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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug testsuite/111228] [14 regression]
 gcc.target/powerpc/vsx-extract-6.c fails after r14-3381-g27de9aa152141e
Date: Wed, 30 Aug 2023 11:55:21 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111228

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:caa7a99a052929d5970677c5b639e1fa5166e334

commit r14-3571-gcaa7a99a052929d5970677c5b639e1fa5166e334
Author: Richard Biener <rguenther@suse.de>
Date:   Wed Aug 30 11:57:47 2023 +0200

    tree-optimization/111228 - combine two VEC_PERM_EXPRs

    The following adds simplification of two VEC_PERM_EXPRs where
    the later one replaces all elements from either the first or the
    second input of the earlier permute.  This allows a three input
    permute to be simplified to a two input one.

    I'm following the existing two input simplification case and only
    allow non-VLA permutes.  The now existing three cases and the
    single case in tree-ssa-forwprop.cc somehow ask for merging,
    I'm not doing this as part of this change though.

            PR tree-optimization/111228
            * match.pd ((vec_perm (vec_perm ..) @5 ..) -> (vec_perm @x @5 .=
.)):
            New simplifications.

            * gcc.dg/tree-ssa/forwprop-42.c: New testcase.=