[Bug debug/46771] [4.6 Regression] -fcompare-debug failure (length) with -O -ftree-vectorize

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46771

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-12-06 
19:29:41 UTC ---
Author: jakub
Date: Mon Dec  6 19:29:38 2010
New Revision: 167514

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167514
Log:
    PR debug/46771
    * reginfo.c (init_subregs_of_mode): Don't call find_subregs_of_mode
    on DEBUG_INSNs.

    * gcc.dg/pr46771.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr46771.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/reginfo.c
    trunk/gcc/testsuite/ChangeLog