On Linux/x86_64, fb1649f8b4ad5043dd0e65e4e3a643a0ced018a9 is the first bad commit commit fb1649f8b4ad5043dd0e65e4e3a643a0ced018a9 Author: Matthias Kretz <m.kr...@gsi.de> Date: Mon May 6 12:13:55 2024 +0200
libstdc++: Use __builtin_shufflevector for simd split and concat caused FAIL: experimental/simd/pr109261_constexpr_simd.cc -msse2 -O2 -Wno-psabi (test for excess errors) with GCC configured with ../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-429/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=experimental/simd/pr109261_constexpr_simd.cc --target_board='unix{-m32}'" (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.)