Pass GC flags to incremental marker and start incremental marking with

src/heap/incremental-marking.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 "src/v8.h"
 
 #include "src/heap/incremental-marking.h"
 
 #include "src/code-stubs.h"
 #include "src/compilation-cache.h"
@@ skipping 449 matching lines @@
         Object* e = stubs->ValueAt(i);
         if (e->IsCode()) {
           RecordWriteStub::Patch(Code::cast(e), mode);
         }
       }
     }
   }
 }
 
 
-void IncrementalMarking::Start() {
+void IncrementalMarking::Start(int mark_compact_flags) {
   if (FLAG_trace_incremental_marking) {
     PrintF("[IncrementalMarking] Start\n");
   }
   DCHECK(FLAG_incremental_marking);
   DCHECK(FLAG_incremental_marking_steps);
   DCHECK(state_ == STOPPED);
   DCHECK(heap_->gc_state() == Heap::NOT_IN_GC);
   DCHECK(!heap_->isolate()->serializer_enabled());
 
   ResetStepCounters();
 
   was_activated_ = true;
 
   if (!heap_->mark_compact_collector()->sweeping_in_progress()) {
+    heap_->mark_compact_collector()->SetFlags(mark_compact_flags);
     StartMarking();
+    heap_->mark_compact_collector()->SetFlags(Heap::kNoGCFlags);
   } else {
     if (FLAG_trace_incremental_marking) {
       PrintF("[IncrementalMarking] Start sweeping.\n");
     }
     state_ = SWEEPING;
   }
 
   heap_->new_space()->LowerInlineAllocationLimit(kAllocatedThreshold);
 }
 
@@ skipping 328 matching lines @@
 
 void IncrementalMarking::Epilogue() {
   was_activated_ = false;
   weak_closure_was_overapproximated_ = false;
   weak_closure_approximation_rounds_ = 0;
 }
 
 
 void IncrementalMarking::OldSpaceStep(intptr_t allocated) {
   if (IsStopped() && ShouldActivateEvenWithoutIdleNotification()) {
-    Start();
+    Start(Heap::kNoGCFlags);
   } else {
     Step(allocated * kFastMarking / kInitialMarkingSpeed, GC_VIA_STACK_GUARD);
   }
 }
 
 
 void IncrementalMarking::SpeedUp() {
   bool speed_up = false;
 
   if ((steps_count_ % kMarkingSpeedAccellerationInterval) == 0) {
@@ skipping 183 matching lines @@
 void IncrementalMarking::IncrementIdleMarkingDelayCounter() {
   idle_marking_delay_counter_++;
 }
 
 
 void IncrementalMarking::ClearIdleMarkingDelayCounter() {
   idle_marking_delay_counter_ = 0;
 }
 }
 }  // namespace v8::internal