mips.c (print_operand): Extend '%D' to memory operands.

	* config/mips/mips.c (print_operand): Extend '%D' to memory operands.
	(mips_move_2words): When splitting a move into two instructions,
	prefix the second address operand with '%D'.

From-SVN: r43964

gcc/ChangeLog

+2001-07-06  Richard Sandiford  <rsandifo@redhat.com>
+
+	* config/mips/mips.c (print_operand): Extend '%D' to memory operands.
+	(mips_move_2words): When splitting a move into two instructions,
+	prefix the second address operand with '%D'.
+
 2001-07-12  Neil Booth  <neil@daikokuya.demon.co.uk>
 
 	* Makefile.in (final.o): Depend on debug.h.

gcc/config/mips/mips.c

@@ -2548,12 +2548,9 @@ mips_move_2words (operands, insn)
 	    }
 
 	  else if (double_memory_operand (op1, GET_MODE (op1)))
-	    {
-	      operands[2] = adjust_address (op1, SImode, 4);
-	      ret = (reg_mentioned_p (op0, op1)
-		     ? "lw\t%D0,%2\n\tlw\t%0,%1"
-		     : "lw\t%0,%1\n\tlw\t%D0,%2");
-	    }
+	    ret = (reg_mentioned_p (op0, op1)
+		   ? "lw\t%D0,%D1\n\tlw\t%0,%1"
+		   : "lw\t%0,%1\n\tlw\t%D0,%D1");
 
 	  if (ret != 0 && MEM_VOLATILE_P (op1))
 	    {
@@ -2642,10 +2639,7 @@ mips_move_2words (operands, insn)
 	    }
 
 	  else if (double_memory_operand (op0, GET_MODE (op0)))
-	    {
-	      operands[2] = adjust_address (op0, SImode, 4);
-	      ret = "sw\t%1,%0\n\tsw\t%D1,%2";
-	    }
+	    ret = "sw\t%1,%0\n\tsw\t%D1,%D0";
 	}
 
       else if (((code1 == CONST_INT && INTVAL (op1) == 0)
@@ -2657,10 +2651,7 @@ mips_move_2words (operands, insn)
 	  if (TARGET_64BIT)
 	    ret = "sd\t%.,%0";
 	  else
-	    {
-	      operands[2] = adjust_address (op0, SImode, 4);
-	      ret = "sw\t%.,%0\n\tsw\t%.,%2";
-	    }
+	    ret = "sw\t%.,%0\n\tsw\t%.,%D0";
 	}
 
       if (TARGET_STATS)
@@ -5280,7 +5271,7 @@ mips_debugger_offset (addr, offset)
    'x'  X is CONST_INT, prints 16 bits in hexadecimal format = "0x%04x",
    'd'  output integer constant in decimal,
    'z'	if the operand is 0, use $0 instead of normal operand.
-   'D'  print second register of double-word register operand.
+   'D'  print second part of double-word register or memory operand.
    'L'  print low-order register of double-word register operand.
    'M'  print high-order register of double-word register operand.
    'C'  print part of opcode for a branch condition.
@@ -5551,7 +5542,12 @@ print_operand (file, op, letter)
     }
 
   else if (code == MEM)
-    output_address (XEXP (op, 0));
+    {
+      if (letter == 'D')
+	output_address (plus_constant (XEXP (op, 0), 4));
+      else
+	output_address (XEXP (op, 0));
+    }
 
   else if (code == CONST_DOUBLE
 	   && GET_MODE_CLASS (GET_MODE (op)) == MODE_FLOAT)