https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97381
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Aldy Hernandez <al...@gcc.gnu.org>: https://gcc.gnu.org/g:46f4a397ab0907ce5786e1f0b92030a73e8b89ef commit r11-3836-g46f4a397ab0907ce5786e1f0b92030a73e8b89ef Author: Andrew MacLeod <amacl...@redhat.com> Date: Mon Oct 12 13:00:12 2020 -0400 Do not ignore failures from gimple_range_calc_op2. We were ignoring the return value if op2 returned false and getting garbage ranges propagated. gcc/ChangeLog: PR tree-optimization/97381 * gimple-range-gori.cc (gori_compute::compute_operand2_range): If a range cannot be calculated through operand 2, return false. gcc/testsuite/ChangeLog: * gcc.dg/pr97381.c: New test.