[Bug tree-optimization/47677] [4.6 Regression] Hang in VRP

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47677

--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-02-10 
15:28:10 UTC ---
Author: rguenth
Date: Thu Feb 10 15:28:07 2011
New Revision: 170002

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=170002
Log:
2011-02-10  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/47677
    * tree-vrp.c (vrp_bitmap_equal_p): Fix comparison of empty bitmaps.

    * gcc.dg/torture/pr47677.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr47677.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c