gcc/:
2012-01-19 Andrey Belevantsev <abel@ispras.ru>

	PR rtl-optimization/51505
	* df-problems.c (df_kill_notes): New parameter live. Update comment.
	Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
	(df_note_bb_compute): Update the call to df_kill_notes.

testsuite/:
2012-01-19 Andrey Belevantsev <abel@ispras.ru>

	PR rtl-optimization/51505
	* gcc.dg/pr51505.c: New test.

From-SVN: r183296