[Interpreter] Remove register file register and replace with LoadParentFramePointer.

src/frames.h

 // 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.
 
 #ifndef V8_FRAMES_H_
 #define V8_FRAMES_H_
 
 #include "src/allocation.h"
 #include "src/handles.h"
 #include "src/safepoint-table.h"
@@ skipping 306 matching lines @@
 
 class InterpreterFrameConstants : public AllStatic {
  public:
   // Fixed frame includes new.target and bytecode offset.
   static const int kFixedFrameSize =
       StandardFrameConstants::kFixedFrameSize + 3 * kPointerSize;
   static const int kFixedFrameSizeFromFp =
       StandardFrameConstants::kFixedFrameSizeFromFp + 3 * kPointerSize;
 
   // FP-relative.
+  static const int kLastParamFromFp = StandardFrameConstants::kCallerSPOffset;
   static const int kNewTargetFromFp =
       -StandardFrameConstants::kFixedFrameSizeFromFp - 1 * kPointerSize;
   static const int kBytecodeArrayFromFp =
       -StandardFrameConstants::kFixedFrameSizeFromFp - 2 * kPointerSize;
   static const int kBytecodeOffsetFromFp =
       -StandardFrameConstants::kFixedFrameSizeFromFp - 3 * kPointerSize;
-  static const int kRegisterFilePointerFromFp =
+  static const int kRegisterFileFromFp =
       -StandardFrameConstants::kFixedFrameSizeFromFp - 4 * kPointerSize;
 
-  static const int kExpressionsOffset = kRegisterFilePointerFromFp;
+  static const int kExpressionsOffset = kRegisterFileFromFp;
 
   // Expression index for {StandardFrame::GetExpressionAddress}.
   static const int kBytecodeArrayExpressionIndex = -2;
   static const int kBytecodeOffsetExpressionIndex = -1;
   static const int kRegisterFileExpressionIndex = 0;
-
-  // Register file pointer relative.
-  static const int kLastParamFromRegisterPointer =
-      StandardFrameConstants::kFixedFrameSize + 4 * kPointerSize;
-
-  static const int kBytecodeOffsetFromRegisterPointer = 1 * kPointerSize;
-  static const int kBytecodeArrayFromRegisterPointer = 2 * kPointerSize;
-  static const int kNewTargetFromRegisterPointer = 3 * kPointerSize;
-  static const int kFunctionFromRegisterPointer = 4 * kPointerSize;
-  static const int kContextFromRegisterPointer = 5 * kPointerSize;
 };
 
 inline static int FPOffsetToFrameSlot(int frame_offset) {
   return StandardFrameConstants::kFixedSlotCountAboveFp - 1 -
          frame_offset / kPointerSize;
 }
 
 inline static int FrameSlotToFPOffset(int slot) {
   return (StandardFrameConstants::kFixedSlotCountAboveFp - 1 - slot) *
          kPointerSize;
@@ skipping 856 matching lines @@
 
 
 // Reads all frames on the current stack and copies them into the current
 // zone memory.
 Vector<StackFrame*> CreateStackMap(Isolate* isolate, Zone* zone);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_FRAMES_H_