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Subject: [Bug tree-optimization/96573] [10/11 Regression] Regression in
 optimization on x86-64 with -O3
Date: Thu, 01 Apr 2021 08:52:14 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96573

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

https://gcc.gnu.org/g:5b9a65ecbeb22ef6dd3344baae97f85b645522e3

commit r11-7946-g5b9a65ecbeb22ef6dd3344baae97f85b645522e3
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Thu Apr 1 10:51:03 2021 +0200

    bswap: Handle bswapping of pointers [PR96573]

    In GCC8/9 we used to optimize this into a bswap, but we no longer do.
    Handling byteswapping of pointers is easy, all we need is to allow them,
    for the __builtin_bswap* we already use TYPE_PRECISION to determine
    the precision and we cast the operand and result to the correct type
    if they aren't uselessly convertible to what the builtin expects.

    2021-04-01  Jakub Jelinek  <jakub@redhat.com>

            PR tree-optimization/96573
            * gimple-ssa-store-merging.c (init_symbolic_number): Handle
            also pointer types.

            * gcc.dg/pr96573.c: New test.=