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

src/arm64/macro-assembler-arm64.h

 // Copyright 2013 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.
 
 #ifndef V8_ARM64_MACRO_ASSEMBLER_ARM64_H_
 #define V8_ARM64_MACRO_ASSEMBLER_ARM64_H_
 
 #include <vector>
 
 #include "src/arm64/assembler-arm64.h"
@@ skipping 1114 matching lines @@
                                  int num_arguments,
                                  int result_size);
   void CallExternalReference(const ExternalReference& ext,
                              int num_arguments);
 
 
   // Invoke specified builtin JavaScript function.
   void InvokeBuiltin(int native_context_index, InvokeFlag flag,
                      const CallWrapper& call_wrapper = NullCallWrapper());
 
-  // Store the code object for the given builtin in the target register and
-  // setup the function in the function register.
-  void GetBuiltinEntry(Register target, Register function,
-                       int native_context_index);
-
-  // Store the function for the given builtin in the target register.
-  void GetBuiltinFunction(Register target, int native_context_index);
-
   void Jump(Register target);
   void Jump(Address target, RelocInfo::Mode rmode, Condition cond = al);
   void Jump(Handle<Code> code, RelocInfo::Mode rmode, Condition cond = al);
   void Jump(intptr_t target, RelocInfo::Mode rmode, Condition cond = al);
 
   void Call(Register target);
   void Call(Label* target);
   void Call(Address target, RelocInfo::Mode rmode);
   void Call(Handle<Code> code,
             RelocInfo::Mode rmode = RelocInfo::CODE_TARGET,
@@ skipping 516 matching lines @@
   //  * The exit frame is dropped.
   //  * The stack pointer is reset to jssp.
   //
   // The stack pointer must be csp on entry.
   void LeaveExitFrame(bool save_doubles,
                       const Register& scratch,
                       bool restore_context);
 
   void LoadContext(Register dst, int context_chain_length);
 
+  // Load the global object from the current context.
+  void LoadGlobalObject(Register dst) {
+    LoadNativeContextSlot(Context::EXTENSION_INDEX, dst);
+  }
+
   // Load the global proxy from the current context.
-  void LoadGlobalProxy(Register dst);
+  void LoadGlobalProxy(Register dst) {
+    LoadNativeContextSlot(Context::GLOBAL_PROXY_INDEX, dst);
+  }
 
   // Emit code for a truncating division by a constant. The dividend register is
   // unchanged. Dividend and result must be different.
   void TruncatingDiv(Register result, Register dividend, int32_t divisor);
 
   // ---------------------------------------------------------------------------
   // StatsCounter support
 
   void SetCounter(StatsCounter* counter, int value, Register scratch1,
                   Register scratch2);
@@ skipping 201 matching lines @@
   // map_in_out is the cached Array map in the native context of
   // expected_kind.
   void LoadTransitionedArrayMapConditional(
       ElementsKind expected_kind,
       ElementsKind transitioned_kind,
       Register map_in_out,
       Register scratch1,
       Register scratch2,
       Label* no_map_match);
 
-  void LoadGlobalFunction(int index, Register function);
+  void LoadNativeContextSlot(int index, Register dst);
 
   // Load the initial map from the global function. The registers function and
   // map can be the same, function is then overwritten.
   void LoadGlobalFunctionInitialMap(Register function,
                                     Register map,
                                     Register scratch);
 
   CPURegList* TmpList() { return &tmp_list_; }
   CPURegList* FPTmpList() { return &fptmp_list_; }
 
@@ skipping 284 matching lines @@
   // The state of the available lists at the start of this scope.
   RegList old_available_;     // kRegister
   RegList old_availablefp_;   // kFPRegister
 };
 
 
 inline MemOperand ContextMemOperand(Register context, int index = 0) {
   return MemOperand(context, Context::SlotOffset(index));
 }
 
-inline MemOperand GlobalObjectMemOperand() {
-  return ContextMemOperand(cp, Context::GLOBAL_OBJECT_INDEX);
+inline MemOperand NativeContextMemOperand() {
+  return ContextMemOperand(cp, Context::NATIVE_CONTEXT_INDEX);
 }
 
 
 // Encode and decode information about patchable inline SMI checks.
 class InlineSmiCheckInfo {
  public:
   explicit InlineSmiCheckInfo(Address info);
 
   bool HasSmiCheck() const {
     return smi_check_ != NULL;
@@ skipping 45 matching lines @@
 #error "Unsupported option"
 #define CODE_COVERAGE_STRINGIFY(x) #x
 #define CODE_COVERAGE_TOSTRING(x) CODE_COVERAGE_STRINGIFY(x)
 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 #endif  // V8_ARM64_MACRO_ASSEMBLER_ARM64_H_