| Index: src/flag-definitions.h | 
| diff --git a/src/flag-definitions.h b/src/flag-definitions.h | 
| index 5ee4168250013ed6a623a164f5949a36270e4e03..11c6f64865e0a0b3bc1a6e78e1a15195f2edc4c1 100644 | 
| --- a/src/flag-definitions.h | 
| +++ b/src/flag-definitions.h | 
| @@ -687,6 +687,7 @@ DEFINE_INT(min_progress_during_incremental_marking_finalization, 32, | 
| "least this many unmarked objects") | 
| DEFINE_INT(max_incremental_marking_finalization_rounds, 3, | 
| "at most try this many times to finalize incremental marking") | 
| +DEFINE_BOOL(black_allocation, true, "use black allocation") | 
| DEFINE_BOOL(concurrent_sweeping, true, "use concurrent sweeping") | 
| DEFINE_BOOL(parallel_compaction, true, "use parallel compaction") | 
| DEFINE_BOOL(parallel_pointer_update, true, | 
|  |