(floatsidf): Correctly handle case when SImode operand overlaps the

first DFmode register.

From-SVN: r1537

gcc/config/rs6000/rs6000.md

@@ -1887,6 +1887,14 @@
       emit_move_insn (operands[3], operands[4]);
       DONE;
     }
+
+  if (rtx_equal_p (operands[1], operands[3]))
+    {
+      rtx temp;
+
+      temp = operands[3]; operands[3] = operands[5]; operands[5] = temp;
+      temp = operands[4]; operands[4] = operands[1]; operands[1] = temp;
+    }
 }")
 
 (define_insn ""