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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/108752] word_mode vectorization is pessimized
 by hard limit on nunits
Date: Fri, 28 Apr 2023 09:07:32 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108752

--- 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:821ef93976e750c118d42a2ad33b96dbd1b9f3a5

commit r14-322-g821ef93976e750c118d42a2ad33b96dbd1b9f3a5
Author: Richard Biener <rguenther@suse.de>
Date:   Fri Feb 10 13:09:10 2023 +0100

    tree-optimization/108752 - vectorize emulated vectors in lowered form

    The following makes sure to emit operations lowered to bit operations
    when vectorizing using emulated vectors.  This avoids relying on
    the vector lowering pass adhering to the exact same cost considerations
    as the vectorizer.

            PR tree-optimization/108752
            * tree-vect-generic.cc (build_replicated_const): Rename
            to build_replicated_int_cst and move to tree.{h,cc}.
            (do_plus_minus): Adjust.
            (do_negate): Likewise.
            * tree-vect-stmts.cc (vectorizable_operation): Emit emulated
            arithmetic vector operations in lowered form.
            * tree.h (build_replicated_int_cst): Declare.
            * tree.cc (build_replicated_int_cst): Moved from
            tree-vect-generic.cc build_replicated_const.=