Disentangle assembler from isolate.

src/mips64/macro-assembler-mips64.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.
 
 #include <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #if V8_TARGET_ARCH_MIPS64
 
 #include "src/base/division-by-constant.h"
 #include "src/bootstrapper.h"
@@ skipping 11 matching lines @@
 const uint32_t kDoubleExponentShift = HeapNumber::kMantissaBits;
 const uint32_t kDoubleNaNShift = kDoubleExponentShift - 1;
 const uint64_t kDoubleNaNMask = Double::kExponentMask | (1L << kDoubleNaNShift);
 
 const uint32_t kSingleSignMask = kBinary32SignMask;
 const uint32_t kSingleExponentMask = kBinary32ExponentMask;
 const uint32_t kSingleExponentShift = kBinary32ExponentShift;
 const uint32_t kSingleNaNShift = kSingleExponentShift - 1;
 const uint32_t kSingleNaNMask = kSingleExponentMask | (1 << kSingleNaNShift);
 
-MacroAssembler::MacroAssembler(Isolate* arg_isolate, void* buffer, int size,
+MacroAssembler::MacroAssembler(Isolate* isolate, void* buffer, int size,
                                CodeObjectRequired create_code_object)
-    : Assembler(arg_isolate, buffer, size),
+    : Assembler(isolate, buffer, size),
       generating_stub_(false),
       has_frame_(false),
-      has_double_zero_reg_set_(false) {
+      has_double_zero_reg_set_(false),
+      isolate_(isolate) {
   if (create_code_object == CodeObjectRequired::kYes) {
     code_object_ =
-        Handle<Object>::New(isolate()->heap()->undefined_value(), isolate());
+        Handle<Object>::New(isolate_->heap()->undefined_value(), isolate_);
   }
 }
 
 void MacroAssembler::Load(Register dst,
                           const MemOperand& src,
                           Representation r) {
   DCHECK(!r.IsDouble());
   if (r.IsInteger8()) {
     lb(dst, src);
   } else if (r.IsUInteger8()) {
@@ skipping 6825 matching lines @@
   if (mag.shift > 0) sra(result, result, mag.shift);
   srl(at, dividend, 31);
   Addu(result, result, Operand(at));
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS64