Disentangle assembler from isolate.

src/ppc/macro-assembler-ppc.h

 // 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.
 
 #ifndef V8_PPC_MACRO_ASSEMBLER_PPC_H_
 #define V8_PPC_MACRO_ASSEMBLER_PPC_H_
 
 #include "src/assembler.h"
 #include "src/bailout-reason.h"
 #include "src/frames.h"
@@ skipping 93 matching lines @@
 #define Div divw
 #endif
 
 
 // MacroAssembler implements a collection of frequently used macros.
 class MacroAssembler : public Assembler {
  public:
   MacroAssembler(Isolate* isolate, void* buffer, int size,
                  CodeObjectRequired create_code_object);
 
+  Isolate* isolate() const { return isolate_; }
 
   // Returns the size of a call in instructions. Note, the value returned is
   // only valid as long as no entries are added to the constant pool between
   // checking the call size and emitting the actual call.
   static int CallSize(Register target);
   int CallSize(Address target, RelocInfo::Mode rmode, Condition cond = al);
   static int CallSizeNotPredictableCodeSize(Address target,
                                             RelocInfo::Mode rmode,
                                             Condition cond = al);
 
@@ skipping 1378 matching lines @@
   static const RegList kSafepointSavedRegisters;
   static const int kNumSafepointSavedRegisters;
 
   // Compute memory operands for safepoint stack slots.
   static int SafepointRegisterStackIndex(int reg_code);
   MemOperand SafepointRegisterSlot(Register reg);
   MemOperand SafepointRegistersAndDoublesSlot(Register reg);
 
   bool generating_stub_;
   bool has_frame_;
+  Isolate* isolate_;
   // This handle will be patched with the code object on installation.
   Handle<Object> code_object_;
 
   // Needs access to SafepointRegisterStackIndex for compiled frame
   // traversal.
   friend class StandardFrame;
 };
 
-
 // The code patcher is used to patch (typically) small parts of code e.g. for
 // debugging and other types of instrumentation. When using the code patcher
 // the exact number of bytes specified must be emitted. It is not legal to emit
 // relocation information. If any of these constraints are violated it causes
 // an assertion to fail.
 class CodePatcher {
  public:
   enum FlushICache { FLUSH, DONT_FLUSH };
 
   CodePatcher(Isolate* isolate, byte* address, int instructions,
@@ skipping 29 matching lines @@
 inline MemOperand NativeContextMemOperand() {
   return ContextMemOperand(cp, Context::NATIVE_CONTEXT_INDEX);
 }
 
 #define ACCESS_MASM(masm) masm->
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PPC_MACRO_ASSEMBLER_PPC_H_