[Bug tree-optimization/25290] PHI-OPT could be rewritten so that is uses match

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25290

--- Comment #17 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Andrew Pinski <pins...@gcc.gnu.org>:

https://gcc.gnu.org/g:9f55df63154a39d67ef5b24def7044bf87300831

commit r12-1152-g9f55df63154a39d67ef5b24def7044bf87300831
Author: Andrew Pinski <apin...@marvell.com>
Date:   Tue Jun 1 01:05:09 2021 +0000

    Replace conditional_replacement with match and simplify

    This is the first of series of patches to simplify phi-opt
    to use match and simplify in many cases.  This simplification
    will more things to optimize.

    This is what Richard requested in
    https://gcc.gnu.org/pipermail/gcc-patches/2021-May/571197.html
    and I think it is the right thing to do too.

    OK? Bootstrapped and tested on x86_64-linux-gnu with no regressions.

    gcc/ChangeLog:

            PR tree-optimization/25290
            * tree-ssa-phiopt.c (match_simplify_replacement):
            New function.
            (tree_ssa_phiopt_worker): Use match_simplify_replacement.
            (two_value_replacement): Change the comment about
            conditional_replacement.
            (conditional_replacement): Delete.