https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103003
--- Comment #4 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:0187c03be31a58ba561d535687dc00c94f0ff1aa commit r12-4821-g0187c03be31a58ba561d535687dc00c94f0ff1aa Author: Andrew MacLeod <amacl...@redhat.com> Date: Sat Oct 30 11:00:49 2021 -0400 Don't register nonsensical relations. gcc/ PR tree-optimization/103003 * value-relation.cc (dom_oracle::register_relation): If the 2 ssa names are the same, don't register any relation. gcc/testsuite/ * gcc.dg/pr103003.c: New.