[Bug tree-optimization/105175] [12 Regression] Pointless warning about missed vector optimization

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105175

--- Comment #5 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:b789c44c6463452900f7b1e6d2a0af6567534bfc

commit r12-8054-gb789c44c6463452900f7b1e6d2a0af6567534bfc
Author: Richard Biener <rguenther@suse.de>
Date:   Wed Apr 6 11:18:12 2022 +0200

    tree-optimization/105175 - avoid -Wvector-operation-performance

    This avoids -Wvector-operation-performance diagnostics for vectorizer
    produced code.  It's unfortunate the warning_at code in
    tree-vect-generic.cc needs adjustments but the diagnostic suppression
    code doesn't magically suppress those otherwise.

    2022-04-06  Richard Biener  <rguenther@suse.de>

            PR tree-optimization/105175
            * tree-vect-stmts.cc (vectorizable_operation): Suppress
            -Wvector-operation-performance if using emulated vectors.
            * tree-vect-generic.cc (expand_vector_piecewise): Do not diagnose
            -Wvector-operation-performance when suppressed.
            (expand_vector_parallel): Likewise.
            (expand_vector_comparison): Likewise.
            (expand_vector_condition): Likewise.
            (lower_vec_perm): Likewise.
            (expand_vector_conversion): Likewise.

            * gcc.dg/pr105175.c: New testcase.