Dear contributor, Our automatic CI has detected problems related to your patch(es). Please find some details below. In aarch64 native, after: | commit gcc-17-4953-g53c3316a8c79 | Author: Roger Sayle | Date: Wed Oct 7 09:50:53 2026 +0100 | | PR tree-optimization/108477: Use ranger to select PLUS vs IOR in expand. | | This patch is my proposed solution to PR tree-optimization/108477. | The issue is that when the bits of A and B are disjoint, the expressions | A+B, A|B and A^B all compute the same result. The challenge is that | ... 71 lines of the commit log omitted. Produces 8 regressions: | | regressions.sum: | Running gcc:gcc.target/aarch64/aarch64.exp ... | FAIL: gcc.target/aarch64/combine_bfi_1.c scan-assembler-times \\tbfi\\t 5 | FAIL: gcc.target/aarch64/combine_bfi_2.c scan-assembler-times \\tbfi\\t 2 | FAIL: gcc.target/aarch64/combine_bfxil.c scan-assembler-times bfi\\t 15 | FAIL: gcc.target/aarch64/combine_bfxil.c scan-assembler-times bfxil\\t 3 | ... and 4 more Used configuration : *CI config* tcwg_gnu_native_check_gcc aarch64-linux-gnu *configure and test flags:* none, autodetected on aarch64-unknown-linux-gnu--disable-multilib --enable-fix-cortex-a53-835769 --enable-fix-cortex-a53-843419 --with-arch=armv8-a We track this bug report under https://linaro.atlassian.net/browse/GNU-2066. (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. -----------------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 * http://54.172.246.49:9090/jobs/tcwg_gnu_native_check_gcc--master-aarch64-build/builds/10412/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_gnu_native_check_gcc--master-aarch64-build/builds/10412/archive/artifacts/notify/ The list of [ignored] baseline and flaky failures are in * http://54.172.246.49:9090/jobs/tcwg_gnu_native_check_gcc--master-aarch64-build/builds/10412/archive/artifacts/sumfiles/xfails.xfail Current build : http://54.172.246.49:9090/jobs/tcwg_gnu_native_check_gcc--master-aarch64-build/builds/10412/archive/artifacts/ Reference build : http://54.172.246.49:9090/jobs/tcwg_gnu_native_check_gcc--master-aarch64-build/builds/10411/archive/artifacts/ Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/53c3316a8c79bd873a884bf89c11144d42af7f7c/tcwg_gnu_native_check_gcc/master-aarch64/reproduction_instructions.txt Full commit : See in git+ssh://linaroci@gcc.gnu.org/git/gcc.git