https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103466
--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by H.J. Lu <h...@gcc.gnu.org>: https://gcc.gnu.org/g:70b043845d7c378c6a9361a6769885897d1018c2 commit r12-5806-g70b043845d7c378c6a9361a6769885897d1018c2 Author: H.J. Lu <hjl.to...@gmail.com> Date: Tue Nov 30 05:31:26 2021 -0800 libsanitizer: Use SSE to save and restore XMM registers Use SSE, instead of AVX, to save and restore XMM registers to support processors without AVX. The affected codes are unused in upstream since https://github.com/llvm/llvm-project/commit/66d4ce7e26a5 and will be removed in https://reviews.llvm.org/D112604 This fixed FAIL: g++.dg/tsan/pthread_cond_clockwait.C -O0 execution test FAIL: g++.dg/tsan/pthread_cond_clockwait.C -O2 execution test on machines without AVX. PR sanitizer/103466 * tsan/tsan_rtl_amd64.S (__tsan_trace_switch_thunk): Replace vmovdqu with movdqu. (__tsan_report_race_thunk): Likewise.
