https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118522
--- Comment #4 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:3ab9eb6946f7b832834b3d808c5617935e0be727 commit r15-6992-g3ab9eb6946f7b832834b3d808c5617935e0be727 Author: Jakub Jelinek <ja...@redhat.com> Date: Fri Jan 17 11:30:07 2025 +0100 match.pd: Fix (FTYPE) N CMP (FTYPE) M optimization for GENERIC [PR118522] The last case of this optimization assumes that if 2 integral types have same precision and TYPE_UNSIGNED, then they are uselessly convertible. While that is very likely the case for GIMPLE, it is not the case for GENERIC, so the following patch adds there a convert so that the optimization produces also valid GENERIC. Without it we got (int) p == b where b had _BitInt(32) type, so incompatible types. 2025-01-17 Jakub Jelinek <ja...@redhat.com> PR tree-optimization/118522 * match.pd ((FTYPE) N CMP (FTYPE) M): Add convert, as in GENERIC integral types with the same precision and sign might actually not be compatible types. * gcc.dg/bitint-120.c: New test.
