Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 4 | |
| 5 | // This file defines all of the flags. It is separated into different section, |
| 6 | // for Debug, Release, Logging and Profiling, etc. To add a new flag, find the |
| 7 | // correct section, and use one of the DEFINE_ macros, without a trailing ';'. |
| 8 | // |
| 9 | // This include does not have a guard, because it is a template-style include, |
| 10 | // which can be included multiple times in different modes. It expects to have |
| 11 | // a mode defined before it's included. The modes are FLAG_MODE_... below: |
| 12 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 13 | #define DEFINE_IMPLICATION(whenflag, thenflag) \ |
| 14 | DEFINE_VALUE_IMPLICATION(whenflag, thenflag, true) |
| 15 | |
| 16 | #define DEFINE_NEG_IMPLICATION(whenflag, thenflag) \ |
| 17 | DEFINE_VALUE_IMPLICATION(whenflag, thenflag, false) |
| 18 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 19 | // We want to declare the names of the variables for the header file. Normally |
| 20 | // this will just be an extern declaration, but for a readonly flag we let the |
| 21 | // compiler make better optimizations by giving it the value. |
| 22 | #if defined(FLAG_MODE_DECLARE) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 23 | #define FLAG_FULL(ftype, ctype, nam, def, cmt) extern ctype FLAG_##nam; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 24 | #define FLAG_READONLY(ftype, ctype, nam, def, cmt) \ |
| 25 | static ctype const FLAG_##nam = def; |
| 26 | |
| 27 | // We want to supply the actual storage and value for the flag variable in the |
| 28 | // .cc file. We only do this for writable flags. |
| 29 | #elif defined(FLAG_MODE_DEFINE) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 30 | #define FLAG_FULL(ftype, ctype, nam, def, cmt) ctype FLAG_##nam = def; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 31 | |
| 32 | // We need to define all of our default values so that the Flag structure can |
| 33 | // access them by pointer. These are just used internally inside of one .cc, |
| 34 | // for MODE_META, so there is no impact on the flags interface. |
| 35 | #elif defined(FLAG_MODE_DEFINE_DEFAULTS) |
| 36 | #define FLAG_FULL(ftype, ctype, nam, def, cmt) \ |
| 37 | static ctype const FLAGDEFAULT_##nam = def; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 38 | |
| 39 | // We want to write entries into our meta data table, for internal parsing and |
| 40 | // printing / etc in the flag parser code. We only do this for writable flags. |
| 41 | #elif defined(FLAG_MODE_META) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 42 | #define FLAG_FULL(ftype, ctype, nam, def, cmt) \ |
| 43 | { Flag::TYPE_##ftype, #nam, &FLAG_##nam, &FLAGDEFAULT_##nam, cmt, false } \ |
| 44 | , |
| 45 | #define FLAG_ALIAS(ftype, ctype, alias, nam) \ |
| 46 | { \ |
| 47 | Flag::TYPE_##ftype, #alias, &FLAG_##nam, &FLAGDEFAULT_##nam, \ |
| 48 | "alias for --" #nam, false \ |
| 49 | } \ |
| 50 | , |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 51 | |
| 52 | // We produce the code to set flags when it is implied by another flag. |
| 53 | #elif defined(FLAG_MODE_DEFINE_IMPLICATIONS) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 54 | #define DEFINE_VALUE_IMPLICATION(whenflag, thenflag, value) \ |
| 55 | if (FLAG_##whenflag) FLAG_##thenflag = value; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 56 | |
| 57 | #else |
| 58 | #error No mode supplied when including flags.defs |
| 59 | #endif |
| 60 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 61 | // Dummy defines for modes where it is not relevant. |
| 62 | #ifndef FLAG_FULL |
| 63 | #define FLAG_FULL(ftype, ctype, nam, def, cmt) |
| 64 | #endif |
| 65 | |
| 66 | #ifndef FLAG_READONLY |
| 67 | #define FLAG_READONLY(ftype, ctype, nam, def, cmt) |
| 68 | #endif |
| 69 | |
| 70 | #ifndef FLAG_ALIAS |
| 71 | #define FLAG_ALIAS(ftype, ctype, alias, nam) |
| 72 | #endif |
| 73 | |
| 74 | #ifndef DEFINE_VALUE_IMPLICATION |
| 75 | #define DEFINE_VALUE_IMPLICATION(whenflag, thenflag, value) |
| 76 | #endif |
| 77 | |
| 78 | #define COMMA , |
| 79 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 80 | #ifdef FLAG_MODE_DECLARE |
| 81 | // Structure used to hold a collection of arguments to the JavaScript code. |
| 82 | struct JSArguments { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 83 | public: |
| 84 | inline const char*& operator[](int idx) const { return argv[idx]; } |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 85 | static JSArguments Create(int argc, const char** argv) { |
| 86 | JSArguments args; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 87 | args.argc = argc; |
| 88 | args.argv = argv; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 89 | return args; |
| 90 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 91 | int argc; |
| 92 | const char** argv; |
| 93 | }; |
| 94 | |
| 95 | struct MaybeBoolFlag { |
| 96 | static MaybeBoolFlag Create(bool has_value, bool value) { |
| 97 | MaybeBoolFlag flag; |
| 98 | flag.has_value = has_value; |
| 99 | flag.value = value; |
| 100 | return flag; |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 101 | } |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 102 | bool has_value; |
| 103 | bool value; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 104 | }; |
| 105 | #endif |
| 106 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 107 | #if (defined CAN_USE_VFP3_INSTRUCTIONS) || !(defined ARM_TEST_NO_FEATURE_PROBE) |
| 108 | #define ENABLE_VFP3_DEFAULT true |
| 109 | #else |
| 110 | #define ENABLE_VFP3_DEFAULT false |
| 111 | #endif |
| 112 | #if (defined CAN_USE_ARMV7_INSTRUCTIONS) || !(defined ARM_TEST_NO_FEATURE_PROBE) |
| 113 | #define ENABLE_ARMV7_DEFAULT true |
| 114 | #else |
| 115 | #define ENABLE_ARMV7_DEFAULT false |
| 116 | #endif |
| 117 | #if (defined CAN_USE_VFP32DREGS) || !(defined ARM_TEST_NO_FEATURE_PROBE) |
| 118 | #define ENABLE_32DREGS_DEFAULT true |
| 119 | #else |
| 120 | #define ENABLE_32DREGS_DEFAULT false |
| 121 | #endif |
| 122 | #if (defined CAN_USE_NEON) || !(defined ARM_TEST_NO_FEATURE_PROBE) |
| 123 | # define ENABLE_NEON_DEFAULT true |
| 124 | #else |
| 125 | # define ENABLE_NEON_DEFAULT false |
| 126 | #endif |
| 127 | |
| 128 | #define DEFINE_BOOL(nam, def, cmt) FLAG(BOOL, bool, nam, def, cmt) |
| 129 | #define DEFINE_MAYBE_BOOL(nam, cmt) \ |
| 130 | FLAG(MAYBE_BOOL, MaybeBoolFlag, nam, {false COMMA false}, cmt) |
| 131 | #define DEFINE_INT(nam, def, cmt) FLAG(INT, int, nam, def, cmt) |
| 132 | #define DEFINE_FLOAT(nam, def, cmt) FLAG(FLOAT, double, nam, def, cmt) |
| 133 | #define DEFINE_STRING(nam, def, cmt) FLAG(STRING, const char*, nam, def, cmt) |
| 134 | #define DEFINE_ARGS(nam, cmt) FLAG(ARGS, JSArguments, nam, {0 COMMA NULL}, cmt) |
| 135 | |
| 136 | #define DEFINE_ALIAS_BOOL(alias, nam) FLAG_ALIAS(BOOL, bool, alias, nam) |
| 137 | #define DEFINE_ALIAS_INT(alias, nam) FLAG_ALIAS(INT, int, alias, nam) |
| 138 | #define DEFINE_ALIAS_FLOAT(alias, nam) FLAG_ALIAS(FLOAT, double, alias, nam) |
| 139 | #define DEFINE_ALIAS_STRING(alias, nam) \ |
| 140 | FLAG_ALIAS(STRING, const char*, alias, nam) |
| 141 | #define DEFINE_ALIAS_ARGS(alias, nam) FLAG_ALIAS(ARGS, JSArguments, alias, nam) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 142 | |
| 143 | // |
| 144 | // Flags in all modes. |
| 145 | // |
| 146 | #define FLAG FLAG_FULL |
| 147 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 148 | // Flags for language modes and experimental language features. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 149 | DEFINE_BOOL(use_strict, false, "enforce strict mode") |
