On Linux/x86_64, 5ea36d20c352a3ca436aa764404f6210b090866b is the first bad commit commit 5ea36d20c352a3ca436aa764404f6210b090866b Author: Jason Merrill <ja...@redhat.com> Date: Thu Dec 3 13:55:51 2020 -0500
c++: Add testcase for PR98019 caused FAIL: g++.dg/cpp2a/concepts-nodiscard1.C -std=c++2a (test for excess errors) with GCC configured with ../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r11-5719/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/cpp2a/concepts-nodiscard1.C --target_board='unix{-m32}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/cpp2a/concepts-nodiscard1.C --target_board='unix{-m32\ -march=cascadelake}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/cpp2a/concepts-nodiscard1.C --target_board='unix{-m64}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=g++.dg/cpp2a/concepts-nodiscard1.C --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)