[Bug tree-optimization/114736] [13 Regression] ICE during SLP pass with gfortran-13 -O3 -mcpu=neoverse-v2

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114736

--- Comment #12 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-13 branch has been updated by Richard Biener
<rgue...@gcc.gnu.org>:

https://gcc.gnu.org/g:0624852a3ea684f6b9dabea864bcb45e31304728

commit r13-8683-g0624852a3ea684f6b9dabea864bcb45e31304728
Author: Richard Biener <rguent...@suse.de>
Date:   Tue Apr 16 11:33:48 2024 +0200

    tree-optimization/114736 - SLP DFS walk issue

    The following fixes a DFS walk issue when identifying to be ignored
    latch edges.  We have (bogus) SLP_TREE_REPRESENTATIVEs for VEC_PERM
    nodes so those have to be explicitly ignored as possibly being PHIs.

            PR tree-optimization/114736
            * tree-vect-slp.cc (vect_optimize_slp_pass::is_cfg_latch_edge):
            Do not consider VEC_PERM_EXPRs as PHI use.

            * gfortran.dg/vect/pr114736.f90: New testcase.

    (cherry picked from commit f949481a1f7ab973608a4ffcc0e342ab5a74e8e4)