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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/33512] Simple bitwise simplification missed
Date: Tue, 24 Apr 2012 07:06:00 -0000	[thread overview]
Message-ID: <bug-33512-4-KKnF090Cbz@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-33512-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33512

--- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-04-24 07:05:15 UTC ---
Author: pinskia
Date: Tue Apr 24 07:05:09 2012
New Revision: 186749

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186749
Log:

2012-04-24  Andrew Pinski  <apinski@cavium.com>

    PR tree-opt/33512
    * tree-ssa-forwprop.c (defcodefor_name): New function.
    (simplify_bitwise_binary): Use defcodefor_name instead of manually
    Simplify "( X | Y) & X" to X and "( X & Y) | X" to X.
    Simplify "(~X | Y) & X" to "X & Y" and
    "(~X & Y) | X" to "X | Y".

2012-04-24  Andrew Pinski  <apinski@cavium.com>

    PR tree-opt/33512
    * gcc.dg/tree-ssa/andor-3.c: New testcase.
    * gcc.dg/tree-ssa/andor-4.c: New testcase.
    * gcc.dg/tree-ssa/andor-5.c: New testcase.


Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/andor-3.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/andor-4.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/andor-5.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-forwprop.c


       reply	other threads:[~2012-04-24  7:06 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-33512-4@http.gcc.gnu.org/bugzilla/>
2012-04-24  7:06 ` pinskia at gcc dot gnu.org [this message]
2012-04-24  7:07 ` pinskia at gcc dot gnu.org
2012-04-24  7:39 ` ktietz at gcc dot gnu.org
2012-04-24  8:24 ` pinskia at gcc dot gnu.org
2012-04-24  8:31 ` ktietz at gcc dot gnu.org
2012-04-24  8:38 ` pinskia at gcc dot gnu.org
2012-04-24  8:57 ` pinskia at gcc dot gnu.org
2007-09-20 22:32 [Bug rtl-optimization/33512] New: " pinskia at gcc dot gnu dot org
2008-02-23 18:02 ` [Bug tree-optimization/33512] " pinskia at gcc dot gnu dot org
2008-04-04 21:20 ` janis at gcc dot gnu dot org
2008-04-04 21:22 ` pinskia at gcc dot gnu dot org
2008-07-15 14:54 ` pinskia at gcc dot gnu dot org
2008-11-23 18:46 ` pinskia at gcc dot gnu dot org
2010-07-02 19:52 ` bergner at gcc dot gnu dot org

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