https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113201
--- Comment #3 from GCC 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:b8faf1fca42a9b987fec0992ca5d63995b2640b3 commit r14-6941-gb8faf1fca42a9b987fec0992ca5d63995b2640b3 Author: Jakub Jelinek <ja...@redhat.com> Date: Fri Jan 5 11:18:17 2024 +0100 scev: Avoid ICE on results used in abnormal PHI args [PR113201] The following testcase ICEs when rslt is SSA_NAME_OCCURS_IN_ABNORMAL_PHI and we call replace_uses_by with a INTEGER_CST def, where it ICEs on: if (e->flags & EDGE_ABNORMAL && !SSA_NAME_OCCURS_IN_ABNORMAL_PHI (val)) because val is not an SSA_NAME. One way would be to add && TREE_CODE (val) == SSA_NAME check in between the above 2 lines in replace_uses_by. And/or the following patch just punts propagating constants to SSA_NAME_OCCURS_IN_ABNORMAL_PHI rslt uses. Or we could punt somewhere earlier in final value replacement (but dunno where). 2024-01-05 Jakub Jelinek <ja...@redhat.com> PR tree-optimization/113201 * tree-scalar-evolution.cc (final_value_replacement_loop): Don't call replace_uses_by on SSA_NAME_OCCURS_IN_ABNORMAL_PHI rslt. * gcc.c-torture/compile/pr113201.c: New test.
