Disentangle assembler from isolate.

src/compiler/x64/code-generator-x64.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/compiler/code-generator.h"
 
 #include <limits>
 
 #include "src/compilation-info.h"
 #include "src/compiler/code-generator-impl.h"
@@ skipping 2489 matching lines @@
     int deoptimization_id, SourcePosition pos) {
   DeoptimizeKind deoptimization_kind = GetDeoptimizationKind(deoptimization_id);
   DeoptimizeReason deoptimization_reason =
       GetDeoptimizationReason(deoptimization_id);
   Deoptimizer::BailoutType bailout_type =
       deoptimization_kind == DeoptimizeKind::kSoft ? Deoptimizer::SOFT
                                                    : Deoptimizer::EAGER;
   Address deopt_entry = Deoptimizer::GetDeoptimizationEntry(
       isolate(), deoptimization_id, bailout_type);
   if (deopt_entry == nullptr) return kTooManyDeoptimizationBailouts;
-  __ RecordDeoptReason(deoptimization_reason, pos, deoptimization_id);
+  if (isolate()->NeedsSourcePositionsForProfiling()) {
+    __ RecordDeoptReason(deoptimization_reason, pos, deoptimization_id);
+  }
   __ call(deopt_entry, RelocInfo::RUNTIME_ENTRY);
   return kSuccess;
 }
 
 
 namespace {
 
 static const int kQuadWordSize = 16;
 
 }  // namespace
@@ skipping 410 matching lines @@
     int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc;
     __ Nop(padding_size);
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8