1 2013-12-04: Version 3.23.18 2 3 Performance and stability improvements on all platforms. 4 5 6 2013-12-03: Version 3.23.17 7 8 Performance and stability improvements on all platforms. 9 10 11 2013-12-02: Version 3.23.16 12 13 Array builtins need to be prevented from changing frozen objects, and 14 changing structure on sealed objects (Chromium issue 299979). 15 16 Performance and stability improvements on all platforms. 17 18 19 2013-11-29: Version 3.23.15 20 21 Fix context register allocation in LTransitionElementsKind 22 (Chromium issue 324306). 23 24 Fix bug in inlining Function.apply (Chromium issue 323942). 25 26 Ensure that length is Smi in TypedArrayFromArrayLike constructor 27 (Chromium issue 324028). 28 29 Performance and stability improvements on all platforms. 30 31 32 2013-11-28: Version 3.23.14 33 34 Shorten autogenerated error message (issue 3019). 35 36 Performance and stability improvements on all platforms. 37 38 39 2013-11-27: Version 3.23.13 40 41 Increase precision for base conversion for large integers (issue 3025). 42 43 Flatten cons string for single character substrings (Chromium issue 44 323041). 45 46 Performance and stability improvements on all platforms. 47 48 49 2013-11-26: Version 3.23.12 50 51 Performance and stability improvements on all platforms. 52 53 54 2013-11-25: Version 3.23.11 55 56 Deprecate old versions of Isolate::SetData and GetData. 57 58 Performance and stability improvements on all platforms. 59 60 61 2013-11-22: Version 3.23.10 62 63 Remove preemption thread and API. 64 (issue 3004) 65 66 Performance and stability improvements on all platforms. 67 68 69 2013-11-21: Version 3.23.9 70 71 API: Change AdjustAmountOfExternalAllocatedMemory calls to use int64_t 72 instead of intptr_t. 73 74 Remove deprecated v8::SetResourceConstraints without Isolate parameter. 75 76 Remove deprecated v8-defaults.h and defaults.cc. 77 (Chromium issue 312241) 78 79 Make it possible to add more than one piece of embedder data to 80 isolates. 81 (Chromium issue 317398) 82 83 Performance and stability improvements on all platforms. 84 85 86 2013-11-20: Version 3.23.8 87 88 Fixed crashes exposed though fuzzing. 89 (Chromium issue 320948) 90 91 Deprecated v8::External::New without Isolate parameter. 92 93 Made number of available threads isolate-dependent and exposed it to 94 ResourceConstraints. 95 (issue 2991) 96 97 Performance and stability improvements on all platforms. 98 99 100 2013-11-19: Version 3.23.7 101 102 Bugfix: dependent code field in AllocationSite was keeping code objects 103 alive even after context death. 104 (Chromium issue 320532) 105 106 Fixed data view accessors to throw execptions on offsets bigger than 107 size_t. 108 (issue 3013) 109 110 Performance and stability improvements on all platforms. 111 112 113 2013-11-18: Version 3.23.6 114 115 Limit size of dehoistable array indices. 116 (Chromium issues 319835, 319860) 117 118 Limit the size for typed arrays to MaxSmi. 119 (Chromium issue 319722) 120 121 Performance and stability improvements on all platforms. 122 123 124 2013-11-15: Version 3.23.5 125 126 Fixed missing type feedback check for Generic*String addition. 127 (Chromium issue 318671) 128 129 Fixed duplicate check in DependentCode::Insert. 130 (Chromium issue 318454) 131 132 Performance and stability improvements on all platforms. 133 134 135 2013-11-14: Version 3.23.4 136 137 Fixed overflow in TypedArray initialization function. 138 (Chromium issue 319120) 139 140 Performance and stability improvements on all platforms. 141 142 143 2013-11-13: Version 3.23.3 144 145 Fixed compilation with GCC 4.8. 146 (issue 2767, 2149) 147 148 Added explicit Isolate parameter to External::New. 149 (Chromium issue 266838) 150 151 Performance and stability improvements on all platforms. 152 153 154 2013-11-12: Version 3.23.2 155 156 Fixed --extra-code flag for snapshot creation. 157 (issue 2994) 158 159 Fixed error message wording when instanceof throws. 160 (Chromium issue 82797, issue 1593) 161 162 Performance and stability improvements on all platforms. 163 164 165 2013-11-08: Version 3.23.1 166 167 Made HCapturedObjects non-deletable for DCE. (issue 2987) 168 169 Use a fixed random seed per default. (issue 1880, 2885) 170 171 Fixed y-umlaut to uppercase. (issue 2984) 172 173 Performance and stability improvements on all platforms. 174 175 176 2013-11-06: Version 3.23.0 177 178 Fixed loading message from an Error object. (Chromium issue 306220) 179 180 Made Object.freeze/seal/preventExtensions observable. (issue 2975, 2941) 181 182 Made snapshots reproducible. (issue 2885) 183 184 Added missing negative dictionary lookup to NonexistentHandlerFrontend. 185 (issue 2980) 186 187 Performance and stability improvements on all platforms. 188 189 190 2013-10-31: Version 3.22.24 191 192 Fixed uint32-to-smi conversion in Lithium. 193 (Chromium issue 309623) 194 195 Performance and stability improvements on all platforms. 196 197 198 2013-10-28: Version 3.22.23 199 200 Renamed deprecated __attribute__((no_address_safety_analysis)) to 201 __attribute__((no_sanitize_address)) (Chromium issue 311283) 202 203 Defined DEBUG for v8_optimized_debug=2 204 205 Performance and stability improvements on all platforms. 206 207 208 2013-10-25: Version 3.22.22 209 210 Record allocation stack traces. (Chromium issue 277984,v8:2949) 211 212 Performance and stability improvements on all platforms. 213 214 215 2013-10-24: Version 3.22.21 216 217 Performance and stability improvements on all platforms. 218 219 220 2013-10-24: Version 3.22.20 221 222 Made Array.prototype.pop throw if the last element is not configurable. 223 224 Fixed HObjectAccess for loads from migrating prototypes. 225 (Chromium issue 305309) 226 227 Enabled preaging of code objects when --optimize-for-size. 228 (Chromium issue 280984) 229 230 Exposed v8::Function::GetDisplayName to public API. 231 (Chromium issue 17356) 232 233 Performance and stability improvements on all platforms. 234 235 236 2013-10-23: Version 3.22.19 237 238 Fix materialization of captured objects with field tracking. 239 (Chromium issue 298990) 240 241 Performance and stability improvements on all platforms. 242 243 244 2013-10-22: Version 3.22.18 245 246 Add tool to visualize machine code/lithium. 247 248 Handle misaligned loads and stores in load elimination. Do not track 249 misaligned loads and be conservative about invalidating misaligned 250 stores. (issue 2934) 251 252 Performance and stability improvements on all platforms. 253 254 255 2013-10-21: Version 3.22.17 256 257 Harmony: Implement Math.trunc and Math.sign. (issue 2938) 258 259 Performance and stability improvements on all platforms. 260 261 262 2013-10-21: Version 3.22.16 263 264 Performance and stability improvements on all platforms. 265 266 267 2013-10-18: Version 3.22.15 268 269 Enabled calling the SetReference* & SetObjectGroupId functions with a 270 Persistent<SubclassOfValue>. 271 272 Performance and stability improvements on all platforms. 273 274 275 2013-10-17: Version 3.22.14 276 277 Performance and stability improvements on all platforms. 278 279 280 2013-10-16: Version 3.22.13 281 282 Do not look up ArrayBuffer on global object in typed array constructor. 283 (issue 2931) 284 285 Performance and stability improvements on all platforms. 286 287 288 2013-10-15: Version 3.22.12 289 290 Added histograms to track fraction of heap spaces and percentage of 291 generated crankshaft code. 292 293 Moved v8_optimized_debug default value to standalone.gypi. 294 295 Track JS allocations as they arrive with no affection on performance 296 when tracking is switched off (Chromium issue 277984). 297 298 Performance and stability improvements on all platforms. 299 300 301 2013-10-14: Version 3.22.11 302 303 Performance and stability improvements on all platforms. 304 305 306 2013-10-11: Version 3.22.10 307 308 Fixed timezone issues with date-time/parse-* tests. 309 (Chromium issue 2919) 310 311 Added column getter to CpuProfileNode (Chromium issue 302537) 312 313 Performance and stability improvements on all platforms. 314 315 316 2013-10-10: Version 3.22.9 317 318 Ensure only whitelisted stubs have sse2 versions in the snapshot. 319 (fix for chromium 304565) 320 321 Implement ArrayBuffer.isView. 322 323 Performance and stability improvements on all platforms. 324 325 326 2013-10-04: Version 3.22.8 327 328 Performance and stability improvements on all platforms. 329 330 331 2013-10-03: Version 3.22.7 332 333 Debug: Allow stepping into on a given call frame 334 (Chromium issue 296963). 335 336 Always use timeGetTime() for TimeTicks::Now() on Windows 337 (Chromium issue 288924). 338 339 Performance and stability improvements on all platforms. 340 341 342 2013-10-02: Version 3.22.6 343 344 Performance and stability improvements on all platforms. 345 346 347 2013-10-01: Version 3.22.5 348 349 Disabled externalization of sliced/cons strings in old pointer space 350 (Chromium issue 276357). 351 352 Turned on handle zapping for release builds 353 354 Performance and stability improvements on all platforms. 355 356 357 2013-09-30: Version 3.22.4 358 359 Function::Call and Object::CallAsFunction APIs should allow v8::Value as 360 a receiver (issue 2915). 361 362 Removed unnecessary mutex (Chromium issue 291236). 363 364 Removed ArrayBufferView::BaseAddress method. 365 366 Performance and stability improvements on all platforms. 367 368 369 2013-09-27: Version 3.22.3 370 371 Added methods to enable configuration of ResourceConstraints based on 372 limits derived at runtime. 373 (Chromium issue 292928) 374 375 Added -optimize-for-size flag to optimize for memory size (will be used 376 by pre-aging CL), and removed the is_memory_constrained 377 ResourceConstraint. 378 (Chromium issue 292928) 379 380 Performance and stability improvements on all platforms. 381 382 383 2013-09-26: Version 3.22.2 384 385 Performance and stability improvements on all platforms. 386 387 388 2013-09-25: Version 3.22.1 389 390 Sped up creating typed arrays from array-like objects. 391 (Chromium issue 270507) 392 393 Performance and stability improvements on all platforms. 394 395 396 2013-09-23: Version 3.22.0 397 398 LiveEdit to mark more closure functions for re-instantiation when scope 399 layout changes. 400 (issue 2872) 401 402 Made bounds check elimination iterative instead of recursive. 403 (Chromium issue 289706) 404 405 Turned on i18n support by default. 406 407 Set the proper instance-type on HAllocate in BuildFastLiteral. 408 (Chromium issue 284577) 409 410 Performance and stability improvements on all platforms. 411 412 413 2013-09-18: Version 3.21.17 414 415 Implemented local load/store elimination on basic blocks. 416 417 Added mutex when accessing concurrent recompilation output queue. 418 (Chromium issue 291236) 419 420 Don't lookup the cache for the result of Function::New. 421 (Chromium issue 272579) 422 423 Tweaked HConstant::EmitAtUses() to eliminate useless constant 424 generation. 425 (Chromium issue 2881) 426 427 Performance and stability improvements on all platforms. 428 429 430 2013-09-16: Version 3.21.16 431 432 Every place where AllocationMemento is initialized with an 433 AllocationSite is now checked to be sure a valid Site goes in. This is 434 temporary code to diagnose chromium bug 284577. 435 436 Performance and stability improvements on all platforms. 437 438 439 2013-09-13: Version 3.21.15 440 441 Non-JSObject heap objects are now handled using slow-path IC stub 442 guarded by the map. 443 (Chromium issue 280632) 444 445 i18n Javascript code added to the snapshot. 446 (V8 issue 2745) 447 448 Performance and stability improvements on all platforms. 449 450 2013-09-12: Version 3.21.14 451 452 Added access check for observed objects. 453 (V8 issue 2778) 454 455 Cleaned up v8::ArrayBuffer::Allocator interface. 456 (V8 issue 2823) 457 458 Performance and stability improvements on all platforms. 459 460 2013-09-11: Version 3.21.13 461 462 Added a ResourceConstraint for the embedder to specify that V8 is 463 running on a memory constrained device. 464 (Chromium issue 280984) 465 466 Removed HandleScope default ctor. 467 (Chromium issue 236173) 468 469 Enabled escape analysis for Hydrogen. 470 471 Correctly stringified mixed encoding indirect strings. 472 (Chromium issue 287476) 473 474 Performance and stability improvements on all platforms. 475 476 477 2013-09-09: Version 3.21.12 478 479 Fixed bitwise negation on x64. 480 (Chromium issue 285355) 481 482 Dropped GetCurrentThreadId() and TerminateExecution(int) from 483 the external API. 484 485 Fixed polymorphic INTERCEPTOR StoreICs on ARM/MIPS. 486 (Chromium issue 284998) 487 488 Added check if timeout has expired after processing each sample. 489 (issue 2814,v8:2871) 490 491 Removed obsolete global V8::has_been_fooed flags. 492 (issue 2744) 493 494 Performance and stability improvements on all platforms. 495 496 497 2013-09-05: Version 3.21.11 498 499 Performance and stability improvements on all platforms. 500 501 502 2013-09-04: Version 3.21.10 503 504 Fixed Eternal::IsEmpty logic (issue 2870). 505 506 Performance and stability improvements on all platforms. 507 508 509 2013-09-03: Version 3.21.9 510 511 Deprecated Persistent functions which were marked to be deprecated. 512 513 Allowed uncacheable identifiers to go generic (issue 2867). 514 515 Performance and stability improvements on all platforms. 516 517 518 2013-09-02: Version 3.21.8 519 520 Added scriptId to StackTrace frames (issue 2865). 521 522 Performance and stability improvements on all platforms. 523 524 525 2013-08-30: Version 3.21.7 526 527 Fixed casts of eternal handles. 528 529 Turned on global handle zapping. 530 531 Always visit branches during HGraph building (Chromium issue 280333). 532 533 Profiler changes: removed deprecated API, support higher sampling 534 rate on Windows. 535 536 Performance and stability improvements on all platforms. 537 538 539 2013-08-29: Version 3.21.6 540 541 Fixed inlined 'throw' statements interfering with live range 542 computation. (issue 2843) 543 544 Performance and stability improvements on all platforms. 545 546 547 2013-08-28: Version 3.21.5 548 549 Fixed compilation with recent MinGW64 versions. (issue 2300) 550 551 Added RemovePrototype to FunctionTemplate. (Chromium issue 272440) 552 553 Performance and stability improvements on all platforms. 554 555 556 2013-08-26: Version 3.21.4 557 558 Lowered kInitialMaxFastElementArray constant to 95K (issue 2790). 559 560 Use signals for cpu profiling on Mac OS X (issue 2814). 561 562 Deprecated CpuProfileNode::GetSelfSamplesCount (Chromium issue 267595). 563 564 Added support for higher CPU profiler sampling rate on posix systems 565 (issue 2814). 566 567 Worked around 'inlining failed' build error with older GCC 4.x releases. 568 569 Added source map support to tick processor. 570 571 Stability improvements on all platforms. 572 573 574 2013-08-23: Version 3.21.3 575 576 Temporarily disabled optimization for StringWrappers to use native 577 valueOf. (issue 2855) 578 579 Fixed crash on function declarations in eval inside non-trivial local 580 scope. (issue 2594) 581 582 Rewrote SamplingCircularQueue. (issue 2814) 583 584 Fixed hidden properties on object with frozen prototype. (issue 2829) 585 586 Fix deoptimization bug. (Chromium issue 274164) 587 588 Stability improvements on all platforms. 589 590 591 2013-08-22: Version 3.21.2 592 593 Stability improvements on all platforms. 594 595 596 2013-08-21: Version 3.21.1 597 598 Promoted ArrayBuffer, DataView and typed arrays to non-experimental. 599 (Chromium issue 270527) 600 601 Replaced OS::MemCopy with memcpy in typed array initialization. 602 (Chromium issue 270642) 603 604 Moved i18n break iterator C++ code to runtime (issue 2745) 605 606 Fixed invalid out-of-bounds store in MacroAssembler::Allocate. 607 (Chromium issue 263515) 608 609 Fixed register misuse in Allocate() on ARM. (issue 2851) 610 611 Fixed empty handle dereference in Runtime_InternalNumberFormat. 612 (Chromium issue 275467) 613 614 Performance and stability improvements on all platforms. 615 616 617 2013-08-19: Version 3.21.0 618 619 Fixed GC-related crasher (Chromium issue 274438) 620 621 Reverted making Intl non-enumerable. 622 623 Performance and stability improvements on all platforms. 624 625 626 2013-08-14: Version 3.20.17 627 628 Fixed Math.round/floor that had bogus Smi representation 629 (Chromium issue 272564) 630 631 Performance and stability improvements on all platforms. 632 633 634 2013-08-13: Version 3.20.16 635 636 Fixed bug in HPhi::SimplifyConstantInput (Chromium issue 269679) 637 638 Fixed gcmole bugs in i18n code (issue 2745) 639 640 ia32: Calls to the TranscendentalCacheStub must ensure that esi is 641 set (issue 2827) 642 643 Made sure polymorphic element access creates non-replaying 644 phis. (issue 2815) 645 646 Allowed HPhis to have an invalid merge index. (issue 2815) 647 648 Fixed smi-based math floor. (Chromium issue 270268) 649 650 Deprecated self and total time getters and total sample count 651 getter on CpuProfileNode. (Chromium issue 267595) 652 653 Fixed Object.freeze, Object.observe wrt CountOperation and 654 CompoundAssignment. (issue 2774,2779) 655 656 Performance and stability improvements on all platforms. 657 658 659 2013-08-07: Version 3.20.15 660 661 Exposed eternal handle api. 662 663 Bugfix to solve issues with enabling V8 typed arrays in Blink. 664 665 Fixed Array index dehoisting. (Chromium issue 264203) 666 667 Updated Array Iterator to use numeric indexes (issue 2818) 668 669 Return start/end profiling time in microseconds instead of milliseconds 670 (issue 2824) 671 672 Performance and stability improvements on all platforms. 673 674 675 2013-08-06: Version 3.20.14 676 677 Added new Harmony methods to Array.prototype object. 678 (issue 2776,v8:2777) 679 680 Performance and stability improvements on all platforms. 681 682 683 2013-08-01: Version 3.20.12 684 685 Removed buggy ToNumber truncation (partial fix for issue 2813) 686 687 Calling Map etc without new should throw TypeError (issue 2819) 688 689 Fixed a crash for large code objects on ARM (Chromium issue 2736) 690 691 Fixed stale unhandlified value in JSObject::SetPropertyForResult. 692 (Chromium issue 265894) 693 694 Added new Harmony methods to String.prototype object. 695 (issue 2796,v8:2797,v8:2798,v8:2799) 696 697 Performance and stability improvements on all platforms. 698 699 700 2013-07-30: Version 3.20.11 701 702 Performance and stability improvements on all platforms. 703 704 705 2013-07-29: Version 3.20.10 706 707 Performance and stability improvements on all platforms. 708 709 710 2013-07-26: Version 3.20.9 711 712 Check that ExternalString objects get aligned resources. 713 714 Fixed JSArray-specific length lookup in polymorphic array handling 715 (Chromium issues 263276, 263905). 716 717 Performance and stability improvements on all platforms. 718 719 720 2013-07-24: Version 3.20.8 721 722 Deprecated v8::V8::Pause/ResumeProfiler. 723 724 Fixed Chromium issues 247688, 258519 and 260203. 725 726 Performance and stability improvements on all platforms. 727 728 729 2013-07-22: Version 3.20.7 730 731 Deprecated some debugger methods. 732 733 Fixed wrong bailout id in polymorphic stores (Chromium issue 259787). 734 735 Fixed data race in SamplingCircularQueue (Chromium issue 251218). 736 737 Fixed type feedback in presence of negative lookups 738 (Chromium issue 252797). 739 740 Do not materialize context-allocated values for debug-evaluate 741 (Chromium issue 259300). 