https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101497
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Andrew Macleod <amacl...@gcc.gnu.org>: https://gcc.gnu.org/g:ea789238b2c24eedf70b56257235adf3d33c5a0a commit r12-2465-gea789238b2c24eedf70b56257235adf3d33c5a0a Author: Andrew MacLeod <amacl...@redhat.com> Date: Mon Jul 19 15:16:25 2021 -0400 Check for undefined on COND_EXPR before querying type. gcc/ PR tree-optimization/101497 * gimple-range-fold.cc (fold_using_range::range_of_cond_expr): Check for undefined. gcc/testsuite * gcc.dg/pr101497.c: New.