VM: Move representation selection code out of the flow graph optimizer.

runtime/vm/flow_graph_compiler_x64.cc

 // Copyright (c) 2013, 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/flow_graph_compiler.h"
 
 #include "vm/ast_printer.h"
@@ skipping 59 matching lines @@
 bool FlowGraphCompiler::SupportsSinCos() {
   return true;
 }
 
 
 bool FlowGraphCompiler::SupportsHardwareDivision() {
   return true;
 }
 
 
+bool FlowGraphCompiler::CanConvertUnboxedMintToDouble() {
+  return false;
+}
+
+
 void FlowGraphCompiler::EnterIntrinsicMode() {
   ASSERT(!intrinsic_mode());
   intrinsic_mode_ = true;
   ASSERT(!assembler()->constant_pool_allowed());
 }
 
 
 void FlowGraphCompiler::ExitIntrinsicMode() {
   ASSERT(intrinsic_mode());
   intrinsic_mode_ = false;
@@ skipping 1725 matching lines @@
   __ movups(reg, Address(RSP, 0));
   __ AddImmediate(RSP, Immediate(kFpuRegisterSize));
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64