[runtime] Replace global object link with native context link in all contexts.

src/arm/builtins-arm.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #if V8_TARGET_ARCH_ARM
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 49 matching lines @@
   __ mov(r0, r2, LeaveCC, ne);
   __ add(r0, r0, Operand(num_extra_args + 1));
 
   __ JumpToExternalReference(ExternalReference(id, masm->isolate()));
 }
 
 
 // Load the built-in InternalArray function from the current context.
 static void GenerateLoadInternalArrayFunction(MacroAssembler* masm,
                                               Register result) {
-  // Load the native context.
-
-  __ ldr(result,
-         MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
-  __ ldr(result, FieldMemOperand(result, JSGlobalObject::kNativeContextOffset));
-  // Load the InternalArray function from the native context.
-  __ ldr(result,
-         MemOperand(result,
-                    Context::SlotOffset(
-                        Context::INTERNAL_ARRAY_FUNCTION_INDEX)));
+  // Load the InternalArray function from the current native context.
+  __ LoadNativeContextSlot(Context::INTERNAL_ARRAY_FUNCTION_INDEX, result);
 }
 
 
 // Load the built-in Array function from the current context.
 static void GenerateLoadArrayFunction(MacroAssembler* masm, Register result) {
-  // Load the native context.
-
-  __ ldr(result,
-         MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
-  __ ldr(result, FieldMemOperand(result, JSGlobalObject::kNativeContextOffset));
-  // Load the Array function from the native context.
-  __ ldr(result,
-         MemOperand(result,
-                    Context::SlotOffset(Context::ARRAY_FUNCTION_INDEX)));
+  // Load the Array function from the current native context.
+  __ LoadNativeContextSlot(Context::ARRAY_FUNCTION_INDEX, result);
 }
 
 
 void Builtins::Generate_InternalArrayCode(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- r0     : number of arguments
   //  -- lr     : return address
   //  -- sp[...]: constructor arguments
   // -----------------------------------
   Label generic_array_code, one_or_more_arguments, two_or_more_arguments;
@@ skipping 1137 matching lines @@
   CompatibleReceiverCheck(masm, r2, r3, r4, r5, r6, &receiver_check_failed);
 
   // Get the callback offset from the FunctionTemplateInfo, and jump to the
   // beginning of the code.
   __ ldr(r4, FieldMemOperand(r3, FunctionTemplateInfo::kCallCodeOffset));
   __ ldr(r4, FieldMemOperand(r4, CallHandlerInfo::kFastHandlerOffset));
   __ add(r4, r4, Operand(Code::kHeaderSize - kHeapObjectTag));
   __ Jump(r4);
 
   __ bind(&set_global_proxy);
-  __ ldr(r2, GlobalObjectOperand());
-  __ ldr(r2, FieldMemOperand(r2, JSGlobalObject::kGlobalProxyOffset));
+  __ LoadGlobalProxy(r2);
   __ str(r2, MemOperand(sp, r0, LSL, kPointerSizeLog2));
   __ b(&valid_receiver);
 
   // Compatible receiver check failed: throw an Illegal Invocation exception.
   __ bind(&receiver_check_failed);
   // Drop the arguments (including the receiver)
   __ add(r0, r0, Operand(1));
   __ add(sp, sp, Operand(r0, LSL, kPointerSizeLog2));
   __ TailCallRuntime(Runtime::kThrowIllegalInvocation, 0, 1);
 }
@@ skipping 464 matching lines @@
   // 2. Call to something else, which might have a [[Call]] internal method (if
   // not we raise an exception).
   __ bind(&non_function);
   // Check if target has a [[Call]] internal method.
   __ ldrb(r4, FieldMemOperand(r4, Map::kBitFieldOffset));
   __ tst(r4, Operand(1 << Map::kIsCallable));
   __ b(eq, &non_callable);
   // Overwrite the original receiver the (original) target.
   __ str(r1, MemOperand(sp, r0, LSL, kPointerSizeLog2));
   // Let the "call_as_function_delegate" take care of the rest.
-  __ LoadGlobalFunction(Context::CALL_AS_FUNCTION_DELEGATE_INDEX, r1);
+  __ LoadNativeContextSlot(Context::CALL_AS_FUNCTION_DELEGATE_INDEX, r1);
   __ Jump(masm->isolate()->builtins()->CallFunction(
               ConvertReceiverMode::kNotNullOrUndefined),
           RelocInfo::CODE_TARGET);
 
   // 3. Call to something that is not callable.
   __ bind(&non_callable);
   {
     FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
     __ Push(r1);
     __ CallRuntime(Runtime::kThrowCalledNonCallable, 1);
@@ skipping 62 matching lines @@
   // Check if target has a [[Construct]] internal method.
   __ ldrb(r2, FieldMemOperand(r4, Map::kBitFieldOffset));
   __ tst(r2, Operand(1 << Map::kIsConstructor));
   __ b(eq, &non_constructor);
 
   // Called Construct on an exotic Object with a [[Construct]] internal method.
   {
     // Overwrite the original receiver with the (original) target.
     __ str(r1, MemOperand(sp, r0, LSL, kPointerSizeLog2));
     // Let the "call_as_constructor_delegate" take care of the rest.
-    __ LoadGlobalFunction(Context::CALL_AS_CONSTRUCTOR_DELEGATE_INDEX, r1);
+    __ LoadNativeContextSlot(Context::CALL_AS_CONSTRUCTOR_DELEGATE_INDEX, r1);
     __ Jump(masm->isolate()->builtins()->CallFunction(),
             RelocInfo::CODE_TARGET);
   }
 
   // Called Construct on an Object that doesn't have a [[Construct]] internal
   // method.
   __ bind(&non_constructor);
   __ Jump(masm->isolate()->builtins()->ConstructedNonConstructable(),
           RelocInfo::CODE_TARGET);
 }
@@ skipping 144 matching lines @@
   }
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM