[Bug tree-optimization/52870] ICE during SLP pattern matching

[uweigand at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52870

--- Comment #3 from Ulrich Weigand <uweigand at gcc dot gnu.org> 2012-04-10 
10:56:17 UTC ---
Author: uweigand
Date: Tue Apr 10 10:56:11 2012
New Revision: 186272

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186272
Log:
    gcc/
    PR tree-optimization/52870
    * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Verify that
    presumed pattern statement is within the same loop or basic block.

    gcc/testsuite/
    PR tree-optimization/52870
    * gcc.dg/vect/pr52870.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr52870.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-patterns.c