[Bug tree-optimization/66502] SCCVN can't handle PHIs optimistically optimally

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66502

--- Comment #7 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:cd83fd98a7e769ac7ded28377984f68238812a26

commit r12-6182-gcd83fd98a7e769ac7ded28377984f68238812a26
Author: Richard Biener <rguent...@suse.de>
Date:   Mon Jan 3 10:48:57 2022 +0100

    tree-optimization/66502 - add testcase

    This adds the second testcase which we now also handle eliminating
    a redundant PHI node.

    2022-01-03  Richard Biener  <rguent...@suse.de>

            PR tree-optimization/66502
            * gcc.dg/tree-ssa/ssa-fre-98.c: New testcase.