742 743 Synchronized Compare-Literal behavior in FullCodegen and Hydrogen 744 (Chromium issue 260345). 745 746 Performance and stability improvements on all platforms. 747 748 749 2013-07-17: Version 3.20.6 750 751 Try to remove invalidated stubs before falling back to checking the 752 constant state (Chromium issue 260585). 753 754 Fixed gyp_v8 to work with use_system_icu=1 (issue 2475). 755 756 Fixed sloppy-mode 'const' under Harmony flag (Chromium issue 173361). 757 758 Use internal array as API function cache (Chromium issue 260106). 759 760 Fixed possible stack overflow in range analysis 761 (Chromium issue 259452). 762 763 Performance and stability improvements on all platforms. 764 765 766 2013-07-15: Version 3.20.5 767 768 Ensured that the length of frozen arrays is immutable 769 (issue 2711, Chromium issue 259548). 770 771 Performance and stability improvements on all platforms. 772 773 774 2013-07-10: Version 3.20.4 775 776 Fixed garbage-collection issue that causes a crash on ARM 777 (Chromium issue 254570) 778 779 Performance and stability improvements on all platforms. 780 781 782 2013-07-08: Version 3.20.3 783 784 Performance and stability improvements on all platforms. 785 786 787 2013-07-05: Version 3.20.2 788 789 Remove deprecated heap profiler methods from V8 public API 790 791 Mark i18n functions as native and set proper names 792 (issue 2745) 793 794 Correctly report stack trace when current function is FunctionApply 795 builtin (Chromium issue 252097) 796 797 Enable GDBJIT interface for standalone by default. 798 799 Fix debuggersupport=off build. (issue 2754) 800 801 Introduce -m64 flag for making x64 when the default gcc compiler is for 802 X32 803 804 Performance and stability improvements on all platforms. 805 806 807 2013-07-02: Version 3.20.1 808 809 Implemented WeakMap.prototype.clear function. (issue 2753) 810 811 Ensure CheckInitialized is present independent of define. 812 (Chromium issue 255779) 813 814 Performance and stability improvements on all platforms. 815 816 817 2013-06-28: Version 3.20.0 818 819 Migrated several tests from blink to V8 repository. 820 821 Allowed users of the V8 API to distinguish between unset and undefined 822 HiddenValues (issue 2746). 823 824 Deprecated old style callbacks in the V8 API. 825 826 Turned on parallel recompilation. 827 828 Performance and stability improvements on all platforms. 829 830 831 2013-06-18: Version 3.19.18 832 833 Fixed read-only attribute of Function.length in strict mode. 834 (issue 2705) 835 836 Fixed Runtime_SetProperty to properly handle OOM failures 837 (Chromium issue 249873) 838 839 Emit deprecated check for constant function transitions. 840 (Chromium issue 250609) 841 842 Made MathFloorOfDiv optimization trigger more often 843 (Issue 2205) 844 845 Make more GCs in idle notification handler. 846 (Chromium issue 241815) 847 848 Increased default type info threshold. 849 (Issue 2730) 850 851 Performance and stability improvements on all platforms. 852 853 854 2013-06-14: Version 3.19.16 855 856 Performance and stability improvements on all platforms. 857 858 859 2013-06-13: Version 3.19.15 860 861 Performance and stability improvements on all platforms. 862 863 864 2013-06-13: Version 3.19.14 865 866 Fixed crashes when calling new Array(a) with a single argument that 867 could result in creating a holey array with a packed elements kind. 868 (Chromium issue 245480) 869 870 Fixed issues in parallel compilation. 871 (Chromium issue 248076) 872 873 Performance and stability improvements on all platforms. 874 875 876 2013-06-11: Version 3.19.13 877 878 Performance and stability improvements on all platforms. 879 880 881 2013-06-10: Version 3.19.12 882 883 Fixed arguments array access. (Chromium issue 247303) 884 885 Fixed bug in LookupForWrite. (Chromium issue 242332) 886 887 Performance and stability improvements on all platforms. 888 889 890 2013-06-07: Version 3.19.11 891 892 Performance and stability improvements on all platforms. 893 894 895 2013-06-06: Version 3.19.10 896 897 Performance and stability improvements on all platforms. 898 899 900 2013-06-05: Version 3.19.9 901 902 Implemented Load IC support for loading properties from primitive 903 values to avoid perpetual soft deopts. (Chromium issue 242512) 904 905 Implemented Freeing of PerThreadAssertData when possible to avoid 906 memory leak. (Chromium issue 246567) 907 908 Removed V8_USE_OLD_STYLE_PERSISTENT_HANDLE_VISITORS. 909 910 Performance and stability improvements on all platforms. 911 912 913 2013-06-03: Version 3.19.8 914 915 Fixed bug with inlining 'Array' function. (Chromium issue 244461) 916 917 Fixed initialization of literal objects. (Chromium issue 245424) 918 919 Fixed function name inferred inside closures. (Chromium issue 224884) 920 921 Performance and stability improvements on all platforms. 922 923 924 2013-05-31: Version 3.19.7 925 926 Added support for //# sourceURL similar to deprecated //@ sourceURL one. 927 (issue 2702) 928 929 Made sure IfBuilder::Return clears the current block. 930 (Chromium issue 243868) 931 932 Fixed two CPU profiler tests on ARM and MIPS simulators 933 (issue 2628) 934 935 Fixed idle incremental GC for large objects. 936 (Chromium issue 241815) 937 938 Disabled --optimize-constructed-arrays due to crashes 939 (Chromium issue 244461) 940 941 Performance and stability improvements on all platforms. 942 943 944 2013-05-28: Version 3.19.6 945 946 Fixed IfBuilder::Deopt to clear the current block 947 (Chromium issue 243868). 948 949 Performance and stability improvements on all platforms. 950 951 952 2013-05-27: Version 3.19.5 953 954 Reset regexp parser flag after scanning ahead for capture groups. 955 (issue 2690) 956 957 Removed flakiness in test-cpu-profiler/SampleWhenFrameIsNotSetup. 958 (issue 2628) 959 960 Performance and stability improvements on all platforms. 961 962 963 2013-05-24: Version 3.19.4 964 965 Fixed edge case in stack trace formatting. (Chromium issue 237617) 966 967 Fixed embedded new-space pointer in LCmpObjectEqAndBranch. (Chromium 968 issue 240032) 969 970 Made Object.freeze fast (issue 1858, Chromium issue 115960) 971 972 Fixed bogus deopt in BuildEmitDeepCopy for holey arrays. (Chromium issue 973 242924) 974 975 Performance and stability improvements on all platforms. 976 977 978 2013-05-22: Version 3.19.3 979 980 Performance and stability improvements on all platforms. 981 982 983 2013-05-17: Version 3.19.2 984 985 Fill in one-word-fillers for the unused property fields 986 (Chromium issue 240056). 987 988 Removed use_system_v8 logic from the mainline gyp file 989 (Chromium issue 226860). 990 991 Skip CPU profiler samples where top function's stack frame is not 992 set up properly (issue 2628). 993 994 Performance and stability improvements on all platforms. 995 996 997 2013-05-14: Version 3.19.1 998 999 Fixed missing hole check for loads from Smi arrays when all uses are 1000 changes (Chromium issue 233737) 1001 1002 Performance and stability improvements on all platforms. 1003 1004 1005 2013-05-10: Version 3.19.0 1006 1007 Deprecated Context::New which returns Persistent. 1008 1009 Added Persistent<T>::Reset which disposes the handle and redirects it to 1010 point to another object. 1011 1012 Deprecated WriteAscii and MayContainNonAscii. 1013 1014 Exposed AssertNoAllocation to API. 1015 1016 Performance and stability improvements on all platforms. 1017 1018 1019 2013-04-30: Version 3.18.5 1020 1021 Allowed setting debugger breakpoints on CompareNilICs (issue 2660) 1022 1023 Fixed beyond-heap load on x64 Crankshafted StringCharFromCode 1024 (Chromium issue 235311) 1025 1026 Change 'Parse error' to three more informative messages. 1027 (Chromium issue 2636) 1028 1029 Performance and stability improvements on all platforms. 1030 1031 1032 2013-04-26: Version 3.18.4 1033 1034 Added a preliminary API for ES6 ArrayBuffers 1035 1036 Replaced qsort with std::sort. (Chromium issue 2639) 1037 1038 Performance and stability improvements on all platforms. 1039 1040 1041 2013-04-24: Version 3.18.3 1042 1043 Exposed the GC under a name that is less collision prone than window.gc. 1044 (issue 2641) 1045 1046 Do not emit double values at their use sites. (Chromium issue 234101) 1047 1048 Added methods to allow resuming execution after calling 1049 TerminateExecution(). (issue 2361) 1050 1051 Performance and stability improvements on all platforms. 1052 1053 1054 2013-04-22: Version 3.18.2 1055 1056 OS::MemMove/OS::MemCopy: Don't call through to generated code when size 1057 == 0 to avoid prefetching invalid memory (Chromium issue 233500) 1058 1059 Removed heap snapshot size limit. (Chromium issue 232305) 1060 1061 Performance and stability improvements on all platforms. 1062 1063 1064 2013-04-18: Version 3.18.1 1065 1066 Removed SCons related files and deprecated test suite configurations. 1067 1068 Improved handling of unary plus (issue 2527). 1069 1070 Performance and stability improvements on all platforms. 1071 1072 1073 2013-04-17: Version 3.18.0 1074 1075 Enabled pretenuring of fast literals in high promotion mode. 1076 1077 Removed preparser library; link preparser executable against full V8. 1078 1079 Fixed set-up of intrinsic's 'constructor' properties. 1080 (Chromium issue 229445) 1081 1082 ES6 symbols: extended V8 API to support symbols (issue 2158). 1083 1084 Removed ARM support for VFP2. 1085 1086 Made __proto__ a real JavaScript accessor property. 1087 (issue 1949 and issue 2606) 1088 1089 Performance and stability improvements on all platforms. 1090 1091 1092 2013-04-04: Version 3.17.16 1093 1094 Stack trace API: poison stack frames below the first strict mode frame. 1095 (issue 2564) 1096 1097 Made Isolate::GetHeapStatistics robust against half-initialized 1098 isolates (Chromium issue 2591). 1099 1100 Finished implementation of ES6 symbols aka. private names (issue 2158). 1101 1102 Performance and stability improvements on all platforms. 1103 1104 1105 2013-03-21: Version 3.17.15 1106 1107 Rolled back API changes to maintain compatibility with older 1108 3.17.x versions of V8. 1109 1110 Disable zapping of global handles in release mode. 1111 1112 Always mark the entire valid prefix of the descriptor array. 1113 (Chromium issue 196331) 1114 1115 Use internal memcpy for CopyWords and when copying code. 1116 (Chromium issue 196330) 1117 1118 Performance and stability improvements on all platforms. 1119 1120 1121 2013-03-20: Version 3.17.14 1122 1123 Use internal memcpy when initializing code objects. 1124 (Chromium issue 196330) 1125 1126 Disabled weak embedded maps because of crashes. 1127 (Chromium issues 172489, 217858) 1128 1129 Performance and stability improvements on all platforms. 1130 1131 1132 2013-03-19: Version 3.17.13 1133 1134 Turned Flags into a uint32_t typedef (Chromium issue 194749). 1135 1136 Performance and stability improvements on all platforms. 1137 1138 1139 2013-03-18: Version 3.17.12 1140 1141 Unified kMaxArguments with number of bits used to encode it. 1142 (Chromium issue 211741) 1143 1144 Fixed detection of |handle_smi| case in 1145 HOptimizedGraphBuilder::HandlePolymorphicCallNamed. 1146 (Chromium issue 196583) 1147 1148 Performance and stability improvements on all platforms. 1149 1150 1151 2013-03-15: Version 3.17.11 1152 1153 Added a version of the v8::HandleScope constructor with an v8::Isolate 1154 parameter and made AdjustAmountOfExternalAllocatedMemory an instance 1155 method of v8::Isolate. 1156 (issue 2487) 1157 1158 Fixed two register allocator bugs (off-by-one error/failure 1159 propagation). (issue 2576) 1160 1161 Fixed huge heap snapshot when a heavily shared context has many 1162 variables. (Chromium issue 145687) 1163 1164 Performance and stability improvements on all platforms. 1165 1166 1167 2013-03-13: Version 3.17.10 1168 1169 Fixed heap snapshot creation for Harmony collections. (issue 2535) 1170 1171 Fixed register allocation corner case. (Chromium issue 177883) 1172 1173 Performance and stability improvements on all platforms. 1174 1175 1176 2013-03-08: Version 3.17.9 1177 1178 Restored Function()'s expected string representation. (issue 2470) 1179 1180 Enabled deprecatations (again). (issue 2487) 1181 1182 Avoid bool to Oddball conversions by being lazy. (issue 2491) 1183 1184 Added %p option to --logfile. 1185 1186 Hardened Function()'s parsing of function literals. (issue 2470) 1187 1188 ES6 symbols: Refine test for getOwnPropertyNames. (issue 2158) 1189 1190 Performance and stability improvements on all platforms. 1191 1192 1193 2013-03-07: Version 3.17.8 1194 1195 Added missing license headers. (Chromium issue 98597) 1196 1197 Inserted missing type cast in JSON.stringify. (issue 2570) 1198 1199 Reverted "Send SIGPROF signals on the profiler event processor thread" 1200 (issue 2571) 1201 1202 Fixed Array.length, String.length and Function.prototype LoadICs on x64. 1203 (issue 2568) 1204 1205 ES6 symbols: filter symbols form for-in loops and Object.keys. 1206 (issue 2158) 1207 1208 Properly handle misses for StoreArrayLengthStub on ia32 and x64 1209 (issue 2566) 1210 1211 Fixed x32 handling of Atomic64. (Chromium issue chromium-os:36866) 1212 1213 Removed "library" variable from standalone.gypi. (Chromium issue 111541) 1214 1215 Fixed HCheckSmiOrInt <-> HBoundsCheck interaction wrt. representations. 1216 (issue 2556) 1217 1218 Enabled zapping of disposed global handles in release mode. 1219 (Chromium issue 176056) 1220 1221 Added workaround for redefinition of __proto__ property. (issue 2565) 1222 1223 ES6 symbols: Allow symbols as property names. (issue 2158) 1224 1225 Performance and stability improvements on all platforms. 1226 1227 1228 2013-03-04: Version 3.17.7 1229 1230 Limited recursion in regexp compilation by a budget. 1231 (Chromium issue 178790) 1232 1233 ES6 symbols: Implemented Symbol intrinsic and basic functionality 1234 (issue 2158) 1235 1236 Performance and stability improvements on all platforms. 1237 1238 1239 2013-02-28: Version 3.17.6 1240 1241 Fixed materialization of arguments objects with unknown values. 1242 (Chromium issue 163530) 1243 1244 Set default number of sweeper threads to at most four. 1245 1246 Performance and stability improvements on all platforms. 1247 1248 1249 2013-02-27: Version 3.17.5 1250 1251 Made __proto__ a foreign callback on Object.prototype. 1252 (issue 621, issue 1949 and issue 2441) 1253 1254 Performance and stability improvements on all platforms. 1255 1256 1257 2013-02-25: Version 3.17.4 1258 1259 Performance and stability improvements on all platforms. 1260 1261 1262 2013-02-21: Version 3.17.3 1263 1264 Performance and stability improvements on all platforms. 1265 1266 1267 2013-02-19: Version 3.17.2 1268 1269 Removed bogus check for TOP register in deoptimizer. 1270 (Chromium issue 176943) 1271 1272 Made the Isolate parameter mandatory for internal HandleScopes. 1273 (issue 2487) 1274 1275 Fixed f.apply() optimization when declared arguments are mutated. 1276 (issue 2539) 1277 1278 Performance and stability improvements on all platforms. 1279 1280 1281 2013-02-14: Version 3.17.1 1282 1283 Performance and stability improvements on all platforms. 1284 1285 1286 2013-02-13: Version 3.17.0 1287 1288 Enabled parallel sweeping. 1289 1290 Don't try to unlink instructions twice during GVN 1291 (Chromium issue 175141) 1292 1293 Fixed code flusher disabling while marking incrementally. 1294 (Chromium issue 173458, 168582) 1295 1296 Don't use TLS for space iterators. 1297 (issue 2531) 1298 1299 Added new GetHeapStatistics API entry and deprecated old one. 1300 1301 Fixed DoubleStackSlot-to-DoubleStackSlot moves on ia32. Unified 1302 platform-independent code. 1303 (Chromium issue 173907) 1304 1305 Added --trace-array-abuse to help find OOB accesses. 1306 1307 Performance and stability improvements on all platforms. 1308 1309 1310 2013-02-06: Version 3.16.14 1311 1312 Performance and stability improvements on all platforms. 1313 1314 1315 2013-02-04: Version 3.16.13 1316 1317 Tagged stubs that rely on instance types as MEGAMORPHIC. 1318 (Chromium issue 173974) 1319 1320 Fixed clearing of dead dependent codes and verifing of weak 1321 embedded maps on full GC. (Chromium issue 172488,172489) 1322 1323 Made the arm port build cleanly with Clang. 1324 1325 Performance and stability improvements on all platforms. 1326 1327 1328 2013-01-31: Version 3.16.12 1329 1330 Performance and stability improvements on all platforms. 1331 1332 1333 2013-01-30: Version 3.16.11 1334 1335 Put making embedded maps in optimized code weak behind a flag. 1336 (Chromium issue 172488,172489) 1337 1338 Performance and stability improvements on all platforms. 1339 1340 1341 2013-01-25: Version 3.16.10 1342 1343 Avoid excessive memory usage during redundant phi elimination. 1344 (issue 2510) 1345 1346 Fixed additional spec violations wrt RegExp.lastIndex. 1347 (issue 2437) 1348 1349 Added Isolate parameter to Persistent class. 1350 (issue 2487) 1351 1352 Performance and stability improvements on all platforms. 1353 1354 1355 2013-01-24: Version 3.16.9 1356 1357 Made embedded maps in optimized code weak. 1358 (issue 2073) 1359 1360 Fixed corner case when JSFunction is evicted from flusher. 1361 (Chromium issue 168801) 1362 1363 Correctly set kCanBeDivByZero flag for HMathFloorOfDiv. 1364 (Chromium issue 171641) 1365 1366 Performance and stability improvements on all platforms. 1367 1368 1369 2013-01-23: Version 3.16.8 1370 1371 Correctly reset lastIndex in an RegExp object. 1372 (Chromium issue 170856) 1373 1374 Added a workaround for Windows compilation problems related to V8EXPORT. 1375 (issue 2507) 1376 1377 tools/run-tests.py: shlex.split() the value of --command-prefix 1378 (Chromium issue 171553) 1379 1380 Fixed pattern detection for replacing shifts by rotation. 1381 (Chromium issue 2499) 1382 1383 Performance and stability improvements on all platforms. 1384 1385 1386 2013-01-21: Version 3.16.7 1387 1388 Removed <(library) usage from v8.gyp. 1389 (Chromium issue 111541) 1390 1391 Fixed out of bounds memory access in TestJSArrayForAllocationSiteInfo. 1392 (Chromium issue 169928) 1393 1394 Performance and stability improvements on all platforms. 1395 1396 1397 2013-01-18: Version 3.16.6 1398 1399 Made the Isolate parameter mandatory in Locker and Unlocker classes. 1400 (issue 2487) 1401 1402 Avoid pointer underflow in CopyCharsUnsigned. 1403 (issue 2493) 1404 1405 Generate shim headers when using system v8. 1406 (Chromium issue 165264) 1407 1408 Fixed arguments materialization for inlined apply(). 1409 (issue 2489) 1410 1411 Sync'ed laziness between BuildFunctionInfo and MakeFunctionInfo. 1412 (Chromium issue 147497) 1413 1414 Added sanity check to CodeFlusher::AddCandidate. 1415 (Chromium issue 169209) 1416 1417 Performance and stability improvements on all platforms. 1418 1419 1420 2013-01-15: Version 3.16.5 1421 1422 Removed deprecated functions from V8's external API. 1423 1424 Prepared API for WebKit use of Latin-1. 1425 1426 Fixed V8 issue 2486. 1427 1428 Fixed Chromium issue 169723. 1429 1430 Performance and stability improvements on all platforms. 1431 1432 1433 2013-01-11: Version 3.16.4 1434 1435 Fixed Chromium issues 168545 and 169209. 1436 1437 Performance and stability improvements on all platforms. 1438 1439 1440 2013-01-09: Version 3.16.3 1441 1442 Improved GC performance when moving parts of a FixedArray (issue 2452). 1443 1444 Enabled readline on d8 while building a shared lib (issue 1781). 1445 1446 Fixed missing exception check in typed array constructor 1447 (Chromium issue 168545). 1448 1449 Check for read-only-ness when preparing for array sort (issue 2419). 1450 1451 Performance and stability improvements on all platforms. 1452 1453 1454 2013-01-04: Version 3.16.2 1455 1456 Added Makefile options to build for the Raspberry Pi (armv7=0, 1457 arm_fpu=vfp2). 1458 1459 Performance and stability improvements on all platforms. 1460 1461 1462 2012-12-27: Version 3.16.1 1463 1464 Fixed x64 MathMinMax for negative untagged int32 arguments. 1465 (Chromium issue 164442) 1466 1467 Fixed FloatingPointHelper::CheckSSE2OperandIsInt32. 1468 (issue 2458) 1469 1470 Performance and stability improvements on all platforms. 1471 1472 1473 2012-12-21: Version 3.16.0 1474 1475 V8_Fatal now prints C++ stack trace in debug mode. 1476 1477 Added HTML-based tick processor. 1478 1479 Continued implementation of Object.observe (V8 issue 2409). 1480 1481 Fixed V8 issues 2243, 2340, 2393, 2399, 2457. 1482 1483 Fixed Chromium issues 125308, 165637, 166379, 166553. 1484 1485 Performance and stability improvements on all platforms. 1486 1487 1488 2012-12-10: Version 3.15.11 1489 1490 Define CAN_USE_VFP2/3_INSTRUCTIONS based on arm_neon and arm_fpu GYP 1491 flags. 1492 1493 Performance and stability improvements on all platforms. 1494 1495 1496 2012-12-07: Version 3.15.10 1497 1498 Enabled optimisation of functions inside eval. (issue 2315) 1499 1500 Fixed spec violations in methods of Number.prototype. (issue 2443) 1501 1502 Added GCTracer metrics for a scavenger GC for DOM wrappers. 1503 1504 Performance and stability improvements on all platforms. 1505 1506 1507 2012-12-06: Version 3.15.9 1508 1509 Fixed candidate eviction in code flusher. 1510 (Chromium issue 159140) 1511 1512 Iterate through all arguments for side effects in Math.min/max. 1513 (issue 2444) 1514 1515 Fixed spec violations related to regexp.lastIndex 1516 (issue 2437, issue 2438) 1517 1518 Performance and stability improvements on all platforms. 1519 1520 1521 2012-12-04: Version 3.15.8 1522 1523 Enforced stack allocation of TryCatch blocks. 1524 (issue 2166,chromium:152389) 1525 1526 Fixed external exceptions in external try-catch handlers. 1527 (issue 2166) 1528 1529 Activated incremental code flushing by default. 1530 1531 Performance and stability improvements on all platforms. 1532 1533 1534 2012-11-30: Version 3.15.7 1535 1536 Activated code aging by default. 1537 1538 Included more information in --prof log. 1539 1540 Removed eager sweeping for lazy swept spaces. Try to find in 1541 SlowAllocateRaw a bounded number of times a big enough memory slot. 1542 (issue 2194) 1543 1544 Performance and stability improvements on all platforms. 1545 1546 1547 2012-11-26: Version 3.15.6 1548 1549 Ensure double arrays are filled with holes when extended from 1550 variations of empty arrays. (Chromium issue 162085) 1551 1552 Performance and stability improvements on all platforms. 1553 1554 1555 2012-11-23: Version 3.15.5 1556 1557 Fixed JSON.stringify for objects with interceptor handlers. 1558 (Chromium issue 161028) 1559 1560 Fixed corner case in x64 compare stubs. (issue 2416) 1561 1562 Performance and stability improvements on all platforms. 1563 1564 1565 2012-11-16: Version 3.15.4 1566 1567 Fixed Array.prototype.join evaluation order. (issue 2263) 1568 1569 Perform CPU sampling by CPU sampling thread only iff processing thread 1570 is not running. (issue 2364) 1571 1572 When using an Object as a set in Object.getOwnPropertyNames, null out 1573 the proto. (issue 2410) 1574 1575 Disabled EXTRA_CHECKS in Release build. 1576 1577 Heap explorer: Show representation of strings. 1578 1579 Removed 'type' and 'arguments' properties from Error object. 1580 (issue 2397) 1581 1582 Added atomics implementation for ThreadSanitizer v2. 1583 (Chromium issue 128314) 1584 1585 Fixed LiveEdit crashes when object/array literal is added. (issue 2368) 1586 1587 Performance and stability improvements on all platforms. 1588 1589 1590 2012-11-13: Version 3.15.3 1591 1592 Changed sample shell to send non-JS output (e.g. errors) to stderr 1593 instead of stdout. 1594 1595 Correctly check for stack overflow even when interrupt is pending. 1596 (issue 214) 1597 1598 Collect stack trace on stack overflow. (issue 2394) 1599 1600 Performance and stability improvements on all platforms. 1601 1602 1603 2012-11-12: Version 3.15.2 1604 1605 Function::GetScriptOrigin supplies sourceURL when script name is 1606 not available. (Chromium issue 159413) 1607 1608 Made formatting error message side-effect-free. (issue 2398) 1609 1610 Fixed length check in JSON.stringify. (Chromium issue 160010) 1611 1612 ES6: Added support for Set and Map clear method (issue 2400) 1613 1614 Fixed slack tracking when instance prototype changes. 1615 (Chromium issue 157019) 1616 1617 Fixed disabling of code flusher while marking. (Chromium issue 159140) 1618 1619 Added a test case for object grouping in a scavenger GC (issue 2077) 1620 1621 Support shared library build of Android for v8. 1622 (Chromium issue 158821) 1623 1624 ES6: Added support for size to Set and Map (issue 2395) 1625 1626 Performance and stability improvements on all platforms. 1627 1628 1629 2012-11-06: Version 3.15.1 1630 1631 Put incremental code flushing behind a flag. (Chromium issue 159140) 1632 1633 Performance and stability improvements on all platforms. 1634 1635 1636 2012-10-31: Version 3.15.0 1637 1638 Loosened aligned code target requirement on ARM (issue 2380) 1639 1640 Fixed JSON.parse to treat leading zeros correctly. 1641 (Chromium issue 158185) 1642 1643 Performance and stability improvements on all platforms. 1644 1645 1646 2012-10-22: Version 3.14.5 1647 1648 Killed off the SCons based build. 1649 1650 Added a faster API for creating v8::Integer objects. 1651 1652 Speeded up function deoptimization by avoiding quadratic pass over 1653 optimized function list. (Chromium issue 155270) 1654 1655 Always invoke the default Array.sort functions from builtin functions. 1656 (issue 2372) 1657 1658 Reverted recent CPU profiler changes because they broke --prof. 1659 (issue 2364) 1660 1661 Switched code flushing to use different JSFunction field. 1662 (issue 1609) 1663 1664 Performance and stability improvements on all platforms. 1665 1666 1667 2012-10-15: Version 3.14.4 1668 1669 Allow evals for debugger even if they are prohibited in the debugee 1670 context. (Chromium issue 154733) 1671 1672 Enabled --verify-heap in release mode (issue 2120) 1673 1674 Performance and stability improvements on all platforms. 1675 1676 1677 2012-10-11: Version 3.14.3 1678 1679 Use native context to retrieve ErrorMessageForCodeGenerationFromStrings 1680 (Chromium issue 155076). 1681 1682 Bumped variable limit further to 2^17 (Chromium issue 151625). 1683 1684 Performance and stability improvements on all platforms. 1685 1686 1687 2012-10-10: Version 3.14.2 1688 1689 ARM: allowed VFP3 instructions when hardfloat is enabled. 1690 (Chromium issue 152506) 1691 1692 Fixed instance_descriptors() and PushStackTraceAndDie regressions. 1693 (Chromium issue 151749) 1694 1695 Made GDBJIT interface compile again. (issue 1804) 1696 1697 Fixed Accessors::FunctionGetPrototype's proto chain traversal. 1698 (Chromium issue 143967) 1699 1700 Made sure that names of temporaries do not clash with real variables. 1701 (issue 2322) 1702 1703 Rejected local module declarations. (Chromium issue 150628) 1704 1705 Rejected uses of lexical for-loop variable on the RHS. (issue 2322) 1706 1707 Fixed slot recording of code target patches. 1708 (Chromium issue 152615,chromium:144230) 1709 1710 Changed the Android makefile to use GCC 4.6 instead of GCC 4.4.3. 1711 1712 Performance and stability improvements on all platforms. 1713 1714 1715 2012-10-01: Version 3.14.1 1716 1717 Don't set -m32 flag when compiling with Android ARM compiler. 1718 (Chromium issue 143889) 1719 1720 Restore the descriptor array before returning allocation failure. 1721 (Chromium issue 151750) 1722 1723 Lowered kMaxVirtualRegisters (v8 issue 2139, Chromium issues 123822 and 1724 128252). 1725 1726 Pull more recent gyp in 'make dependencies'. 1727 1728 Made sure that the generic KeyedStoreIC changes length and element_kind 1729 atomically (issue 2346). 1730 1731 Bumped number of allowed variables per scope to 65535, to address GWT. 1732 (Chromium issue 151625) 1733 1734 Support sourceURL for dynamically inserted scripts (issue 2342). 1735 1736 Performance and stability improvements on all platforms. 1737 1738 1739 2012-09-20: Version 3.14.0 1740 1741 Fixed missing slot recording during clearing of CallICs. 1742 (Chromium issue 144230) 1743 1744 Fixed LBoundsCheck on x64 to handle (stack slot + constant) correctly. 1745 (Chromium issue 150729) 1746 1747 Fixed minus zero test. (Issue 2133) 1748 1749 Fixed setting array length to zero for slow elements. 1750 (Chromium issue 146910) 1751 1752 Fixed lost arguments dropping in HLeaveInlined. 1753 (Chromium issue 150545) 1754 1755 Fixed casting error for receiver of interceptors. 1756 (Chromium issue 149912) 1757 1758 Throw a more descriptive exception when blocking 'eval' via CSP. 1759 (Chromium issue 140191) 1760 1761 Fixed debugger's eval when close to stack overflow. (issue 2318) 1762 1763 Added checks to live edit. (issue 2297) 1764 1765 Switched on code compaction on incremental GCs. 1766 1767 Fixed caching of optimized code for OSR. (issue 2326) 1768 1769 Not mask exception thrown by toString in String::UtfValue etc. 1770 (issue 2317) 1771 1772 Fixed API check for length of external arrays. (Chromium issue 148896) 1773 1774 Ensure correct enumeration indices in the dict (Chromium issue 148376) 1775 1776 Correctly initialize regexp global cache. (Chromium issue 148378) 1777 1778 Fixed arguments object materialization during deopt. (issue 2261) 1779 1780 Introduced new API to expose external string resource regardless of 1781 encoding. 1782 1783 Fixed CHECK failure in LCodeGen::DoWrapReceiver when 1784 --deopt-every-n-times flag is present 1785 (Chromium issue 148389) 1786 1787 Fixed edge case of extension with NULL as source string. 1788 (Chromium issue 144649) 1789 1790 Fixed array index dehoisting. (Chromium issue 141395) 1791 1792 Performance and stability improvements on all platforms. 1793 1794 1795 2012-09-11: Version 3.13.7 1796 1797 Enable/disable LiveEdit using the (C++) debug API. 1798 1799 Performance and stability improvements on all platforms. 1800 1801 1802 2012-09-06: Version 3.13.6 1803 1804 Added validity checking to API functions and calls. 1805 1806 Disabled accessor inlining (Chromium issue 134609). 1807 1808 Fixed bug in Math.min/max in optimized code (Chromium issue 145961). 1809 1810 Directly use %ObjectKeys in json stringify (Chromium issue 2312). 1811 1812 Fixed VS2005 build (issue 2313). 1813 1814 Activated fixed ES5 readonly semantics by default. 1815 1816 Added hardfp flag to the Makefile. 1817 1818 Performance and stability improvements on all platforms. 1819 1820 1821 2012-08-29: Version 3.13.5 1822 1823 Release stack trace data after firing Error.stack accessor. 1824 (issue 2308) 1825 1826 Added a new API V8::SetJitCodeEventHandler to push code name and 1827 location to users such as profilers. 1828 1829 Allocate block-scoped global bindings to global context. 1830 1831 Performance and stability improvements on all platforms. 1832 1833 1834 2012-08-28: Version 3.13.4 1835 1836 Print reason for disabling optimization. Kill --trace-bailout flag. 1837 1838 Provided option to disable full DEBUG build on Android. 1839 1840 Introduced global contexts to represent lexical global scope(s). 1841 1842 Fixed rounding in Uint8ClampedArray setter. (issue 2294) 1843 1844 Performance and stability improvements on all platforms. 1845 1846 1847 2012-08-21: Version 3.13.3 1848 1849 Performance and stability improvements on all platforms. 1850 1851 1852 2012-08-20: Version 3.13.2 1853 1854 Performance and stability improvements on all platforms. 1855 1856 1857 2012-08-16: Version 3.13.1 1858 1859 Performance and stability improvements on all platforms. 1860 1861 1862 2012-08-10: Version 3.13.0 1863 1864 Added histograms for total allocated/live heap size, as well as 1865 allocated size and percentage of total for map and cell space. 1866 1867 Fixed parseInt's octal parsing behavior (ECMA-262 Annex E 15.1.2.2). 1868 (issue 1645) 1869 1870 Added checks for interceptors to negative lookup code in Crankshaft. 1871 (Chromium issue 140473) 1872 1873 Made incremental marking clear ICs and type feedback cells. 1874 1875 Performance and stability improvements on all platforms. 1876 1877 1878 2012-08-01: Version 3.12.19 1879 1880 Performance and stability improvements on all platforms. 1881 1882 1883 2012-07-30: Version 3.12.18 1884 1885 Forced using bit-pattern for signed zero double. (issue 2239) 1886 1887 Made sure double to int conversion is correct. (issue 2260) 1888 1889 Performance and stability improvements on all platforms. 1890 1891 1892 2012-07-27: Version 3.12.17 1893 1894 Always set the callee's context when calling a function from optimized 1895 code. 1896 (Chromium issue 138887) 1897 1898 Fixed building with GCC 3.x 1899 (issue 2016, 2017) 1900 1901 Improved API calls that return empty handles. 1902 (issue 2245) 1903 1904 Performance and stability improvements on all platforms. 1905 1906 1907 2012-07-25: Version 3.12.16 1908 1909 Performance and stability improvements on all platforms. 1910 1911 1912 2012-07-24: Version 3.12.15 1913 1914 Added PRESERVE_ASCII_NULL option to String::WriteAscii. 1915 (issue 2252) 1916 1917 Added dependency to HLoadKeyed* instructions to prevent invalid 1918 hoisting. (Chromium issue 137768) 1919 1920 Enabled building d8 for Android on Mac. 1921 1922 Interpret negative hexadecimal literals as NaN. 1923 (issue 2240) 1924 1925 Expose counters in javascript when using --track-gc-object-stats. 1926 1927 Enabled building and testing V8 on Android IA. 1928 1929 Added --trace-parse flag to parser. 1930 1931 Performance and stability improvements on all platforms. 1932 1933 1934 2012-07-18: Version 3.12.14 1935 1936 Deactivated optimization of packed arrays. 1937 (Chromium issue 137768) 1938 1939 Fixed broken accessor transition. 1940 (Chromium issue 137689) 1941 1942 Performance and stability improvements on all platforms. 1943 1944 1945 2012-07-17: Version 3.12.13 1946 1947 Fixed missing tagging of stack value in finally block. 1948 (Chromium issue 137496) 1949 1950 Added more support for heap analysis. 1951 1952 Performance and stability improvements on all platforms. 1953 1954 1955 2012-07-16: Version 3.12.12 1956 1957 Added an option to the tickprocessor to specify the directory for lib 1958 lookup. 1959 1960 Fixed ICs for slow objects with native accessor (Chromium issue 137002). 1961 1962 Fixed transcendental cache on ARM in optimized code (issue 2234). 1963 1964 New heap inspection tools: counters for object sizes and counts, 1965 histograms for external fragmentation. 1966 1967 Incorporated constness into inferred interfaces (in preparation for 1968 handling imports) (issue 1569). 1969 1970 Performance and stability improvements on all platforms. 1971 1972 1973 2012-07-12: Version 3.12.11 1974 1975 Renamed "mips" arch to "mipsel" in the GYP build. 1976 1977 Fixed computation of call targets on prototypes in Crankshaft. 1978 (Chromium issue 125148) 1979 1980 Removed use of __lookupGetter__ when generating stack trace. 1981 (issue 1591) 1982 1983 Turned on ES 5.2 globals semantics by default. 1984 (issue 1991, Chromium issue 80591) 1985 1986 Synced preparser and parser wrt syntax error in switch..case. 1987 (issue 2210) 1988 1989 Fixed reporting of octal literals in strict mode when preparsing. 1990 (issue 2220) 1991 1992 Fixed inline constructors for Harmony Proxy prototypes. 1993 (issue 2225) 1994 1995 Performance and stability improvements on all platforms. 1996 1997 1998 2012-07-10: Version 3.12.10 1999 2000 Re-enabled and fixed issue with array bounds check elimination 2001 (Chromium issue 132114). 2002 2003 Fixed Debug::Break crash. (Chromium issue 131642) 2004 2005 Added optimizing compiler support for JavaScript getters. 2006 2007 Performance and stability improvements on all platforms. 2008 2009 2010 2012-07-06: Version 3.12.9 2011 2012 Correctly advance the scanner when scanning unicode regexp flag. 2013 (Chromium issue 136084) 2014 2015 Fixed unhandlified code calling Harmony Proxy traps. 2016 (issue 2219) 2017 2018 Performance and stability improvements on all platforms. 2019 2020 2021 2012-07-05: Version 3.12.8 2022 2023 Implemented TypedArray.set and ArrayBuffer.slice in d8. 2024 2025 Performance and stability improvements on all platforms. 2026 2027 2028 2012-07-03: Version 3.12.7 2029 2030 Fixed lazy compilation for strict eval scopes. 2031 (Chromium issue 135066) 2032 2033 Made MACOSX_DEPLOYMENT_TARGET configurable in GYP. 2034 (issue 2151) 2035 2036 Report "hidden properties" in heap profiler for properties case. 2037 (issue 2212) 2038 2039 Activated optimization of packed arrays by default. 2040 2041 Performance and stability improvements on all platforms. 2042 2043 2044 2012-06-29: Version 3.12.6 2045 2046 Cleaned up hardfp ABI detection for ARM (V8 issue 2140). 2047 2048 Extended TypedArray support in d8. 2049 2050 2051 2012-06-28: Version 3.12.5 2052 2053 Fixed lazy parsing heuristics to respect outer scope. 2054 (Chromium issue 135008) 2055 2056 Allow using test-wrapper-gypbuild.py on Windows when no python 2057 interpreter is registered. 2058 2059 Performance and stability improvements on all platforms. 2060 2061 2062 2012-06-27: Version 3.12.4 2063 2064 Removed -fomit-frame-pointer flag from Release builds to make 2065 the stack walkable by TCMalloc (Chromium issue 133723). 2066 2067 Ported r7868 (constant masking) to x64 (issue 1374). 2068 2069 Expose more detailed memory statistics (issue 2201). 2070 2071 Fixed Harmony Maps and WeakMaps for undefined values 2072 (Chromium issue 132744). 2073 2074 Correctly throw reference error in strict mode with ICs disabled 2075 (issue 2119). 2076 2077 Performance and stability improvements on all platforms. 2078 2079 2080 2012-06-25: Version 3.12.3 2081 2082 Reverted r11835 'Unify promotion and allocation limit computation' due 2083 to V8 Splay performance regression on Mac. (Chromium issue 134183) 2084 2085 Fixed sharing of literal boilerplates for optimized code. (issue 2193) 2086 2087 Performance and stability improvements on all platforms. 2088 2089 2090 2012-06-22: Version 3.12.2 2091 2092 Made near-jump check more strict in LoadNamedFieldPolymorphic on 2093 ia32/x64. (Chromium issue 134055) 2094 2095 Fixed lazy sweeping heuristics to prevent old-space expansion. 2096 (issue 2194) 2097 2098 Performance and stability improvements on all platforms. 2099 2100 2101 2012-06-21: Version 3.12.1 2102 2103 Performance and stability improvements on all platforms. 2104 2105 2106 2012-06-20: Version 3.12.0 2107 2108 Fixed Chromium issues: 2109 115100, 129628, 131994, 132727, 132741, 132742, 133211 2110 2111 Fixed V8 issues: 2112 915, 1914, 2034, 2087, 2094, 2134, 2156, 2166, 2172, 2177, 2179, 2185 2113 2114 Added --extra-code flag to mksnapshot to load JS code into the VM 2115 before creating the snapshot. 2116 2117 Support 'restart call frame' command in the debugger. 2118 2119 Performance and stability improvements on all platforms. 2120 2121 2122 2012-06-13: Version 3.11.10 2123 2124 Implemented heap profiler memory usage reporting. 2125 2126 Preserved error message during finally block in try..finally. 2127 (Chromium issue 129171) 2128 2129 Fixed EnsureCanContainElements to properly handle double values. 