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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/109154] [13/14 regression] jump threading
 de-optimizes nested floating point comparisons
Date: Thu, 09 Nov 2023 14:20:10 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109154

--- Comment #76 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tamar Christina <tnfchris@gcc.gnu.org=
>:

https://gcc.gnu.org/g:f30ecd8050444fb902ab66b4600c590908861fdf

commit r14-5285-gf30ecd8050444fb902ab66b4600c590908861fdf
Author: Tamar Christina <tamar.christina@arm.com>
Date:   Thu Nov 9 14:00:20 2023 +0000

    ifcvt: Add support for conditional copysign

    This adds a masked variant of copysign.  Nothing very exciting just the
    general machinery to define and use a new masked IFN.

    Bootstrapped Regtested on aarch64-none-linux-gnu and no issues.

    Note: This patch is part of a testseries and tests for it are added in =
the
    AArch64 patch that adds supports for the optab.

    gcc/ChangeLog:

            PR tree-optimization/109154
            * internal-fn.def (COPYSIGN): New.
            * match.pd (UNCOND_BINARY, COND_BINARY): Map IFN_COPYSIGN to
            IFN_COND_COPYSIGN.
            * optabs.def (cond_copysign_optab, cond_len_copysign_optab): Ne=
w.=