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

src/compiler/machine-operator.cc

Index: src/compiler/machine-operator.cc
diff --git a/src/compiler/machine-operator.cc b/src/compiler/machine-operator.cc
index 2522a8e15dba03740ffe9a5e1cd72ff00666511f..6122eb144086f01d9ab6969e39c6623f5cfc6589 100644
--- a/src/compiler/machine-operator.cc
+++ b/src/compiler/machine-operator.cc
@@ -130,6 +130,10 @@ CheckedStoreRepresentation CheckedStoreRepresentationOf(Operator const* op) {
   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)