On Linux/x86_64, 3bff15c1c9fb3eb0bb042717e072476ec2d6d88c is the first bad commit commit 3bff15c1c9fb3eb0bb042717e072476ec2d6d88c Author: Aldy Hernandez <al...@redhat.com> Date: Mon Nov 7 08:40:12 2022 +0100
[range-op] Restrict division by power of 2 optimization to positive numbers. caused FAIL: gcc.dg/tree-ssa/pr107541.c execution test with GCC configured with ../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r13-3752/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="tree-ssa.exp=gcc.dg/tree-ssa/pr107541.c --target_board='unix{-m32}'" $ cd {build_dir}/gcc && make check RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/pr107541.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)