Reapply 7763, including arm and x64 variants.

src/x64/builtins-x64.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 640 matching lines @@
   { Label convert_to_object, use_global_receiver, patch_receiver;
     // Change context eagerly in case we need the global receiver.
     __ movq(rsi, FieldOperand(rdi, JSFunction::kContextOffset));
 
     // Do not transform the receiver for strict mode functions.
     __ movq(rbx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset));
     __ testb(FieldOperand(rbx, SharedFunctionInfo::kStrictModeByteOffset),
              Immediate(1 << SharedFunctionInfo::kStrictModeBitWithinByte));
     __ j(not_equal, &shift_arguments);
 
+    // Do not transform the receiver for natives (shared already in ebx).

[Lasse Reichstein, 2011/05/04 07:34:08]

More verbose comments: (SharedFunctionInfo is already loaded into rbx).

+    __ movq(rbx, FieldOperand(rbx, SharedFunctionInfo::kScriptOffset));
+    __ CompareRoot(rbx, Heap::kUndefinedValueRootIndex);

[Lasse Reichstein, 2011/05/04 07:34:08]

Create a bug for handling non-native functions with undefined script.

[Rico, 2011/05/04 08:42:18]

Don issue 1366

+    __ j(equal, &shift_arguments);
+    __ movq(rbx, FieldOperand(rbx, Script::kTypeOffset));
+    __ SmiToInteger32(rbx, rbx);

[Lasse Reichstein, 2011/05/04 07:34:08]

Use 
 __ SmiToInteger32(rbx, FieldOperand(rbx, Script::kTypeOffset))
to load an integer32 from a smi memory location.

Or better yet, use
 SmiCompare(FieldOperand(rbx, Script::kTypeOffset),
Smi::FromInt(Script::TYPE_NATIVE));
to compare directly with memory.

[Rico, 2011/05/04 08:42:18]

Done.

+    __ cmpq(rbx, Immediate(Script::TYPE_NATIVE));

[Lasse Reichstein, 2011/05/04 07:34:08]

Should have been cmpl.

[Rico, 2011/05/04 08:42:18]

Using SmiCompare instead

+    __ j(equal, &shift_arguments);
+
     // Compute the receiver in non-strict mode.
     __ movq(rbx, Operand(rsp, rax, times_pointer_size, 0));
     __ JumpIfSmi(rbx, &convert_to_object);
 
     __ CompareRoot(rbx, Heap::kNullValueRootIndex);
     __ j(equal, &use_global_receiver);
     __ CompareRoot(rbx, Heap::kUndefinedValueRootIndex);
     __ j(equal, &use_global_receiver);
 
     __ CmpObjectType(rbx, FIRST_JS_OBJECT_TYPE, rcx);
@@ skipping 144 matching lines @@
   // Compute the receiver.
   Label call_to_object, use_global_receiver, push_receiver;
   __ movq(rbx, Operand(rbp, kReceiverOffset));
 
   // Do not transform the receiver for strict mode functions.
   __ movq(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset));
   __ testb(FieldOperand(rdx, SharedFunctionInfo::kStrictModeByteOffset),
            Immediate(1 << SharedFunctionInfo::kStrictModeBitWithinByte));
   __ j(not_equal, &push_receiver);
 
+  // Do not transform the receiver for natives (shared already in rdx).
+  __ movq(rdx, FieldOperand(rdx, SharedFunctionInfo::kScriptOffset));
+  __ CompareRoot(rdx, Heap::kUndefinedValueRootIndex);
+  __ j(equal, &push_receiver);
+  __ movq(rdx, FieldOperand(rdx, Script::kTypeOffset));
+  __ SmiToInteger32(rdx, rdx);
+  __ cmpq(rdx, Immediate(Script::TYPE_NATIVE));
+  __ j(equal, &push_receiver);
+
   // Compute the receiver in non-strict mode.
   __ JumpIfSmi(rbx, &call_to_object);
   __ CompareRoot(rbx, Heap::kNullValueRootIndex);
   __ j(equal, &use_global_receiver);
   __ CompareRoot(rbx, Heap::kUndefinedValueRootIndex);
   __ j(equal, &use_global_receiver);
 
   // If given receiver is already a JavaScript object then there's no
   // reason for converting it.
   __ CmpObjectType(rbx, FIRST_JS_OBJECT_TYPE, rcx);
@@ skipping 649 matching lines @@
   Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR);
   generator.Generate();
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64