[Bug tree-optimization/49539] [4.7 regression] ICE building gnattools

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49539

--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-06-29 16:04:51 UTC ---
Author: ebotcazou
Date: Wed Jun 29 16:04:47 2011
New Revision: 175651

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175651
Log:
    PR tree-optimization/49539
    * tree-ssa-forwprop.c (can_propagate_from): Check for abnormal SSA
    names by means of stmt_references_abnormal_ssa_name.
    (associate_plusminus): Call can_propagate_from before propagating
    from definition statements.

Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/tree-ssa-forwprop.c