[Bug tree-optimization/52210] [4.7 Regression] vect_model_simple_cost: reading uninitialised memory

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52210

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-14 
09:16:05 UTC ---
Author: jakub
Date: Tue Feb 14 09:16:01 2012
New Revision: 184201

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=184201
Log:
    PR tree-optimization/52210
    * tree-vect-slp.c (vect_get_and_check_slp_defs): Call
    vect_model_simple_cost with two entry vect_def_type array instead
    of an address of dt.

    * gcc.dg/pr52210.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr52210.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-slp.c