https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118692
--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:6b56e645a7b481693fe6982f8f09ba2e07768bf8 commit r15-7284-g6b56e645a7b481693fe6982f8f09ba2e07768bf8 Author: Richard Biener <rguent...@suse.de> Date: Wed Jan 29 15:09:35 2025 +0100 middle-end/118692 - ICE with out-of-bound ref expansion The following guards the BIT_FIELD_REF expansion fallback for MEM_REFs of entities expanded to register (or constant) further, avoiding large out-of-bound offsets by, when the access does not overlap the base object, expanding the offset as if it were zero. PR middle-end/118692 * expr.cc (expand_expr_real_1): When expanding a MEM_REF as BIT_FIELD_REF avoid large offsets for accesses not overlapping the base object. * gcc.dg/pr118692.c: New testcase.