re PR bootstrap/41349 (bootstrap comparison failure on sparc-linux)

	PR bootstrap/41349
	* reorg.c (redundant_insn): Don't count notes or DEBUG_INSNs when
	trying to limit the extent of searches in the insn stream.

From-SVN: r151731

gcc/ChangeLog

+2009-09-15  Adam Nemet  <anemet@caviumnetworks.com>
+
+	PR bootstrap/41349
+	* reorg.c (redundant_insn): Don't count notes or DEBUG_INSNs when
+	trying to limit the extent of searches in the insn stream.
+
 2009-09-15  Nathan Froyd  <froydnj@codesourcery.com>
 	    Jakub Jelinek  <jakub@redhat.com>
 

gcc/reorg.c

@@ -1630,13 +1630,14 @@ redundant_insn (rtx insn, rtx target, rtx delay_list)
   for (trial = PREV_INSN (target),
 	 insns_to_search = MAX_DELAY_SLOT_INSN_SEARCH;
        trial && insns_to_search > 0;
-       trial = PREV_INSN (trial), --insns_to_search)
+       trial = PREV_INSN (trial))
     {
       if (LABEL_P (trial))
 	return 0;
 
-      if (! INSN_P (trial))
+      if (!NONDEBUG_INSN_P (trial))
 	continue;
+      --insns_to_search;
 
       pat = PATTERN (trial);
       if (GET_CODE (pat) == USE || GET_CODE (pat) == CLOBBER)
@@ -1735,10 +1736,11 @@ redundant_insn (rtx insn, rtx target, rtx delay_list)
   for (trial = PREV_INSN (target),
 	 insns_to_search = MAX_DELAY_SLOT_INSN_SEARCH;
        trial && !LABEL_P (trial) && insns_to_search > 0;
-       trial = PREV_INSN (trial), --insns_to_search)
+       trial = PREV_INSN (trial))
     {
-      if (!INSN_P (trial))
+      if (!NONDEBUG_INSN_P (trial))
 	continue;
+      --insns_to_search;
 
       pat = PATTERN (trial);
       if (GET_CODE (pat) == USE || GET_CODE (pat) == CLOBBER)