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

src/compiler/x87/instruction-selector-x87.cc

Index: src/compiler/x87/instruction-selector-x87.cc
diff --git a/src/compiler/x87/instruction-selector-x87.cc b/src/compiler/x87/instruction-selector-x87.cc
index fbf0ed9515a0973d2e6b40da12dcf042ab746d77..2051b147bb099fee90f57d33e871fefcf74f0c72 100644
--- a/src/compiler/x87/instruction-selector-x87.cc
+++ b/src/compiler/x87/instruction-selector-x87.cc
@@ -664,6 +664,16 @@ void InstructionSelector::VisitTruncateFloat64ToInt32(Node* node) {
 }
 
 
+void InstructionSelector::VisitBitcastFloat32ToInt32(Node* node) {
+  UNIMPLEMENTED();
+}
+
+
+void InstructionSelector::VisitBitcastInt32ToFloat32(Node* node) {
+  UNIMPLEMENTED();
+}
+
+
 void InstructionSelector::VisitFloat32Add(Node* node) {
   X87OperandGenerator g(this);
   Emit(kX87PushFloat32, g.NoOutput(), g.Use(node->InputAt(0)));