[Bug tree-optimization/57303] [4.7/4.8 Regression] struct miscompiled at -O1 and above

rguenth at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Tue May 21 08:38:00 GMT 2013


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57303

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |4.9.0
            Summary|[4.7/4.8/4.9 Regression]    |[4.7/4.8 Regression] struct
                   |struct miscompiled at -O1   |miscompiled at -O1 and
                   |and above                   |above

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue May 21 08:11:23 2013
New Revision: 199135

URL: http://gcc.gnu.org/viewcvs?rev=199135&root=gcc&view=rev
Log:
2013-05-21  Richard Biener  <rguenther@suse.de>

    PR tree-optimization/57303
    * tree-ssa-sink.c (statement_sink_location): Improve killing
    stmt detection and properly handle self-assignments.

    * gcc.dg/torture/pr57303.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr57303.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-sink.c



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