Generate StoreGlobal stubs with Hydrogen

src/types.cc

Index: src/types.cc
diff --git a/src/types.cc b/src/types.cc
index 20e8a4c994541fc18f10e3cdbece64843645acd8..9a608d94658e89d927f4b19f43e13827ecf58dfa 100644
--- a/src/types.cc
+++ b/src/types.cc
@@ -302,7 +302,13 @@ bool Type::InUnion(Handle<Unioned> unioned, int current_size) {
   ASSERT(!this->is_union());
   for (int i = 0; i < current_size; ++i) {
     Handle<Type> type = union_get(unioned, i);
-    if (type->is_bitset() ? this->Is(type) : this == *type) return true;
+    if (type->is_bitset()) return this->Is(type);

[rossberg, 2013/06/19 09:45:15]

This whole piece of code should probably be simplified to just

  if (this->Is(type)) return true;

I believe the only reason I special-cased non-bitsets was as a
micro-optimisation, at a point where Is still was slightly more expensive for
the class and constant case than it is now. It no longer seems worth it.

+    if (this == *type) return true;
+    if (type->is_constant()) {
+      if (this->is_constant() && *type->as_constant() == *this->as_constant()) {
+        return true;
+      }
+    }
   }
   return false;
 }