basic-block.h (PROP_EQUAL_NOTES): Remove.

	* basic-block.h (PROP_EQUAL_NOTES): Remove.
	* flow.c (propagate_one_insn): Don't use PROP_EQUAL_NOTES.

From-SVN: r98193

gcc/ChangeLog

+2005-04-15  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* basic-block.h (PROP_EQUAL_NOTES): Remove.
+	* flow.c (propagate_one_insn): Don't use PROP_EQUAL_NOTES.
+
 2005-04-15  Andrew MacLeod  <amacleod@redhat.com>
 
 	* tree-vect-analyze.c (vect_stmt_relevant_p): Process immediate uses 

gcc/basic-block.h

@@ -780,7 +780,6 @@ enum update_life_extent
 #define PROP_ALLOW_CFG_CHANGES	32	/* Allow the CFG to be changed
 					   by dead code removal.  */
 #define PROP_AUTOINC		64	/* Create autoinc mem references.  */
-#define PROP_EQUAL_NOTES	128	/* Take into account REG_EQUAL notes.  */
 #define PROP_SCAN_DEAD_STORES	256	/* Scan for dead code.  */
 #define PROP_ASM_SCAN		512	/* Internal flag used within flow.c
 					   to flag analysis of asms.  */

gcc/flow.c

@@ -1798,7 +1798,6 @@ propagate_one_insn (struct propagate_block_info *pbi, rtx insn)
     }
   else
     {
-      rtx note;
       /* Any regs live at the time of a call instruction must not go
 	 in a register clobbered by calls.  Find all regs now live and
 	 record this for them.  */
@@ -1873,10 +1872,6 @@ propagate_one_insn (struct propagate_block_info *pbi, rtx insn)
       /* Record uses.  */
       if (! insn_is_dead)
 	mark_used_regs (pbi, PATTERN (insn), NULL_RTX, insn);
-      if ((flags & PROP_EQUAL_NOTES)
-	  && ((note = find_reg_note (insn, REG_EQUAL, NULL_RTX))
-	      || (note = find_reg_note (insn, REG_EQUIV, NULL_RTX))))
-	mark_used_regs (pbi, XEXP (note, 0), NULL_RTX, insn);
 
       /* Sometimes we may have inserted something before INSN (such as a move)
 	 when we make an auto-inc.  So ensure we will scan those insns.  */