(addsi3,ashlsi3): Handle the case where the stack pointer appears as an

index reg.

From-SVN: r2140

gcc/config/i386/i386.md

@@ -1392,8 +1392,20 @@
       if (! TARGET_486 || ! REG_P (operands[2]))
         {
 	  CC_STATUS_INIT;
-	  operands[1] = SET_SRC (PATTERN (insn));
-	  return AS2 (lea%L0,%a1,%0);
+
+	  if (operands[2] == stack_pointer_rtx)
+	    {
+	      rtx temp;
+
+	      temp = operands[1];
+	      operands[1] = operands[2];
+	      operands[2] = temp;
+	    }
+	  if (operands[2] != stack_pointer_rtx)
+	    {
+	      operands[1] = SET_SRC (PATTERN (insn));
+	      return AS2 (lea%L0,%a1,%0);
+	    }
 	}
 
       output_asm_insn (AS2 (mov%L0,%1,%0), operands);
@@ -2391,6 +2403,12 @@
       else
         {
           CC_STATUS_INIT;
+
+	  if (operands[1] == stack_pointer_rtx)
+	    {
+	      output_asm_insn (AS2 (mov%L0,%1,%0), operands);
+	      operands[1] = operands[0];
+	    }
           operands[1] = gen_rtx (MULT, SImode, operands[1],
 				 GEN_INT (1 << INTVAL (operands[2])));
 	  return AS2 (lea%L0,%a1,%0);