@@ -75,13 +75,17 @@ If set to 1 then colors will not be used in the REPL.
7575
7676 --use_strict (enforce strict mode)
7777 type: bool default: false
78+ --use_strong (enforce strong mode)
79+ type: bool default: false
80+ --strong_mode (experimental strong language mode)
81+ type: bool default: false
7882 --es_staging (enable all completed harmony features)
7983 type: bool default: false
8084 --harmony (enable all completed harmony features)
8185 type: bool default: false
8286 --harmony_shipping (enable all shipped harmony features)
8387 type: bool default: true
84- --harmony_modules (enable "harmony modules (implies block scoping) " (in progress))
88+ --harmony_modules (enable "harmony modules" (in progress))
8589 type: bool default: false
8690 --harmony_arrays (enable "harmony array methods" (in progress))
8791 type: bool default: false
@@ -97,20 +101,22 @@ If set to 1 then colors will not be used in the REPL.
97101 type: bool default: false
98102 --harmony_unicode (enable "harmony unicode escapes" (in progress))
99103 type: bool default: false
104+ --harmony_unicode_regexps (enable "harmony unicode regexps" (in progress))
105+ type: bool default: false
106+ --harmony_rest_parameters (enable "harmony rest parameters" (in progress))
107+ type: bool default: false
108+ --harmony_reflect (enable "harmony Reflect API" (in progress))
109+ type: bool default: false
110+ --harmony_computed_property_names (enable "harmony computed property names")
111+ type: bool default: false
100112 --harmony_tostring (enable "harmony toString")
101113 type: bool default: false
102114 --harmony_numeric_literals (enable "harmony numeric literals")
103115 type: bool default: true
104- --harmony_strings (enable "harmony string methods")
105- type: bool default: true
106- --harmony_scoping (enable "harmony block scoping")
107- type: bool default: true
108- --harmony_classes (enable "harmony classes (implies block scoping & object literal extension)")
116+ --harmony_classes (enable "harmony classes (implies object literal extension)")
109117 type: bool default: true
110118 --harmony_object_literals (enable "harmony object literal extensions")
111119 type: bool default: true
112- --harmony_templates (enable "harmony template literals")
113- type: bool default: true
114120 --compiled_keyed_generic_loads (use optimizing compiler to generate keyed generic load stubs)
115121 type: bool default: false
116122 --pretenuring_call_new (pretenure call new)
@@ -179,6 +185,8 @@ If set to 1 then colors will not be used in the REPL.
179185 type: bool default: false
180186 --trace_check_elimination (trace check elimination phase)
181187 type: bool default: false
188+ --trace_environment_liveness (trace liveness of local variable slots)
189+ type: bool default: false
182190 --trace_hydrogen (trace generated hydrogen to file)
183191 type: bool default: false
184192 --trace_hydrogen_filter (hydrogen tracing filter)
@@ -284,7 +292,7 @@ If set to 1 then colors will not be used in the REPL.
284292 --concurrent_recompilation (optimizing hot functions asynchronously on a separate thread)
285293 type: bool default: true
286294 --job_based_recompilation (post tasks to v8::Platform instead of using a thread for concurrent recompilation)
287- type: bool default: false
295+ type: bool default: true
288296 --trace_concurrent_recompilation (track concurrent recompilation)
289297 type: bool default: false
290298 --concurrent_recompilation_queue_length (the length of the concurrent compilation queue)
@@ -319,8 +327,12 @@ If set to 1 then colors will not be used in the REPL.
319327 type: bool default: false
320328 --turbo_stats (print TurboFan statistics)
321329 type: bool default: false
330+ --turbo_splitting (split nodes during scheduling in TurboFan)
331+ type: bool default: true
322332 --turbo_types (use typed lowering in TurboFan)
323333 type: bool default: true
334+ --turbo_type_feedback (use type feedback in TurboFan)
335+ type: bool default: false
324336 --turbo_source_positions (track source code positions when building TurboFan IR)
325337 type: bool default: false
326338 --context_specialization (enable context specialization in TurboFan)
@@ -329,21 +341,29 @@ If set to 1 then colors will not be used in the REPL.
329341 type: bool default: false
330342 --turbo_inlining (enable inlining in TurboFan)
331343 type: bool default: false
332- --turbo_inlining_intrinsics (enable inlining of intrinsics in TurboFan)
333- type: bool default: false
344+ --turbo_builtin_inlining (enable builtin inlining in TurboFan)
345+ type: bool default: true
334346 --trace_turbo_inlining (trace TurboFan inlining)
335347 type: bool default: false
336348 --loop_assignment_analysis (perform loop assignment analysis)
337349 type: bool default: true
338350 --turbo_profiling (enable profiling in TurboFan)
339351 type: bool default: false
340- --turbo_reuse_spill_slots (reuse spill slots in TurboFan)
341- type: bool default: true
342352 --turbo_delay_ssa_decon (delay ssa deconstruction in TurboFan register allocator)
343353 type: bool default: false
354+ --turbo_verify_allocation (verify register allocation in TurboFan)
355+ type: bool default: false
344356 --turbo_move_optimization (optimize gap moves in TurboFan)
345357 type: bool default: true
346- --turbo_jt (enable jump threading)
358+ --turbo_jt (enable jump threading in TurboFan)
359+ type: bool default: true
360+ --turbo_osr (enable OSR in TurboFan)
361+ type: bool default: true
362+ --turbo_exceptions (enable exception handling in TurboFan)
363+ type: bool default: false
364+ --turbo_stress_loop_peeling (stress loop peeling optimization)
365+ type: bool default: false
366+ --turbo_cf_optimization (optimize control flow in TurboFan)
347367 type: bool default: true
348368 --typed_array_max_size_in_heap (threshold for in-heap typed array)
349369 type: int default: 64
@@ -393,8 +413,10 @@ If set to 1 then colors will not be used in the REPL.