| 150 | DEFINE_BOOL(es_staging, false, "enable upcoming ES6+ features") |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 151 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 152 | DEFINE_BOOL(harmony_scoping, false, "enable harmony block scoping") |
| 153 | DEFINE_BOOL(harmony_modules, false, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 154 | "enable harmony modules (implies block scoping)") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 155 | DEFINE_BOOL(harmony_proxies, false, "enable harmony proxies") |
| 156 | DEFINE_BOOL(harmony_numeric_literals, false, |
| 157 | "enable harmony numeric literals (0o77, 0b11)") |
| 158 | DEFINE_BOOL(harmony_strings, false, "enable harmony string") |
| 159 | DEFINE_BOOL(harmony_arrays, false, "enable harmony arrays") |
| 160 | DEFINE_BOOL(harmony_arrow_functions, false, "enable harmony arrow functions") |
| 161 | DEFINE_BOOL(harmony_classes, false, "enable harmony classes") |
| 162 | DEFINE_BOOL(harmony_object_literals, false, |
| 163 | "enable harmony object literal extensions") |
| 164 | DEFINE_BOOL(harmony_regexps, false, "enable regexp-related harmony features") |
| 165 | DEFINE_BOOL(harmony, false, "enable all harmony features (except proxies)") |
| 166 | |
| 167 | DEFINE_IMPLICATION(harmony, harmony_scoping) |
| 168 | DEFINE_IMPLICATION(harmony, harmony_modules) |
| 169 | // TODO(rossberg): Reenable when problems are sorted out. |
| 170 | // DEFINE_IMPLICATION(harmony, harmony_proxies) |
| 171 | DEFINE_IMPLICATION(harmony, harmony_numeric_literals) |
| 172 | DEFINE_IMPLICATION(harmony, harmony_strings) |
| 173 | DEFINE_IMPLICATION(harmony, harmony_arrays) |
| 174 | DEFINE_IMPLICATION(harmony, harmony_arrow_functions) |
| 175 | DEFINE_IMPLICATION(harmony, harmony_classes) |
| 176 | DEFINE_IMPLICATION(harmony, harmony_object_literals) |
| 177 | DEFINE_IMPLICATION(harmony, harmony_regexps) |
| 178 | DEFINE_IMPLICATION(harmony_modules, harmony_scoping) |
| 179 | DEFINE_IMPLICATION(harmony_classes, harmony_scoping) |
| 180 | DEFINE_IMPLICATION(harmony_classes, harmony_object_literals) |
| 181 | |
| 182 | DEFINE_IMPLICATION(harmony, es_staging) |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 183 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 184 | // Flags for experimental implementation features. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 185 | DEFINE_BOOL(compiled_keyed_generic_loads, false, |
| 186 | "use optimizing compiler to generate keyed generic load stubs") |
| 187 | DEFINE_BOOL(clever_optimizations, true, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 188 | "Optimize object size, Array shift, DOM strings and string +") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 189 | // TODO(hpayer): We will remove this flag as soon as we have pretenuring |
| 190 | // support for specific allocation sites. |
| 191 | DEFINE_BOOL(pretenuring_call_new, false, "pretenure call new") |
| 192 | DEFINE_BOOL(allocation_site_pretenuring, true, |
| 193 | "pretenure with allocation sites") |
| 194 | DEFINE_BOOL(trace_pretenuring, false, |
| 195 | "trace pretenuring decisions of HAllocate instructions") |
| 196 | DEFINE_BOOL(trace_pretenuring_statistics, false, |
| 197 | "trace allocation site pretenuring statistics") |
| 198 | DEFINE_BOOL(track_fields, true, "track fields with only smi values") |
| 199 | DEFINE_BOOL(track_double_fields, true, "track fields with double values") |
| 200 | DEFINE_BOOL(track_heap_object_fields, true, "track fields with heap values") |
| 201 | DEFINE_BOOL(track_computed_fields, true, "track computed boilerplate fields") |
| 202 | DEFINE_IMPLICATION(track_double_fields, track_fields) |
| 203 | DEFINE_IMPLICATION(track_heap_object_fields, track_fields) |
| 204 | DEFINE_IMPLICATION(track_computed_fields, track_fields) |
| 205 | DEFINE_BOOL(track_field_types, true, "track field types") |
| 206 | DEFINE_IMPLICATION(track_field_types, track_fields) |
| 207 | DEFINE_IMPLICATION(track_field_types, track_heap_object_fields) |
| 208 | DEFINE_BOOL(smi_binop, true, "support smi representation in binary operations") |
| 209 | DEFINE_BOOL(vector_ics, false, "support vector-based ics") |
| 210 | |
| 211 | // Flags for optimization types. |
| 212 | DEFINE_BOOL(optimize_for_size, false, |
| 213 | "Enables optimizations which favor memory size over execution " |
| 214 | "speed.") |
| 215 | |
| 216 | DEFINE_VALUE_IMPLICATION(optimize_for_size, max_semi_space_size, 1) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 217 | |
| 218 | // Flags for data representation optimizations |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 219 | DEFINE_BOOL(unbox_double_arrays, true, "automatically unbox arrays of doubles") |
| 220 | DEFINE_BOOL(string_slices, true, "use string slices") |
Ben Murdoch | 5d4cdbf | 2012-04-11 10:23:59 +0100 | [diff] [blame] | 221 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 222 | // Flags for Crankshaft. |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 223 | DEFINE_BOOL(crankshaft, true, "use crankshaft") |
| 224 | DEFINE_STRING(hydrogen_filter, "*", "optimization filter") |
| 225 | DEFINE_BOOL(use_gvn, true, "use hydrogen global value numbering") |
| 226 | DEFINE_INT(gvn_iterations, 3, "maximum number of GVN fix-point iterations") |
| 227 | DEFINE_BOOL(use_canonicalizing, true, "use hydrogen instruction canonicalizing") |
| 228 | DEFINE_BOOL(use_inlining, true, "use function inlining") |
| 229 | DEFINE_BOOL(use_escape_analysis, true, "use hydrogen escape analysis") |
| 230 | DEFINE_BOOL(use_allocation_folding, true, "use allocation folding") |
| 231 | DEFINE_BOOL(use_local_allocation_folding, false, "only fold in basic blocks") |
| 232 | DEFINE_BOOL(use_write_barrier_elimination, true, |
| 233 | "eliminate write barriers targeting allocations in optimized code") |
| 234 | DEFINE_INT(max_inlining_levels, 5, "maximum number of inlining levels") |
| 235 | DEFINE_INT(max_inlined_source_size, 600, |
| 236 | "maximum source size in bytes considered for a single inlining") |
| 237 | DEFINE_INT(max_inlined_nodes, 196, |
| 238 | "maximum number of AST nodes considered for a single inlining") |
| 239 | DEFINE_INT(max_inlined_nodes_cumulative, 400, |
| 240 | "maximum cumulative number of AST nodes considered for inlining") |
| 241 | DEFINE_BOOL(loop_invariant_code_motion, true, "loop invariant code motion") |
| 242 | DEFINE_BOOL(fast_math, true, "faster (but maybe less accurate) math functions") |
| 243 | DEFINE_BOOL(collect_megamorphic_maps_from_stub_cache, true, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 244 | "crankshaft harvests type feedback from stub cache") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 245 | DEFINE_BOOL(hydrogen_stats, false, "print statistics for hydrogen") |
| 246 | DEFINE_BOOL(trace_check_elimination, false, "trace check elimination phase") |
| 247 | DEFINE_BOOL(trace_hydrogen, false, "trace generated hydrogen to file") |
| 248 | DEFINE_STRING(trace_hydrogen_filter, "*", "hydrogen tracing filter") |
| 249 | DEFINE_BOOL(trace_hydrogen_stubs, false, "trace generated hydrogen for stubs") |
| 250 | DEFINE_STRING(trace_hydrogen_file, NULL, "trace hydrogen to given file name") |
| 251 | DEFINE_STRING(trace_phase, "HLZ", "trace generated IR for specified phases") |
| 252 | DEFINE_BOOL(trace_inlining, false, "trace inlining decisions") |
| 253 | DEFINE_BOOL(trace_load_elimination, false, "trace load elimination") |
| 254 | DEFINE_BOOL(trace_store_elimination, false, "trace store elimination") |
