On Linux/x86_64, c9ce332b557bb95987d038d98ea929cdfd1eae1d is the first bad commit commit c9ce332b557bb95987d038d98ea929cdfd1eae1d Author: Jonathan Wakely <jwak...@redhat.com> Date: Wed Feb 7 11:31:10 2024 +0000
libstdc++: Use 128-bit arithmetic for std::linear_congruential_engine [PR87744] caused FAIL: 26_numerics/random/pr60037-neg.cc -std=gnu++17 (test for errors, line 271) FAIL: 26_numerics/random/pr60037-neg.cc -std=gnu++17 (test for excess errors) with GCC configured with ../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-8998/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=26_numerics/random/pr60037-neg.cc --target_board='unix{-m32}'" $ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check RUNTESTFLAGS="conformance.exp=26_numerics/random/pr60037-neg.cc --target_board='unix{-m32\ -march=cascadelake}'" $ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check RUNTESTFLAGS="conformance.exp=26_numerics/random/pr60037-neg.cc --target_board='unix{-m64}'" $ cd {build_dir}/x86_64-linux/libstdc++-v3/testsuite && make check RUNTESTFLAGS="conformance.exp=26_numerics/random/pr60037-neg.cc --target_board='unix{-m64\ -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.)