[Bug tree-optimization/103351] [12 Regression] '-fcompare-debug' failure (length) at -O2 since r12-5301-g045206450386bcd7

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103351

--- Comment #6 from CVS 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:f456eaf2e0fb3ceb51c641fd348429bf59d215a9

commit r12-5447-gf456eaf2e0fb3ceb51c641fd348429bf59d215a9
Author: Richard Biener <rguent...@suse.de>
Date:   Mon Nov 22 11:23:55 2021 +0100

    tree-optimization/103351 - avoid compare-debug issue wrt CD-DCE change

    This avoids differences in the split edge of a cluster due to different
    order of same key PHI args when sorting by sorting after the edge
    destination index as second key.

    2021-11-22  Richard Biener  <rguent...@suse.de>

            PR tree-optimization/103351
            * tree-ssa-dce.c (sort_phi_args): Sort after e->dest_idx as
            second key.

            * g++.dg/torture/pr103351.C: New testcase.