https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91597
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Tue Sep 3 16:55:31 2019 New Revision: 275345 URL: https://gcc.gnu.org/viewcvs?rev=275345&root=gcc&view=rev Log: PR tree-optimization/91597 * tree-vrp.c (extract_range_from_binary_expr): Remove unsafe BIT_AND_EXPR optimization for pointers, even if both operand ranges don't include NULL, the result can be NULL. * gcc.c-torture/execute/pr91597.c: New test. Added: branches/gcc-9-branch/gcc/testsuite/gcc.c-torture/execute/pr91597.c Modified: branches/gcc-9-branch/gcc/ChangeLog branches/gcc-9-branch/gcc/testsuite/ChangeLog branches/gcc-9-branch/gcc/tree-vrp.c
