[Bug tree-optimization/115197] [13/14/15 Regression] ICE on valid code at -O{1,2} with "-fno-tree-scev-cprop -ftree-pre -ftree-loop-distribute-patterns" on x86_64-linux-gnu: Segmentation fault

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115197

--- Comment #3 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:2b2476d4d18c92b8aba3567ebccd2100c2f7c258

commit r15-793-g2b2476d4d18c92b8aba3567ebccd2100c2f7c258
Author: Richard Biener <rguent...@suse.de>
Date:   Thu May 23 14:36:39 2024 +0200

    tree-optimization/115197 - fix ICE w/ constant in LC PHI and loop
distribution

    Forgot a check for an SSA name before trying to replace a PHI arg with
    its current definition.

            PR tree-optimization/115197
            * tree-loop-distribution.cc (copy_loop_before): Constant PHI
            args remain the same.

            * gcc.dg/pr115197.c: New testcase.