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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/113915] [14 regression] glibc's _dl_find_object_update_1
  miscompiled for armv7a since r14-4365-g0731889c026bfe
Date: Wed, 06 Mar 2024 17:42:21 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113915

--- Comment #14 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Wilco Dijkstra <wilco@gcc.gnu.org>:

https://gcc.gnu.org/g:b575f37a342cebb954aa85fa45df0604bfa1ada9

commit r14-9343-gb575f37a342cebb954aa85fa45df0604bfa1ada9
Author: Wilco Dijkstra <wilco.dijkstra@arm.com>
Date:   Wed Mar 6 17:35:16 2024 +0000

    ARM: Fix conditional execution [PR113915]

    By default most patterns can be conditionalized on Arm targets.  However
    Thumb-2 predication requires the "predicable" attribute be explicitly
    set to "yes".  Most patterns are shared between Arm and Thumb(-2) and a=
re
    marked with "predicable".  Given this sharing, it does not make sense to
    use a different default for Arm.  So only consider conditional execution
    of instructions that have the predicable attribute set to yes.  This
ensures
    that patterns not explicitly marked as such are never conditionally
executed.

    gcc/ChangeLog:
            PR target/113915
            * config/arm/arm.md (NOCOND): Improve comment.
            (arm_rev*) Add predicable.
            * config/arm/arm.cc (arm_final_prescan_insn): Add check for
            PREDICABLE_YES.

    gcc/testsuite/ChangeLog:
            PR target/113915
            * gcc.target/arm/builtin-bswap-1.c: Fix test to allow condition=
al
            execution both for Arm and Thumb-2.=