Disentangle assembler from isolate.

src/crankshaft/lithium-codegen.cc

 // 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.
 
 #include "src/crankshaft/lithium-codegen.h"
 
 #include <sstream>
 
 #include "src/objects-inl.h"
 
@@ skipping 150 matching lines @@
   size_t length = builder.position();
   Vector<char> copy = Vector<char>::New(static_cast<int>(length) + 1);
   MemCopy(copy.start(), builder.Finalize(), copy.length());
   masm()->RecordComment(copy.start());
 }
 
 
 void LCodeGenBase::DeoptComment(const Deoptimizer::DeoptInfo& deopt_info) {
   SourcePosition position = deopt_info.position;
   int deopt_id = deopt_info.deopt_id;
-  masm()->RecordDeoptReason(deopt_info.deopt_reason, position, deopt_id);
+  if (masm()->isolate()->NeedsSourcePositionsForProfiling()) {
+    masm()->RecordDeoptReason(deopt_info.deopt_reason, position, deopt_id);
+  }
 }
 
 
 int LCodeGenBase::GetNextEmittedBlock() const {
   for (int i = current_block_ + 1; i < graph()->blocks()->length(); ++i) {
     if (!graph()->blocks()->at(i)->IsReachable()) continue;
     if (!chunk_->GetLabel(i)->HasReplacement()) return i;
   }
   return -1;
 }
@@ skipping 223 matching lines @@
 
 Deoptimizer::DeoptInfo LCodeGenBase::MakeDeoptInfo(
     LInstruction* instr, DeoptimizeReason deopt_reason, int deopt_id) {
   Deoptimizer::DeoptInfo deopt_info(instr->hydrogen_value()->position(),
                                     deopt_reason, deopt_id);
   return deopt_info;
 }
 
 }  // namespace internal
 }  // namespace v8