| 255 | DEFINE_BOOL(trace_alloc, false, "trace register allocator") |
| 256 | DEFINE_BOOL(trace_all_uses, false, "trace all use positions") |
| 257 | DEFINE_BOOL(trace_range, false, "trace range analysis") |
| 258 | DEFINE_BOOL(trace_gvn, false, "trace global value numbering") |
| 259 | DEFINE_BOOL(trace_representation, false, "trace representation types") |
| 260 | DEFINE_BOOL(trace_removable_simulates, false, "trace removable simulates") |
| 261 | DEFINE_BOOL(trace_escape_analysis, false, "trace hydrogen escape analysis") |
| 262 | DEFINE_BOOL(trace_allocation_folding, false, "trace allocation folding") |
| 263 | DEFINE_BOOL(trace_track_allocation_sites, false, |
| 264 | "trace the tracking of allocation sites") |
| 265 | DEFINE_BOOL(trace_migration, false, "trace object migration") |
| 266 | DEFINE_BOOL(trace_generalization, false, "trace map generalization") |
| 267 | DEFINE_BOOL(stress_pointer_maps, false, "pointer map for every instruction") |
| 268 | DEFINE_BOOL(stress_environments, false, "environment for every instruction") |
| 269 | DEFINE_INT(deopt_every_n_times, 0, |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 270 | "deoptimize every n times a deopt point is passed") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 271 | DEFINE_INT(deopt_every_n_garbage_collections, 0, |
| 272 | "deoptimize every n garbage collections") |
| 273 | DEFINE_BOOL(print_deopt_stress, false, "print number of possible deopt points") |
| 274 | DEFINE_BOOL(trap_on_deopt, false, "put a break point before deoptimizing") |
| 275 | DEFINE_BOOL(trap_on_stub_deopt, false, |
| 276 | "put a break point before deoptimizing a stub") |
| 277 | DEFINE_BOOL(deoptimize_uncommon_cases, true, "deoptimize uncommon cases") |
| 278 | DEFINE_BOOL(polymorphic_inlining, true, "polymorphic inlining") |
| 279 | DEFINE_BOOL(use_osr, true, "use on-stack replacement") |
| 280 | DEFINE_BOOL(array_bounds_checks_elimination, true, |
| 281 | "perform array bounds checks elimination") |
| 282 | DEFINE_BOOL(trace_bce, false, "trace array bounds check elimination") |
| 283 | DEFINE_BOOL(array_bounds_checks_hoisting, false, |
| 284 | "perform array bounds checks hoisting") |
| 285 | DEFINE_BOOL(array_index_dehoisting, true, "perform array index dehoisting") |
| 286 | DEFINE_BOOL(analyze_environment_liveness, true, |
| 287 | "analyze liveness of environment slots and zap dead values") |
| 288 | DEFINE_BOOL(load_elimination, true, "use load elimination") |
| 289 | DEFINE_BOOL(check_elimination, true, "use check elimination") |
| 290 | DEFINE_BOOL(store_elimination, false, "use store elimination") |
| 291 | DEFINE_BOOL(dead_code_elimination, true, "use dead code elimination") |
| 292 | DEFINE_BOOL(fold_constants, true, "use constant folding") |
| 293 | DEFINE_BOOL(trace_dead_code_elimination, false, "trace dead code elimination") |
| 294 | DEFINE_BOOL(unreachable_code_elimination, true, "eliminate unreachable code") |
| 295 | DEFINE_BOOL(trace_osr, false, "trace on-stack replacement") |
| 296 | DEFINE_INT(stress_runs, 0, "number of stress runs") |
| 297 | DEFINE_BOOL(lookup_sample_by_shared, true, |
| 298 | "when picking a function to optimize, watch for shared function " |
| 299 | "info, not JSFunction itself") |
| 300 | DEFINE_BOOL(cache_optimized_code, true, "cache optimized code for closures") |
| 301 | DEFINE_BOOL(flush_optimized_code_cache, true, |
| 302 | "flushes the cache of optimized code for closures on every GC") |
| 303 | DEFINE_BOOL(inline_construct, true, "inline constructor calls") |
| 304 | DEFINE_BOOL(inline_arguments, true, "inline functions with arguments object") |
| 305 | DEFINE_BOOL(inline_accessors, true, "inline JavaScript accessors") |
| 306 | DEFINE_INT(escape_analysis_iterations, 2, |
| 307 | "maximum number of escape analysis fix-point iterations") |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 308 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 309 | DEFINE_BOOL(optimize_for_in, true, "optimize functions containing for-in loops") |
| 310 | DEFINE_BOOL(opt_safe_uint32_operations, true, |
| 311 | "allow uint32 values on optimize frames if they are used only in " |
| 312 | "safe operations") |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 313 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 314 | DEFINE_BOOL(concurrent_recompilation, true, |
| 315 | "optimizing hot functions asynchronously on a separate thread") |
| 316 | DEFINE_BOOL(trace_concurrent_recompilation, false, |
| 317 | "track concurrent recompilation") |
| 318 | DEFINE_INT(concurrent_recompilation_queue_length, 8, |
| 319 | "the length of the concurrent compilation queue") |
| 320 | DEFINE_INT(concurrent_recompilation_delay, 0, |
| 321 | "artificial compilation delay in ms") |
| 322 | DEFINE_BOOL(block_concurrent_recompilation, false, |
| 323 | "block queued jobs until released") |
| 324 | DEFINE_BOOL(concurrent_osr, true, "concurrent on-stack replacement") |
| 325 | DEFINE_IMPLICATION(concurrent_osr, concurrent_recompilation) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 326 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 327 | DEFINE_BOOL(omit_map_checks_for_leaf_maps, true, |
| 328 | "do not emit check maps for constant values that have a leaf map, " |
| 329 | "deoptimize the optimized code if the layout of the maps changes.") |
| 330 | |
| 331 | // Flags for TurboFan. |
| 332 | DEFINE_STRING(turbo_filter, "~", "optimization filter for TurboFan compiler") |
| 333 | DEFINE_BOOL(trace_turbo, false, "trace generated TurboFan IR") |
| 334 | DEFINE_BOOL(trace_turbo_types, true, "trace generated TurboFan types") |
| 335 | DEFINE_BOOL(trace_turbo_scheduler, false, "trace generated TurboFan scheduler") |
| 336 | DEFINE_BOOL(turbo_asm, false, "enable TurboFan for asm.js code") |
| 337 | DEFINE_BOOL(turbo_verify, false, "verify TurboFan graphs at each phase") |
| 338 | DEFINE_BOOL(turbo_stats, false, "print TurboFan statistics") |
| 339 | #if V8_TURBOFAN_BACKEND |
| 340 | DEFINE_BOOL(turbo_types, true, "use typed lowering in TurboFan") |
| 341 | #else |
| 342 | DEFINE_BOOL(turbo_types, false, "use typed lowering in TurboFan") |
| 343 | #endif |
| 344 | DEFINE_BOOL(turbo_source_positions, false, |
| 345 | "track source code positions when building TurboFan IR") |
| 346 | DEFINE_BOOL(context_specialization, false, |
| 347 | "enable context specialization in TurboFan") |
| 348 | DEFINE_BOOL(turbo_deoptimization, false, "enable deoptimization in TurboFan") |
| 349 | DEFINE_BOOL(turbo_inlining, false, "enable inlining in TurboFan") |
| 350 | DEFINE_BOOL(trace_turbo_inlining, false, "trace TurboFan inlining") |
| 351 | DEFINE_IMPLICATION(turbo_inlining, turbo_types) |
| 352 | |
| 353 | DEFINE_INT(typed_array_max_size_in_heap, 64, |
| 354 | "threshold for in-heap typed array") |
| 355 | |
| 356 | // Profiler flags. |
| 357 | DEFINE_INT(frame_count, 1, "number of stack frames inspected by the profiler") |
| 358 | // 0x1800 fits in the immediate field of an ARM instruction. |
| 359 | DEFINE_INT(interrupt_budget, 0x1800, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 360 | "execution budget before interrupt is triggered") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 361 | DEFINE_INT(type_info_threshold, 25, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 362 | "percentage of ICs that must have type info to allow optimization") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 363 | DEFINE_INT(generic_ic_threshold, 30, |
| 364 | "max percentage of megamorphic/generic ICs to allow optimization") |