2130 (issue 2170) 2131 2132 Improved heuristics to keep objects in fast mode with inherited 2133 constructors. 2134 2135 Performance and stability improvements on all platforms. 2136 2137 2138 2012-06-06: Version 3.11.9 2139 2140 Implemented ES5-conformant semantics for inherited setters and read-only 2141 properties. Currently behind --es5_readonly flag, because it breaks 2142 WebKit bindings. 2143 2144 Exposed last seen heap object id via v8 public api. 2145 2146 Performance and stability improvements on all platforms. 2147 2148 2149 2012-05-31: Version 3.11.8 2150 2151 Avoid overdeep recursion in regexp where a guarded expression with a 2152 minimum repetition count is inside another quantifier. 2153 (Chromium issue 129926) 2154 2155 Fixed missing write barrier in store field stub. 2156 (issues 2143, 1465, Chromium issue 129355) 2157 2158 Proxies: Fixed receiver for setters inherited from proxies. 2159 Proxies: Fixed ToStringArray function so that it does not reject some 2160 keys. 2161 (issue 1543) 2162 2163 Performance and stability improvements on all platforms. 2164 2165 2166 2012-05-29: Version 3.11.7 2167 2168 Get better function names in stack traces. 2169 2170 Performance and stability improvements on all platforms. 2171 2172 2173 2012-05-24: Version 3.11.6 2174 2175 Fixed RegExp.prototype.toString for incompatible receivers 2176 (issue 1981). 2177 2178 Performance and stability improvements on all platforms. 2179 2180 2181 2012-05-23: Version 3.11.5 2182 2183 Performance and stability improvements on all platforms. 2184 2185 2186 2012-05-22: Version 3.11.4 2187 2188 Some cleanup to common.gypi. This fixes some host/target combinations 2189 that weren't working in the Make build on Mac. 2190 2191 Handle EINTR in socket functions and continue incomplete sends. 2192 (issue 2098) 2193 2194 Fixed python deprecations. (issue 1391) 2195 2196 Made socket send and receive more robust and return 0 on failure. 2197 (Chromium issue 15719) 2198 2199 Fixed GCC 4.7 (C++11) compilation. (issue 2136) 2200 2201 Set '-m32' option for host and target platforms 2202 2203 Performance and stability improvements on all platforms. 2204 2205 2206 2012-05-18: Version 3.11.3 2207 2208 Disable optimization for functions that have scopes that cannot be 2209 reconstructed from the context chain. (issue 2071) 2210 2211 Define V8_EXPORT to nothing for clients of v8. (Chromium issue 90078) 2212 2213 Correctly check for native error objects. (Chromium issue 2138) 2214 2215 Performance and stability improvements on all platforms. 2216 2217 2218 2012-05-16: Version 3.11.2 2219 2220 Revert r11496. (Chromium issue 128146) 2221 2222 Implement map collection for incremental marking. (issue 1465) 2223 2224 Add toString method to CallSite (which describes a frame of the 2225 stack trace). 2226 2227 2228 2012-05-15: Version 3.11.1 2229 2230 Added a readbuffer function to d8 that reads a file into an ArrayBuffer. 2231 2232 Fix freebsd build. (V8 issue 2126) 2233 2234 Performance and stability improvements on all platforms. 2235 2236 2237 2012-05-11: Version 3.11.0 2238 2239 Fixed compose-discard crasher from r11524 (issue 2123). 2240 2241 Activated new global semantics by default. Global variables can 2242 now shadow properties of the global object (ES5.1 erratum). 2243 2244 Properly set ElementsKind of empty FAST_DOUBLE_ELEMENTS arrays when 2245 transitioning (Chromium issue 117409). 2246 2247 Made Error.prototype.name writable again, as required by the spec and 2248 the web (Chromium issue 69187). 2249 2250 Implemented map collection with incremental marking (issue 1465). 2251 2252 Regexp: Fixed overflow in min-match-length calculation 2253 (Chromium issue 126412). 2254 2255 MIPS: Fixed illegal instruction use on Loongson in code for 2256 Math.random() (issue 2115). 2257 2258 Fixed crash bug in VisitChoice (Chromium issue 126272). 2259 2260 Fixed unsigned-Smi check in MappedArgumentsLookup 2261 (Chromium issue 126414). 2262 2263 Fixed LiveEdit for function with no locals (issue 825). 2264 2265 Fixed register clobbering in LoadIC for interceptors 2266 (Chromium issue 125988). 2267 2268 Implemented clearing of CompareICs (issue 2102). 2269 2270 Performance and stability improvements on all platforms. 2271 2272 2273 2012-05-03: Version 3.10.8 2274 2275 Enabled MIPS cross-compilation. 2276 2277 Ensured reload of elements pointer in StoreFastDoubleElement stub. 2278 (Chromium issue 125515) 2279 2280 Fixed corner cases in truncation behavior when storing to 2281 TypedArrays. (issue 2110) 2282 2283 Fixed failure to properly recognize and report out-of-memory 2284 conditions when allocating code space pages. (Chromium issue 2285 118625) 2286 2287 Fixed idle notifications to perform a round of incremental GCs 2288 after context disposal. (issue 2107) 2289 2290 Fixed preparser for try statement. (issue 2109) 2291 2292 Performance and stability improvements on all platforms. 2293 2294 2295 2012-04-30: Version 3.10.7 2296 2297 Performance and stability improvements on all platforms. 2298 2299 2300 2012-04-26: Version 3.10.6 2301 2302 Fixed some bugs in accessing details of the last regexp match. 2303 2304 Fixed source property of empty RegExp objects. (issue 1982) 2305 2306 Enabled inlining some V8 API functions. 2307 2308 Performance and stability improvements on all platforms. 2309 2310 2311 2012-04-23: Version 3.10.5 2312 2313 Put new global var semantics behind a flag until WebKit tests are 2314 cleaned up. 2315 2316 Enabled stepping into callback passed to builtins. 2317 (Chromium issue 109564) 2318 2319 Performance and stability improvements on all platforms. 2320 2321 2322 2012-04-19: Version 3.10.4 2323 2324 Fixed issues when stressing compaction with WeakMaps. 2325 2326 Fixed missing GVN flag for new-space promotion. (Chromium issue 123919) 2327 2328 Simplify invocation sequence at monomorphic function invocation sites. 2329 (issue 2079) 2330 2331 Performance and stability improvements on all platforms. 2332 2333 2334 2012-04-17: Version 3.10.3 2335 2336 Fixed several bugs in heap profiles (including issue 2078). 2337 2338 Throw syntax errors on illegal escape sequences. 2339 2340 Implemented rudimentary module linking (behind --harmony flag) 2341 2342 Implemented ES5 erratum: Global declarations should shadow 2343 inherited properties. 2344 2345 Made handling of const more consistent when combined with 'eval' 2346 and 'with'. 2347 2348 Fixed V8 on MinGW-x64 (issue 2026). 2349 2350 Performance and stability improvements on all platforms. 2351 2352 2353 2012-04-13: Version 3.10.2 2354 2355 Fixed native ARM build (issues 1744, 539) 2356 2357 Return LOOKUP variable instead of CONTEXT for non-context allocated 2358 outer scope parameters (Chromium issue 119609). 2359 2360 Fixed regular and ElementsKind transitions interfering with each other 2361 (Chromium issue 122271). 2362 2363 Improved performance of keyed loads/stores which have a HeapNumber 2364 index (issues 1388, 1295). 2365 2366 Fixed WeakMap processing for evacuation candidates (issue 2060). 2367 2368 Bailout on possible direct eval calls (Chromium issue 122681). 2369 2370 Do not assume that names of function expressions are context-allocated 2371 (issue 2051). 2372 2373 Performance and stability improvements on all platforms. 2374 2375 2376 2012-04-10: Version 3.10.1 2377 2378 Fixed bug with arguments object in inlined functions (issue 2045). 2379 2380 Fixed performance bug with lazy initialization (Chromium issue 2381 118686). 2382 2383 Added suppport for Mac OS X 64bit builds with GYP. 2384 (Patch contributed by Filipe David Manana <fdmanana (a] gmail.com>) 2385 2386 Fixed bug with hidden properties (issue 2034). 2387 2388 Fixed a performance bug when reloading pages (Chromium issue 117767, 2389 V8 issue 1902). 2390 2391 Fixed bug when optimizing throw in top-level code (issue 2054). 2392 2393 Fixed two bugs with array literals (issue 2055, Chromium issue 121407). 2394 2395 Fixed bug with Math.min/Math.max with NaN inputs (issue 2056). 2396 2397 Fixed a bug with the new runtime profiler (Chromium issue 121147). 2398 2399 Fixed compilation of V8 using uClibc. 2400 2401 Optimized boot-up memory use. 2402 2403 Optimized regular expressions. 2404 2405 2406 2012-03-30: Version 3.10.0 2407 2408 Fixed store IC writability check in strict mode 2409 (Chromium issue 120099). 2410 2411 Resynchronize timers if the Windows system time was changed. 2412 (Chromium issue 119815) 2413 2414 Removed "-mfloat-abi=hard" from host compiler cflags when building for 2415 hardfp ARM 2416 (https://code.google.com/p/chrome-os-partner/issues/detail?id=8539) 2417 2418 Fixed edge case for case independent regexp character classes 2419 (issue 2032). 2420 2421 Reset function info counters after context disposal. 2422 (Chromium issue 117767, V8 issue 1902) 2423 2424 Fixed missing write barrier in CopyObjectToObjectElements. 2425 (Chromium issue 119926) 2426 2427 Fixed missing bounds check in HasElementImpl. 2428 (Chromium issue 119925) 2429 2430 Performance and stability improvements on all platforms. 2431 2432 2433 2012-03-23: Version 3.9.24 2434 2435 Activated count-based profiler for ARM. 2436 2437 Fixed use of proxies as f.prototype properties. (issue 2021) 2438 2439 Enabled snapshots on MIPS. 2440 2441 Performance and stability improvements on all platforms. 2442 2443 2444 2012-03-21: Version 3.9.23 2445 2446 Use correct arguments adaptation environment when inlining function 2447 containing arguments. (Issue 2014) 2448 2449 Performance and stability improvements on all platforms. 2450 2451 2452 2012-03-20: Version 3.9.22 2453 2454 Enabled count-based profiler by default. 2455 2456 Implemented a hash based look-up to speed up address checks 2457 in large object space (issue 853). 2458 2459 Performance and stability improvements on all platforms. 2460 2461 2462 2012-03-19: Version 3.9.21 2463 2464 Fixed push-to-trunk script (and re-push). 2465 2466 Added API call that identifies strings that are guaranteed only to 2467 contain ASCII characters. 2468 2469 2470 2012-03-19: Version 3.9.20 2471 2472 Fixed declarations escaping global strict eval. (Issue 1624) 2473 2474 Fixed wrapping of receiver for non-strict callbacks. (Issue 1973) 2475 2476 Fixed function declarations overwriting read-only global properties. 2477 (Chromium issue 115452) 2478 2479 Fixed --use-strict flag in combination with --harmony[-scoping]. 2480 2481 Debugger: naive implementation of "step into Function.prototype.bind". 2482 2483 Debugger: added ability to set script source from within OnBeforeCompile 2484 2485 Added flag to always call DebugBreak on abort. 2486 2487 Re-enabled constructor inlining and inline === comparison with boolean 2488 constants. (Issue 2009) 2489 2490 Don't use an explicit s0 in ClampDoubleToUint8. (Issue 2004) 2491 2492 Performance and stability improvements on all platforms. 2493 2494 2495 2012-03-14: Version 3.9.19 2496 2497 Ensure there is a smi check of the receiver for global load and call 2498 ICs (Chromium issue 117794). 2499 2500 Performance and stability improvements on all platforms. 2501 2502 2503 2012-03-13: Version 3.9.18 2504 2505 Ensure consistency of Math.sqrt on Intel platforms. 2506 2507 Remove static initializers in v8. (issue 1859) 2508 2509 Add explicit dependency on v8_base in the GYP-based build. 2510 2511 Performance and stability improvements on all platforms. 2512 2513 2514 2012-03-12: Version 3.9.17 2515 2516 Fixed VFP detection through compiler defines. (issue 1996) 2517 2518 Add Code-related fields to postmortem metadata. 2519 2520 Performance and stability improvements on all platforms. 2521 2522 2523 2012-03-09: Version 3.9.16 2524 2525 Added basic interface inference for modules (behind the --harmony flag). 2526 2527 Added Object.is, Number.isFinite, Number.isNaN. 2528 2529 Updated the Unicode tables to Unicode version 6.1.0. 2530 2531 Performance and stability improvements on all platforms. 2532 2533 2534 2012-03-06: Version 3.9.15 2535 2536 Fix the heap profiler crash caused by memory layout changes between 2537 passes. 2538 2539 Fix Error.prototype.toString to throw TypeError. (issue 1980) 2540 2541 Fix double-rounding in strtod for MinGW. (issue 1062) 2542 2543 Fix corrupted snapshot serializaton on ia32. (Chromium issue v8/1985) 2544 2545 Performance and stability improvements on all platforms. 2546 2547 2548 2012-03-01: Version 3.9.14 2549 2550 Performance and stability improvements on all platforms. 2551 2552 2553 2012-02-29: Version 3.9.13 2554 2555 Added code kind check before preparing for OSR. (issue 1900, 115073) 2556 2557 Fixed issue 1802: Pass zone explicitly to zone-allocation on x64 and 2558 ARM. 2559 2560 Ported string construct stub to x64. (issue 849) 2561 2562 Performance and stability improvements on all platforms. 2563 2564 2565 2012-02-28: Version 3.9.12 2566 2567 Fixed the negative lookup stub to handle deleted entries in a 2568 dictionary. (issue 1964) 2569 2570 Added a new API where the host can supply a callback function. The 2571 callback function can resolve the location of a return address on stack 2572 to the location where a return-address rewriting profiler stashed the 2573 original return address. 2574 2575 Fixed Chromium issue http://crbug.com/115646: When compiling for-in 2576 pass correct context value to the increment instruction. 2577 2578 Fixed issue 1853: Update breakpoints set with partial file name after 2579 compile. 2580 2581 2582 2012-02-27: Version 3.9.11 2583 2584 Made 'module' a context-sensitive keyword (V8 issue 1957). 2585 2586 2587 2012-02-24: Version 3.9.10 2588 2589 Fixed V8 issues 1322, 1772 and 1969. 2590 2591 Conformance improvements. 2592 2593 Performance and stability improvements on all platforms. 2594 2595 2596 2012-02-23: Version 3.9.9 2597 2598 Supported fast case for-in in Crankshaft. 2599 2600 Sped up heap snapshot serialization and dominators construction. 2601 2602 Randomized allocation addresses on windows. (Chromium issue 115151) 2603 2604 Fixed compilation with MinGW-w64. (issue 1943) 2605 2606 Fixed incorrect value of assignments to non-extensible properties. 2607 2608 Fixed a crash bug in generated code on ia32. 2609 2610 Performance and stability improvements on all platforms. 2611 2612 2613 2012-02-21: Version 3.9.8 2614 2615 Fixed memory leak and missing #include in StartupDataDecompressor 2616 (issue 1960). 2617 2618 Renamed static methods to avoid shadowing virtual methods and fix Clang 2619 C++11 compile error. 2620 2621 Fixed sequence of element access in array builtins (issue 1790). 2622 2623 Performance and stability improvements on all platforms. 2624 2625 2626 2012-02-16: Version 3.9.7 2627 2628 Fixed V8 issues 1322, 1878, 1942, 1945 and Chromium issue 113924. 2629 2630 Fixed GCC-4.7 warnings. 2631 2632 Added Navier-Stokes benchmark. 2633 2634 Performance and stability improvements on all platforms. 2635 2636 2637 2012-02-14: Version 3.9.6 2638 2639 Fixed template-related linker error. (issue 1936) 2640 2641 Allowed inlining of functions containing object literals. (issue 1322) 2642 2643 Added --call-graph-size option to tickprocessor. (issue 1937) 2644 2645 Heap Snapshot maximum size limit is too low for really big apps. At the 2646 moment the limit is 256MB. (Chromium issue 113015) 2647 2648 Performance and stability improvements on all platforms. 2649 2650 2651 2012-02-09: Version 3.9.5 2652 2653 Removed unused command line flags. 2654 2655 Performance and stability improvements on all platforms. 2656 2657 2658 2012-02-08: Version 3.9.4 2659 2660 Properly initialize element-transitioning array literals on ARM. 2661 (issue 1930) 2662 2663 Bug fixes on all platforms. 2664 2665 2666 2012-02-07: Version 3.9.3 2667 2668 When rethrowing an exception, print the stack trace of its original 2669 site instead of rethrow site (Chromium issue 60240). 2670 2671 Increased size of small stacks from 32k to 64k to avoid hitting limits 2672 in Chromium (Chromium issue 112843). 2673 2674 2675 2012-02-06: Version 3.9.2 2676 2677 Added timestamp to --trace-gc output. (issue 1932) 2678 2679 Heap profiler reports implicit references. 2680 2681 Optionally export metadata with libv8 to enable debuggers to inspect V8 2682 state. 2683 2684 2685 2012-02-02: Version 3.9.1 2686 2687 Fixed memory leak in NativeObjectsExplorer::FindOrAddGroupInfo 2688 (Chromium issue 112315). 2689 2690 Fixed a crash in dev tools (Chromium issue 107996). 2691 2692 Added 'dependencies_traverse': 1 to v8 GYP target. 2693 2694 Performance and stability improvements on all platforms. 2695 2696 2697 2012-02-01: Version 3.9.0 2698 2699 Reduced memory use immediately after starting V8. 2700 2701 Stability fixes and performance improvements on all platforms. 2702 2703 2704 2012-01-26: Version 3.8.9 2705 2706 Flush number string cache on GC (issue 1605). 2707 2708 Provide access to function inferred name with 2709 v8::Function::GetInferredName in V8 public API. 2710 2711 Fix building with Clang (issue 1912). 2712 2713 Reduce the space used by the stack for the profiling thread. 2714 2715 Fix misleading documentation of v8::Locker (issue 542). 2716 2717 Introduce readbinary function in d8 to read binary files. 2718 2719 Performance and stability improvements on all platforms. 2720 2721 2722 2012-01-23: Version 3.8.8 2723 2724 Limited number of loop iterations in Heap::ReserveSpace 2725 (Chromium issue 99027). 2726 2727 Fixed solaris build (VirtualMemory) (issue 1761). 2728 2729 Fixed strict vs. non-strict handling of function proxies in 2730 higher-order array and string methods. 2731 2732 Enabled asynchronous remote debugging with d8 (issue 1691). 2733 2734 Stability and performance improvements on all platforms. 2735 2736 2737 2012-01-19: Version 3.8.7 2738 2739 Ensure that LRandom restores rsi after call to the C function on x64. 2740 (Chromium issue http://crbug.com/110509) 2741 2742 Fixing include issues on *bsd when building with scons. 2743 (issue 1897) 2744 2745 Provide a switch to specify -fno-strict-aliasing 2746 (issue 1887) 2747 2748 Move WIN32 define from standalone.gypi to common.gypi 2749 (issue 1760) 2750 2751 Fix corner-case in heap size estimation. 2752 (issue 1893) 2753 2754 Fix and enable NEW_NON_STRICT_FAST ArgumentsAccess stub on x64. 2755 (issue 1903) 2756 2757 Performance improvements and bug fixes. 2758 2759 2760 2012-01-16: Version 3.8.6 2761 2762 Add primitive WebGL array support to d8. 2763 2764 Improve heap size estimation (issue 1893). 2765 2766 Hash collision DOS workaround extended from string keys 2767 to numeric keys. 2768 2769 Provide an API for iterating through all external strings referenced 2770 from the JS heap. 2771 2772 Adjust position recorded for call expressions. http://crbug.com/109195 2773 2774 Fix GC crash related to instanceof. http://crbug.com/109448 2775 2776 Performance improvements and bug fixes. 2777 2778 2779 2012-01-05: Version 3.8.5 2780 2781 Fix broken test that assumes that no GC can clear the regexp cache (GC 2782 can happen at any time due to Crankshaft). 2783 2784 Fix handling of bogus receivers for Harmony collections. (issue 1884) 2785 2786 Add netbsd support to gyp build. 2787 2788 Determine page size at runtime on posix platforms. 2789 2790 Ensure that store buffer filtering hash sets are cleared after 2791 StoreBuffer::Filter. 2792 2793 Randomize the seed used for string hashing. This helps guard against 2794 CPU-eating DOS attacks against node.js servers. Based on code from 2795 Bert Belder. This version only solves the issue for those that compile 2796 V8 themselves or those that do not use snapshots. A snapshot-based 2797 precompiled V8 will still have predictable string hash codes. 