r175987 - in /trunk/gcc: ChangeLog df-problems....

[jakub@gcc.gnu.org]

Author: jakub
Date: Thu Jul  7 16:05:55 2011
New Revision: 175987

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175987
Log:
	PR debug/49522
	* df-problems.c (dead_debug_reset): Remove dead_debug_uses
	referencing debug insns that have been reset.
	(dead_debug_insert_before): Don't assert reg is non-NULL,
	instead return immediately if it is NULL.

	* gcc.dg/debug/pr49522.c: New test.


M    gcc/ChangeLog
A    gcc/testsuite/gcc.dg/debug/pr49522.c
M    gcc/testsuite/ChangeLog
M    gcc/df-problems.c

Added:
    trunk/gcc/testsuite/gcc.dg/debug/pr49522.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/df-problems.c
    trunk/gcc/testsuite/ChangeLog