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

src/ppc/builtins-ppc.cc

 // Copyright 2014 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_PPC
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/full-codegen/full-codegen.h"
@@ skipping 57 matching lines @@
   }
   __ addi(r3, r3, 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.
-
-  __ LoadP(result,
-           MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
-  __ LoadP(result,
-           FieldMemOperand(result, JSGlobalObject::kNativeContextOffset));
-  // Load the InternalArray function from the native context.
-  __ LoadP(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.
-
-  __ LoadP(result,
-           MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
-  __ LoadP(result,
-           FieldMemOperand(result, JSGlobalObject::kNativeContextOffset));
-  // Load the Array function from the native context.
-  __ LoadP(
-      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 -------------
   //  -- r3     : number of arguments
   //  -- lr     : return address
   //  -- sp[...]: constructor arguments
   // -----------------------------------
   Label generic_array_code, one_or_more_arguments, two_or_more_arguments;
@@ skipping 1636 matching lines @@
   // not we raise an exception).
   __ bind(&non_function);
   // Check if target has a [[Call]] internal method.
   __ lbz(r7, FieldMemOperand(r7, Map::kBitFieldOffset));
   __ TestBit(r7, Map::kIsCallable, r0);
   __ beq(&non_callable, cr0);
   // Overwrite the original receiver the (original) target.
   __ ShiftLeftImm(r8, r3, Operand(kPointerSizeLog2));
   __ StorePX(r4, MemOperand(sp, r8));
   // Let the "call_as_function_delegate" take care of the rest.
-  __ LoadGlobalFunction(Context::CALL_AS_FUNCTION_DELEGATE_INDEX, r4);
+  __ LoadNativeContextSlot(Context::CALL_AS_FUNCTION_DELEGATE_INDEX, r4);
   __ 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(r4);
     __ CallRuntime(Runtime::kThrowCalledNonCallable, 1);
@@ skipping 63 matching lines @@
   __ lbz(r5, FieldMemOperand(r7, Map::kBitFieldOffset));
   __ TestBit(r5, Map::kIsConstructor, r0);
   __ beq(&non_constructor, cr0);
 
   // Called Construct on an exotic Object with a [[Construct]] internal method.
   {
     // Overwrite the original receiver with the (original) target.
     __ ShiftLeftImm(r8, r3, Operand(kPointerSizeLog2));
     __ StorePX(r4, MemOperand(sp, r8));
     // Let the "call_as_constructor_delegate" take care of the rest.
-    __ LoadGlobalFunction(Context::CALL_AS_CONSTRUCTOR_DELEGATE_INDEX, r4);
+    __ LoadNativeContextSlot(Context::CALL_AS_CONSTRUCTOR_DELEGATE_INDEX, r4);
     __ 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 156 matching lines @@
     __ bkpt(0);
   }
 }
 
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC