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From: "law at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/15184] [4.8/4.9/5 Regression] Direct access to byte inside word not working with -march=pentiumpro
Date: Thu, 29 Jan 2015 14:31:00 -0000	[thread overview]
Message-ID: <bug-15184-4-Bm8VhE7Fe3@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-15184-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=15184

--- Comment #32 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Thu Jan 29 14:30:45 2015
New Revision: 220249

URL: https://gcc.gnu.org/viewcvs?rev=220249&root=gcc&view=rev
Log:
    PR target/15184
    * combine.c (try_combine): If I0 is a memory load and I3 a store
    to a related address, increase the "goodness" of doing a 4-insn
    combination with I0-I3.
    (make_field_assignment): Handle SUBREGs in the ior+and case.

    PR target/15184
    * gcc.target/i386/pr15184-1.c: New test.
    * gcc.target/i386/pr15184-2.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr15184-1.c
    trunk/gcc/testsuite/gcc.target/i386/pr15184-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/testsuite/ChangeLog


  parent reply	other threads:[~2015-01-29 14:31 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-15184-4@http.gcc.gnu.org/bugzilla/>
2011-06-27 13:56 ` [Bug target/15184] [4.3/4.4/4.5/4.6/4.7 " rguenth at gcc dot gnu.org
2012-03-13 13:45 ` [Bug target/15184] [4.5/4.6/4.7/4.8 " jakub at gcc dot gnu.org
2012-07-02 13:35 ` [Bug target/15184] [4.6/4.7/4.8 " rguenth at gcc dot gnu.org
2012-11-09 22:32 ` steven at gcc dot gnu.org
2012-11-10 12:15 ` ubizjak at gmail dot com
2012-11-10 13:37 ` mikpe at it dot uu.se
2012-11-11 21:24 ` steven at gcc dot gnu.org
2012-12-03 15:19 ` rguenth at gcc dot gnu.org
2013-01-15 14:31 ` rguenth at gcc dot gnu.org
2013-04-12 15:16 ` [Bug target/15184] [4.7/4.8/4.9 " jakub at gcc dot gnu.org
2014-06-12 13:43 ` [Bug target/15184] [4.7/4.8/4.9/4.10 " rguenth at gcc dot gnu.org
2014-12-19 13:36 ` [Bug target/15184] [4.8/4.9/5 " jakub at gcc dot gnu.org
2015-01-15 14:55 ` rguenth at gcc dot gnu.org
2015-01-22 23:34 ` law at redhat dot com
2015-01-26 19:14 ` law at redhat dot com
2015-01-27  1:32 ` thopre01 at gcc dot gnu.org
2015-01-29 14:31 ` law at gcc dot gnu.org [this message]
2015-01-29 14:34 ` [Bug target/15184] [4.8/4.9 " law at redhat dot com
2015-01-30 10:54 ` uros at gcc dot gnu.org

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