[Bug tree-optimization/51042] [4.5 Regression] endless recursion in phi_translate

[liujiangning at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51042

--- Comment #9 from Jiangning Liu <liujiangning at gcc dot gnu.org> 2012-06-12 09:53:57 UTC ---
Author: liujiangning
Date: Tue Jun 12 09:53:53 2012
New Revision: 188433

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188433
Log:
2011-06-12  Jiangning Liu  <jiangning.liu@arm.com>                              

    Backport r181256 from mainline
    2011-11-10  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/51042
    * tree-ssa-pre.c (phi_translate_1): Avoid recursing on
    self-referential expressions.  Refactor code to avoid duplication.

2011-06-12  Jiangning Liu  <jiangning.liu@arm.com>                              

    Backport r181256 from mainline
    2011-11-10  Richard Guenther  <rguenther@suse.de>


Added:
    branches/ARM/embedded-4_6-branch/gcc/testsuite/gcc.dg/torture/pr51042.c
Modified:
    branches/ARM/embedded-4_6-branch/gcc/ChangeLog.arm
    branches/ARM/embedded-4_6-branch/gcc/testsuite/ChangeLog.arm
    branches/ARM/embedded-4_6-branch/gcc/tree-ssa-pre.c