[turbofan] Add support for reinterpreting integers as floating point and vice versa.

src/compiler/raw-machine-assembler.h

Index: src/compiler/raw-machine-assembler.h
diff --git a/src/compiler/raw-machine-assembler.h b/src/compiler/raw-machine-assembler.h
index 7329af0598232a8560c44e9fe272c4b765bda17c..03023b42a00ca695ade4e46a79bae467df1144c1 100644
--- a/src/compiler/raw-machine-assembler.h
+++ b/src/compiler/raw-machine-assembler.h
@@ -433,6 +433,18 @@ class RawMachineAssembler {
   Node* TruncateInt64ToInt32(Node* a) {
     return NewNode(machine()->TruncateInt64ToInt32(), a);
   }
+  Node* BitcastFloat32ToInt32(Node* a) {
+    return NewNode(machine()->BitcastFloat32ToInt32(), a);
+  }
+  Node* BitcastFloat64ToInt64(Node* a) {
+    return NewNode(machine()->BitcastFloat64ToInt64(), a);
+  }
+  Node* BitcastInt32ToFloat32(Node* a) {
+    return NewNode(machine()->BitcastInt32ToFloat32(), a);
+  }
+  Node* BitcastInt64ToFloat64(Node* a) {
+    return NewNode(machine()->BitcastInt64ToFloat64(), a);
+  }
   Node* Float64RoundDown(Node* a) {
     return NewNode(machine()->Float64RoundDown().op(), a);
   }