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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/46279] cmov not hoisted out of the loop
Date: Tue, 02 Nov 2010 21:33:00 -0000	[thread overview]
Message-ID: <20101102213300.xq_sH0aYfd3cJ5fpYrPED8eAHv1PTFEpMWkozud-tCg@z> (raw)
In-Reply-To: <bug-46279-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46279

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2010-11-02 21:33:18 UTC ---
Though -O3 generates much larger code.  What needs to be done is that one thing
really:
      if (j < k)
        a[i] = 1;
      else
        a[i] = j;

Needs to be transformed into:
      if (j < k)
        tmp = 1;
      else
        tmp = j;
      a[i] = tmp;

And then it should work correctly.  I think there is already a bug about that.


  parent reply	other threads:[~2010-11-02 21:33 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-02 21:28 [Bug rtl-optimization/46279] New: " davidxl at gcc dot gnu.org
2010-11-02 21:31 ` [Bug rtl-optimization/46279] " pinskia at gcc dot gnu.org
2010-11-02 21:33 ` pinskia at gcc dot gnu.org [this message]
2010-11-02 21:33 ` xinliangli at gmail dot com
2010-11-02 21:45 ` jakub at gcc dot gnu.org
2010-11-02 21:46 ` pinskia at gcc dot gnu.org
2010-11-03 10:58 ` rguenth at gcc dot gnu.org
2021-07-20  0:45 ` pinskia at gcc dot gnu.org
2022-11-11  9:32 ` tnfchris at gcc dot gnu.org

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