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From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/59880] ix86_avoid_lea_for_addr is buggy
Date: Sun, 19 Jan 2014 18:41:00 -0000	[thread overview]
Message-ID: <bug-59880-4-DqHESzSIEO@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-59880-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59880

--- Comment #6 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Jakub Jelinek from comment #5)
> Created attachment 31893 [details]
> gcc49-pr59880.patch
> 
> Untested fix.  The reason for the problem is that if it is just a
> (zero-extended SI->DI or normal) move from %r13, %rbp or (for k6 %esi), then
> decomposition sets parts.disp to const0_rtx and thus we count it as two
> parts, even when we wouldn't emit it as a lea insn originally.

True. However, can you put new test before costly call to
ix86_ok_to_clobber_flags and ix86_decompose_address?
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From: "glisse at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/54425] Rvalue/Lvalue overload resolution of templated function
Date: Sun, 19 Jan 2014 19:03:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idT425

Marc Glisse <glisse at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |glisse at gcc dot gnu.org
         Resolution|---                         |DUPLICATE

--- Comment #2 from Marc Glisse <glisse at gcc dot gnu.org> ---
Already fixed on trunk.

*** This bug has been marked as a duplicate of bug 57172 ***


  parent reply	other threads:[~2014-01-19 18:41 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-19 16:14 [Bug rtl-optimization/59880] New: Improve REE for implicit SI->DI zero-extend hjl.tools at gmail dot com
2014-01-19 17:09 ` [Bug rtl-optimization/59880] " jakub at gcc dot gnu.org
2014-01-19 17:34 ` [Bug rtl-optimization/59880] ix86_avoid_lea_for_addr is buggy hjl.tools at gmail dot com
2014-01-19 18:25 ` ubizjak at gmail dot com
2014-01-19 18:41 ` ubizjak at gmail dot com [this message]
2014-01-19 19:41 ` jakub at gcc dot gnu.org
2014-01-20  9:52 ` [Bug target/59880] " jakub at gcc dot gnu.org
2014-01-20  9:55 ` jakub at gcc dot gnu.org
2014-01-22 18:29 ` uros at gcc dot gnu.org
2014-01-22 19:58 ` uros at gcc dot gnu.org
2014-01-22 19:59 ` ubizjak at gmail dot com
2014-01-22 22:01 ` hjl at gcc dot gnu.org

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