[Bug tree-optimization/51466] [4.7 Regression] ICE in gimple_rhs_has_side_effects,

[xguo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51466

--- Comment #7 from xuepeng guo <xguo at gcc dot gnu.org> 2012-06-11 09:51:11 
UTC ---
Author: xguo
Date: Mon Jun 11 09:51:05 2012
New Revision: 188383

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188383
Log:
2012-06-11  Terry Guo  <terry....@arm.com>

        Backport from mainline
        2011-12-08  Jakub Jelinek  <ja...@redhat.com>

        PR tree-optimization/51466
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Also copy
        TREE_SIDE_EFFECTS.

        2011-11-28  Jakub Jelinek  <ja...@redhat.com>

        PR tree-optimization/50078
        * tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Copy over
        TREE_THIS_VOLATILE also from the old to new lhs resp. rhs.

Added:
   
branches/ARM/embedded-4_6-branch/gcc/testsuite/gcc.c-torture/execute/pr51466.c
    branches/ARM/embedded-4_6-branch/gcc/testsuite/gcc.dg/pr50078.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-forwprop.c