Win64 - Allow returning two values from a runtime function.

src/x64/stub-cache-x64.cc

Index: src/x64/stub-cache-x64.cc
diff --git a/src/x64/stub-cache-x64.cc b/src/x64/stub-cache-x64.cc
index fcddfc4e7e6a009182a89be0a37a2d79011a5f1a..389b6e7c1a89709208b7cae0424db00264e362b3 100644
--- a/src/x64/stub-cache-x64.cc
+++ b/src/x64/stub-cache-x64.cc
@@ -354,7 +354,7 @@ static void CompileCallLoadPropertyWithInterceptor(MacroAssembler* masm,
   __ movq(rax, Immediate(5));
   __ movq(rbx, ref);
 
-  CEntryStub stub;
+  CEntryStub stub(1);
   __ CallStub(&stub);
 }
 
@@ -489,7 +489,7 @@ class LoadInterceptorCompiler BASE_EMBEDDED {
 
       ExternalReference ref =
           ExternalReference(IC_Utility(IC::kLoadCallbackProperty));
-      __ TailCallRuntime(ref, 5);
+      __ TailCallRuntime(ref, 5, 1);
 
       __ bind(&cleanup);
       __ pop(scratch1);
@@ -511,7 +511,7 @@ class LoadInterceptorCompiler BASE_EMBEDDED {
 
     ExternalReference ref = ExternalReference(
         IC_Utility(IC::kLoadPropertyWithInterceptorForLoad));
-    __ TailCallRuntime(ref, 5);
+    __ TailCallRuntime(ref, 5, 1);
   }
 
  private:
@@ -661,7 +661,7 @@ class CallInterceptorCompiler BASE_EMBEDDED {
     __ movq(rax, Immediate(5));
     __ movq(rbx, ref);
 
-    CEntryStub stub;
+    CEntryStub stub(1);
     __ CallStub(&stub);
 
     __ LeaveInternalFrame();
@@ -1362,7 +1362,7 @@ Object* StoreStubCompiler::CompileStoreCallback(JSObject* object,
   // Do tail-call to the runtime system.
   ExternalReference store_callback_property =
       ExternalReference(IC_Utility(IC::kStoreCallbackProperty));
-  __ TailCallRuntime(store_callback_property, 4);
+  __ TailCallRuntime(store_callback_property, 4, 1);
 
   // Handle store cache miss.
   __ bind(&miss);
@@ -1450,7 +1450,7 @@ Object* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver,
   // Do tail-call to the runtime system.
   ExternalReference store_ic_property =
       ExternalReference(IC_Utility(IC::kStoreInterceptorProperty));
-  __ TailCallRuntime(store_ic_property, 3);
+  __ TailCallRuntime(store_ic_property, 3, 1);
 
   // Handle store cache miss.
   __ bind(&miss);
@@ -1652,7 +1652,7 @@ void StubCompiler::GenerateLoadCallback(JSObject* object,
   // Do tail-call to the runtime system.
   ExternalReference load_callback_property =
       ExternalReference(IC_Utility(IC::kLoadCallbackProperty));
-  __ TailCallRuntime(load_callback_property, 5);
+  __ TailCallRuntime(load_callback_property, 5, 1);
 }