local-alloc.c (update_equiv_regs): Don't use copy_rtx on PATTERN.

2000-12-29  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* local-alloc.c (update_equiv_regs): Don't use copy_rtx on PATTERN.

*** local-alloc.c	2000/11/30 21:40:33	1.75
--- local-alloc.c	2000/12/29 13:10:59
*************** update_equiv_regs ()
*** 1141,1146 ****
  		  rtx new_insn;

! 		  new_insn = emit_insn_before (copy_rtx (PATTERN (equiv_insn)),
! 					       insn);
  		  REG_NOTES (PREV_INSN (insn)) = REG_NOTES (equiv_insn);
  		  REG_NOTES (equiv_insn) = 0;
--- 1141,1145 ----
  		  rtx new_insn;

! 		  new_insn = emit_insn_before (PATTERN (equiv_insn), insn);
  		  REG_NOTES (PREV_INSN (insn)) = REG_NOTES (equiv_insn);
  		  REG_NOTES (equiv_insn) = 0;

From-SVN: r38536

gcc/ChangeLog

 2000-12-29  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 
+	* local-alloc.c (update_equiv_regs): Don't use copy_rtx on PATTERN.
+
 	* toplev.c (main): Call xmalloc_set_program_name.
 	* gcc.c (main): Likewise.
 

gcc/local-alloc.c

@@ -1131,8 +1131,8 @@ update_equiv_regs ()
 		  NOTE_LINE_NUMBER (equiv_insn) = NOTE_INSN_DELETED;
 		  NOTE_SOURCE_FILE (equiv_insn) = 0;
 		  
-		  reg_equiv[regno].init_insns = 
-		    XEXP (reg_equiv[regno].init_insns, 1);
+		  reg_equiv[regno].init_insns
+		    = XEXP (reg_equiv[regno].init_insns, 1);
 		}
 	      /* Move the initialization of the register to just before
 		 INSN.  Update the flow information.  */
@@ -1140,8 +1140,7 @@ update_equiv_regs ()
 		{
 		  rtx new_insn;
 
-		  new_insn = emit_insn_before (copy_rtx (PATTERN (equiv_insn)),
-					       insn);
+		  new_insn = emit_insn_before (PATTERN (equiv_insn), insn);
 		  REG_NOTES (PREV_INSN (insn)) = REG_NOTES (equiv_insn);
 		  REG_NOTES (equiv_insn) = 0;