blob: 670fd1a73d0d776ebe8d61a5b517007a09506163 [file] [log] [blame]
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// Don't use USING_DBC outside of this file.
#if defined(TARGET_ARCH_DBC)
#define USING_DBC true
#define USING_DBC false
// Don't use USING_MULTICORE outside of this file.
#if defined(ARCH_IS_MULTI_CORE)
#define USING_MULTICORE true
#define USING_MULTICORE false
// Don't use USING_PRODUCT outside of this file.
#if defined(PRODUCT)
#define USING_PRODUCT true
#define USING_PRODUCT false
constexpr bool kDartPrecompiledRuntime = true;
constexpr bool kDartPrecompiledRuntime = false;
// List of all flags in the VM.
// Flags can be one of three categories:
// * P roduct flags: Can be set in any of the deployment modes, including in
// production.
// * R elease flags: Generally available flags except when building product.
// * D ebug flags: Can only be set in debug VMs, which also have C++ assertions
// enabled.
// * pre C ompile flags: Generally available flags except when building product
// or precompiled runtime.
// Usage:
// P(name, type, default_value, comment)
// R(name, product_value, type, default_value, comment)
// D(name, type, default_value, comment)
// C(name, precompiled_value, product_value, type, default_value, comment)
#define FLAG_LIST(P, R, D, C) \
P(abort_on_oom, bool, false, \
"Abort if memory allocation fails - use only with --old-gen-heap-size") \
C(async_debugger, false, false, bool, true, \
"Debugger support async functions.") \
P(background_compilation, bool, USING_MULTICORE, \
"Run optimizing compilation in background") \
R(background_compilation_stop_alot, false, bool, false, \
"Stress test system: stop background compiler often.") \
P(causal_async_stacks, bool, !USING_PRODUCT, "Improved async stacks") \
P(collect_code, bool, true, "Attempt to GC infrequently used code.") \
P(collect_dynamic_function_names, bool, true, \
"Collects all dynamic function names to identify unique targets") \
P(compactor_tasks, int, 2, \
"The number of tasks to use for parallel compaction.") \
P(concurrent_sweep, bool, USING_MULTICORE, \
"Concurrent sweep for old generation.") \
R(dedup_instructions, true, bool, false, \
"Canonicalize instructions when precompiling.") \
C(deoptimize_alot, false, false, bool, false, \
"Deoptimizes we are about to return to Dart code from native entries.") \
C(deoptimize_every, 0, 0, int, 0, \
"Deoptimize on every N stack overflow checks") \
R(disable_alloc_stubs_after_gc, false, bool, false, "Stress testing flag.") \
R(disassemble, false, bool, false, "Disassemble dart code.") \
R(disassemble_optimized, false, bool, false, "Disassemble optimized code.") \
R(dump_megamorphic_stats, false, bool, false, \
"Dump megamorphic cache statistics") \
R(dump_symbol_stats, false, bool, false, "Dump symbol table statistics") \
P(dwarf_stack_traces, bool, false, \
"Emit DWARF line number and inlining info" \
"in dylib snapshots and don't symbolize stack traces.") \
R(enable_asserts, false, bool, false, "Enable assert statements.") \
P(enable_kernel_expression_compilation, bool, true, \
"Compile expressions with the Kernel front-end.") \
P(enable_mirrors, bool, true, \
"Disable to make importing dart:mirrors an error.") \
R(enable_type_checks, false, bool, false, "Enable type checks.") \
R(error_on_bad_override, false, bool, false, \
"Report error for bad overrides. Ignored in strong mode.") \
R(error_on_bad_type, false, bool, false, \
"Report error for malformed types.") \
P(fields_may_be_reset, bool, false, \
"Don't optimize away static field initialization") \
C(force_clone_compiler_objects, false, false, bool, false, \
"Force cloning of objects needed in compiler (ICData and Field).") \
R(gc_at_alloc, false, bool, false, "GC at every allocation.") \
P(getter_setter_ratio, int, 13, \
"Ratio of getter/setter usage used for double field unboxing heuristics") \
P(guess_icdata_cid, bool, true, \
"Artificially create type feedback for arithmetic etc. operations") \
P(huge_method_cutoff_in_tokens, int, 20000, \
"Huge method cutoff in tokens: Disables optimizations for huge methods.") \
P(idle_timeout_micros, int, 1000 * kMicrosecondsPerMillisecond, \
"Consider thread pool isolates for idle tasks after this long.") \
P(idle_duration_micros, int, 500 * kMicrosecondsPerMillisecond, \
"Allow idle tasks to run for this long.") \
P(interpret_irregexp, bool, USING_DBC, "Use irregexp bytecode interpreter") \
P(lazy_dispatchers, bool, true, "Generate dispatchers lazily") \
P(link_natives_lazily, bool, false, "Link native calls lazily") \
C(load_deferred_eagerly, true, true, bool, false, \
"Load deferred libraries eagerly.") \
R(log_marker_tasks, false, bool, false, \
"Log debugging information for old gen GC marking tasks.") \
R(marker_tasks, USING_MULTICORE ? 2 : 0, int, USING_MULTICORE ? 2 : 0, \
"The number of tasks to spawn during old gen GC marking (0 means " \
"perform all marking on main thread).") \
P(max_polymorphic_checks, int, 4, \
"Maximum number of polymorphic check, otherwise it is megamorphic.") \
P(max_equality_polymorphic_checks, int, 32, \
"Maximum number of polymorphic checks in equality operator,") \
P(new_gen_semi_max_size, int, (kWordSize <= 4) ? 8 : 16, \
"Max size of new gen semi space in MB") \
P(new_gen_semi_initial_size, int, (kWordSize <= 4) ? 1 : 2, \
"Initial size of new gen semi space in MB") \
P(optimization_counter_threshold, int, 30000, \
"Function's usage-counter value before it is optimized, -1 means never") \
P(old_gen_heap_size, int, kDefaultMaxOldGenHeapSize, \
"Max size of old gen heap size in MB, or 0 for unlimited," \
"e.g: --old_gen_heap_size=1024 allows up to 1024MB old gen heap") \
R(pause_isolates_on_start, false, bool, false, \
"Pause isolates before starting.") \
R(pause_isolates_on_exit, false, bool, false, "Pause isolates exiting.") \
R(pause_isolates_on_unhandled_exceptions, false, bool, false, \
"Pause isolates on unhandled exceptions.") \
P(polymorphic_with_deopt, bool, true, \
"Polymorphic calls with deoptimization / megamorphic call") \
P(precompiled_mode, bool, false, "Precompilation compiler mode") \
P(print_precompiler_entry_points, charp, NULL, \
"Print entry points and info about recognized methods used by " \
"precompiler.") \
P(print_snapshot_sizes, bool, false, "Print sizes of generated snapshots.") \
P(print_snapshot_sizes_verbose, bool, false, \
"Print cluster sizes of generated snapshots.") \
P(print_benchmarking_metrics, bool, false, \
"Print additional memory and latency metrics for benchmarking.") \
R(print_ssa_liveranges, false, bool, false, \
"Print live ranges after allocation.") \
R(print_stacktrace_at_api_error, false, bool, false, \
"Attempt to print a native stack trace when an API error is created.") \
C(print_stop_message, false, false, bool, false, "Print stop message.") \
D(print_variable_descriptors, bool, false, \
"Print variable descriptors in disassembly.") \
R(profiler, false, bool, false, "Enable the profiler.") \
R(profiler_native_memory, false, bool, false, \
"Enable native memory statistic collection.") \
P(reify_generic_functions, bool, false, \
"Enable reification of generic functions (not yet supported).") \
P(reorder_basic_blocks, bool, true, "Reorder basic blocks") \
C(stress_async_stacks, false, false, bool, false, \
"Stress test async stack traces") \
P(strong, bool, false, "Enable strong mode.") \
P(sync_async, bool, false, "Start `async` functions synchronously.") \
R(support_ast_printer, false, bool, true, "Support the AST printer.") \
R(support_compiler_stats, false, bool, true, "Support compiler stats.") \
R(support_disassembler, false, bool, true, "Support the disassembler.") \
R(support_il_printer, false, bool, true, "Support the IL printer.") \
C(support_reload, false, false, bool, true, "Support isolate reload.") \
R(support_service, false, bool, true, "Support the service protocol.") \
R(support_timeline, false, bool, true, "Support timeline.") \
D(trace_cha, bool, false, "Trace CHA operations") \
D(trace_field_guards, bool, false, "Trace changes in field's cids.") \
C(trace_irregexp, false, false, bool, false, "Trace irregexps.") \
D(trace_isolates, bool, false, "Trace isolate creation and shut down.") \
D(trace_handles, bool, false, "Traces allocation of handles.") \
D(trace_kernel_binary, bool, false, "Trace Kernel reader/writer.") \
D(trace_optimization, bool, false, "Print optimization details.") \
R(trace_profiler, false, bool, false, "Profiler trace") \
D(trace_profiler_verbose, bool, false, "Verbose profiler trace") \
D(trace_ssa_allocator, bool, false, "Trace register allocation over SSA.") \
P(trace_strong_mode_types, bool, false, \
"Trace optimizations based on strong mode types.") \
D(trace_zones, bool, false, "Traces allocation sizes in the zone.") \
P(truncating_left_shift, bool, true, \
"Optimize left shift to truncate if possible") \
P(use_compactor, bool, false, "Compact the heap during old-space GC.") \
P(use_cha_deopt, bool, true, \
"Use class hierarchy analysis even if it can cause deoptimization.") \
P(use_field_guards, bool, !USING_DBC, \
"Use field guards and track field types") \
C(use_osr, false, true, bool, true, "Use OSR") \
P(use_strong_mode_types, bool, true, "Optimize based on strong mode types.") \
R(verbose_gc, false, bool, false, "Enables verbose GC.") \
R(verbose_gc_hdr, 40, int, 40, "Print verbose GC header interval.") \
R(verify_after_gc, false, bool, false, \
"Enables heap verification after GC.") \
R(verify_before_gc, false, bool, false, \
"Enables heap verification before GC.") \
D(verify_gc_contains, bool, false, \
"Enables verification of address contains during GC.") \
D(verify_on_transition, bool, false, "Verify on dart <==> VM.") \
P(enable_slow_path_sharing, bool, true, "Enable sharing of slow-path code.") \
P(shared_slow_path_triggers_gc, bool, false, \
"TESTING: slow-path triggers a GC.")