| 365 | DEFINE_INT(self_opt_count, 130, "call count before self-optimization") |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 366 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 367 | DEFINE_BOOL(trace_opt_verbose, false, "extra verbose compilation tracing") |
| 368 | DEFINE_IMPLICATION(trace_opt_verbose, trace_opt) |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 369 | |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 370 | // assembler-ia32.cc / assembler-arm.cc / assembler-x64.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 371 | DEFINE_BOOL(debug_code, false, "generate extra code (assertions) for debugging") |
| 372 | DEFINE_BOOL(code_comments, false, "emit comments in code disassembly") |
| 373 | DEFINE_BOOL(enable_sse3, true, "enable use of SSE3 instructions if available") |
| 374 | DEFINE_BOOL(enable_sse4_1, true, |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 375 | "enable use of SSE4.1 instructions if available") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 376 | DEFINE_BOOL(enable_sahf, true, |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 377 | "enable use of SAHF instruction if available (X64 only)") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 378 | DEFINE_BOOL(enable_vfp3, ENABLE_VFP3_DEFAULT, |
| 379 | "enable use of VFP3 instructions if available") |
| 380 | DEFINE_BOOL(enable_armv7, ENABLE_ARMV7_DEFAULT, |
Andrei Popescu | 3100271 | 2010-02-23 13:46:05 +0000 | [diff] [blame] | 381 | "enable use of ARMv7 instructions if available (ARM only)") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 382 | DEFINE_BOOL(enable_neon, ENABLE_NEON_DEFAULT, |
| 383 | "enable use of NEON instructions if available (ARM only)") |
| 384 | DEFINE_BOOL(enable_sudiv, true, |
| 385 | "enable use of SDIV and UDIV instructions if available (ARM only)") |
| 386 | DEFINE_BOOL(enable_mls, true, |
| 387 | "enable use of MLS instructions if available (ARM only)") |
| 388 | DEFINE_BOOL(enable_movw_movt, false, |
| 389 | "enable loading 32-bit constant by means of movw/movt " |
| 390 | "instruction pairs (ARM only)") |
| 391 | DEFINE_BOOL(enable_unaligned_accesses, true, |
| 392 | "enable unaligned accesses for ARMv7 (ARM only)") |
| 393 | DEFINE_BOOL(enable_32dregs, ENABLE_32DREGS_DEFAULT, |
| 394 | "enable use of d16-d31 registers on ARM - this requires VFP3") |
| 395 | DEFINE_BOOL(enable_vldr_imm, false, |
| 396 | "enable use of constant pools for double immediate (ARM only)") |
| 397 | DEFINE_BOOL(force_long_branches, false, |
| 398 | "force all emitted branches to be in long mode (MIPS only)") |
| 399 | |
| 400 | // cpu-arm64.cc |
| 401 | DEFINE_BOOL(enable_always_align_csp, true, |
| 402 | "enable alignment of csp to 16 bytes on platforms which prefer " |
| 403 | "the register to always be aligned (ARM64 only)") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 404 | |
| 405 | // bootstrapper.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 406 | DEFINE_STRING(expose_natives_as, NULL, "expose natives in global object") |
| 407 | DEFINE_STRING(expose_debug_as, NULL, "expose debug in global object") |
| 408 | DEFINE_BOOL(expose_free_buffer, false, "expose freeBuffer extension") |
| 409 | DEFINE_BOOL(expose_gc, false, "expose gc extension") |
| 410 | DEFINE_STRING(expose_gc_as, NULL, |
| 411 | "expose gc extension under the specified name") |
| 412 | DEFINE_IMPLICATION(expose_gc_as, expose_gc) |
| 413 | DEFINE_BOOL(expose_externalize_string, false, |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 414 | "expose externalize string extension") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 415 | DEFINE_BOOL(expose_trigger_failure, false, "expose trigger-failure extension") |
| 416 | DEFINE_INT(stack_trace_limit, 10, "number of stack frames to capture") |
| 417 | DEFINE_BOOL(builtins_in_stack_traces, false, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 418 | "show built-in functions in stack traces") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 419 | DEFINE_BOOL(disable_native_files, false, "disable builtin natives files") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 420 | |
| 421 | // builtins-ia32.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 422 | DEFINE_BOOL(inline_new, true, "use fast inline allocation") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 423 | |
| 424 | // codegen-ia32.cc / codegen-arm.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 425 | DEFINE_BOOL(trace_codegen, false, |
| 426 | "print name of functions for which code is generated") |
| 427 | DEFINE_BOOL(trace, false, "trace function calls") |
| 428 | DEFINE_BOOL(mask_constants_with_cookie, true, |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 429 | "use random jit cookie to mask large constants") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 430 | |
| 431 | // codegen.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 432 | DEFINE_BOOL(lazy, true, "use lazy compilation") |
| 433 | DEFINE_BOOL(trace_opt, false, "trace lazy optimization") |
| 434 | DEFINE_BOOL(trace_opt_stats, false, "trace lazy optimization statistics") |
| 435 | DEFINE_BOOL(opt, true, "use adaptive optimizations") |
| 436 | DEFINE_BOOL(always_opt, false, "always try to optimize functions") |
| 437 | DEFINE_BOOL(always_osr, false, "always try to OSR functions") |
| 438 | DEFINE_BOOL(prepare_always_opt, false, "prepare for turning on always opt") |
| 439 | DEFINE_BOOL(trace_deopt, false, "trace optimize function deoptimization") |
| 440 | DEFINE_BOOL(trace_stub_failures, false, |
| 441 | "trace deoptimization of generated code stubs") |
| 442 | |
| 443 | DEFINE_BOOL(serialize_toplevel, false, "enable caching of toplevel scripts") |
| 444 | DEFINE_BOOL(trace_code_serializer, false, "trace code serializer") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 445 | |
| 446 | // compiler.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 447 | DEFINE_INT(min_preparse_length, 1024, |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 448 | "minimum length for automatic enable preparsing") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 449 | DEFINE_INT(max_opt_count, 10, |
| 450 | "maximum number of optimization attempts before giving up.") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 451 | |
| 452 | // compilation-cache.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 453 | DEFINE_BOOL(compilation_cache, true, "enable compilation cache") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 454 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 455 | DEFINE_BOOL(cache_prototype_transitions, true, "cache prototype transitions") |
| 456 | |
| 457 | // cpu-profiler.cc |
| 458 | DEFINE_INT(cpu_profiler_sampling_interval, 1000, |
| 459 | "CPU profiler sampling interval in microseconds") |
Steve Block | 053d10c | 2011-06-13 19:13:29 +0100 | [diff] [blame] | 460 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 461 | // debug.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 462 | DEFINE_BOOL(trace_debug_json, false, "trace debugging JSON request/response") |
| 463 | DEFINE_BOOL(trace_js_array_abuse, false, |
| 464 | "trace out-of-bounds accesses to JS arrays") |
| 465 | DEFINE_BOOL(trace_external_array_abuse, false, |
| 466 | "trace out-of-bounds-accesses to external arrays") |
| 467 | DEFINE_BOOL(trace_array_abuse, false, |
| 468 | "trace out-of-bounds accesses to all arrays") |
| 469 | DEFINE_IMPLICATION(trace_array_abuse, trace_js_array_abuse) |
| 470 | DEFINE_IMPLICATION(trace_array_abuse, trace_external_array_abuse) |
