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-17-286-ga66820ce3f5 | Author: Philipp Tomsich <[email protected]> | Date: Thu Apr 9 10:58:23 2026 +0200 | | tree-optimization/122569 - fix DeBruijn CLZ table validator shift-by-64 UB | | simplify_count_zeroes validates DeBruijn CLZ tables by computing | (1 << (data + 1)) - 1 to simulate the value produced by the OR-cascade | b |= b >> 1; ... b |= b >> 32. For 64-bit input with data == 63 (the | ... 25 lines of the commit log omitted. Produces 2 regressions: | | regressions.sum: | Running gcc:gcc.dg/tree-ssa/tree-ssa.exp ... | FAIL: gcc.dg/tree-ssa/pr122569-1.c scan-tree-dump forwprop1 "__builtin_ctz|\\.CTZ" | FAIL: gcc.dg/tree-ssa/pr122569-2.c scan-tree-dump forwprop1 "__builtin_clz|\\.CLZ" 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-1889. 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 * http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10158/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/10158/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/10158/archive/artifacts/sumfiles/xfails.xfail Current build : http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10158/archive/artifacts/ Reference build : http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-arm-build/builds/10156/archive/artifacts/ Instruction to reproduce the build : https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/a66820ce3f5b298759042b6543a056b490370310/tcwg_gcc_check/master-arm/reproduction_instructions.txt Full commit : See in git+ssh://[email protected]/git/gcc.git
