On Linux/x86_64, a33e3dcbd15e73603796e30b5eeec11a0c8bacec is the first bad commit commit a33e3dcbd15e73603796e30b5eeec11a0c8bacec Author: Vladimir N. Makarov <vmaka...@redhat.com> Date: Mon Feb 13 16:05:04 2023 -0500
RA: Clear reg equiv caller_save_p flag when clearing defined_p flag caused FAIL: gcc.target/i386/pr108774.c (test for excess errors) with GCC configured with ../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r13-5971/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="i386.exp=gcc.target/i386/pr108774.c --target_board='unix{-m32}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/pr108774.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)