[Bug tree-optimization/46172] [4.3/4.4/4.5/4.6 Regression] ICE: in expand_widen_pattern_expr, at optabs.c:522 with -ftree-vectorize -fno-tree-dce

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46172

--- Comment #9 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-18 
15:17:43 UTC ---
Author: rguenth
Date: Thu Nov 18 15:17:37 2010
New Revision: 166908

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166908
Log:
2010-11-18  Richard Guenther  <rguent...@suse.de>

    PR tree-optimization/46172
    * tree-vect-loop-manip.c (remove_dead_stmts_from_loop): New
    function.
    (slpeel_tree_peel_loop_to_edge): Call it.

    * gcc.dg/torture/pr46172.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/torture/pr46172.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop-manip.c