Reapply 7763, including arm and x64 variants.

src/x64/builtins-x64.cc

Index: src/x64/builtins-x64.cc
===================================================================
--- src/x64/builtins-x64.cc	(revision 7763)
+++ src/x64/builtins-x64.cc	(working copy)
@@ -658,6 +658,15 @@
              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);
@@ -822,6 +831,15 @@
            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);