2798 2799 Implement callback when script finishes running in V8 API. 2800 2801 Improve performance of Math.min and Math.max for the case of two 2802 arguments. (issue 1325) 2803 2804 2805 2012-01-02: Version 3.8.4 2806 2807 Performance improvements for large Smi-only arrays. 2808 2809 Fixed InternalArrays construction. (issue 1878) 2810 2811 2812 2011-12-27: Version 3.8.3 2813 2814 Avoid embedding new space objects into code objects in the lithium gap 2815 resolver. (chromium:108296) 2816 2817 Bug fixes and performance optimizations on all platforms. 2818 2819 2820 2011-12-21: Version 3.8.2 2821 2822 Add max optimization flag to v8 gyp build to ensure V8 is always built 2823 fully optimized in Chrome. 2824 2825 MIPS: Bring MIPS to parity with other platforms. 2826 2827 Optimizations and stability improvements on all platforms. 2828 2829 2830 2011-12-19: Version 3.8.1 2831 2832 Fixed GCC 4.7 warnings. Patch from Tobias Burnus. 2833 2834 Stability improvements on all platforms. 2835 2836 2837 2011-12-13: Version 3.8.0 2838 2839 Fixed handling of arrays in DefineOwnProperty. (issue 1756) 2840 2841 Sync parser and preparser on do-while and return statements. 2842 (issue 1856) 2843 2844 Fixed another corner case for DefineOwnProperty on arrays (issue 1756). 2845 2846 Stability and performance improvements on all platforms. 2847 2848 2849 2011-12-01: Version 3.7.12 2850 2851 Increase tick interval for the android platform. 2852 2853 Fix a bug in the register allocator. (chromium:105112) 2854 2855 Fix handling of recompiling code. (chromium:105375, v8:1782) 2856 2857 Start incremental marking on idle notification. (v8:1458) 2858 2859 Build fixes for various platforms. 2860 2861 Various performance improvements. 2862 2863 2864 2011-11-29: Version 3.7.11 2865 2866 Fixed bug when generating padding to ensure space for lazy 2867 deoptimization. 2868 (issue 1846) 2869 2870 Further reduced pause times due to GC. 2871 2872 Stability and performance improvements on all platforms. 2873 2874 2875 2011-11-23: Version 3.7.10 2876 2877 Set maximum length of FixedArray in terms of elements instead an 2878 absolute number of bytes. 2879 (Chromium issue 103103) 2880 2881 Stability and performance improvements on all platforms. 2882 2883 2884 2011-11-21: Version 3.7.9 2885 2886 Removed exit-time destructors. 2887 2888 Stability and performance improvements on all platforms. 2889 2890 2891 2011-11-17: Version 3.7.8 2892 2893 Removed hidden prototype from builtins, i.e., deleting an overridden 2894 function on builtins will not make the original function reappear. 2895 2896 Added NetBSD support for scons build. 2897 2898 Performance improvements on all platforms. 2899 2900 2901 2011-11-14: Version 3.7.7 2902 2903 Fix missing fast property accessors in heap snapshots. 2904 (issue 1818) 2905 2906 2907 2011-11-11: Version 3.7.6 2908 2909 Fixed filtering of store buffer for large object pages. 2910 (issue 1817) 2911 2912 Fixed generated hash function on all platforms. 2913 (issue 1808) 2914 2915 Fixed Heap::Shrink to ensure that it does not free pages that are 2916 still in use. 2917 (Chromium issue 100414) 2918 2919 Stability and performance improvements on all platforms. 2920 2921 2922 2011-11-10: Version 3.7.5 2923 2924 Added initial gyp infrastructure for MIPS. 2925 2926 Implemented performance improvements to the incremental garbage 2927 collector. 2928 2929 Added optimizations and stability improvements on all platforms. 2930 2931 2932 2011-11-07: Version 3.7.4 2933 2934 Proper "libv8.so.3.7.4" SONAME for Linux shared library (issue 1786). 2935 2936 Fix Harmony sets and maps to allow null and undefined as keys 2937 (still hidden behind --harmony flag) (issue 1622). 2938 2939 Implement VirtualMemory on FreeBSD to fix build (issue 1807). 2940 2941 Enable VFP instructions for Android. 2942 2943 Fix error handling in Date.prototype.toISOString (issue 1792). 2944 2945 Bug fixes and performance improvements for all platforms. 2946 2947 Not officially supported but noteworthy: Crankshaft for MIPS :-) 2948 2949 2950 2011-10-28: Version 3.7.3 2951 2952 Slight deoptimization as a workaround for issue with jslint: Issue 2953 1789. 2954 2955 2956 2011-10-27: Version 3.7.2 2957 2958 Fix bug in deoptimization. Known issue with jslint: Issue 1789. 2959 2960 2961 2011-10-26: Version 3.7.1 2962 2963 Achieved 33% speedup in debug-mode tests. 2964 2965 Removed special casing of calls to RegExp test and exec methods with no 2966 argument. Now matches new JSC behaviour. crbug.com/75740. 2967 2968 Return the empty string on cyclic references in toString (ES5 2969 conformance). 2970 2971 Fixed bug triggered by JSBeautifier. crbug.com/100409. 2972 2973 Made Math.random state per-context instead of per-process (issue 864). 2974 2975 Fixed stack traces to skip native functions. 2976 2977 Make snapshots (new contexts) smaller and faster. 2978 2979 Fixed handling of Function.apply for non-array arguments. 2980 2981 Fixed evaluation order in defineProperties to match FireFox. 2982 2983 Fixed handling of non-object receivers for array builtins, 2984 crbug.com/100702. 2985 2986 Multiple fixes to improve compliance with test262. 2987 2988 Fixed compatibility with older Android releases. 2989 2990 Fixed compilation with gcc-4.5.3. 2991 2992 Improved performance of WriteUtf8, issue 1665. 2993 2994 Made native syntax an early error in the preparser. 2995 2996 Fixed issues 793 and 893 relating to Function.prototype.bind. 2997 2998 Improved let, const, Set and Map support and other Harmony features 2999 (behind the --harmony flag). 3000 3001 Changed evaluation order for > and <= to match ES5 instead of ES3. 3002 3003 Bug fixes and performance improvements on all platforms. 3004 3005 3006 2011-10-13: Version 3.7.0 3007 3008 Fixed array handling for Object.defineOwnProperty (ES5 conformance). 3009 3010 Fixed issue 1757 (string slices of external strings). 3011 3012 Fixed issue 1759 (ARM). 3013 3014 Added flag --noclever-optimizations to disable some things that 3015 caused trouble in the past. 3016 3017 Added flag --stress-compaction for testing. 3018 3019 Added flag --harmony to activate all experimental Harmony features. 3020 3021 3022 2011-10-10: Version 3.6.6 3023 3024 Added a GC pause visualization tool. 3025 3026 Added presubmit=no and werror=no flags to Makefile. 3027 3028 ES5/Test262 conformance improvements. 3029 3030 Fixed compilation issues with GCC 4.5.x (issue 1743). 3031 3032 Bug fixes and performance improvements on all platforms. 3033 3034 3035 2011-10-05: Version 3.6.5 3036 3037 New incremental garbage collector. 3038 3039 Removed the hard heap size limit (soft heap size limit is still 3040 700/1400Mbytes by default). 3041 3042 Implemented ES5 generic Array.prototype.toString (Issue 1361). 3043 3044 V8 now allows surrogate pair codes in decodeURIComponent (Issue 1415). 3045 3046 Fixed x64 RegExp start-of-string bug (Issues 1746, 1748). 3047 3048 Fixed propertyIsEnumerable for numeric properties (Issue 1692). 3049 3050 Fixed the MinGW and Windows 2000 builds. 3051 3052 Fixed "Prototype chain is not searched if named property handler does 3053 not set a property" (Issue 1636). 3054 3055 Made the RegExp.prototype object be a RegExp object (Issue 1217). 3056 3057 Disallowed future reserved words as labels in strict mode. 3058 3059 Fixed string split to correctly coerce the separator to a string 3060 (Issue 1711). 3061 3062 API: Added an optional source length field to the Extension 3063 constructor. 3064 3065 API: Added Debug::DisableAgent to match existing Debug::EnableAgent 3066 (Issue 1573). 3067 3068 Added "native" target to Makefile for the benefit of Linux distros. 3069 3070 Fixed: debugger stops stepping outside evaluate (Issue 1639). 3071 3072 More work on ES-Harmony proxies. Still hidden behind a flag. 3073 3074 Bug fixes and performance improvements on all platforms. 3075 3076 3077 2011-09-15: Version 3.6.4 3078 3079 Fixed d8's broken readline history. 3080 3081 Removed the need for code delete events in CPU profiler (Issue 1466). 3082 3083 Fixed debugger stepping next with trycatch recursion (Issue 1639). 3084 3085 Fixing parallel execution in d8 (with -p) and some memory leaks. 3086 3087 Support for precise stepping in functions compiled before debugging was 3088 started (step 1). 3089 3090 3091 2011-09-13: Version 3.6.3 3092 3093 Implemented better support of typed arrays in the d8 shell. 3094 3095 Bug fixes and performance improvements on all platforms. 3096 3097 3098 2011-09-08: Version 3.6.2 3099 3100 Added "dependencies" target to top-level Makefile. 3101 3102 Added ability to turn profiler on/off in d8. 3103 3104 Added "soname_version" parameter to common.gypi, v8.gyp, and Makefile. 3105 3106 Fixed several crash bugs. 3107 3108 3109 2011-09-07: Version 3.6.1 3110 3111 Fixed a bug in abrupt exit from with or catch inside finally. 3112 3113 Fixed possible crash in FixedDoubleArray::Initialize() (Chromium 3114 issue 95113). 3115 3116 Fixed a bug in Page::GetRegionMaskForSpan (Chromium issue 94425). 3117 3118 Fixed a few clang warnings (which -Werror treated as errors). 3119 3120 Performance improvements on all platforms. 3121 3122 3123 2011-09-05: Version 3.6.0 3124 3125 Fixed a bug when optimizing named function expression (issue 1647). 3126 3127 Fixed a bug when optimizing f.call.apply (issue 1650). 3128 3129 Made arguments and caller always be null on native functions 3130 (issues 1548 and 1643). 3131 3132 Fixed issue 1648 (cross-compiling x64 targeting ia32). 3133 3134 Fixed issue 371 (d8 printing of strings containing \0). 3135 3136 Fixed order of evaluation in arguments to parseInt (issue 1649). 3137 3138 Fixed a problem with large heap snapshots in Chrome DevTools 3139 (issue 1658, chromium issue 89268). 3140 3141 Upped default maximum heap size from 512M to 700M. 3142 3143 3144 2011-08-31: Version 3.5.10 3145 3146 Added dependency of v8_base on WinSocket2 Windows library in 3147 the GYP-build. 3148 3149 Various bugfixes. 3150 3151 3152 2011-08-29: Version 3.5.9 3153 3154 Made FromPropertyDescriptor not trigger inherited setters. 3155 3156 Fixed .gyp files to work on the ARM simulator. 3157 3158 Fixed shared library build warnings for MSVS. 3159 3160 3161 2011-08-24: Version 3.5.8 3162 3163 Added V8EXPORT attributes for v8::Array::CheckCast and 3164 v8::Number::CheckCast. 3165 3166 Made a slight API change enabling opting out from null termination 3167 in String::Write*(). 3168 3169 Fixed arm build for gcc-4.6. 3170 3171 3172 2011-08-22: Version 3.5.7 3173 3174 Make scanner handle invalid unicode escapes in identifiers correctly. 3175 3176 Make regexp flag parsing stricter. 3177 3178 Fix several memory leaks. 3179 3180 3181 2011-08-17: Version 3.5.6 3182 3183 Fixed issue that could cause crashes when running with --heap-stats. 3184 3185 Fixed compilation on Linux 2.6.9 and older. 3186 3187 Fixed live-object-list to work with isolates. 3188 3189 Fixed memory leaks in zones and isolates. 3190 3191 Fixed a performance regression for TypedArrays on x64. 3192 3193 Stability improvements on all platforms. 3194 3195 3196 2011-08-15: Version 3.5.5 3197 3198 Fixed bugs involving negative zero and the optimizing compiler. 3199 3200 Fixed optimized version of Function.apply(x, arguments). (issue 1592) 3201 3202 Eliminated uses of deprecated ARM instructions. 3203 3204 Sped up Math.floor by using SSE 4.1 roundsd instruction on ia32. 3205 3206 Removed restriction on the size of disassembled code that is printed. 3207 3208 3209 2011-08-10: Version 3.5.4 3210 3211 Added a preliminary implementation of ES Harmony weak maps. Weak 3212 maps can be enabled by the flag --harmony-weakmaps. 3213 3214 Introduced a toplevel Makefile to support GYP-based building. GYP 3215 can be obtained from http://gyp.googlecode.com. 3216 3217 Fixed a bug in the length property of functions created by 3218 Function.prototype.bind. 3219 3220 Reduced malloc heap allocation on process startup. 3221 3222 Several important code generation bug fixes. 3223 3224 Performance improvements on all platforms. 3225 3226 3227 2011-08-03: Version 3.5.3 3228 3229 MIPS: Port of fix to ClassOf check from ARM. 3230 Patch from Paul Lind <plind44 (a] gmail.com>. 3231 3232 Stopped using mprotect on Cygwin. 3233 Avoided uninitialized member warning on gcc 4.3.4 3234 Both patches by Bert Belder. 3235 3236 Bug fixes and performance improvements on all platforms. 3237 3238 3239 2011-08-01: Version 3.5.2 3240 3241 Performance improvements on all platforms. 3242 3243 3244 2011-07-28: Version 3.5.1 3245 3246 Fixed setting the readonly flag on the prototype property using the 3247 API call FunctionTemplate::SetPrototypeAttributes (issue 1539). 3248 3249 Changed the tools/test.py script to use d8 instead of shell for 3250 testing. 3251 3252 Fixed crash in ToBooleanStub when GC happens during invocation. 3253 3254 Enabled automatic unboxing of double arrays. 3255 3256 Performance improvements on all platforms. 3257 3258 3259 2011-07-25: Version 3.5.0 3260 3261 Implemented Object.prototype.{hasOwnProperty, propertyIsEnumerable} for 3262 proxies. 3263 3264 Removed logging to memory support. 3265 3266 Bugfixes and performance work. 3267 3268 3269 2011-07-20: Version 3.4.14 3270 3271 Fix the debugger for strict-mode functions. (Chromium issue 89236) 3272 3273 Add GetPropertyAttribute method for Object in the API. (Patch by 3274 Peter Varga) 3275 3276 Fix -Wunused-but-set-variable for gcc-4.6 on x64. (Issue 1291) 3277 3278 3279 2011-07-18: Version 3.4.13 3280 3281 Improved debugger support to allow inspection of optimized frames (issue 3282 1140). 3283 3284 Fixed a bug in prototype transitions cache clearing introduced by r8165. 3285 3286 Fixed shortcutting bug in HInferRepresentation. Patch by Andy Wingo. 3287 3288 Fixed a memory leak in sample/shell.cc (dispose semaphores). 3289 3290 Simplified HClampToUint8. Patch by Andy Wingo. 3291 3292 Exposed APIs for detecting boxed primitives, native errors. Patch by 3293 Luke Zarko. 3294 3295 Added map check for COW elements to crankshaft array handling code 3296 (issue 1560). 3297 3298 Sample shell and (a light version of) D8 links against a shared library 3299 now. 3300 3301 Fixed bug in array filter and reduce functions (issue 1559). 3302 3303 Avoid TLS load in AstNode constructor. 3304 3305 Introduced a random entropy source which can optionally be provided at 3306 initialization. (Chromium issue 89462). 3307 3308 3309 2011-07-13: Version 3.4.12 3310 3311 Added --prof profiling option to d8 shell. 3312 3313 Fixed a bug where reading a directory in d8 shell hangs (issue 1533). 3314 3315 Fixed a potential assertion failure in const declarations. 3316 3317 Fixed an assertion failure in descriptor arrays (issue 1526). 3318 3319 Enabled fast thread-local storage by default on supported platforms. 3320 3321 Improved reporting of source position for global variable loads 3322 (issue 1527). 3323 3324 3325 2011-07-11: Version 3.4.11 3326 3327 Fixed MinGW32 build. 3328 3329 Fixed a GC bug with RegExp code flushing. 3330 3331 Implemented Object.defineProperty for proxies. 3332 3333 Fixed a bug in for/in iteration of arguments objects (issue 1531). 3334 3335 Added debugger support for inspecting optimized frames (issue 1140). 3336 3337 Allowed JSObject::PreventExtensions to work for arguments objects. 3338 3339 Bugfixes and performance work. 3340 3341 3342 2011-07-06: Version 3.4.10 3343 3344 Fixed debugger not breaking on certain "if" statements (issue 1523). 3345 3346 Fixed assertion failure in runtime profiler when running on IA32 3347 without snapshot (issue 1522). 3348 3349 Fixed ABI for API calls on IA32 (for clang compatibility). 3350 3351 Introduced code flushing of RegExp code to free memory used by 3352 RegExps sooner. 3353 3354 Fixed linux-tick-processor built wrong version of v8 (issue 1532). 3355 3356 Fixed assertion failure in v8::TryCache::StackTrace (issue 1529). 3357 3358 Performance improvements on all platforms. 3359 3360 3361 2011-07-04: Version 3.4.9 3362 3363 Added support for debugger inspection of locals in optimized frames 3364 (issue 1140). 3365 3366 Fixed SConstruct to pass correct defines to samples/preparser when 3367 building with library=shared. 3368 3369 Made date parser handle ES5 Date Time Strings correctly (issue 1498). 3370 3371 Fixed a bug in Object.defineProperty on the arguments object. 3372 3373 Performance improvements on all platforms. 3374 3375 3376 2011-06-29: Version 3.4.8 3377 3378 Ensure 16-byte stack alignment on Solaris (issue 1505). 3379 3380 Fix "illegal access" when calling parseInt with a radix 3381 that is not a smi. (issue 1246). 3382 3383 3384 2011-06-27: Version 3.4.7 3385 3386 Fixed 64-bit build on FreeBSD. 3387 3388 Added API to set the property attributes for the prototype 3389 property on functions created from FunctionTemplates. 3390 3391 Bugfixes and performance work. 3392 3393 3394 2011-06-22: Version 3.4.6 3395 3396 Lowered limit on code space for systems with low memory supply. 3397 3398 Allowed compiling v8_shell with the 'host' toolset (issue 82437). 3399 3400 Extended setBreakpoint API to accept partial script name (issue 1418). 3401 3402 Made multi-line comments not count when deciding whether the '-->' 3403 comment starter is first on a line. This matches Safari. 3404 3405 Made handling of non-array recievers in Array length setter correct 3406 (issue 1491). 3407 3408 Added ability to heap profiler to iterate over snapshot's node 3409 (issue 1481). 3410 3411 3412 2011-06-20: Version 3.4.5 3413 3414 Fixed issues 794, 1097, 1215(partial), 1417, 1435, 1472, 1473, 3415 1476, and 1477. 3416 3417 Improved code generation for !0 and !1. 3418 3419 Reduced memory usage for regular expressions with nested qualifiers. 3420 (issue 1472) 3421 3422 Fixed V8 to count line terminators in multi-line comments. 3423 (Chromium issue 86431) 3424 3425 Fixed disassembler=on option for release-mode builds. (issue 1473) 3426 3427 Performance improvements on all platforms. 3428 3429 3430 2011-06-15: Version 3.4.4 3431 3432 Added snapshot compression support and --stress-opt flag to d8. 3433 3434 Improved performance of try/catch. 3435 3436 Several GYP-related changes: Added support for building Xcode project 3437 files. Make the ARM simulator build with GYP again. Generate Makefiles 3438 for all architectures on Linux. 3439 3440 Fixed Array.prototype.{reduce,reduceRight} to pass undefined as the 3441 receiver for strict mode callbacks. (issue 1436) 3442 3443 Fixed a bug where an array load was incorrectly hoisted by GVN. 3444 3445 Handle 'undefined' correctly when === has been specialized for doubles. 3446 (issue 1434) 3447 3448 Corrected the limit of local variables in an optimized function from 64 3449 to 63. 3450 3451 Correctly set ReadOnly flag on indexed properties when using the API Set 3452 method. (issue 1470) 3453 3454 Give the correct error message when Object.isExtensible is called on a 3455 non-object. (issue 1452) 3456 3457 Added GetOwnPropertyNames method for Object in the API. Patch by Peter 3458 Varga. 3459 3460 Do not redefine properties unneccesarily in seal and freeze. (issue 3461 1447) 3462 3463 IsExecutionTerminating has an Isolate parameter now. 3464 3465 Distinguish keyed loads with a symbol key from fast elements loads, 3466 avoiding some useless deoptimizations. (issue 1471) 3467 3468 3469 2011-06-08: Version 3.4.3 3470 3471 Clear the global thread table when an isolate is disposed 3472 (issue 1433). 