[ic] Resurrect access checks for primitive and global proxy receivers.

src/ic/x87/handler-compiler-x87.cc

Index: src/ic/x87/handler-compiler-x87.cc
diff --git a/src/ic/x87/handler-compiler-x87.cc b/src/ic/x87/handler-compiler-x87.cc
index 5642d0406b49cf51880b7fab7716e5d35aa3e368..a5c32d37ccdf8b2f8546ec3c4ae6268262c6258e 100644
--- a/src/ic/x87/handler-compiler-x87.cc
+++ b/src/ic/x87/handler-compiler-x87.cc
@@ -411,6 +411,29 @@ void NamedStoreHandlerCompiler::GenerateFieldTypeChecks(FieldType* field_type,
   }
 }
 
+void PropertyHandlerCompiler::GenerateAccessCheck(
+    Handle<WeakCell> native_context_cell, Register scratch1, Register scratch2,
+    Label* miss, bool compare_native_contexts_only) {
+  Label done;
+  // Load current native context.
+  __ mov(scratch1, NativeContextOperand());
+  // Load expected native context.
+  __ LoadWeakValue(scratch2, native_context_cell, miss);
+  __ cmp(scratch1, scratch2);
+
+  if (!compare_native_contexts_only) {
+    __ j(equal, &done);
+
+    // Compare security tokens of current and expected native contexts.
+    __ mov(scratch1, ContextOperand(scratch1, Context::SECURITY_TOKEN_INDEX));
+    __ mov(scratch2, ContextOperand(scratch2, Context::SECURITY_TOKEN_INDEX));
+    __ cmp(scratch1, scratch2);
+  }
+  __ j(not_equal, miss);
+
+  __ bind(&done);
+}
+
 Register PropertyHandlerCompiler::CheckPrototypes(
     Register object_reg, Register holder_reg, Register scratch1,
     Register scratch2, Handle<Name> name, Label* miss,