| 471 | DEFINE_BOOL(enable_liveedit, true, "enable liveedit experimental feature") |
| 472 | DEFINE_BOOL(hard_abort, true, "abort by crashing") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 473 | |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 474 | // execution.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 475 | DEFINE_INT(stack_size, V8_DEFAULT_STACK_SIZE_KB, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 476 | "default size of stack region v8 is allowed to use (in kBytes)") |
Steve Block | 1e0659c | 2011-05-24 12:43:12 +0100 | [diff] [blame] | 477 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 478 | // frames.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 479 | DEFINE_INT(max_stack_trace_source_length, 300, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 480 | "maximum length of function source code printed in a stack trace.") |
| 481 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 482 | // full-codegen.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 483 | DEFINE_BOOL(always_inline_smi_code, false, |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 484 | "always inline smi code in non-opt code") |
| 485 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 486 | // heap.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 487 | DEFINE_INT(min_semi_space_size, 0, |
| 488 | "min size of a semi-space (in MBytes), the new space consists of two" |
| 489 | "semi-spaces") |
| 490 | DEFINE_INT(max_semi_space_size, 0, |
| 491 | "max size of a semi-space (in MBytes), the new space consists of two" |
| 492 | "semi-spaces") |
| 493 | DEFINE_INT(max_old_space_size, 0, "max size of the old space (in Mbytes)") |
| 494 | DEFINE_INT(max_executable_size, 0, "max size of executable memory (in Mbytes)") |
| 495 | DEFINE_BOOL(gc_global, false, "always perform global GCs") |
| 496 | DEFINE_INT(gc_interval, -1, "garbage collect after <n> allocations") |
| 497 | DEFINE_BOOL(trace_gc, false, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 498 | "print one trace line following each garbage collection") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 499 | DEFINE_BOOL(trace_gc_nvp, false, |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 500 | "print one detailed trace line in name=value format " |
| 501 | "after each garbage collection") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 502 | DEFINE_BOOL(trace_gc_ignore_scavenger, false, |
| 503 | "do not print trace line after scavenger collection") |
| 504 | DEFINE_BOOL(trace_idle_notification, false, |
| 505 | "print one trace line following each idle notification") |
| 506 | DEFINE_BOOL(print_cumulative_gc_stat, false, |
Leon Clarke | f7060e2 | 2010-06-03 12:02:55 +0100 | [diff] [blame] | 507 | "print cumulative GC statistics in name=value format on exit") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 508 | DEFINE_BOOL(print_max_heap_committed, false, |
| 509 | "print statistics of the maximum memory committed for the heap " |
| 510 | "in name=value format on exit") |
| 511 | DEFINE_BOOL(trace_gc_verbose, false, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 512 | "print more details following each garbage collection") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 513 | DEFINE_BOOL(trace_fragmentation, false, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 514 | "report fragmentation for old pointer and data pages") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 515 | DEFINE_BOOL(collect_maps, true, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 516 | "garbage collect maps from which no objects can be reached") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 517 | DEFINE_BOOL(weak_embedded_maps_in_ic, true, |
| 518 | "make maps embedded in inline cache stubs") |
| 519 | DEFINE_BOOL(weak_embedded_maps_in_optimized_code, true, |
| 520 | "make maps embedded in optimized code weak") |
| 521 | DEFINE_BOOL(weak_embedded_objects_in_optimized_code, true, |
| 522 | "make objects embedded in optimized code weak") |
| 523 | DEFINE_BOOL(flush_code, true, |
| 524 | "flush code that we expect not to use again (during full gc)") |
| 525 | DEFINE_BOOL(flush_code_incrementally, true, |
| 526 | "flush code that we expect not to use again (incrementally)") |
| 527 | DEFINE_BOOL(trace_code_flushing, false, "trace code flushing progress") |
| 528 | DEFINE_BOOL(age_code, true, |
| 529 | "track un-executed functions to age code and flush only " |
| 530 | "old code (required for code flushing)") |
| 531 | DEFINE_BOOL(incremental_marking, true, "use incremental marking") |
| 532 | DEFINE_BOOL(incremental_marking_steps, true, "do incremental marking steps") |
| 533 | DEFINE_BOOL(trace_incremental_marking, false, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 534 | "trace progress of the incremental marking") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 535 | DEFINE_BOOL(track_gc_object_stats, false, |
| 536 | "track object counts and memory usage") |
| 537 | DEFINE_BOOL(parallel_sweeping, false, "enable parallel sweeping") |
| 538 | DEFINE_BOOL(concurrent_sweeping, true, "enable concurrent sweeping") |
| 539 | DEFINE_INT(sweeper_threads, 0, |
| 540 | "number of parallel and concurrent sweeping threads") |
| 541 | DEFINE_BOOL(job_based_sweeping, true, "enable job based sweeping") |
| 542 | #ifdef VERIFY_HEAP |
| 543 | DEFINE_BOOL(verify_heap, false, "verify heap pointers before and after GC") |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame] | 544 | #endif |
| 545 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 546 | |
| 547 | // heap-snapshot-generator.cc |
| 548 | DEFINE_BOOL(heap_profiler_trace_objects, false, |
| 549 | "Dump heap object allocations/movements/size_updates") |
| 550 | |
| 551 | |
| 552 | // v8.cc |
| 553 | DEFINE_BOOL(use_idle_notification, true, |
| 554 | "Use idle notification to reduce memory footprint.") |
| 555 | // ic.cc |
| 556 | DEFINE_BOOL(use_ic, true, "use inline caching") |
| 557 | DEFINE_BOOL(trace_ic, false, "trace inline cache state transitions") |
| 558 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 559 | // macro-assembler-ia32.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 560 | DEFINE_BOOL(native_code_counters, false, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 561 | "generate extra code for manipulating stats counters") |
| 562 | |
| 563 | // mark-compact.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 564 | DEFINE_BOOL(always_compact, false, "Perform compaction on every full GC") |
| 565 | DEFINE_BOOL(never_compact, false, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 566 | "Never perform compaction on full GC - testing only") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 567 | DEFINE_BOOL(compact_code_space, true, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 568 | "Compact code space on full non-incremental collections") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 569 | DEFINE_BOOL(incremental_code_compaction, true, |
| 570 | "Compact code space on full incremental collections") |
| 571 | DEFINE_BOOL(cleanup_code_caches_at_gc, true, |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 572 | "Flush inline caches prior to mark compact collection and " |
| 573 | "flush code caches in maps during mark compact cycle.") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 574 | DEFINE_BOOL(use_marking_progress_bar, true, |
| 575 | "Use a progress bar to scan large objects in increments when " |
| 576 | "incremental marking is active.") |
| 577 | DEFINE_BOOL(zap_code_space, true, |
