Convert ToBooleanStub to a HydrogenStub. Currently just using HBranch, which is still fully impleme…

src/ic.cc

Index: src/ic.cc
diff --git a/src/ic.cc b/src/ic.cc
index e81ea10d9314f0d37d05db996efef1fb93cefecd..6029180a39c95ab0a5838ff8c013fcd4801c29b4 100644
--- a/src/ic.cc
+++ b/src/ic.cc
@@ -2972,23 +2972,23 @@ RUNTIME_FUNCTION(MaybeObject*, Unreachable) {
 }
 
 
-RUNTIME_FUNCTION(MaybeObject*, ToBoolean_Patch) {
-  ASSERT(args.length() == 3);
+MaybeObject* ToBooleanIC::ToBoolean(Handle<Object> object,
+                                    Code::ExtraICState extra_ic_state) {
+  ToBooleanStub stub(extra_ic_state);
+  bool to_boolean_value = stub.Record(object);
+  Handle<Code> code = stub.GetCode(isolate());
+  patch(*code);

[Toon Verwaest, 2013/05/28 09:33:32]

Just directly use set_target and remove patch.

+  return Smi::FromInt(to_boolean_value ? 1 : 0);
+}
+
 
+RUNTIME_FUNCTION(MaybeObject*, ToBooleanIC_Miss) {
+  ASSERT(args.length() == 1);
   HandleScope scope(isolate);
   Handle<Object> object = args.at<Object>(0);
-  Register tos = Register::from_code(args.smi_at(1));
-  ToBooleanStub::Types old_types(args.smi_at(2));
-
-  ToBooleanStub::Types new_types(old_types);
-  bool to_boolean_value = new_types.Record(object);
-  old_types.TraceTransition(new_types);
-
-  ToBooleanStub stub(tos, new_types);
-  Handle<Code> code = stub.GetCode(isolate);
   ToBooleanIC ic(isolate);
-  ic.patch(*code);
-  return Smi::FromInt(to_boolean_value ? 1 : 0);
+  Code::ExtraICState ic_state = ic.target()->extended_extra_ic_state();
+  return ic.ToBoolean(object, ic_state);
 }