[turbofan] Support for %_DoubleHi, %_DoubleLo and %_ConstructDouble.

src/compiler/raw-machine-assembler.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_RAW_MACHINE_ASSEMBLER_H_
 #define V8_COMPILER_RAW_MACHINE_ASSEMBLER_H_
 
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph-builder.h"
 #include "src/compiler/linkage.h"
@@ skipping 375 matching lines @@
   }
   Node* Float64Floor(Node* a) { return NewNode(machine()->Float64Floor(), a); }
   Node* Float64Ceil(Node* a) { return NewNode(machine()->Float64Ceil(), a); }
   Node* Float64RoundTruncate(Node* a) {
     return NewNode(machine()->Float64RoundTruncate(), a);
   }
   Node* Float64RoundTiesAway(Node* a) {
     return NewNode(machine()->Float64RoundTiesAway(), a);
   }
 
+  // Float64 bit operations.
+  Node* Float64ExtractLowWord32(Node* a) {
+    return NewNode(machine()->Float64ExtractLowWord32(), a);
+  }
+  Node* Float64ExtractHighWord32(Node* a) {
+    return NewNode(machine()->Float64ExtractHighWord32(), a);
+  }
+  Node* Float64InsertLowWord32(Node* a, Node* b) {
+    return NewNode(machine()->Float64InsertLowWord32(), a, b);
+  }
+  Node* Float64InsertHighWord32(Node* a, Node* b) {
+    return NewNode(machine()->Float64InsertHighWord32(), a, b);
+  }
+
   // Parameters.
   Node* Parameter(size_t index);
 
   // Control flow.
   Label* Exit();
   void Goto(Label* label);
   void Branch(Node* condition, Label* true_val, Label* false_val);
   void Switch(Node* index, Label* default_label, int32_t* case_values,
               Label** case_labels, size_t case_count);
   // Call through CallFunctionStub with lazy deopt and frame-state.
@@ skipping 49 matching lines @@
   BasicBlock* current_block_;
 
   DISALLOW_COPY_AND_ASSIGN(RawMachineAssembler);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_RAW_MACHINE_ASSEMBLER_H_