On Linux/x86_64, a54137c88061c7495728fc6b8dfd0474e812b2cb is the first bad commit commit a54137c88061c7495728fc6b8dfd0474e812b2cb Author: Patrick Palka <ppa...@redhat.com> Date: Fri Apr 15 09:34:09 2022 -0400
libstdc++: Optimize integer std::from_chars caused FAIL: g++.dg/modules/xtreme-header-4_a.H module-cmi (gcm.cache/$srcdir/g++.dg/modules/xtreme-header-4_a.H.gcm) FAIL: g++.dg/modules/xtreme-header-4_a.H -std=c++17 (internal compiler error: in insert, at cp/module.cc:4800) FAIL: g++.dg/modules/xtreme-header-4_a.H -std=c++17 (test for excess errors) FAIL: g++.dg/modules/xtreme-header-4_a.H -std=c++2a (internal compiler error: in insert, at cp/module.cc:4800) FAIL: g++.dg/modules/xtreme-header-4_a.H -std=c++2a (test for excess errors) FAIL: g++.dg/modules/xtreme-header-4_a.H -std=c++2b (internal compiler error: in insert, at cp/module.cc:4800) FAIL: g++.dg/modules/xtreme-header-4_a.H -std=c++2b (test for excess errors) FAIL: g++.dg/modules/xtreme-header_a.H module-cmi (gcm.cache/$srcdir/g++.dg/modules/xtreme-header_a.H.gcm) FAIL: g++.dg/modules/xtreme-header_a.H -std=c++17 (internal compiler error: in insert, at cp/module.cc:4800) FAIL: g++.dg/modules/xtreme-header_a.H -std=c++17 (test for excess errors) FAIL: g++.dg/modules/xtreme-header_a.H -std=c++2a (internal compiler error: in insert, at cp/module.cc:4800) FAIL: g++.dg/modules/xtreme-header_a.H -std=c++2a (test for excess errors) FAIL: g++.dg/modules/xtreme-header_a.H -std=c++2b (internal compiler error: in insert, at cp/module.cc:4800) FAIL: g++.dg/modules/xtreme-header_a.H -std=c++2b (test for excess errors) with GCC configured with ../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r12-8175/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="modules.exp=g++.dg/modules/xtreme-header-4_a.H --target_board='unix{-m32}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="modules.exp=g++.dg/modules/xtreme-header-4_a.H --target_board='unix{-m32\ -march=cascadelake}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="modules.exp=g++.dg/modules/xtreme-header-4_a.H --target_board='unix{-m64}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="modules.exp=g++.dg/modules/xtreme-header-4_a.H --target_board='unix{-m64\ -march=cascadelake}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="modules.exp=g++.dg/modules/xtreme-header_a.H --target_board='unix{-m32}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="modules.exp=g++.dg/modules/xtreme-header_a.H --target_board='unix{-m32\ -march=cascadelake}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="modules.exp=g++.dg/modules/xtreme-header_a.H --target_board='unix{-m64}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="modules.exp=g++.dg/modules/xtreme-header_a.H --target_board='unix{-m64\ -march=cascadelake}'" (Please do not reply to this email, for question about this report, contact me at skpgkp2 at gmail dot com)