swap in global proxy on accessors

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 3e06865451e78101f1ae06af507a7ab1d162542f..a43d709b17d82db410c2defe2cf31d760cb843be 100644
--- a/src/x64/stub-cache-x64.cc
+++ b/src/x64/stub-cache-x64.cc
@@ -1182,6 +1182,7 @@ Handle<Code> StoreStubCompiler::CompileStoreCallback(
 
 void StoreStubCompiler::GenerateStoreViaSetter(
     MacroAssembler* masm,
+    Handle<HeapType> type,
     Handle<JSFunction> setter) {
   // ----------- S t a t e -------------
   //  -- rax    : value
@@ -1191,14 +1192,21 @@ void StoreStubCompiler::GenerateStoreViaSetter(
   // -----------------------------------
   {
     FrameScope scope(masm, StackFrame::INTERNAL);
+    Register receiver = rdx;
+    Register value = rax;
 
     // Save value register, so we can restore it later.
-    __ push(rax);
+    __ push(value);
 
     if (!setter.is_null()) {
       // Call the JavaScript setter with receiver and value on the stack.
-      __ push(rdx);
-      __ push(rax);
+      if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) {
+        // Swap in the global receiver.
+        __ movp(receiver,
+                FieldOperand(receiver, JSGlobalObject::kGlobalReceiverOffset));
+      }
+      __ push(receiver);
+      __ push(value);
       ParameterCount actual(1);
       ParameterCount expected(setter);
       __ InvokeFunction(setter, expected, actual,
@@ -1325,6 +1333,7 @@ Register* KeyedStoreStubCompiler::registers() {
 
 
 void LoadStubCompiler::GenerateLoadViaGetter(MacroAssembler* masm,
+                                             Handle<HeapType> type,
                                              Register receiver,
                                              Handle<JSFunction> getter) {
   // ----------- S t a t e -------------
@@ -1337,6 +1346,11 @@ void LoadStubCompiler::GenerateLoadViaGetter(MacroAssembler* masm,
 
     if (!getter.is_null()) {
       // Call the JavaScript getter with the receiver on the stack.
+      if (IC::TypeToMap(*type, masm->isolate())->IsJSGlobalObjectMap()) {
+        // Swap in the global receiver.
+        __ movp(receiver,
+                FieldOperand(receiver, JSGlobalObject::kGlobalReceiverOffset));
+      }
       __ push(receiver);
       ParameterCount actual(0);
       ParameterCount expected(getter);