3473 3474 Converted time zone name to UTF8 on Windows (issue 1290). 3475 3476 Limited the number of arguments in a function call to 32766 3477 (issue 1413). 3478 3479 Compress sources of JS libraries in addition to the snapshot. 3480 3481 Fixed a bug in Lithium environment iteration. 3482 3483 Performance improvements on all platforms. 3484 3485 3486 2011-06-06: Version 3.4.2 3487 3488 More work on ES-Harmony proxies. Still hidden behind a flag. 3489 3490 Fixed some crash bugs and improved performance. 3491 3492 Fixed building with gdb debugging support. 3493 3494 Do not install SIGPROF handler until it is needed. 3495 3496 Added DateTimeFormat to i18n API. 3497 3498 Fixed compilation on OpenBSD. 3499 3500 Take the ulimit into account when sizing the heap. OpenBSD users 3501 may still have to increase the default ulimit to run heavy pages in 3502 the browser. 3503 3504 3505 2011-06-01: Version 3.4.1 3506 3507 Fixed JSON stringify issue with arrays. 3508 3509 Changed calls to JS builtins to be passed undefined when called with 3510 implicit receiver. 3511 3512 Implemented the set trap for Harmony proxies. Proxies still need to 3513 be enabled with the --harmony-proxies flag. 3514 3515 3516 2011-05-30: Version 3.4.0 3517 3518 Changed calls to undefined property setters to not throw (issue 1355). 3519 3520 Made RegExp objects not callable. 3521 3522 Fixed issues on special case large JSON strings in new json parser 3523 (issues http://crbug.com/83877 and http://crbug.com/84186). 3524 3525 Performance improvements on all platforms. 3526 3527 3528 2011-05-25: Version 3.3.10 3529 3530 Fixed calls of strict mode function with an implicit receiver. 3531 3532 Fixed fast handling of arrays to properly deal with changes to the 3533 Object prototype (issue 1403). 3534 3535 Changed strict mode poison pill to be the same type error function 3536 (issue 1387). 3537 3538 Fixed a debug crash in arguments object handling (issue 1227). 3539 3540 Fixed a bug in deoptimization on x64 (issue 1404). 3541 3542 Performance improvements and bug fixes on all platforms. 3543 3544 3545 2011-05-23: Version 3.3.9 3546 3547 Added DateTimeFormat class to experimental i18n API. 3548 3549 Extended preparser to give early errors for some strict mode 3550 restrictions. 3551 3552 Removed legacy execScript function from V8. 3553 3554 Extended isolate API with the ability to add embedder-specific 3555 data to an isolate. 3556 3557 Added basic support for polymorphic loads from JS and external 3558 arrays. 3559 3560 Fixed bug in handling of switch statements in the optimizing 3561 compiler. 3562 3563 3564 2011-05-18: Version 3.3.8 3565 3566 Added MarkIndependent to the persistent handle API. Independent 3567 handles are independent of all other persistent handles and can be 3568 garbage collected more frequently. 3569 3570 Implemented the get trap for Harmony proxies. Proxies are enabled 3571 with the --harmony-proxies flag. 3572 3573 Performance improvements and bug fixes on all platforms. 3574 3575 3576 2011-05-16: Version 3.3.7 3577 3578 Updated MIPS infrastructure files. 3579 3580 Performance improvements and bug fixes on all platforms. 3581 3582 3583 2011-05-11: Version 3.3.6 3584 3585 Updated MIPS infrastructure files. 3586 3587 Added method IsCallable for Object to the API. 3588 Patch by Peter Varga. 3589 3590 3591 2011-05-09: Version 3.3.5 3592 3593 Fixed build on FreeBSD. Patch by Akinori MUSHA. 3594 3595 Added check that receiver is JSObject on API calls. 3596 3597 Implemented CallAsConstructor method for Object in the API (Issue 1348). 3598 Patch by Peter Varga. 3599 3600 Added CallAsFunction method to the Object class in the API (Issue 1336). 3601 Patch by Peter Varga. 3602 3603 Added per-isolate locking and unlocking. 3604 3605 Fixed bug in x64 >>> operator (Issue 1359). 3606 3607 3608 2011-05-04: Version 3.3.4 3609 3610 Implemented API to disallow code generation from strings for a context 3611 (issue 1258). 3612 3613 Fixed bug with whitespaces in parseInt (issue 955). 3614 3615 Fixed bug with == comparison of Date objects (issue 1356). 3616 3617 Added GYP variables for ARM code generation: 3618 v8_can_use_vfp_instructions, v8_can_use_unaligned_accesses 3619 and v8_use_arm_eabi_hardfloat. 3620 3621 3622 2011-05-02: Version 3.3.3 3623 3624 Added support for generating Visual Studio solution and project files 3625 using GYP. 3626 3627 Implemented support for ARM EABI calling convention variation where 3628 floating-point arguments are passed in registers (hardfloat). 3629 3630 Added Object::HasOwnProperty() to the API. 3631 3632 Added support for compressing startup data to reduce binary size. This 3633 includes build time support and an API for the embedder to decompress 3634 the startup data before initializing V8. 3635 3636 Reduced the profiling hooks overhead from >400% to 25% when using 3637 ll_prof. 3638 3639 Performance improvements and bug fixes on all platforms. 3640 3641 3642 2011-04-27: Version 3.3.2 3643 3644 Fixed crash bug on ARM with no VFP3 hardware. 3645 3646 Fixed compilation of V8 without debugger support. 3647 3648 Improved performance on JSLint. 3649 3650 Added support Float64 WebGL arrays. 3651 3652 Fixed crash bug in regexp replace. 3653 3654 3655 2011-04-20: Version 3.3.1 3656 3657 Reduced V8 binary size by removing virtual functions from hydrogen. 3658 3659 Fixed crash bug on x64. 3660 3661 Performance improvements on ARM and IA32. 3662 3663 3664 2011-04-18: Version 3.3.0 3665 3666 Fixed bug in floating point rounding in Crankshaft on ARM 3667 (issue 958) 3668 3669 Fixed a number of issues with running without VFPv3 support on ARM 3670 (issue 1315) 3671 3672 Introduced v8Locale.Collator, a partial implementation of Collator 3673 per last ECMAScript meeting + mailing list. 3674 3675 Minor performance improvements and bug fixes. 3676 3677 3678 2011-04-13: Version 3.2.10 3679 3680 Fixed bug in external float arrays on ARM (issue 1323). 3681 3682 Minor performance improvements and bug fixes. 3683 3684 3685 2011-04-11: Version 3.2.9 3686 3687 Removed support for ABI prior to EABI on ARM. 3688 3689 Fixed multiple crash bugs. 3690 3691 Added GCMole to the repository, a simple static analysis tool that 3692 searches for GC-unsafe evaluation order dependent callsites. 3693 3694 Made preparser API be exported in shared libraries. 3695 3696 Fixed multiple issues in EcmaScript 5 strict mode implementation. 3697 3698 Fixed mutable __proto__ property if object is not extensible 3699 (Issue 1309). 3700 3701 Fixed auto suspension of the sampler thread. 3702 3703 3704 2011-04-06: Version 3.2.8 3705 3706 Exposed WebGL typed array constructors in the shell sample. 3707 3708 Performance improvements on all platforms. 3709 3710 3711 2011-04-04: Version 3.2.7 3712 3713 Disabled the original 'classic' V8 code generator. Crankshaft is 3714 now the default on all platforms. 3715 3716 Changed the heap profiler to use more descriptive names. 3717 3718 Performance and stability improvements to isolates on all platforms. 3719 3720 3721 2011-03-30: Version 3.2.6 3722 3723 Fixed xcode build warning in shell.cc (out of order initialization). 3724 3725 Fixed null-pointer dereference in the compiler when running without 3726 SSE3 support (Chromium issue 77654). 3727 3728 Fixed x64 compilation error due to some dead code. (Issue 1286) 3729 3730 Introduced scons target to build the preparser stand-alone example. 3731 3732 Made FreeBSD build and pass all tests. 3733 3734 3735 2011-03-28: Version 3.2.5 3736 3737 Fixed build with Irregexp interpreter (issue 1266). 3738 3739 Added Crankshaft support for external arrays. 3740 3741 Fixed two potential crash bugs. 3742 3743 3744 2011-03-23: Version 3.2.4 3745 3746 Added isolates which allows several V8 instances in the same process. 3747 This is controlled through the new Isolate class in the API. 3748 3749 Implemented more of EcmaScript 5 strict mode. 3750 3751 Reduced the time it takes to make detailed heap snapshot. 3752 3753 Added a number of commands to the ARM simulator and enhanced the ARM 3754 disassembler. 3755 3756 3757 2011-03-17: Version 3.2.3 3758 3759 Fixed a number of crash bugs. 3760 3761 Fixed Array::New(length) to return an array with a length (issue 1256). 3762 3763 Fixed FreeBSD build. 3764 3765 Changed __defineGetter__ to not throw (matching the behavior of Safari). 3766 3767 Implemented more of EcmaScript 5 strict mode. 3768 3769 Improved Crankshaft performance on all platforms. 3770 3771 3772 2011-03-14: Version 3.2.2 3773 3774 Fixed a number of crash and correctness bugs. 3775 3776 Improved Crankshaft performance on all platforms. 3777 3778 Fixed Crankshaft on Solaris/Illumos. 3779 3780 3781 2011-03-10: Version 3.2.1 3782 3783 Fixed a number of crash bugs. 3784 3785 Improved Crankshaft for x64 and ARM. 3786 3787 Implemented more of EcmaScript 5 strict mode. 3788 3789 3790 2011-03-07: Version 3.2.0 3791 3792 Fixed a number of crash bugs. 3793 3794 Turned on Crankshaft by default on x64 and ARM. 3795 3796 Improved Crankshaft for x64 and ARM. 3797 3798 Implemented more of EcmaScript 5 strict mode. 3799 3800 3801 2011-03-02: Version 3.1.8 3802 3803 Fixed a number of crash bugs. 3804 3805 Improved Crankshaft for x64 and ARM. 3806 3807 Implemented more of EcmaScript 5 strict mode. 3808 3809 Fixed issue with unaligned reads and writes on ARM. 3810 3811 Improved heap profiler support. 3812 3813 3814 2011-02-28: Version 3.1.7 3815 3816 Fixed a number of crash bugs. 3817 3818 Improved Crankshaft for x64 and ARM. 3819 3820 Fixed implementation of indexOf/lastIndexOf for sparse 3821 arrays (http://crbug.com/73940). 3822 3823 Fixed bug in map space compaction (http://crbug.com/59688). 3824 3825 Added support for direct getter accessors calls on ARM. 3826 3827 3828 2011-02-24: Version 3.1.6 3829 3830 Fixed a number of crash bugs. 3831 3832 Added support for Cygwin (issue 64). 3833 3834 Improved Crankshaft for x64 and ARM. 3835 3836 Added Crankshaft support for stores to pixel arrays. 3837 3838 Fixed issue in CPU profiler with Crankshaft. 3839 3840 3841 2011-02-16: Version 3.1.5 3842 3843 Change RegExp parsing to disallow /(*)/. 3844 3845 Added GDB JIT support for ARM. 3846 3847 Fixed several crash bugs. 3848 3849 Performance improvements on the IA32 platform. 3850 3851 3852 2011-02-14: Version 3.1.4 3853 3854 Fixed incorrect compare of prototypes of the global object (issue 3855 1082). 3856 3857 Fixed a bug in optimizing calls to global functions (issue 1106). 3858 3859 Made optimized Function.prototype.apply safe for non-JSObject first 3860 arguments (issue 1128). 3861 3862 Fixed an error related to element accessors on Object.prototype and 3863 parser errors (issue 1130). 3864 3865 Fixed a bug in sorting an array with large array indices (issue 1131). 3866 3867 Properly treat exceptions thrown while compiling (issue 1132). 3868 3869 Fixed bug in register requirements for function.apply (issue 1133). 3870 3871 Fixed a representation change bug in the Hydrogen graph construction 3872 (issue 1134). 3873 3874 Fixed the semantics of delete on parameters (issue 1136). 3875 3876 Fixed a optimizer bug related to moving instructions with side effects 3877 (issue 1138). 3878 3879 Added support for the global object in Object.keys (issue 1150). 3880 3881 Fixed incorrect value for Math.LOG10E 3882 (issue http://code.google.com/p/chromium/issues/detail?id=72555) 3883 3884 Performance improvements on the IA32 platform. 3885 3886 Implement assignment to undefined reference in ES5 Strict Mode. 3887 3888 3889 2011-02-09: Version 3.1.3 3890 3891 Fixed a bug triggered by functions with huge numbers of declared 3892 arguments. 3893 3894 Fixed zap value aliasing a real object - debug mode only (issue 866). 3895 3896 Fixed issue where Array.prototype.__proto__ had been set to null 3897 (issue 1121). 3898 3899 Fixed stability bugs in Crankshaft for x86. 3900 3901 3902 2011-02-07: Version 3.1.2 3903 3904 Added better security checks when accessing properties via 3905 Object.getOwnPropertyDescriptor. 3906 3907 Fixed bug in Object.defineProperty and related access bugs (issues 3908 992, 1083 and 1092). 3909 3910 Added LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to ease 3911 copyright notice generation for embedders. 3912 3913 3914 2011-02-02: Version 3.1.1 3915 3916 Perform security checks before fetching the value in 3917 Object.getOwnPropertyDescriptor. 3918 3919 Fixed a bug in Array.prototype.splice triggered by passing no 3920 arguments. 3921 3922 Fixed bugs in -0 in arithmetic and in Math.pow. 3923 3924 Fixed bugs in the register allocator and in switching from optimized 3925 to unoptimized code. 3926 3927 3928 2011-01-31: Version 3.1.0 3929 3930 Performance improvements on all platforms. 3931 3932 3933 2011-01-28: Version 3.0.12 3934 3935 Added support for strict mode parameter and object property 3936 validation. 3937 3938 Fixed a couple of crash bugs. 3939 3940 3941 2011-01-25: Version 3.0.11 3942 3943 Fixed a bug in deletion of lookup slots that could cause global 3944 variables to be accidentally deleted (http://crbug.com/70066). 3945 3946 Added support for strict mode octal literal verification. 3947 3948 Fixed a couple of crash bugs (issues 1070 and 1071). 3949 3950 3951 2011-01-24: Version 3.0.10 3952 3953 Fixed External::Wrap for 64-bit addresses (issue 1037). 3954 3955 Fixed incorrect .arguments variable proxy handling in the full 3956 code generator (issue 1060). 3957 3958 Introduced partial strict mode support. 3959 3960 Changed formatting of recursive error messages to match Firefox and 3961 Safari (issue http://crbug.com/70334). 3962 3963 Fixed incorrect rounding for float-to-integer conversions for external 3964 array types, which implement the Typed Array spec 3965 (issue http://crbug.com/50972). 3966 3967 Performance improvements on the IA32 platform. 3968 3969 3970 2011-01-19: Version 3.0.9 3971 3972 Added basic GDB JIT Interface integration. 3973 3974 Make invalid break/continue statements a syntax error instead of a 3975 runtime error. 3976 3977 3978 2011-01-17: Version 3.0.8 3979 3980 Exposed heap size limit to the heap statistics gathered by 3981 the GetHeapStatistics API. 3982 3983 Wrapped external pointers more carefully (issue 1037). 3984 3985 Hardened the implementation of error objects to avoid setters 3986 intercepting the properties set then throwing an error. 3987 3988 Avoided trashing the FPSCR when calculating Math.floor on ARM. 3989 3990 Performance improvements on the IA32 platform. 3991 3992 3993 2011-01-10: Version 3.0.7 3994 3995 Stopped calling inherited setters when creating object literals 3996 (issue 1015). 3997 3998 Changed interpretation of malformed \c? escapes in RegExp to match 3999 JSC. 4000 4001 Enhanced the command-line debugger interface and fixed some minor 4002 bugs in the debugger. 4003 4004 Performance improvements on the IA32 platform. 4005 4006 4007 2011-01-05: Version 3.0.6 4008 4009 Allowed getters and setters on JSArray elements (issue 900). 4010 4011 Stopped JSON objects from hitting inherited setters (part of 4012 issue 1015). 4013 4014 Allowed numbers and strings as names of getters/setters in object 4015 initializer (issue 820). 4016 4017 Added use_system_v8 option to gyp (off by default), to make it easier 4018 for Linux distributions to ship with system-provided V8 library. 4019 4020 Exported external array data accessors (issue 1016). 4021 4022 Added labelled thread names to help with debugging (on Linux). 4023 4024 4025 2011-01-03: Version 3.0.5 4026 4027 Fixed a couple of cast errors for gcc-3.4.3. 4028 4029 Performance improvements in GC and IA32 code generator. 4030 4031 4032 2010-12-21: Version 3.0.4 4033 4034 Added Date::ResetCache() to the API so that the cached values in the 4035 Date object can be reset to allow live DST / timezone changes. 4036 4037 Extended existing support for printing (while debugging) the contents 4038 of objects. Added support for printing objects from release builds. 4039 4040 Fixed V8 issues 989, 1006, and 1007. 4041 4042 4043 2010-12-17: Version 3.0.3 4044 4045 Reapplied all changes for version 3.0.1. 4046 4047 Improved debugger protocol for remote debugging. 4048 4049 Added experimental support for using gyp to generate build files 4050 for V8. 4051 4052 Fixed implementation of String::Write in the API (issue 975). 4053 4054 4055 2010-12-15: Version 3.0.2 4056 4057 Revert version 3.0.1 and patch 3.0.1.1. 4058 4059 4060 2010-12-13: Version 3.0.1 4061 4062 Added support for an experimental internationalization API as an 4063 extension. This extension is disabled by default but can be enabled 4064 when building V8. The ECMAScript internationalization strawman is 4065 at http://wiki.ecmascript.org/doku.php?id=strawman:i18n_api. 4066 4067 Made RegExp character class parsing stricter. This mirrors a change 4068 to RegExp parsing in WebKit. 4069 4070 Fixed a bug in Object.defineProperty when used to change attributes 4071 of an existing property. It incorrectly set the property value to 4072 undefined (issue 965). 4073 4074 Fixed several different compilation failures on various platforms 4075 caused by the 3.0.0 release. 4076 4077 Optimized Math.pow so it can work on unboxed doubles. 4078 4079 Sped up quoting of JSON strings by removing one traversal of the 4080 string. 4081 4082 4083 2010-12-07: Version 3.0.0 4084 4085 Improved performance by (partially) addressing issue 957 on 4086 IA-32. Still needs more work for the other architectures. 4087 4088 4089 2010-11-29: Version 2.5.9 4090 4091 Fixed crashes during GC caused by partially initialize heap 4092 objects. 4093 4094 Fixed bug in process sample that caused memory leaks. 4095 4096 Improved performance on ARM by implementing missing stubs and 4097 inlining. 4098 4099 Improved heap profiler support. 4100 4101 Added separate seeding on Windows of the random number generator 4102 used internally by the compiler (issue 936). 4103 4104 Exposed API for getting the name of the function used to construct 4105 an object. 4106 4107 Fixed date parser to handle one and two digit millisecond 4108 values (issue 944). 4109 4110 Fixed number parsing to disallow space between sign and 4111 digits (issue 946). 4112 4113 4114 2010-11-23: Version 2.5.8 4115 4116 Removed dependency on Gay's dtoa. 4117 4118 Improved heap profiler precision and speed. 4119 4120 Reduced overhead of callback invocations on ARM. 4121 4122 4123 2010-11-18: Version 2.5.7 4124 4125 Fixed obscure evaluation order bug (issue 931). 4126 4127 Split the random number state between JavaScript and the private API. 4128 4129 Fixed performance bug causing GCs when generating stack traces on 4130 code from very large scripts. 4131 4132 Fixed bug in parser that allowed (foo):42 as a labelled statement 4133 (issue 918). 4134 4135 Provide more accurate results about used heap size via 4136 GetHeapStatistics. 4137 4138 Allow build-time customization of the max semispace size. 4139 4140 Made String.prototype.split honor limit when separator is empty 4141 (issue 929). 4142 4143 Added missing failure check after expecting an identifier in 4144 preparser (Chromium issue 62639). 4145 4146 4147 2010-11-10: Version 2.5.6 4148 4149 Added support for VFP rounding modes to the ARM simulator. 4150 4151 Fixed multiplication overflow bug (issue 927). 4152 4153 Added a limit for the amount of executable memory (issue 925). 4154 4155 4156 2010-11-08: Version 2.5.5 4157 4158 Added more aggressive GC of external objects in near out-of-memory 4159 situations. 4160 4161 Fixed a bug that gave the incorrect result for String.split called 4162 on the empty string (issue 924). 