Make compiler more acceptive wrt Isolate::use_crankshaft.

src/objects.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 <iomanip>
 #include <sstream>
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
@@ skipping 9584 matching lines @@
   // Iterate over all fields in the body but take care in dealing with
   // the code entry.
   IteratePointers(v, kPropertiesOffset, kCodeEntryOffset);
   v->VisitCodeEntry(this->address() + kCodeEntryOffset);
   IteratePointers(v, kCodeEntryOffset + kPointerSize, object_size);
 }
 
 
 void JSFunction::MarkForOptimization() {
   Isolate* isolate = GetIsolate();
-  DCHECK(isolate->use_crankshaft());
   DCHECK(!IsOptimized());
   DCHECK(shared()->allows_lazy_compilation() || code()->optimizable());
   set_code_no_write_barrier(
       isolate->builtins()->builtin(Builtins::kCompileOptimized));
   // No write barrier required, since the builtin is part of the root set.
 }
 
 
 void JSFunction::AttemptConcurrentOptimization() {
   Isolate* isolate = GetIsolate();
   if (!isolate->concurrent_recompilation_enabled() ||
       isolate->bootstrapper()->IsActive()) {
     MarkForOptimization();
     return;
   }
   if (isolate->concurrent_osr_enabled() &&
       isolate->optimizing_compiler_thread()->IsQueuedForOSR(this)) {
     // Do not attempt regular recompilation if we already queued this for OSR.
     // TODO(yangguo): This is necessary so that we don't install optimized
     // code on a function that is already optimized, since OSR and regular
     // recompilation race.  This goes away as soon as OSR becomes one-shot.
     return;
   }
-  DCHECK(isolate->use_crankshaft());
   DCHECK(!IsInOptimizationQueue());
   DCHECK(is_compiled() || isolate->debug()->has_break_points());
   DCHECK(!IsOptimized());
   DCHECK(shared()->allows_lazy_compilation() || code()->optimizable());
   DCHECK(isolate->concurrent_recompilation_enabled());
   if (FLAG_trace_concurrent_recompilation) {
     PrintF("  ** Marking ");
     ShortPrint();
     PrintF(" for concurrent recompilation.\n");
   }
@@ skipping 7444 matching lines @@
                                                CompilationInfo* info) {
   Handle<DependentCode> codes = DependentCode::InsertCompilationInfo(
       handle(cell->dependent_code(), info->isolate()),
       DependentCode::kPropertyCellChangedGroup, info->object_wrapper());
   if (*codes != cell->dependent_code()) cell->set_dependent_code(*codes);
   info->dependencies(DependentCode::kPropertyCellChangedGroup)->Add(
       cell, info->zone());
 }
 
 } }  // namespace v8::internal