[Bug debug/49496] [4.7 Regression] -fcompare-debug failure (length) with -O -ftree-vectorize

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49496

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-06-22 
20:37:58 UTC ---
Author: jakub
Date: Wed Jun 22 20:37:54 2011
New Revision: 175314

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175314
Log:
    PR debug/49496
    * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Ignore debug
    uses.

    * gcc.dg/pr49496.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr49496.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-patterns.c