4163 4164 4165 2010-11-03: Version 2.5.4 4166 4167 Improved V8 VFPv3 runtime detection to address issue 914. 4168 4169 4170 2010-11-01: Version 2.5.3 4171 4172 Fixed a bug that prevents constants from overwriting function values 4173 in object literals (issue 907). 4174 4175 Fixed a bug with reporting of impossible nested calls of DOM functions 4176 (issue http://crbug.com/60753). 4177 4178 4179 2010-10-27: Version 2.5.2 4180 4181 Improved sampler resolution on Linux. 4182 4183 Allowed forcing the use of a simulator from the build script 4184 independently of the host architecture. 4185 4186 Fixed FreeBSD port (issue 912). 4187 4188 Made windows-tick-processor respect D8_PATH. 4189 4190 Implemented --noinline-new flag fully on IA32, X64 and ARM platforms. 4191 4192 4193 2010-10-20: Version 2.5.1 4194 4195 Fixed bug causing spurious out of memory exceptions 4196 (issue http://crbug.com/54580). 4197 4198 Fixed compilation error on Solaris platform (issue 901). 4199 4200 Fixed error in strtod (string to floating point number conversion) 4201 due to glibc's use of 80-bit floats in the FPU on 32-bit linux. 4202 4203 Adjusted randomized allocations of executable memory to have 64k 4204 granularity (issue http://crbug.com/56036). 4205 4206 Supported profiling using kernel perf_events on linux. Added ll_prof 4207 script to tools and --ll-prof flag to V8. 4208 4209 4210 2010-10-18: Version 2.5.0 4211 4212 Fixed bug in cache handling of lastIndex on global regexps 4213 (issue http://crbug.com/58740). 4214 4215 Added USE_SIMULATOR macro that explicitly indicates that we wish to use 4216 the simulator as the execution engine (by Mark Lam <mark.lam (a] palm.com> 4217 from Hewlett-Packard Development Company, LP). 4218 4219 Fixed compilation error on ARM with gcc 4.4 (issue 894). 4220 4221 4222 2010-10-13: Version 2.4.9 4223 4224 Fixed a bug in the handling of conditional expressions in test 4225 contexts in compiler for top-level code. 4226 4227 Added "//@ sourceURL" information to the StackTrace API. 4228 4229 Exposed RegExp construction through the API. 4230 4231 4232 2010-10-04: Version 2.4.8 4233 4234 Fixed a bug in ResumeProfilerEx causing it to not always write out the 4235 whole snapshot (issue 868). 4236 4237 Performance improvements on all platforms. 4238 4239 4240 2010-09-30: Version 2.4.7 4241 4242 Changed the command-line flag --max-new-space-size to be in kB and the 4243 flag --max-old-space-size to be in MB (previously they were in bytes). 4244 4245 Added Debug::CancelDebugBreak to the debugger API. 4246 4247 Fixed a bug in getters for negative numeric property names 4248 (https://bugs.webkit.org/show_bug.cgi?id=46689). 4249 4250 Performance improvements on all platforms. 4251 4252 4253 2010-09-27: Version 2.4.6 4254 4255 Fixed assertion failure related to copy-on-write arrays (issue 876). 4256 4257 Fixed build failure of 64-bit V8 on Windows. 4258 4259 Fixed a bug in RegExp (issue http://crbug.com/52801). 4260 4261 Improved the profiler's coverage to cover more functions (issue 858). 4262 4263 Fixed error in shift operators on 64-bit V8 4264 (issue http://crbug.com/54521). 4265 4266 4267 2010-09-22: Version 2.4.5 4268 4269 Changed the RegExp benchmark to exercise the regexp engine on different 4270 inputs by scrambling the input strings. 4271 4272 Fixed a bug in keyed loads on strings. 4273 4274 Fixed a bug with loading global function prototypes. 4275 4276 Fixed a bug with profiling RegExp calls (issue http://crbug.com/55999). 4277 4278 Performance improvements on all platforms. 4279 4280 4281 2010-09-15: Version 2.4.4 4282 4283 Fixed bug with hangs on very large sparse arrays. 4284 4285 Now tries harder to free up memory when running out of space. 4286 4287 Added heap snapshots to JSON format to API. 4288 4289 Recalibrated benchmarks. 4290 4291 4292 2010-09-13: Version 2.4.3 4293 4294 Made Date.parse properly handle TZ offsets (issue 857). 4295 4296 Performance improvements on all platforms. 4297 4298 4299 2010-09-08: Version 2.4.2 4300 4301 Fixed GC crash bug. 4302 4303 Fixed stack corruption bug. 4304 4305 Fixed compilation for newer C++ compilers that found Operand(0) 4306 ambiguous. 4307 4308 4309 2010-09-06: Version 2.4.1 4310 4311 Added the ability for an embedding application to receive a callback 4312 when V8 allocates (V8::AddMemoryAllocationCallback) or deallocates 4313 (V8::RemoveMemoryAllocationCallback) from the OS. 4314 4315 Fixed several JSON bugs (including issue 855). 4316 4317 Fixed memory overrun crash bug triggered during V8's tick-based 4318 profiling. 4319 4320 Performance improvements on all platforms. 4321 4322 4323 2010-09-01: Version 2.4.0 4324 4325 Fixed bug in Object.freeze and Object.seal when Array.prototype or 4326 Object.prototype are changed (issue 842). 4327 4328 Updated Array.splice to follow Safari and Firefox when called 4329 with zero arguments. 4330 4331 Fixed a missing live register when breaking at keyed loads on ARM. 4332 4333 Performance improvements on all platforms. 4334 4335 4336 2010-08-25: Version 2.3.11 4337 4338 Fixed bug in RegExp related to copy-on-write arrays. 4339 4340 Refactored tools/test.py script, including the introduction of 4341 VARIANT_FLAGS that allows specification of sets of flags with which 4342 all tests should be run. 4343 4344 Fixed a bug in the handling of debug breaks in CallIC. 4345 4346 Performance improvements on all platforms. 4347 4348 4349 2010-08-23: Version 2.3.10 4350 4351 Fixed bug in bitops on ARM. 4352 4353 Build fixes for unusual compilers. 4354 4355 Track high water mark for RWX memory. 4356 4357 Performance improvements on all platforms. 4358 4359 4360 2010-08-18: Version 2.3.9 4361 4362 Fixed compilation for ARMv4 on OpenBSD/FreeBSD. 4363 4364 Removed specialized handling of GCC 4.4 (issue 830). 4365 4366 Fixed DST cache to take into account the suspension of DST in 4367 Egypt during the 2010 Ramadan (issue http://crbug.com/51855). 4368 4369 Performance improvements on all platforms. 4370 4371 4372 2010-08-16: Version 2.3.8 4373 4374 Fixed build with strict aliasing on GCC 4.4 (issue 463). 4375 4376 Fixed issue with incorrect handling of custom valueOf methods on 4377 string wrappers (issue 760). 4378 4379 Fixed compilation for ARMv4 (issue 590). 4380 4381 Improved performance. 4382 4383 4384 2010-08-11: Version 2.3.7 4385 4386 Reduced size of heap snapshots produced by heap profiler (issue 783). 4387 4388 Introduced v8::Value::IsRegExp method. 4389 4390 Fixed CPU profiler crash in start / stop sequence when non-existent 4391 name is passed (issue http://crbug.com/51594). 4392 4393 Introduced new indexed property query callbacks API (issue 816). This 4394 API is guarded by USE_NEW_QUERY_CALLBACK define and is disabled 4395 by default. 4396 4397 Removed support for object literal get/set with number/string 4398 property name. 4399 4400 Fixed handling of JSObject::elements in CalculateNetworkSize 4401 (issue 822). 4402 4403 Allowed compiling with strict aliasing enabled on GCC 4.4 (issue 463). 4404 4405 4406 2010-08-09: Version 2.3.6 4407 4408 RegExp literals create a new object every time they are evaluated 4409 (issue 704). 4410 4411 Object.seal and Object.freeze return the modified object (issue 809). 4412 4413 Fixed building using GCC 4.4.4. 4414 4415 4416 2010-08-04: Version 2.3.5 4417 4418 Added support for ES5 property names. Object initialisers and 4419 dot-notation property access now allows keywords. Also allowed 4420 non-identifiers after "get" or "set" in an object initialiser. 4421 4422 Randomized the addresses of allocated executable memory on Windows. 4423 4424 4425 2010-08-02: Version 2.3.4 4426 4427 Fixed problems in implementation of ES5 function.prototype.bind. 4428 4429 Fixed error when using apply with arguments object on ARM (issue 784). 4430 4431 Added setting of global flags to debugger protocol. 4432 4433 Fixed an error affecting cached results of sin and cos (issue 792). 4434 4435 Removed memory leak from a boundary case where V8 is not initialized. 4436 4437 Fixed issue where debugger could set breakpoints outside the body 4438 of a function. 4439 4440 Fixed issue in debugger when using both live edit and step in features. 4441 4442 Added Number-letter (Nl) category to Unicode tables. These characters 4443 can now be used in identifiers. 4444 4445 Fixed an assert failure on X64 (issue 806). 4446 4447 Performance improvements on all platforms. 4448 4449 4450 2010-07-26: Version 2.3.3 4451 4452 Fixed error when building the d8 shell in a fresh checkout. 4453 4454 Implemented Function.prototype.bind (ES5 15.3.4.5). 4455 4456 Fixed an error in inlined stores on ia32. 4457 4458 Fixed an error when setting a breakpoint at the end of a function 4459 that does not end with a newline character. 4460 4461 Performance improvements on all platforms. 4462 4463 4464 2010-07-21: Version 2.3.2 4465 4466 Fixed compiler warnings when building with LLVM. 4467 4468 Fixed a bug with for-in applied to strings (issue 785). 4469 4470 Performance improvements on all platforms. 4471 4472 4473 2010-07-19: Version 2.3.1 4474 4475 Fixed compilation and linking with V8_INTERPRETED_REGEXP flag. 4476 4477 Fixed bug related to code flushing while compiling a lazy 4478 compilable function (issue http://crbug.com/49099). 4479 4480 Performance improvements on all platforms. 4481 4482 4483 2010-07-15: Version 2.3.0 4484 4485 Added ES5 Object.seal and Object.isSealed. 4486 4487 Added debugger API for scheduling debugger commands from a 4488 separate thread. 4489 4490 4491 2010-07-14: Version 2.2.24 4492 4493 Added API for capturing stack traces for uncaught exceptions. 4494 4495 Fixed crash bug when preparsing from a non-external V8 string 4496 (issue 775). 4497 4498 Fixed JSON.parse bug causing input not to be converted to string 4499 (issue 764). 4500 4501 Added ES5 Object.freeze and Object.isFrozen. 4502 4503 Performance improvements on all platforms. 4504 4505 4506 2010-07-07: Version 2.2.23 4507 4508 API change: Convert Unicode code points outside the basic multilingual 4509 plane to the replacement character. Previous behavior was to silently 4510 truncate the value to 16 bits. 4511 4512 Fixed crash: handle all flat string types in regexp replace. 4513 4514 Prevent invalid pre-parsing data passed in through the API from 4515 crashing V8. 4516 4517 Performance improvements on all platforms. 4518 4519 4520 2010-07-05: Version 2.2.22 4521 4522 Added ES5 Object.isExtensible and Object.preventExtensions. 4523 4524 Enabled building V8 as a DLL. 4525 4526 Fixed a bug in date code where -0 was not interpreted as 0 4527 (issue 736). 4528 4529 Performance improvements on all platforms. 4530 4531 4532 2010-06-30: Version 2.2.21 4533 4534 Fixed bug in externalizing some ASCII strings (Chromium issue 47824). 4535 4536 Updated JSON.stringify to floor the space parameter (issue 753). 4537 4538 Updated the Mozilla test expectations to the newest version. 4539 4540 Updated the ES5 Conformance Test expectations to the latest version. 4541 4542 Updated the V8 benchmark suite. 4543 4544 Provide actual breakpoints locations in response to setBreakpoint 4545 and listBreakpoints requests. 4546 4547 4548 2010-06-28: Version 2.2.20 4549 4550 Fixed bug with for-in on x64 platform (issue 748). 4551 4552 Fixed crash bug on x64 platform (issue 756). 4553 4554 Fixed bug in Object.getOwnPropertyNames. (chromium issue 41243). 4555 4556 Fixed a bug on ARM that caused the result of 1 << x to be 4557 miscalculated for some inputs. 4558 4559 Performance improvements on all platforms. 4560 4561 4562 2010-06-23: Version 2.2.19 4563 4564 Fixed bug that causes the build to break when profillingsupport=off 4565 (issue 738). 4566 4567 Added expose-externalize-string flag for testing extensions. 4568 4569 Resolve linker issues with using V8 as a DLL causing a number of 4570 problems with unresolved symbols. 4571 4572 Fixed build failure for cctests when ENABLE_DEBUGGER_SUPPORT is not 4573 defined. 4574 4575 Performance improvements on all platforms. 4576 4577 4578 2010-06-16: Version 2.2.18 4579 4580 Added API functions to retrieve information on indexed properties 4581 managed by the embedding layer. Fixes bug 737. 4582 4583 Made ES5 Object.defineProperty support array elements. Fixes bug 619. 4584 4585 Added heap profiling to the API. 4586 4587 Removed old named property query from the API. 4588 4589 Incremental performance improvements. 4590 4591 4592 2010-06-14: Version 2.2.17 4593 4594 Improved debugger support for stepping out of functions. 4595 4596 Incremental performance improvements. 4597 4598 4599 2010-06-09: Version 2.2.16 4600 4601 Removed the SetExternalStringDiposeCallback API. Changed the 4602 disposal of external string resources to call a virtual Dispose 4603 method on the resource. 4604 4605 Added support for more precise break points when debugging and 4606 stepping. 4607 4608 Memory usage improvements on all platforms. 4609 4610 4611 2010-06-07: Version 2.2.15 4612 4613 Added an API to control the disposal of external string resources. 4614 4615 Added missing initialization of a couple of variables which makes 4616 some compilers complaint when compiling with -Werror. 4617 4618 Improved performance on all platforms. 4619 4620 4621 2010-06-02: Version 2.2.14 4622 4623 Fixed a crash in code generated for String.charCodeAt. 4624 4625 Fixed a compilation issue with some GCC versions (issue 727). 4626 4627 Performance optimizations on x64 and ARM platforms. 4628 4629 4630 2010-05-31: Version 2.2.13 4631 4632 Implemented Object.getOwnPropertyDescriptor for element indices and 4633 strings (issue 599). 4634 4635 Fixed bug for windows 64 bit C calls from generated code. 4636 4637 Added new scons flag unalignedaccesses for arm builds. 4638 4639 Performance improvements on all platforms. 4640 4641 4642 2010-05-26: Version 2.2.12 4643 4644 Allowed accessors to be defined on objects rather than just object 4645 templates. 4646 4647 Changed the ScriptData API. 4648 4649 4650 2010-05-21: Version 2.2.11 4651 4652 Fixed crash bug in liveedit on 64 bit. 4653 4654 Use 'full compiler' when debugging is active. This should increase 4655 the density of possible break points, making single step more fine 4656 grained. This will only take effect for functions compiled after 4657 debugging has been started, so recompilation of all functions is 4658 required to get the full effect. IA32 and x64 only for now. 4659 4660 Misc. fixes to the Solaris build. 4661 4662 Added new flags --print-cumulative-gc-stat and --trace-gc-nvp. 4663 4664 Added filtering of CPU profiles by security context. 4665 4666 Fixed crash bug on ARM when running without VFP2 or VFP3. 4667 4668 Incremental performance improvements in all backends. 4669 4670 4671 2010-05-17: Version 2.2.10 4672 4673 Performance improvements in the x64 and ARM backends. 4674 4675 4676 2010-05-10: Version 2.2.9 4677 4678 Allowed Object.create to be called with a function (issue 697). 4679 4680 Fixed bug with Date.parse returning a non-NaN value when called on a 4681 non date string (issue 696). 4682 4683 Allowed unaligned memory accesses on ARM targets that support it (by 4684 Subrato K De of CodeAurora <subratokde (a] codeaurora.org>). 4685 4686 C++ API for retrieving JavaScript stack trace information. 4687 4688 4689 2010-05-05: Version 2.2.8 4690 4691 Performance improvements in the x64 and ARM backends. 4692 4693 4694 2010-05-03: Version 2.2.7 4695 4696 Added support for ES5 date time string format to Date.parse. 4697 4698 Performance improvements in the x64 backend. 4699 4700 4701 2010-04-28: Version 2.2.6 4702 4703 Added "amd64" as recognized architecture in scons build script 4704 (by Ryan Dahl <coldredlemur (a] gmail.com>). 4705 4706 Fixed bug in String search and replace with very simple RegExps. 4707 4708 Fixed bug in RegExp containing "\b^". 4709 4710 Performance improvements on all platforms. 4711 4712 4713 2010-04-26: Version 2.2.5 4714 4715 Various performance improvements (especially for ARM and x64) 4716 4717 Fixed bug in CPU profiling (http://crbug.com/42137) 4718 4719 Fixed a bug with the natives cache. 4720 4721 Fixed two bugs in the ARM code generator that can cause 4722 wrong calculations. 4723 4724 Fixed a bug that may cause a wrong result for shift operations. 4725 4726 4727 2010-04-21: Version 2.2.4 4728 4729 Fixed warnings on arm on newer GCC versions. 4730 4731 Fixed a number of minor bugs. 4732 4733 Performance improvements on all platforms. 4734 4735 4736 2010-04-14: Version 2.2.3 4737 4738 Added stack command and mem command to ARM simulator debugger. 4739 4740 Fixed scons snapshot and ARM build, and Windows X64 build issues. 4741 4742 Performance improvements on all platforms. 4743 4744 4745 2010-04-12: Version 2.2.2 4746 4747 Introduced new profiler API. 4748 4749 Fixed random number generator to produce full 32 random bits. 4750 4751 4752 2010-04-06: Version 2.2.1 4753 4754 Debugger improvements. 4755 4756 Fixed minor bugs. 4757 4758 4759 2010-03-29: Version 2.2.0 4760 4761 Fixed a few minor bugs. 4762 4763 Performance improvements for string operations. 4764 4765 4766 2010-03-26: Version 2.1.10 4767 4768 Fixed scons build issues. 4769 4770 Fixed a couple of minor bugs. 4771 4772 4773 2010-03-25: Version 2.1.9 4774 4775 Added API support for reattaching a global object to a context. 4776 4777 Extended debugger API with access to the internal debugger context. 4778 4779 Fixed Chromium crashes (issues http://crbug.com/39128 and 4780 http://crbug.com/39160) 4781 4782 4783 2010-03-24: Version 2.1.8 4784 4785 Added fine-grained garbage collection callbacks to the API. 4786 4787 Performance improvements on all platforms. 4788 4789 4790 2010-03-22: Version 2.1.7 4791 4792 Fixed issue 650. 4793 4794 Fixed a bug where __proto__ was sometimes enumerated (issue 646). 4795 4796 Performance improvements for arithmetic operations. 4797 4798 Performance improvements for string operations. 4799 4800 Print script name and line number information in stack trace. 4801 4802 4803 2010-03-17: Version 2.1.6 4804 4805 Performance improvements for arithmetic operations. 4806 4807 Performance improvements for string operations. 4808 4809 4810 2010-03-10: Version 2.1.4 4811 4812 Fixed code cache lookup for keyed IC's (issue http://crbug.com/37853). 4813 4814 Performance improvements on all platforms. 4815 4816 4817 2010-03-10: Version 2.1.3 4818 4819 Added API method for context-disposal notifications. 4820 4821 Added API method for accessing elements by integer index. 4822 4823 Added missing implementation of Uint32::Value and Value::IsUint32 4824 API methods. 4825 4826 Added IsExecutionTerminating API method. 4827 4828 Disabled strict aliasing for GCC 4.4. 4829 4830 Fixed string-concatenation bug (issue 636). 4831 4832 Performance improvements on all platforms. 4833 4834 4835 2010-02-23: Version 2.1.2 4836 4837 Fixed a crash bug caused by wrong assert. 4838 4839 Fixed a bug with register names on 64-bit V8 (issue 615). 4840 4841 Performance improvements on all platforms. 4842 4843 4844 2010-02-19: Version 2.1.1 4845 4846 [ES5] Implemented Object.defineProperty. 4847 4848 Improved profiler support. 4849 4850 Added SetPrototype method in the public V8 API. 4851 4852 Added GetScriptOrigin and GetScriptLineNumber methods to Function 4853 objects in the API. 4854 4855 Performance improvements on all platforms. 4856 4857 4858 2010-02-03: Version 2.1.0 4859 4860 Values are now always wrapped in objects when used as a receiver. 4861 (issue 223). 4862 4863 [ES5] Implemented Object.getOwnPropertyNames. 