[Bug debug/49602] [4.7 Regression] verify_ssa failed (definition does not dominate use) with "-O2 -g"

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49602

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-07-04 17:19:54 UTC ---
Author: jakub
Date: Mon Jul  4 17:19:52 2011
New Revision: 175818

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175818
Log:
    PR debug/49602
    * tree-into-ssa.c (rewrite_debug_stmt_uses): Disregard
    get_current_def return value if it can't be trusted to be
    the current value of the variable in the current bb.

    * gcc.dg/pr49602.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr49602.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-into-ssa.c