Small IL cleanup.

runtime/vm/intrinsifier_x64.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/intrinsifier.h"
 
 #include "vm/assembler.h"
@@ skipping 1129 matching lines @@
 bool Intrinsifier::Double_equal(Assembler* assembler) {
   return CompareDoubles(assembler, EQUAL);
 }
 
 
 bool Intrinsifier::Double_lessEqualThan(Assembler* assembler) {
   return CompareDoubles(assembler, BELOW_EQUAL);
 }
 
 
-bool Intrinsifier::Double_toDouble(Assembler* assembler) {
-  __ movq(RAX, Address(RSP, + 1 * kWordSize));
-  __ ret();
-  // Generate enough code to satisfy patchability constraint.
-  intptr_t offset = __ CodeSize();
-  __ nop(JumpPattern::InstructionLength() - offset);
-  return true;
-}
-
-
 // Expects left argument to be double (receiver). Right argument is unknown.
 // Both arguments are on stack.
 static bool DoubleArithmeticOperations(Assembler* assembler, Token::Kind kind) {
   Label fall_through;
   TestLastArgumentIsDouble(assembler, &fall_through, &fall_through);
   // Both arguments are double, right operand is in RAX.
   __ movsd(XMM1, FieldAddress(RAX, Double::value_offset()));
   __ movq(RAX, Address(RSP, + 2 * kWordSize));  // Left argument.
   __ movsd(XMM0, FieldAddress(RAX, Double::value_offset()));
   switch (kind) {
@@ skipping 397 matching lines @@
   __ LoadObject(RAX, bool_true);
   __ ret();
   return true;
 }
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64