Linaro-TCWG-CI] gcc-17-3926-g93ac5163b5d: 3 regressions on arm

[ci_notify@linaro.org]

Dear contributor,

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

In  armv8l-unknown-linux-gnueabihf native, after:
  | commit gcc-17-3926-g93ac5163b5d
  | Author: Dominic P <gcc@gcc.dp11.uk>
  | Date:   Sun Aug 2 11:56:05 2026 +0100
  | 
  |     arm: fix vshll_n intrinsics with boundary shift [PR111609]
  |     
  |     The NEON widening-shift-left-long intrinsics (vshll_n_s8/s16/s32 and
  |     vshll_n_u8/u16/u32) accept a shift amount in the range [0, element_size].
  |     The bounds check in neon_vshll<sup>_n<mode> already permits a shift of
  | ... 32 lines of the commit log omitted.

Produces 3 regressions:
  | 
  | regressions.sum:
  | Running gcc:gcc.target/arm/arm.exp ...
  | FAIL: gcc.target/arm/vfp-shift-a2t2.c scan-assembler vshll.u16[ \t]+[qQ][0-9]+, [dD][0-9]+, #[0-9]+!?([ \t]+@[a-zA-Z0-9 ]+)?\n
  | FAIL: gcc.target/arm/vfp-shift-a2t2.c scan-assembler vshll.u32[ \t]+[qQ][0-9]+, [dD][0-9]+, #[0-9]+!?([ \t]+@[a-zA-Z0-9 ]+)?\n
  | FAIL: gcc.target/arm/vfp-shift-a2t2.c scan-assembler vshll.u8[ \t]+[qQ][0-9]+, [dD][0-9]+, #[0-9]+!?([ \t]+@[a-zA-Z0-9 ]+)?\n

Used configuration :
 *CI config* tcwg_gcc_check armv8l-unknown-linux-gnueabihf
 *configure and test flags:* none, autodetected on armv8l-unknown-linux-gnueabihf--disable-multilib --with-float=hard --with-mode=thumb --with-tune=cortex-a9 --with-arch=armv7-a --with-fpu=neon-fp-armv8

We track this bug report under https://linaro.atlassian.net/browse/GNU-2020. (Require Linaro login) 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
 * http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10626/archive/artifacts/00-sumfiles/
The full lists of regressions and improvements as well as configure and make commands are in
 * http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10626/archive/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10626/archive/artifacts/sumfiles/xfails.xfail

Current build   : http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10626/archive/artifacts/
Reference build : http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10625/archive/artifacts/

Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/93ac5163b5d02c2dfde88c3ec7b1f366caab9b45/tcwg_gcc_check/master-arm/reproduction_instructions.txt

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