On Linux/x86_64, 7931a1de9ec87b996d51d3d60786f5c81f63919f is the first bad commit commit 7931a1de9ec87b996d51d3d60786f5c81f63919f Author: Jonathan Wakely <jwak...@redhat.com> Date: Wed Jul 26 14:09:24 2023 +0100
libstdc++: Avoid bogus overflow warnings in std::vector<bool> [PR110807] caused FAIL: 23_containers/vector/bool/110807.cc (test for excess errors) with GCC configured with ../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-2797/usr --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld --with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl --enable-libmpx x86_64-linux --disable-bootstrap To reproduce: $ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check RUNTESTFLAGS="conformance.exp=23_containers/vector/bool/110807.cc --target_board='unix{-m32}'" $ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check RUNTESTFLAGS="conformance.exp=23_containers/vector/bool/110807.cc --target_board='unix{-m32\ -march=cascadelake}'" (Please do not reply to this email, for question about this report, contact me at haochen dot jiang at intel.com.) (If you met problems with cascadelake related, disabling AVX512F in command line might save that.) (However, please make sure that there is no potential problems with AVX512.)