Make the strict-mode calling convention for contextual calls the default one.

src/ia32/builtins-ia32.cc

 // Copyright 2012 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 763 matching lines @@
       __ Set(edx, Immediate(0));  // restore
 
       __ pop(eax);
       __ SmiUntag(eax);
     }
 
     // Restore the function to edi.
     __ mov(edi, Operand(esp, eax, times_4, 1 * kPointerSize));
     __ jmp(&patch_receiver);
 
-    // Use the global receiver object from the called function as the
-    // receiver.
     __ bind(&use_global_receiver);
-    CallStubCompiler::FetchGlobalProxy(masm, ebx, edi);
+    __ mov(ebx,
+           Operand(esi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
+    __ mov(ebx, FieldOperand(ebx, GlobalObject::kGlobalReceiverOffset));
 
     __ bind(&patch_receiver);
     __ mov(Operand(esp, eax, times_4, 0), ebx);
 
     __ jmp(&shift_arguments);
   }
 
   // 3b. Check for function proxy.
   __ bind(&slow);
   __ Set(edx, Immediate(1));  // indicate function proxy
@@ skipping 50 matching lines @@
   }
 
   // 5b. Get the code to call from the function and check that the number of
   //     expected arguments matches what we're providing.  If so, jump
   //     (tail-call) to the code in register edx without checking arguments.
   __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
   __ mov(ebx,
          FieldOperand(edx, SharedFunctionInfo::kFormalParameterCountOffset));
   __ mov(edx, FieldOperand(edi, JSFunction::kCodeEntryOffset));
   __ SmiUntag(ebx);
-  __ SetCallKind(ecx, CALL_AS_METHOD);
+  __ SetCallKind(ecx, CALL_AS_FUNCTION);
   __ cmp(eax, ebx);
   __ j(not_equal,
        masm->isolate()->builtins()->ArgumentsAdaptorTrampoline());
 
   ParameterCount expected(0);
   __ InvokeCode(edx, expected, expected, JUMP_FUNCTION, NullCallWrapper(),
-                CALL_AS_METHOD);
+                CALL_AS_FUNCTION);
 }
 
 
 void Builtins::Generate_FunctionApply(MacroAssembler* masm) {
   static const int kArgumentsOffset = 2 * kPointerSize;
   static const int kReceiverOffset = 3 * kPointerSize;
   static const int kFunctionOffset = 4 * kPointerSize;
   {
     FrameScope frame_scope(masm, StackFrame::INTERNAL);
 
@@ skipping 31 matching lines @@
     const int kLimitOffset =
         StandardFrameConstants::kExpressionsOffset - 1 * kPointerSize;
     const int kIndexOffset = kLimitOffset - 1 * kPointerSize;
     __ push(eax);  // limit
     __ push(Immediate(0));  // index
 
     // Get the receiver.
     __ mov(ebx, Operand(ebp, kReceiverOffset));
 
     // Check that the function is a JS function (otherwise it must be a proxy).
-    Label push_receiver;
+    Label push_receiver, use_global_receiver;
     __ mov(edi, Operand(ebp, kFunctionOffset));
     __ CmpObjectType(edi, JS_FUNCTION_TYPE, ecx);
     __ j(not_equal, &push_receiver);
 
     // Change context eagerly to get the right global object if necessary.
     __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset));
 
     // Compute the receiver.
     // Do not transform the receiver for strict mode functions.
-    Label call_to_object, use_global_receiver;
+    Label call_to_object;
     __ 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).
     __ test_b(FieldOperand(ecx, SharedFunctionInfo::kNativeByteOffset),
               1 << SharedFunctionInfo::kNativeBitWithinByte);
@@ skipping 10 matching lines @@
     STATIC_ASSERT(LAST_SPEC_OBJECT_TYPE == LAST_TYPE);
     __ CmpObjectType(ebx, FIRST_SPEC_OBJECT_TYPE, ecx);
     __ j(above_equal, &push_receiver);
 
     __ bind(&call_to_object);
     __ push(ebx);
     __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION);
     __ mov(ebx, eax);
     __ jmp(&push_receiver);
 
-    // Use the current global receiver object as the receiver.
     __ bind(&use_global_receiver);
-    CallStubCompiler::FetchGlobalProxy(masm, ebx, edi);
+    __ mov(ebx,
+           Operand(esi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
+    __ mov(ebx, FieldOperand(ebx, GlobalObject::kGlobalReceiverOffset));
 
     // Push the receiver.
     __ bind(&push_receiver);
     __ push(ebx);
 
     // Copy all arguments from the array to the stack.
     Label entry, loop;
     __ mov(ecx, Operand(ebp, kIndexOffset));
     __ jmp(&entry);
     __ bind(&loop);
@@ skipping 12 matching lines @@
 
     // Update the index on the stack and in register eax.
     __ mov(ecx, Operand(ebp, kIndexOffset));
     __ add(ecx, Immediate(1 << kSmiTagSize));
     __ mov(Operand(ebp, kIndexOffset), ecx);
 
     __ bind(&entry);
     __ cmp(ecx, Operand(ebp, kLimitOffset));
     __ j(not_equal, &loop);
 
-    // Invoke the function.
+    // Call the function.
     Label call_proxy;
     __ mov(eax, ecx);
     ParameterCount actual(eax);
     __ SmiUntag(eax);
     __ mov(edi, Operand(ebp, kFunctionOffset));
     __ CmpObjectType(edi, JS_FUNCTION_TYPE, ecx);
     __ j(not_equal, &call_proxy);
     __ InvokeFunction(edi, actual, CALL_FUNCTION,
-                      NullCallWrapper(), CALL_AS_METHOD);
+                      NullCallWrapper(), CALL_AS_FUNCTION);
 
     frame_scope.GenerateLeaveFrame();
     __ ret(3 * kPointerSize);  // remove this, receiver, and arguments
 
-    // Invoke the function proxy.
+    // Call the function proxy.
     __ bind(&call_proxy);
     __ push(edi);  // add function proxy as last argument
     __ inc(eax);
     __ Set(ebx, Immediate(0));
-    __ SetCallKind(ecx, CALL_AS_METHOD);
+    __ SetCallKind(ecx, CALL_AS_FUNCTION);
     __ GetBuiltinEntry(edx, Builtins::CALL_FUNCTION_PROXY);
     __ call(masm->isolate()->builtins()->ArgumentsAdaptorTrampoline(),
             RelocInfo::CODE_TARGET);
 
     // Leave internal frame.
   }
   __ ret(3 * kPointerSize);  // remove this, receiver, and arguments
 }
 
 
@@ skipping 357 matching lines @@
 
   __ bind(&ok);
   __ ret(0);
 }
 
 #undef __
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32