re PR target/23832 (libjava build failure on sh64)

	PR target/23832
	* recog.c (peephole2_optimize): Increment peep2_current_count
	only when the slot is empty.

From-SVN: r105827

gcc/ChangeLog

+2005-10-23  Kaz Kojima  <kkojima@gcc.gnu.org>
+
+	PR target/23832
+	* recog.c (peephole2_optimize): Increment peep2_current_count
+	only when the slot is empty.
+
 2005-10-23  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 
 	PR ada/23957

gcc/recog.c

@@ -3091,7 +3091,8 @@ peephole2_optimize (FILE *dump_file ATTRIBUTE_UNUSED)
 	      /* Record this insn.  */
 	      if (--peep2_current < 0)
 		peep2_current = MAX_INSNS_PER_PEEP2;
-	      if (peep2_current_count < MAX_INSNS_PER_PEEP2)
+	      if (peep2_current_count < MAX_INSNS_PER_PEEP2
+		  && peep2_insn_data[peep2_current].insn == NULL_RTX)
 		peep2_current_count++;
 	      peep2_insn_data[peep2_current].insn = insn;
 	      propagate_one_insn (pbi, insn);
@@ -3253,7 +3254,8 @@ peephole2_optimize (FILE *dump_file ATTRIBUTE_UNUSED)
 			{
 			  if (--i < 0)
 			    i = MAX_INSNS_PER_PEEP2;
-			  if (peep2_current_count < MAX_INSNS_PER_PEEP2)
+			  if (peep2_current_count < MAX_INSNS_PER_PEEP2
+			      && peep2_insn_data[i].insn == NULL_RTX)
 			    peep2_current_count++;
 			  peep2_insn_data[i].insn = x;
 			  propagate_one_insn (pbi, x);