https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109491
--- Comment #19 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-11 branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:bb400f9916beab1a650d59c73672ef48aaf71b11 commit r11-10629-gbb400f9916beab1a650d59c73672ef48aaf71b11 Author: Richard Biener <rguent...@suse.de> Date: Thu Apr 13 14:09:30 2023 +0200 tree-optimization/109491 - ICE in expressions_equal_p At some point I elided the NULL pointer check in expressions_equal_p because it shouldn't be necessary not realizing that for example TARGET_MEM_REF has optional operands we cannot substitute with something non-NULL with the same semantics. The following does the simple thing and restore the check removed in r11-4982. PR tree-optimization/109491 * tree-ssa-sccvn.c (expressions_equal_p): Restore the NULL operands test. (cherry picked from commit a37783de23c067d6a26374ff29c014e49604035c)
