https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97888
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Jakub Jelinek <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:71c9d2b088c9d409a1bd3b50523ac4623a5bf1b4 commit r11-5150-g71c9d2b088c9d409a1bd3b50523ac4623a5bf1b4 Author: Jakub Jelinek <ja...@redhat.com> Date: Wed Nov 18 22:13:06 2020 +0100 vrp: Fix operator_trunc_mod::op1_range [PR97888] As mentioned in the PR, in (x % y) >= 0 && y >= 0, we can't deduce x's range to be x >= 0, as e.g. -7 % 7 is 0. But we can deduce it from (x % y) > 0. The patch also fixes up the comments. 2020-11-18 Jakub Jelinek <ja...@redhat.com> PR tree-optimization/91029 PR tree-optimization/97888 * range-op.cc (operator_trunc_mod::op1_range): Only set op1 range to >= 0 if lhs is > 0, rather than >= 0. Fix up comments. * gcc.dg/pr91029.c: Add comment with PR number. (f2): Use > 0 rather than >= 0. * gcc.c-torture/execute/pr97888-1.c: New test. * gcc.c-torture/execute/pr97888-2.c: New test.
