re PR rtl-optimization/45162 (ARM bootstrap comparison failures after stage 3)

	PR rtl-optimization/45162
	* df-problems.c (df_word_lr_bb_local_compute): Ignore DEBUG_INSNs.
	* dce.c (word_dce_process_block): Likewise.

From-SVN: r162881

gcc/ChangeLog

+2010-08-04  Bernd Schmidt  <bernds@codesourcery.com>
+
+	PR rtl-optimization/45162
+	* df-problems.c (df_word_lr_bb_local_compute): Ignore DEBUG_INSNs.
+	* dce.c (word_dce_process_block): Likewise.
+
 2010-08-04  Steve Ellcey  <sje@cup.hp.com>
 
 	PR target/44583

gcc/dce.c

@@ -795,7 +795,7 @@ word_dce_process_block (basic_block bb, bool redo_out)
   bitmap_copy (local_live, DF_WORD_LR_OUT (bb));
 
   FOR_BB_INSNS_REVERSE (bb, insn)
-    if (INSN_P (insn))
+    if (NONDEBUG_INSN_P (insn))
       {
 	bool any_changed;
 	/* No matter if the instruction is needed or not, we remove

gcc/df-problems.c

@@ -2472,7 +2472,7 @@ df_word_lr_bb_local_compute (unsigned int bb_index)
     {
       unsigned int uid = INSN_UID (insn);
 
-      if (!INSN_P (insn))
+      if (!NONDEBUG_INSN_P (insn))
 	continue;
       for (def_rec = DF_INSN_UID_DEFS (uid); *def_rec; def_rec++)
 	{