| 578 | "Zap free memory in code space with 0xCC while sweeping.") |
| 579 | DEFINE_INT(random_seed, 0, |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 580 | "Default seed for initializing random generator " |
| 581 | "(0, the default, means to use system random).") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 582 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 583 | // objects.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 584 | DEFINE_BOOL(use_verbose_printer, true, "allows verbose printing") |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 585 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 586 | // parser.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 587 | DEFINE_BOOL(allow_natives_syntax, false, "allow natives syntax") |
| 588 | DEFINE_BOOL(trace_parse, false, "trace parsing and preparsing") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 589 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 590 | // simulator-arm.cc, simulator-arm64.cc and simulator-mips.cc |
| 591 | DEFINE_BOOL(trace_sim, false, "Trace simulator execution") |
| 592 | DEFINE_BOOL(debug_sim, false, "Enable debugging the simulator") |
| 593 | DEFINE_BOOL(check_icache, false, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 594 | "Check icache flushes in ARM and MIPS simulator") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 595 | DEFINE_INT(stop_sim_at, 0, "Simulator stop after x number of instructions") |
| 596 | #if defined(V8_TARGET_ARCH_ARM64) || defined(V8_TARGET_ARCH_MIPS64) |
| 597 | DEFINE_INT(sim_stack_alignment, 16, |
| 598 | "Stack alignment in bytes in simulator. This must be a power of two " |
| 599 | "and it must be at least 16. 16 is default.") |
| 600 | #else |
| 601 | DEFINE_INT(sim_stack_alignment, 8, |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 602 | "Stack alingment in bytes in simulator (4 or 8, 8 is default)") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 603 | #endif |
| 604 | DEFINE_INT(sim_stack_size, 2 * MB / KB, |
| 605 | "Stack size of the ARM64 and MIPS64 simulator " |
| 606 | "in kBytes (default is 2 MB)") |
| 607 | DEFINE_BOOL(log_regs_modified, true, |
| 608 | "When logging register values, only print modified registers.") |
| 609 | DEFINE_BOOL(log_colour, true, "When logging, try to use coloured output.") |
| 610 | DEFINE_BOOL(ignore_asm_unimplemented_break, false, |
| 611 | "Don't break for ASM_UNIMPLEMENTED_BREAK macros.") |
| 612 | DEFINE_BOOL(trace_sim_messages, false, |
| 613 | "Trace simulator debug messages. Implied by --trace-sim.") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 614 | |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 615 | // isolate.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 616 | DEFINE_BOOL(stack_trace_on_illegal, false, |
| 617 | "print stack trace when an illegal exception is thrown") |
| 618 | DEFINE_BOOL(abort_on_uncaught_exception, false, |
| 619 | "abort program (dump core) when an uncaught exception is thrown") |
| 620 | DEFINE_BOOL(randomize_hashes, true, |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 621 | "randomize hashes to avoid predictable hash collisions " |
| 622 | "(with snapshots this option cannot override the baked-in seed)") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 623 | DEFINE_INT(hash_seed, 0, |
Ben Murdoch | c7cc028 | 2012-03-05 14:35:55 +0000 | [diff] [blame] | 624 | "Fixed seed to use to hash property keys (0 means random)" |
| 625 | "(with snapshots this option cannot override the baked-in seed)") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 626 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 627 | // snapshot-common.cc |
| 628 | DEFINE_BOOL(profile_deserialization, false, |
| 629 | "Print the time it takes to deserialize the snapshot.") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 630 | |
| 631 | // Regexp |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 632 | DEFINE_BOOL(regexp_optimization, true, "generate optimized regexp code") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 633 | |
| 634 | // Testing flags test/cctest/test-{flags,api,serialization}.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 635 | DEFINE_BOOL(testing_bool_flag, true, "testing_bool_flag") |
| 636 | DEFINE_MAYBE_BOOL(testing_maybe_bool_flag, "testing_maybe_bool_flag") |
| 637 | DEFINE_INT(testing_int_flag, 13, "testing_int_flag") |
| 638 | DEFINE_FLOAT(testing_float_flag, 2.5, "float-flag") |
| 639 | DEFINE_STRING(testing_string_flag, "Hello, world!", "string-flag") |
| 640 | DEFINE_INT(testing_prng_seed, 42, "Seed used for threading test randomness") |
| 641 | #ifdef _WIN32 |
| 642 | DEFINE_STRING(testing_serialization_file, "C:\\Windows\\Temp\\serdes", |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 643 | "file in which to testing_serialize heap") |
| 644 | #else |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 645 | DEFINE_STRING(testing_serialization_file, "/tmp/serdes", |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 646 | "file in which to serialize heap") |
| 647 | #endif |
| 648 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 649 | // mksnapshot.cc |
| 650 | DEFINE_STRING(extra_code, NULL, |
| 651 | "A filename with extra code to be included in" |
| 652 | " the snapshot (mksnapshot only)") |
| 653 | DEFINE_STRING(raw_file, NULL, |
| 654 | "A file to write the raw snapshot bytes to. " |
| 655 | "(mksnapshot only)") |
| 656 | DEFINE_STRING(raw_context_file, NULL, |
| 657 | "A file to write the raw context " |
| 658 | "snapshot bytes to. (mksnapshot only)") |
| 659 | DEFINE_STRING(startup_blob, NULL, |
| 660 | "Write V8 startup blob file. " |
| 661 | "(mksnapshot only)") |
| 662 | |
| 663 | // code-stubs-hydrogen.cc |
| 664 | DEFINE_BOOL(profile_hydrogen_code_stub_compilation, false, |
| 665 | "Print the time it takes to lazily compile hydrogen code stubs.") |
| 666 | |
| 667 | DEFINE_BOOL(predictable, false, "enable predictable mode") |
| 668 | DEFINE_NEG_IMPLICATION(predictable, concurrent_recompilation) |
| 669 | DEFINE_NEG_IMPLICATION(predictable, concurrent_osr) |
| 670 | DEFINE_NEG_IMPLICATION(predictable, concurrent_sweeping) |
| 671 | DEFINE_NEG_IMPLICATION(predictable, parallel_sweeping) |
| 672 | |
| 673 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 674 | // |
| 675 | // Dev shell flags |
| 676 | // |
| 677 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 678 | DEFINE_BOOL(help, false, "Print usage message, including flags, on console") |
| 679 | DEFINE_BOOL(dump_counters, false, "Dump counters on exit") |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 680 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 681 | DEFINE_BOOL(debugger, false, "Enable JavaScript debugger") |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 682 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 683 | DEFINE_STRING(map_counters, "", "Map counters to a file") |
| 684 | DEFINE_ARGS(js_arguments, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 685 | "Pass all remaining arguments to the script. Alias for \"--\".") |
| 686 | |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 687 | // |
| 688 | // GDB JIT integration flags. |
| 689 | // |
| 690 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 691 | DEFINE_BOOL(gdbjit, false, "enable GDBJIT interface (disables compacting GC)") |
| 692 | DEFINE_BOOL(gdbjit_full, false, "enable GDBJIT interface for all code objects") |
| 693 | DEFINE_BOOL(gdbjit_dump, false, "dump elf objects with debug info to disk") |
