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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/107137] (unsigned)-(int)(bool_var) should be optimized to -(unsigned)bool_var
Date: Tue, 05 Sep 2023 21:16:17 +0000	[thread overview]
Message-ID: <bug-107137-4-eiCWSp4We2@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-107137-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107137

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Andrew Pinski <pinskia@gcc.gnu.org>:

https://gcc.gnu.org/g:e6bcf83989478348428c732c11e6c0f1719e9214

commit r14-3721-ge6bcf83989478348428c732c11e6c0f1719e9214
Author: Andrew Pinski <apinski@marvell.com>
Date:   Thu Aug 31 16:17:35 2023 -0700

    MATCH: `(nop_convert)-(convert)a` into -(convert)a if we are converting
from something smaller

    This allows removal of one conversion and in the case of booleans, might be
able to remove
    the negate and the other conversion later on.

    OK? Bootstrapped and tested on x86_64-linux-gnu with no regressions.

            PR tree-optimization/107137

    gcc/ChangeLog:

            * match.pd (`(nop_convert)-(convert)a`): New pattern.

    gcc/testsuite/ChangeLog:

            * gcc.dg/tree-ssa/neg-cast-2.c: New test.
            * gcc.dg/tree-ssa/neg-cast-3.c: New test.

  parent reply	other threads:[~2023-09-05 21:16 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-03 19:40 [Bug tree-optimization/107137] New: " pinskia at gcc dot gnu.org
2022-10-06 10:02 ` [Bug tree-optimization/107137] " rguenth at gcc dot gnu.org
2022-11-26 20:45 ` pinskia at gcc dot gnu.org
2023-08-31 18:34 ` pinskia at gcc dot gnu.org
2023-09-01  2:27 ` pinskia at gcc dot gnu.org
2023-09-01 16:26 ` pinskia at gcc dot gnu.org
2023-09-02  7:01 ` pinskia at gcc dot gnu.org
2023-09-05 21:16 ` cvs-commit at gcc dot gnu.org [this message]
2023-09-05 21:16 ` pinskia at gcc dot gnu.org

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