reload.c (find_reloads_address_1): Generate reloads for auto_inc pseudos that…

reload.c (find_reloads_address_1): Generate reloads for auto_inc pseudos that refer to the original pseudos...

* reload.c (find_reloads_address_1): Generate reloads for auto_inc
pseudos that refer to the original pseudos, not only to their
equivalent memory locations.

From-SVN: r36413

gcc/ChangeLog

+2000-09-14  Alexandre Oliva  <aoliva@redhat.com>, Bernd Schmidt  <bernds@redhat.co.uk>
+
+	* reload.c (find_reloads_address_1): Generate reloads for auto_inc
+	pseudos that refer to the original pseudos, not only to their
+	equivalent memory locations.
+
 Thu Sep 14 12:10:16 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
 
 	* expr.c (expand_expr, case COMPONENT_EXPR): Copy memory attributes

gcc/reload.c

@@ -5276,21 +5276,18 @@ find_reloads_address_1 (mode, x, context, loc, opnum, type, ind_levels, insn)
 			&& ((*insn_data[icode].operand[1].predicate)
 			    (equiv, Pmode))))
 		{
-		  loc = &XEXP (x, 0);
+		  /* We use the original pseudo for loc, so that
+		     emit_reload_insns() knows which pseudo this
+		     reload refers to and updates the pseudo rtx, not
+		     its equivalent memory location, as well as the
+		     corresponding entry in reg_last_reload_reg.  */
+		  loc = &XEXP (x_orig, 0);
 		  x = XEXP (x, 0);
 		  reloadnum
 		    = push_reload (x, x, loc, loc,
 				   (context ? INDEX_REG_CLASS : BASE_REG_CLASS),
 				   GET_MODE (x), GET_MODE (x), 0, 0,
 				   opnum, RELOAD_OTHER);
-
-		  /* If we created a new MEM based on reg_equiv_mem[REGNO], then
-		     LOC above is part of the new MEM, not the MEM in INSN.
-
-		     We must also replace the address of the MEM in INSN.  */
-		  if (&XEXP (x_orig, 0) != loc)
-		    push_replacement (&XEXP (x_orig, 0), reloadnum, VOIDmode);
-
 		}
 	      else
 		{