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

src/compiler/machine-operator.cc

 // 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.
 
 #include "src/compiler/machine-operator.h"
 
 #include "src/base/lazy-instance.h"
 #include "src/compiler/opcodes.h"
 #include "src/compiler/operator.h"
 
@@ skipping 112 matching lines @@
   V(Float64Div, Operator::kNoProperties, 2, 0, 1)                             \
   V(Float64Mod, Operator::kNoProperties, 2, 0, 1)                             \
   V(Float64Sqrt, Operator::kNoProperties, 1, 0, 1)                            \
   V(Float64Ceil, Operator::kNoProperties, 1, 0, 1)                            \
   V(Float64Floor, Operator::kNoProperties, 1, 0, 1)                           \
   V(Float64RoundTruncate, Operator::kNoProperties, 1, 0, 1)                   \
   V(Float64RoundTiesAway, Operator::kNoProperties, 1, 0, 1)                   \
   V(Float64Equal, Operator::kCommutative, 2, 0, 1)                            \
   V(Float64LessThan, Operator::kNoProperties, 2, 0, 1)                        \
   V(Float64LessThanOrEqual, Operator::kNoProperties, 2, 0, 1)                 \
+  V(Float64ExtractLowWord32, Operator::kNoProperties, 1, 0, 1)                \
+  V(Float64ExtractHighWord32, Operator::kNoProperties, 1, 0, 1)               \
+  V(Float64InsertLowWord32, Operator::kNoProperties, 2, 0, 1)                 \
+  V(Float64InsertHighWord32, Operator::kNoProperties, 2, 0, 1)                \
   V(LoadStackPointer, Operator::kNoProperties, 0, 0, 1)
 
 
 #define MACHINE_TYPE_LIST(V) \
   V(MachFloat32)             \
   V(MachFloat64)             \
   V(MachInt8)                \
   V(MachUint8)               \
   V(MachInt16)               \
   V(MachUint16)              \
@@ skipping 167 matching lines @@
   }
   // Uncached.
   return new (zone_) Operator1<CheckedStoreRepresentation>(
       IrOpcode::kCheckedStore, Operator::kNoRead | Operator::kNoThrow,
       "CheckedStore", 4, 1, 1, 0, 1, 0, rep);
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8