393413 type: bool default: true
394414 --enable_vldr_imm (enable use of constant pools for double immediate (ARM only))
395415 type: bool default: false
396- --force_long_branches (force all emitted branches to be in long mode (MIPS only))
416+ --force_long_branches (force all emitted branches to be in long mode (MIPS/PPC only))
397417 type: bool default: false
418+ --mcpu (enable optimization for specific cpu)
419+ type: string default: auto
398420 --expose_natives_as (expose natives in global object)
399421 type: string default: NULL
400422 --expose_debug_as (expose debug in global object)
@@ -444,7 +466,7 @@ If set to 1 then colors will not be used in the REPL.
444466 --serialize_toplevel (enable caching of toplevel scripts)
445467 type: bool default: true
446468 --serialize_inner (enable caching of inner functions)
447- type: bool default: false
469+ type: bool default: true
448470 --trace_serializer (print code serializer trace)
449471 type: bool default: false
450472 --min_preparse_length (minimum length for automatic enable preparsing)
@@ -495,6 +517,8 @@ If set to 1 then colors will not be used in the REPL.
495517 type: bool default: false
496518 --gc_interval (garbage collect after <n> allocations)
497519 type: int default: -1
520+ --retain_maps_for_n_gc (keeps maps alive for <n> old space garbage collections)
521+ type: int default: 2
498522 --trace_gc (print one trace line following each garbage collection)
499523 type: bool default: false
500524 --trace_gc_nvp (print one detailed trace line in name=value format after each garbage collection)
@@ -511,7 +535,9 @@ If set to 1 then colors will not be used in the REPL.
511535 type: bool default: false
512536 --trace_gc_verbose (print more details following each garbage collection)
513537 type: bool default: false
514- --trace_fragmentation (report fragmentation for old pointer and data pages)
538+ --trace_fragmentation (report fragmentation for old space)
539+ type: bool default: false
540+ --trace_fragmentation_verbose (report fragmentation for old space (detailed))
515541 type: bool default: false
516542 --collect_maps (garbage collect maps from which no objects can be reached)
517543 type: bool default: true
@@ -531,12 +557,22 @@ If set to 1 then colors will not be used in the REPL.
531557 type: bool default: true
532558 --incremental_marking_steps (do incremental marking steps)
533559 type: bool default: true
560+ --overapproximate_weak_closure (overapproximate weak closer to reduce atomic pause time)
561+ type: bool default: true
562+ --min_progress_during_object_groups_marking (keep overapproximating the weak closure as long as we discover at least this many unmarked objects)
563+ type: int default: 128
564+ --max_object_groups_marking_rounds (at most try this many times to over approximate the weak closure)
565+ type: int default: 3
534566 --concurrent_sweeping (use concurrent sweeping)
535567 type: bool default: true
536568 --trace_incremental_marking (trace progress of the incremental marking)
537569 type: bool default: false
538570 --track_gc_object_stats (track object counts and memory usage)
539571 type: bool default: false
572+ --track_detached_contexts (track native contexts that are expected to be garbage collected)
573+ type: bool default: true
574+ --trace_detached_contexts (trace native contexts that are expected to be garbage collected)
575+ type: bool default: false
540576 --heap_profiler_trace_objects (Dump heap object allocations/movements/size_updates)
541577 type: bool default: false
542578 --use_idle_notification (Use idle notification to reduce memory footprint.)
@@ -625,6 +661,12 @@ If set to 1 then colors will not be used in the REPL.
625661 type: bool default: false
626662 --predictable (enable predictable mode)
627663 type: bool default: false
664+ --force_marking_deque_overflows (force overflows of marking deque by reducing it's size to 64 words)
665+ type: bool default: false
666+ --stress_compaction (stress the GC compactor to flush out bugs (implies --force_marking_deque_overflows))
667+ type: bool default: false
668+ --manual_evacuation_candidates_selection (Test mode only flag. It allows an unit test to select evacuation candidates pages (requires --stress_compaction).)
669+ type: bool default: false
628670 --help (Print usage message, including flags, on console)
629671 type: bool default: true
630672 --dump_counters (Dump counters on exit)
@@ -635,18 +677,6 @@ If set to 1 then colors will not be used in the REPL.
635677 type: string default:
636678 --js_arguments (Pass all remaining arguments to the script. Alias for "--".)
637679 type: arguments default:
638- --gdbjit (enable GDBJIT interface (disables compacting GC))
639- type: bool default: false
640- --gdbjit_full (enable GDBJIT interface for all code objects)
641- type: bool default: false
642- --gdbjit_dump (dump elf objects with debug info to disk)
643- type: bool default: false
644- --gdbjit_dump_filter (dump only objects containing this substring)
645- type: string default:
646- --force_marking_deque_overflows (force overflows of marking deque by reducing it's size to 64 words)
647- type: bool default: false
648- --stress_compaction (stress the GC compactor to flush out bugs (implies --force_marking_deque_overflows))
649- type: bool default: false
650680 --log (Minimal logging (no API, code, GC, suspect, or handles samples).)
651681 type: bool default: false
652682 --log_all (Log all events to the log file.)
@@ -665,6 +695,8 @@ If set to 1 then colors will not be used in the REPL.
665695 type: bool default: false
666696 --prof (Log statistical profiling information (implies --log-code).)
667697 type: bool default: false
698+ --prof_cpp (Like --prof, but ignore generated code.)
699+ type: bool default: false
668700 --prof_browser_mode (Used with --prof, turns on browser-compatible mode for profiling.)
669701 type: bool default: true
670702 --log_regexp (Log regular expression execution.)
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