diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index fab6aed..f1158e1 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -13820,6 +13820,8 @@
   if (const_1_to_63_operand (operands[2], VOIDmode))
     emit_insn (gen_ix86_<insn>ti3_doubleword
 		(operands[0], operands[1], operands[2]));
+  else if (CONST_INT_P (operands[2]) && INTVAL (operands[2]) == 64)
+    emit_insn (gen_<insn>64ti2_doubleword (operands[0], operands[1]));
   else
     {
       rtx amount = force_reg (QImode, operands[2]);
@@ -14045,6 +14047,24 @@
     }
 })
 
+(define_insn_and_split "<insn>64ti2_doubleword"
+ [(set (match_operand:TI 0 "register_operand" "=r,r,r")
+       (any_rotate:TI (match_operand:TI 1 "nonimmediate_operand" "0,r,o")
+                      (const_int 64)))]
+ "TARGET_64BIT"
+ "#"
+ "&& reload_completed"
+ [(set (match_dup 0) (match_dup 3))
+  (set (match_dup 2) (match_dup 1))]
+{
+  split_double_mode (TImode, &operands[0], 2, &operands[0], &operands[2]);
+  if (rtx_equal_p (operands[0], operands[1]))
+    {
+      emit_insn (gen_swapdi (operands[0], operands[2]));
+      DONE;
+    }
+})
+
 (define_mode_attr rorx_immediate_operand
 	[(SI "const_0_to_31_operand")
 	 (DI "const_0_to_63_operand")])