On Linux/x86_64, 1d3e4f4e2d19c3394dc018118a78c1f4b59cb5c2 is the first bad commit commit 1d3e4f4e2d19c3394dc018118a78c1f4b59cb5c2 Author: Lewis Hyatt <lhy...@gmail.com> Date: Tue Jul 18 17:16:08 2023 -0400
libcpp: Handle extended characters in user-defined literal suffix [PR103902] caused FAIL: g++.dg/cpp0x/udlit-extended-id-1.C -std=c++14 (test for excess errors) FAIL: g++.dg/cpp0x/udlit-extended-id-1.C -std=c++17 (test for excess errors) FAIL: g++.dg/cpp0x/udlit-extended-id-1.C -std=c++20 (test for excess errors) FAIL: g++.dg/cpp0x/udlit-extended-id-3.C -std=c++14 (test for excess errors) FAIL: g++.dg/cpp0x/udlit-extended-id-3.C -std=c++17 (test for excess errors) FAIL: g++.dg/cpp0x/udlit-extended-id-3.C -std=c++20 (test for excess errors) with GCC configured with ../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-2629/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}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/cpp0x/udlit-extended-id-1.C --target_board='unix{-m32}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/cpp0x/udlit-extended-id-1.C --target_board='unix{-m32\ -march=cascadelake}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/cpp0x/udlit-extended-id-3.C --target_board='unix{-m32}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/cpp0x/udlit-extended-id-3.C --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.)