Skip canonicalization check in LStoreKeyedFastDoubleElement when it is not needed:

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 0cfed121b6f3905fdef8b473cdcf92f578e236d0..1ebf432dc24433d75b741f2e279879690e9d5fe6 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -1787,6 +1787,8 @@ class LStoreKeyedFastDoubleElement: public LTemplateInstruction<0, 3, 0> {
   LOperand* elements() { return inputs_[0]; }
   LOperand* key() { return inputs_[1]; }
   LOperand* value() { return inputs_[2]; }
+
+  bool NeedsCanonicalization() { return hydrogen()->NeedsCanonicalization(); }
 };