| 694 | DEFINE_STRING(gdbjit_dump_filter, "", |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 695 | "dump only objects containing this substring") |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame] | 696 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 697 | // mark-compact.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 698 | DEFINE_BOOL(force_marking_deque_overflows, false, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 699 | "force overflows of marking deque by reducing it's size " |
| 700 | "to 64 words") |
| 701 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 702 | DEFINE_BOOL(stress_compaction, false, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 703 | "stress the GC compactor to flush out bugs (implies " |
| 704 | "--force_marking_deque_overflows)") |
| 705 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 706 | // |
| 707 | // Debug only flags |
| 708 | // |
| 709 | #undef FLAG |
| 710 | #ifdef DEBUG |
| 711 | #define FLAG FLAG_FULL |
| 712 | #else |
| 713 | #define FLAG FLAG_READONLY |
| 714 | #endif |
| 715 | |
| 716 | // checks.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 717 | #ifdef ENABLE_SLOW_DCHECKS |
| 718 | DEFINE_BOOL(enable_slow_asserts, false, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 719 | "enable asserts that are slow to execute") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 720 | #endif |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 721 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 722 | // codegen-ia32.cc / codegen-arm.cc / macro-assembler-*.cc |
| 723 | DEFINE_BOOL(print_source, false, "pretty print source code") |
| 724 | DEFINE_BOOL(print_builtin_source, false, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 725 | "pretty print source code for builtins") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 726 | DEFINE_BOOL(print_ast, false, "print source AST") |
| 727 | DEFINE_BOOL(print_builtin_ast, false, "print source AST for builtins") |
| 728 | DEFINE_STRING(stop_at, "", "function name where to insert a breakpoint") |
| 729 | DEFINE_BOOL(trap_on_abort, false, "replace aborts by breakpoints") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 730 | |
| 731 | // compiler.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 732 | DEFINE_BOOL(print_builtin_scopes, false, "print scopes for builtins") |
| 733 | DEFINE_BOOL(print_scopes, false, "print scopes") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 734 | |
| 735 | // contexts.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 736 | DEFINE_BOOL(trace_contexts, false, "trace contexts operations") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 737 | |
| 738 | // heap.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 739 | DEFINE_BOOL(gc_verbose, false, "print stuff during garbage collection") |
| 740 | DEFINE_BOOL(heap_stats, false, "report heap statistics before and after GC") |
| 741 | DEFINE_BOOL(code_stats, false, "report code statistics after GC") |
| 742 | DEFINE_BOOL(verify_native_context_separation, false, |
| 743 | "verify that code holds on to at most one native context after GC") |
| 744 | DEFINE_BOOL(print_handles, false, "report handles after GC") |
| 745 | DEFINE_BOOL(print_global_handles, false, "report global handles after GC") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 746 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 747 | // TurboFan debug-only flags. |
| 748 | DEFINE_BOOL(print_turbo_replay, false, |
| 749 | "print C++ code to recreate TurboFan graphs") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 750 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 751 | // interface.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 752 | DEFINE_BOOL(print_interfaces, false, "print interfaces") |
| 753 | DEFINE_BOOL(print_interface_details, false, "print interface inference details") |
| 754 | DEFINE_INT(print_interface_depth, 5, "depth for printing interfaces") |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 755 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 756 | // objects.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 757 | DEFINE_BOOL(trace_normalization, false, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 758 | "prints when objects are turned into dictionaries.") |
| 759 | |
| 760 | // runtime.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 761 | DEFINE_BOOL(trace_lazy, false, "trace lazy compilation") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 762 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 763 | // spaces.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 764 | DEFINE_BOOL(collect_heap_spill_statistics, false, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 765 | "report heap spill statistics along with heap_stats " |
| 766 | "(requires heap_stats)") |
| 767 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 768 | DEFINE_BOOL(trace_isolates, false, "trace isolate state changes") |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 769 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 770 | // Regexp |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 771 | DEFINE_BOOL(regexp_possessive_quantifier, false, |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 772 | "enable possessive quantifier syntax for testing") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 773 | DEFINE_BOOL(trace_regexp_bytecodes, false, "trace regexp bytecode execution") |
| 774 | DEFINE_BOOL(trace_regexp_assembler, false, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 775 | "trace regexp macro assembler calls.") |
| 776 | |
| 777 | // |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 778 | // Logging and profiling flags |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 779 | // |
| 780 | #undef FLAG |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 781 | #define FLAG FLAG_FULL |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 782 | |
| 783 | // log.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 784 | DEFINE_BOOL(log, false, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 785 | "Minimal logging (no API, code, GC, suspect, or handles samples).") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 786 | DEFINE_BOOL(log_all, false, "Log all events to the log file.") |
| 787 | DEFINE_BOOL(log_api, false, "Log API events to the log file.") |
| 788 | DEFINE_BOOL(log_code, false, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 789 | "Log code events to the log file without profiling.") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 790 | DEFINE_BOOL(log_gc, false, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 791 | "Log heap samples on garbage collection for the hp2ps tool.") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 792 | DEFINE_BOOL(log_handles, false, "Log global handle events.") |
| 793 | DEFINE_BOOL(log_snapshot_positions, false, |
Leon Clarke | e46be81 | 2010-01-19 14:06:41 +0000 | [diff] [blame] | 794 | "log positions of (de)serialized objects in the snapshot.") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 795 | DEFINE_BOOL(log_suspect, false, "Log suspect operations.") |
| 796 | DEFINE_BOOL(prof, false, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 797 | "Log statistical profiling information (implies --log-code).") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 798 | DEFINE_BOOL(prof_browser_mode, true, |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 799 | "Used with --prof, turns on browser-compatible mode for profiling.") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 800 | DEFINE_BOOL(log_regexp, false, "Log regular expression execution.") |
