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

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 866a6d6869f1c058c5f445914e4881d63845c8bb..e4b982a846353c085f50c4dc87be253ed61f13d0 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+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.

diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index dd2e3e39cd20770c0b443333f3a3d29cabfef305..792323453ec0e696719d16ef90b1c7d8094e09f7 100644 (file)
--- a/gcc/config/mips/mips.c
+++ b/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)