317       region_space_(nullptr),  in Heap()
559     region_space_ = space::RegionSpace::Create(  in Heap()
561     AddSpace(region_space_);  in Heap()
714       DCHECK(region_space_ != nullptr);  in Heap()
715       concurrent_copying_collector_->SetRegionSpace(region_space_);  in Heap()
717         young_concurrent_copying_collector_->SetRegionSpace(region_space_);  in Heap()
1398       space = region_space_;  in ThrowOutOfMemoryError()
1530   if (region_space_ != nullptr) {  in TrimSpaces()
1531     total_alloc_space_allocated -= region_space_->GetBytesAllocated();  in TrimSpaces()
1574   if (region_space_ != nullptr && region_space_->HasAddress(obj.Ptr())) {  in IsLiveObjectLocked()
2349         zygote_collector.SetFromSpace(region_space_);  in PreZygoteFork()
2378         region_space_->GetMemMap()->Protect(PROT_READ | PROT_WRITE);  in PreZygoteFork()
2380         region_space_->GetMarkBitmap()->Clear();  in PreZygoteFork()
2647           DCHECK(active_concurrent_copying_collector_->RegionSpace() == region_space_);  in CollectGarbageInternal()
3629     DCHECK(region_space_ != nullptr);  in ClampGrowthLimit()
3631     region_space_->ClampGrowthLimit(2 * capacity_);  in ClampGrowthLimit()
3845   if (region_space_ != nullptr) {  in RevokeThreadLocalBuffers()
3846     CHECK_EQ(region_space_->RevokeThreadLocalBuffers(thread), 0U);  in RevokeThreadLocalBuffers()
3869   if (region_space_ != nullptr) {  in RevokeAllThreadLocalBuffers()
3870     CHECK_EQ(region_space_->RevokeAllThreadLocalBuffers(), 0U);  in RevokeAllThreadLocalBuffers()
4206     DCHECK(region_space_ != nullptr);  in AllocWithNewTLAB()
4216         if (!region_space_->AllocNewTlab(self, new_tlab_size, bytes_tl_bulk_allocated)) {  in AllocWithNewTLAB()
4218           return region_space_->AllocNonvirtual<false>(alloc_size,  in AllocWithNewTLAB()
4227           return region_space_->AllocNonvirtual<false>(alloc_size,  in AllocWithNewTLAB()
4238         return region_space_->AllocNonvirtual<false>(alloc_size,  in AllocWithNewTLAB()