| 801 | DEFINE_STRING(logfile, "v8.log", "Specify the name of the log file.") |
| 802 | DEFINE_BOOL(logfile_per_isolate, true, "Separate log files for each isolate.") |
| 803 | DEFINE_BOOL(ll_prof, false, "Enable low-level linux profiler.") |
| 804 | DEFINE_BOOL(perf_basic_prof, false, |
| 805 | "Enable perf linux profiler (basic support).") |
| 806 | DEFINE_NEG_IMPLICATION(perf_basic_prof, compact_code_space) |
| 807 | DEFINE_BOOL(perf_jit_prof, false, |
| 808 | "Enable perf linux profiler (experimental annotate support).") |
| 809 | DEFINE_NEG_IMPLICATION(perf_jit_prof, compact_code_space) |
| 810 | DEFINE_STRING(gc_fake_mmap, "/tmp/__v8_gc__", |
| 811 | "Specify the name of the file for fake gc mmap used in ll_prof") |
| 812 | DEFINE_BOOL(log_internal_timer_events, false, "Time internal events.") |
| 813 | DEFINE_BOOL(log_timer_events, false, |
| 814 | "Time events including external callbacks.") |
| 815 | DEFINE_IMPLICATION(log_timer_events, log_internal_timer_events) |
| 816 | DEFINE_IMPLICATION(log_internal_timer_events, prof) |
| 817 | DEFINE_BOOL(log_instruction_stats, false, "Log AArch64 instruction statistics.") |
| 818 | DEFINE_STRING(log_instruction_file, "arm64_inst.csv", |
| 819 | "AArch64 instruction statistics log file.") |
| 820 | DEFINE_INT(log_instruction_period, 1 << 22, |
| 821 | "AArch64 instruction statistics logging period.") |
| 822 | |
| 823 | DEFINE_BOOL(redirect_code_traces, false, |
| 824 | "output deopt information and disassembly into file " |
| 825 | "code-<pid>-<isolate id>.asm") |
| 826 | DEFINE_STRING(redirect_code_traces_to, NULL, |
| 827 | "output deopt information and disassembly into the given file") |
| 828 | |
| 829 | DEFINE_BOOL(hydrogen_track_positions, false, |
| 830 | "track source code positions when building IR") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 831 | |
| 832 | // |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 833 | // Disassembler only flags |
| 834 | // |
| 835 | #undef FLAG |
| 836 | #ifdef ENABLE_DISASSEMBLER |
| 837 | #define FLAG FLAG_FULL |
| 838 | #else |
| 839 | #define FLAG FLAG_READONLY |
| 840 | #endif |
| 841 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 842 | // elements.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 843 | DEFINE_BOOL(trace_elements_transitions, false, "trace elements transitions") |
| 844 | |
| 845 | DEFINE_BOOL(trace_creation_allocation_sites, false, |
| 846 | "trace the creation of allocation sites") |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 847 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 848 | // code-stubs.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 849 | DEFINE_BOOL(print_code_stubs, false, "print code stubs") |
| 850 | DEFINE_BOOL(test_secondary_stub_cache, false, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 851 | "test secondary stub cache by disabling the primary one") |
| 852 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 853 | DEFINE_BOOL(test_primary_stub_cache, false, |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 854 | "test primary stub cache by disabling the secondary one") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 855 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 856 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 857 | // codegen-ia32.cc / codegen-arm.cc |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 858 | DEFINE_BOOL(print_code, false, "print generated code") |
| 859 | DEFINE_BOOL(print_opt_code, false, "print optimized code") |
| 860 | DEFINE_BOOL(print_unopt_code, false, |
| 861 | "print unoptimized code before " |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 862 | "printing optimized code based on it") |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 863 | DEFINE_BOOL(print_code_verbose, false, "print more information for code") |
| 864 | DEFINE_BOOL(print_builtin_code, false, "print generated code for builtins") |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 865 | |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 866 | #ifdef ENABLE_DISASSEMBLER |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 867 | DEFINE_BOOL(sodium, false, |
| 868 | "print generated code output suitable for use with " |
| 869 | "the Sodium code viewer") |
| 870 | |
| 871 | DEFINE_IMPLICATION(sodium, print_code_stubs) |
| 872 | DEFINE_IMPLICATION(sodium, print_code) |
| 873 | DEFINE_IMPLICATION(sodium, print_opt_code) |
| 874 | DEFINE_IMPLICATION(sodium, hydrogen_track_positions) |
| 875 | DEFINE_IMPLICATION(sodium, code_comments) |
| 876 | |
| 877 | DEFINE_BOOL(print_all_code, false, "enable all flags related to printing code") |
| 878 | DEFINE_IMPLICATION(print_all_code, print_code) |
| 879 | DEFINE_IMPLICATION(print_all_code, print_opt_code) |
| 880 | DEFINE_IMPLICATION(print_all_code, print_unopt_code) |
| 881 | DEFINE_IMPLICATION(print_all_code, print_code_verbose) |
| 882 | DEFINE_IMPLICATION(print_all_code, print_builtin_code) |
| 883 | DEFINE_IMPLICATION(print_all_code, print_code_stubs) |
| 884 | DEFINE_IMPLICATION(print_all_code, code_comments) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 885 | #ifdef DEBUG |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 886 | DEFINE_IMPLICATION(print_all_code, trace_codegen) |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 887 | #endif |
| 888 | #endif |
| 889 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 890 | |
| 891 | // |
| 892 | // VERIFY_PREDICTABLE related flags |
| 893 | // |
| 894 | #undef FLAG |
| 895 | |
| 896 | #ifdef VERIFY_PREDICTABLE |
| 897 | #define FLAG FLAG_FULL |
| 898 | #else |
| 899 | #define FLAG FLAG_READONLY |
| 900 | #endif |
| 901 | |
| 902 | DEFINE_BOOL(verify_predictable, false, |
| 903 | "this mode is used for checking that V8 behaves predictably") |
| 904 | DEFINE_INT(dump_allocations_digest_at_alloc, 0, |
| 905 | "dump allocations digest each n-th allocation") |
| 906 | |
| 907 | |
| 908 | // |
| 909 | // Read-only flags |
| 910 | // |
| 911 | #undef FLAG |
| 912 | #define FLAG FLAG_READONLY |
| 913 | |
| 914 | // assembler-arm.h |
| 915 | DEFINE_BOOL(enable_ool_constant_pool, V8_OOL_CONSTANT_POOL, |
| 916 | "enable use of out-of-line constant pools (ARM only)") |
| 917 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 918 | // Cleanup... |
| 919 | #undef FLAG_FULL |
| 920 | #undef FLAG_READONLY |
| 921 | #undef FLAG |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 922 | #undef FLAG_ALIAS |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 923 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 924 | #undef DEFINE_BOOL |
| 925 | #undef DEFINE_MAYBE_BOOL |
| 926 | #undef DEFINE_INT |
| 927 | #undef DEFINE_STRING |
| 928 | #undef DEFINE_FLOAT |
| 929 | #undef DEFINE_ARGS |
| 930 | #undef DEFINE_IMPLICATION |
| 931 | #undef DEFINE_NEG_IMPLICATION |
| 932 | #undef DEFINE_VALUE_IMPLICATION |
| 933 | #undef DEFINE_ALIAS_BOOL |
| 934 | #undef DEFINE_ALIAS_INT |
| 935 | #undef DEFINE_ALIAS_STRING |
| 936 | #undef DEFINE_ALIAS_FLOAT |
| 937 | #undef DEFINE_ALIAS_ARGS |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 938 | |
| 939 | #undef FLAG_MODE_DECLARE |
| 940 | #undef FLAG_MODE_DEFINE |
| 941 | #undef FLAG_MODE_DEFINE_DEFAULTS |
| 942 | #undef FLAG_MODE_META |
Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [diff] [blame] | 943 | #undef FLAG_MODE_DEFINE_IMPLICATIONS |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 944 | |
| 945 | #undef COMMA |