Don't exchange null and undefined with the global object in function.prototype.{call, apply} for ...

src/ia32/builtins-ia32.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 581 matching lines @@
   { Label convert_to_object, use_global_receiver, patch_receiver;
     // Change context eagerly in case we need the global receiver.
     __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset));
 
     // Do not transform the receiver for strict mode functions.
     __ mov(ebx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
     __ test_b(FieldOperand(ebx, SharedFunctionInfo::kStrictModeByteOffset),
               1 << SharedFunctionInfo::kStrictModeBitWithinByte);
     __ j(not_equal, &shift_arguments);
 
+    // Do not transform the receiver for natives (shared already in ebx).
+    __ mov(ebx, FieldOperand(ebx, SharedFunctionInfo::kScriptOffset));
+    __ cmp(ebx, factory->undefined_value());
+    __ j(equal, &shift_arguments);
+    __ mov(ebx, FieldOperand(ebx, Script::kTypeOffset));
+    __ SmiUntag(ebx);
+    __ cmp(ebx, Script::TYPE_NATIVE);
+    __ j(equal, &shift_arguments);
+
     // Compute the receiver in non-strict mode.
     __ mov(ebx, Operand(esp, eax, times_4, 0));  // First argument.
     __ test(ebx, Immediate(kSmiTagMask));
     __ j(zero, &convert_to_object);
 
     __ cmp(ebx, factory->null_value());
     __ j(equal, &use_global_receiver);
     __ cmp(ebx, factory->undefined_value());
     __ j(equal, &use_global_receiver);
 
@@ skipping 136 matching lines @@
   // Compute the receiver.
   Label call_to_object, use_global_receiver, push_receiver;
   __ mov(ebx, Operand(ebp, 3 * kPointerSize));
 
   // Do not transform the receiver for strict mode functions.
   __ mov(ecx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
   __ test_b(FieldOperand(ecx, SharedFunctionInfo::kStrictModeByteOffset),
             1 << SharedFunctionInfo::kStrictModeBitWithinByte);
   __ j(not_equal, &push_receiver);
 
+  Factory* factory = masm->isolate()->factory();
+
+  // Do not transform the receiver for natives (shared already in ecx).
+  __ mov(ecx, FieldOperand(ecx, SharedFunctionInfo::kScriptOffset));
+  __ cmp(ecx, factory->undefined_value());
+  __ j(equal, &push_receiver);
+  __ mov(ecx, FieldOperand(ecx, Script::kTypeOffset));
+  __ SmiUntag(ecx);
+  __ cmp(ecx, Script::TYPE_NATIVE);
+  __ j(equal, &push_receiver);
+
   // Compute the receiver in non-strict mode.
   __ test(ebx, Immediate(kSmiTagMask));
   __ j(zero, &call_to_object);
-  Factory* factory = masm->isolate()->factory();
   __ cmp(ebx, factory->null_value());
   __ j(equal, &use_global_receiver);
   __ cmp(ebx, factory->undefined_value());
   __ j(equal, &use_global_receiver);
 
   // If given receiver is already a JavaScript object then there's no
   // reason for converting it.
   // We don't use IsObjectJSObjectType here because we jump on success.
   __ mov(ecx, FieldOperand(ebx, HeapObject::kMapOffset));
   __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset));
@@ skipping 815 matching lines @@
   Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR);
   generator.Generate();
 }
 
 
 #undef __
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32