2009-05-31  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/40304
	* recog.c (peephole2_optimize): When seeing a RTX_FRAME_RELATED_P
	insn, reinitialize peep2_insn_data and peep2_current in addition
	to clearing peep2_current_count.

--- gcc/recog.c.jj	2009-05-19 10:51:33.000000000 +0200
+++ gcc/recog.c	2009-05-30 21:23:44.000000000 +0200
@@ -3118,7 +3118,13 @@ peephole2_optimize (void)
 		  /* If an insn has RTX_FRAME_RELATED_P set, peephole
 		     substitution would lose the
 		     REG_FRAME_RELATED_EXPR that is attached.  */
+		  for (i = 0; i < MAX_INSNS_PER_PEEP2; ++i)
+		    peep2_insn_data[i].insn = NULL_RTX;
 		  peep2_current_count = 0;
+		  peep2_insn_data[MAX_INSNS_PER_PEEP2].insn = PEEP2_EOB;
+		  peep2_current = MAX_INSNS_PER_PEEP2;
+		  bitmap_copy (peep2_insn_data[peep2_current].live_before,
+			       live);
 		  attempt = NULL;
 		}
 	      else