SSE2 truncating double-to-i.

src/ia32/lithium-ia32.h

Index: src/ia32/lithium-ia32.h
diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index 94bf8fd6d2fbdc395d60a70dc9d0ef07e7ce94d2..9839c47eee7e9d39befbefbba77ac2d9ac225997 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -1494,12 +1494,17 @@ class LNumberTagD: public LUnaryOperation {
 // Sometimes truncating conversion from a tagged value to an int32.
 class LDoubleToI: public LUnaryOperation {
  public:
-  explicit LDoubleToI(LOperand* value) : LUnaryOperation(value) { }
+  LDoubleToI(LOperand* value, LOperand* temporary)
+      : LUnaryOperation(value), temporary_(temporary) { }
 
   DECLARE_CONCRETE_INSTRUCTION(DoubleToI, "double-to-i")
   DECLARE_HYDROGEN_ACCESSOR(Change)
 
   bool truncating() { return hydrogen()->CanTruncateToInt32(); }
+  LOperand* temporary() const { return temporary_; }
+
+ private:
+  LOperand* temporary_;
 };