4864 4865 [ES5] Restrict JSON.parse to only accept strings that conforms to the 4866 JSON grammar. 4867 4868 Improvement of debugger agent (issue 549 and 554). 4869 4870 Fixed problem with skipped stack frame in profiles (issue 553). 4871 4872 Solaris support by Erich Ocean <erich.ocean (a] me.com> and Ryan Dahl 4873 <ry (a] tinyclouds.org>. 4874 4875 Fixed a bug that Math.round() returns incorrect results for huge 4876 integers. 4877 4878 Fixed enumeration order for objects created from some constructor 4879 functions (isue http://crbug.com/3867). 4880 4881 Fixed arithmetic on some integer constants (issue 580). 4882 4883 Numerous performance improvements including porting of previous IA-32 4884 optimizations to x64 and ARM architectures. 4885 4886 4887 2010-01-14: Version 2.0.6 4888 4889 Added ES5 Object.getPrototypeOf, GetOwnPropertyDescriptor, 4890 GetOwnProperty, FromPropertyDescriptor. 4891 4892 Fixed Mac x64 build errors. 4893 4894 Improved performance of some math and string operations. 4895 4896 Improved performance of some regexp operations. 4897 4898 Improved performance of context creation. 4899 4900 Improved performance of hash tables. 4901 4902 4903 2009-12-18: Version 2.0.5 4904 4905 Extended to upper limit of map space to allow for 7 times as many map 4906 to be allocated (issue 524). 4907 4908 Improved performance of code using closures. 4909 4910 Improved performance of some binary operations involving doubles. 4911 4912 4913 2009-12-16: Version 2.0.4 4914 4915 Added ECMAScript 5 Object.create. 4916 4917 Improved performance of Math.max and Math.min. 4918 4919 Optimized adding of strings on 64-bit platforms. 4920 4921 Improved handling of external strings by using a separate table 4922 instead of weak handles. This improves garbage collection 4923 performance and uses less memory. 4924 4925 Changed code generation for object and array literals in toplevel 4926 code to be more compact by doing more work in the runtime. 4927 4928 Fixed a crash bug triggered when garbage collection happened during 4929 generation of a callback load inline cache stub. 4930 4931 Fixed crash bug sometimes triggered when local variables shadowed 4932 parameters in functions that used the arguments object. 4933 4934 4935 2009-12-03: Version 2.0.3 4936 4937 Optimized handling and adding of strings, for-in and Array.join. 4938 4939 Heap serialization is now non-destructive. 4940 4941 Improved profiler support with information on time spend in C++ 4942 callbacks registered through the API. 4943 4944 Added commands to the debugger protocol for starting/stopping 4945 profiling. 4946 4947 Enabled the non-optimizing compiler for top-level code. 4948 4949 Changed the API to only allow strings to be set as data objects on 4950 Contexts and scripts to avoid potentially keeping global objects 4951 around for too long (issue 528). 4952 4953 OpenBSD support patch by Peter Valchev <pvalchev (a] gmail.com>. 4954 4955 Fixed bugs. 4956 4957 4958 2009-11-24: Version 2.0.2 4959 4960 Improved profiler support. 4961 4962 Fixed bug that broke compilation of d8 with readline support. 4963 4964 4965 2009-11-20: Version 2.0.1 4966 4967 Fixed crash bug in String.prototype.replace. 4968 4969 Reverted a change which caused Chromium interactive ui test 4970 failures. 4971 4972 4973 2009-11-18: Version 2.0.0 4974 4975 Added support for VFP on ARM. 4976 4977 Added TryCatch::ReThrow method to the API. 4978 4979 Reduced the size of snapshots and improved the snapshot load time. 4980 4981 Improved heap profiler support. 4982 4983 64-bit version now supported on Windows. 4984 4985 Fixed a number of debugger issues. 4986 4987 Fixed bugs. 4988 4989 4990 2009-10-29: Version 1.3.18 4991 4992 Reverted a change which caused crashes in RegExp replace. 4993 4994 Reverted a change which caused Chromium ui_tests failure. 4995 4996 4997 2009-10-28: Version 1.3.17 4998 4999 Added API method to get simple heap statistics. 5000 5001 Improved heap profiler support. 5002 5003 Fixed the implementation of the resource constraint API so it 5004 works when using snapshots. 5005 5006 Fixed a number of issues in the Windows 64-bit version. 5007 5008 Optimized calls to API getters. 5009 5010 Added valgrind notification on code modification to the 64-bit version. 5011 5012 Fixed issue where we logged shared library addresses on Windows at 5013 startup and never used them. 5014 5015 5016 2009-10-16: Version 1.3.16 5017 5018 X64: Convert smis to holding 32 bits of payload. 5019 5020 Introduced v8::Integer::NewFromUnsigned method. 5021 5022 Added missing null check in Context::GetCurrent. 5023 5024 Added trim, trimLeft and trimRight methods to String 5025 Patch by Jan de Mooij <jandemooij (a] gmail.com> 5026 5027 Implement ES5 Array.isArray 5028 Patch by Jan de Mooij <jandemooij (a] gmail.com> 5029 5030 Skip access checks for hidden properties. 5031 5032 Added String::Concat(Handle<String> left, Handle<String> right) to the 5033 V8 API. 5034 5035 Fixed GYP-based builds of V8. 5036 5037 5038 2009-10-07: Version 1.3.15 5039 5040 Expanded the maximum size of the code space to 512MB for 64-bit mode. 5041 5042 Fixed a crash bug happening when starting profiling (issue 5043 http://crbug.com/23768). 5044 5045 5046 2009-10-07: Version 1.3.14 5047 5048 Added GetRealNamedProperty to the API to lookup real properties 5049 located on the object or in the prototype chain skipping any 5050 interceptors. 5051 5052 Fixed the stack limits setting API to work correctly with threads. The 5053 stack limit now needs to be set to each thread thich is used with V8. 5054 5055 Removed the high-priority flag from IdleNotification() 5056 5057 Ensure V8 is initialized before locking and unlocking threads. 5058 5059 Implemented a new JavaScript minifier for compressing the source of 5060 the built-in JavaScript. This removes non-Open Source code from Douglas 5061 Crockford from the project. 5062 5063 Added a missing optimization in StringCharAt. 5064 5065 Fixed some flaky socket tests. 5066 5067 Change by Alexander Botero-Lowry to fix profiler sampling on FreeBSD 5068 in 64-bit mode. 5069 5070 Fixed memory leaks in the thread management code. 5071 5072 Fixed the result of assignment to a pixel array. The assigned value 5073 is now the result. 5074 5075 Error reporting for invalid left-hand sides in for-in statements, pre- 5076 and postfix count expressions, and assignments now matches the JSC 5077 behavior in Safari 4. 5078 5079 Follow the spec in disallowing function declarations without a name. 5080 5081 Always allocate code objects within a 2 GB range. On x64 architecture 5082 this is used to use near calls (32-bit displacement) in Code objects. 5083 5084 Optimized array construction ported to x64 and ARM architectures. 5085 5086 [ES5] Changed Object.keys to return strings for element indices. 5087 5088 5089 2009-09-23: Version 1.3.13 5090 5091 Fixed uninitialized memory problem. 5092 5093 Improved heap profiler support. 5094 5095 5096 2009-09-22: Version 1.3.12 5097 5098 Changed behavior of |function|.toString() on built-in functions to 5099 be compatible with other implementations. Patch by Jan de Mooij. 5100 5101 Added Object::IsDirty in the API. 5102 5103 Optimized array construction; it is now handled purely in native 5104 code. 5105 5106 [ES5] Made properties of the arguments array enumerable. 5107 5108 [ES5] Added test suite adapter for the es5conform test suite. 5109 5110 [ES5] Added Object.keys function. 5111 5112 5113 2009-09-15: Version 1.3.11 5114 5115 Fixed crash in error reporting during bootstrapping. 5116 5117 Optimized generated IA32 math code by using SSE2 instructions when 5118 available. 5119 5120 Implemented missing pieces of debugger infrastructure on ARM. The 5121 debugger is now fully functional on ARM. 5122 5123 Made 'hidden' the default visibility for gcc. 5124 5125 5126 2009-09-09: Version 1.3.10 5127 5128 Fixed profiler on Mac in 64-bit mode. 5129 5130 Optimized creation of objects from simple constructor functions on 5131 ARM. 5132 5133 Fixed a number of debugger issues. 5134 5135 Reduced the amount of memory consumed by V8. 5136 5137 5138 2009-09-02: Version 1.3.9 5139 5140 Optimized stack guard checks on ARM. 5141 5142 Optimized API operations by inlining more in the API. 5143 5144 Optimized creation of objects from simple constructor functions. 5145 5146 Enabled a number of missing optimizations in the 64-bit port. 5147 5148 Implemented native-code support for regular expressions on ARM. 5149 5150 Stopped using the 'sahf' instruction on 64-bit machines that do 5151 not support it. 5152 5153 Fixed a bug in the support for forceful termination of JavaScript 5154 execution. 5155 5156 5157 2009-08-26: Version 1.3.8 5158 5159 Changed the handling of idle notifications to allow idle 5160 notifications when V8 has not yet been initialized. 5161 5162 Fixed ARM simulator compilation problem on Windows. 5163 5164 5165 2009-08-25: Version 1.3.7 5166 5167 Reduced the size of generated code on ARM platforms by reducing 5168 the size of constant pools. 5169 5170 Changed build files to not include the 'ENV' user environment 5171 variable in the build environment. 5172 5173 Changed the handling of idle notifications. 5174 5175 5176 2009-08-21: Version 1.3.6 5177 5178 Added support for forceful termination of JavaScript execution. 5179 5180 Added low memory notification to the API. The embedding host can signal 5181 a low memory situation to V8. 5182 5183 Changed the handling of global handles (persistent handles in the API 5184 sense) to avoid issues regarding allocation of new global handles 5185 during weak handle callbacks. 5186 5187 Changed the growth policy of the young space. 5188 5189 Fixed a GC issue introduced in version 1.3.5. 5190 5191 5192 2009-08-19: Version 1.3.5 5193 5194 Optimized initialization of some arrays in the builtins. 5195 5196 Fixed mac-nm script to support filenames with spaces. 5197 5198 Support for using the V8 profiler when V8 is embedded in a Windows DLL. 5199 5200 Changed typeof RegExp from 'object' to 'function' for compatibility. 5201 Fixed bug where regexps were not callable across contexts. 5202 5203 Added context independent script compilation to the API. 5204 5205 Added API call to get the stack trace for an exception. 5206 5207 Added API for getting object mirrors. 5208 5209 Made sure that SSE3 instructions are used whenever possible even when 5210 running off a snapshot generated without using SSE3 instructions. 5211 5212 Tweaked the handling of the initial size and growth policy of the heap. 5213 5214 Added native code generation for RegExp to 64-bit version. 5215 5216 Added JavaScript debugger support to 64-bit version. 5217 5218 5219 2009-08-13: Version 1.3.4 5220 5221 Added a readline() command to the d8 shell. 5222 5223 Fixed bug in json parsing. 5224 5225 Added idle notification to the API and reduced memory on idle 5226 notifications. 5227 5228 5229 2009-08-12: Version 1.3.3 5230 5231 Fixed issue 417: incorrect %t placeholder expansion. 5232 5233 Added .gitignore file similar to Chromium's one. 5234 5235 Fixed SConstruct file to build with new logging code for Android. 5236 5237 API: added function to find instance of template in prototype 5238 chain. Inlined Object::IsInstanceOf. 5239 5240 Land change to notify valgrind when we modify code on x86. 5241 5242 Added api call to determine whether a string can be externalized. 5243 5244 Added a write() command to d8. 5245 5246 5247 2009-08-05: Version 1.3.2 5248 5249 Started new compiler infrastructure for two-pass compilation using a 5250 control flow graph constructed from the AST. 5251 5252 Profiler stack sampling for X64. 5253 5254 Safe handling of NaN to Posix platform-dependent time functions. 5255 5256 Added a new profiler control API to unify controlling various aspects 5257 of profiling. 5258 5259 Fixed issue 392. 5260 5261 5262 2009-07-30: Version 1.3.1 5263 5264 Speed improvements to accessors and interceptors. 5265 5266 Added support for capturing stack information on custom errors. 5267 5268 Added support for morphing an object into a pixel array where its 5269 indexed properties are stored in an external byte array. Values written 5270 are always clamped to the 0..255 interval. 5271 5272 Profiler on x64 now handles C/C++ functions from shared libraries. 5273 5274 Changed the debugger to avoid stepping into function.call/apply if the 5275 function is a built-in. 5276 5277 Initial implementation of constructor heap profile for JS objects. 5278 5279 More fine grained control of profiling aspects through the API. 5280 5281 Optimized the called as constructor check for API calls. 5282 5283 5284 2009-07-27: Version 1.3.0 5285 5286 Allowed RegExp objects to be called as functions (issue 132). 5287 5288 Fixed issue where global property cells would escape after 5289 detaching the global object; see http://crbug.com/16276. 5290 5291 Added support for stepping into setters and getters in the 5292 debugger. 5293 5294 Changed the debugger to avoid stopping in its own JavaScript code 5295 and in the code of built-in functions. 5296 5297 Fixed issue 345 by avoiding duplicate escaping labels. 5298 5299 Fixed ARM code generator crash in short-circuited boolean 5300 expressions and added regression tests. 5301 5302 Added an external allocation limit to avoid issues where small V8 5303 objects would hold on to large amounts of external memory without 5304 causing garbage collections. 5305 5306 Finished more of the inline caching stubs for x64 targets. 5307 5308 5309 2009-07-13: Version 1.2.14 5310 5311 Added separate paged heap space for global property cells and 5312 avoid updating the write barrier when storing into them. 5313 5314 Improved peep-hole optimization on ARM platforms by not emitting 5315 unnecessary debug information. 5316 5317 Re-enabled ICs for loads and calls that skip a global object 5318 during lookup through the prototype chain. 5319 5320 Allowed access through global proxies to use ICs. 5321 5322 Fixed issue 401. 5323 5324 5325 2009-07-09: Version 1.2.13 5326 5327 Fixed issue 397, issue 398, and issue 399. 5328 5329 Added support for breakpoint groups. 5330 5331 Fixed bugs introduced with the new global object representation. 5332 5333 Fixed a few bugs in the ARM code generator. 5334 5335 5336 2009-07-06: Version 1.2.12 5337 5338 Added stack traces collection to Error objects accessible through 5339 the e.stack property. 5340 5341 Changed RegExp parser to use a recursive data structure instead of 5342 stack-based recursion. 5343 5344 Optimized Date object construction and string concatenation. 5345 5346 Improved performance of div, mod, and mul on ARM platforms. 5347 5348 5349 2009-07-02: Version 1.2.11 5350 5351 Improved performance on IA-32 and ARM. 5352 5353 Fixed profiler sampler implementation on Mac OS X. 5354 5355 Changed the representation of global objects to improve 5356 performance of adding a lot of new properties. 5357 5358 5359 2009-06-29: Version 1.2.10 5360 5361 Improved debugger support. 5362 5363 Fixed bug in exception message reporting (issue 390). 5364 5365 Improved overall performance. 5366 5367 5368 2009-06-23: Version 1.2.9 5369 5370 Improved math performance on ARM. 5371 5372 Fixed profiler name-inference bug. 5373 5374 Fixed handling of shared libraries in the profiler tick processor 5375 scripts. 5376 5377 Fixed handling of tests that time out in the test scripts. 5378 5379 Fixed compilation on MacOS X version 10.4. 5380 5381 Fixed two bugs in the regular expression engine. 5382 5383 Fixed a bug in the string type inference. 5384 5385 Fixed a bug in the handling of 'constant function' properties. 5386 5387 Improved overall performance. 5388 5389 5390 2009-06-16: Version 1.2.8 5391 5392 Optimized math on ARM platforms. 5393 5394 Fixed two crash bugs in the handling of getters and setters. 5395 5396 Improved the debugger support by adding scope chain information. 5397 5398 Improved the profiler support by compressing log data transmitted 5399 to clients. 5400 5401 Improved overall performance. 5402 5403 5404 2009-06-08: Version 1.2.7 5405 5406 Improved debugger and profiler support. 5407 5408 Reduced compilation time by improving the handling of deferred 5409 code. 5410 5411 Optimized interceptor accesses where the property is on the object 5412 on which the interceptors is attached. 5413 5414 Fixed compilation problem on GCC 4.4 by changing the stack 5415 alignment to 16 bytes. 5416 5417 Fixed handle creation to follow stric aliasing rules. 5418 5419 Fixed compilation on FreeBSD. 5420 5421 Introduced API for forcing the deletion of a property ignoring 5422 interceptors and attributes. 5423 5424 5425 2009-05-29: Version 1.2.6 5426 5427 Added a histogram recording hit rates at different levels of the 5428 compilation cache. 5429 5430 Added stack overflow check for the RegExp analysis phase. Previously a 5431 very long regexp graph could overflow the stack with recursive calls. 5432 5433 Use a dynamic buffer when collecting log events in memory. 5434 5435 Added start/stop events to the profiler log. 5436 5437 Fixed infinite loop which could happen when setting a debug break while 5438 executing a RegExp compiled to native code. 5439 5440 Fixed handling of lastIndexOf called with negative index (issue 351). 5441 5442 Fixed irregular crash in profiler test (issue 358). 5443 5444 Fixed compilation issues with some versions of gcc. 5445 5446 5447 2009-05-26: Version 1.2.5 5448 5449 Fixed bug in initial boundary check for Boyer-Moore text 5450 search (issue 349). 5451 5452 Fixed compilation issues with MinGW and gcc 4.3+ and added support 5453 for armv7 and cortex-a8 architectures. Patches by Lei Zhang and 5454 Craig Schlenter. 5455 5456 Added a script cache to the debugger. 5457 5458 Optimized compilation performance by improving internal data 5459 structures and avoiding expensive property load optimizations for 5460 code that's infrequently executed. 5461 5462 Exposed the calling JavaScript context through the static API 5463 function Context::GetCalling(). 5464 5465 5466 2009-05-18: Version 1.2.4 5467 5468 Improved performance of floating point number allocation for ARM 5469 platforms. 5470 5471 Fixed crash when using the instanceof operator on functions with 5472 number values in their prototype chain (issue 341). 5473 5474 Optimized virtual frame operations in the code generator to speed 5475 up compilation time and allocated the frames in the zone. 5476 5477 Made the representation of virtual frames and jump targets in the 5478 code generator much more compact. 5479 5480 Avoided linear search for non-locals in scope code when resolving 5481 variables inside with and eval scopes. 5482 5483 Optimized lexical scanner by dealing with whitespace as part of 5484 the token scanning instead of as a separate step before it. 5485 5486 Changed the scavenging collector so that promoted objects do not 5487 reside in the old generation while their remembered set is being 5488 swept for pointers into the young generation. 5489 5490 Fixed numeric overflow handling when compiling count operations. 5491 5492 5493 2009-05-11: Version 1.2.3 5494 5495 Fixed bug in reporting of out-of-memory situations. 5496 5497 Introduced hidden prototypes on certain builtin prototype objects 5498 such as String.prototype to emulate JSC's behavior of restoring 5499 the original function when deleting functions from those prototype 5500 objects. 5501 5502 Fixed crash bug in the register allocator. 5503 5504 5505 2009-05-04: Version 1.2.2 5506 5507 Fixed bug in array sorting for sparse arrays (issue 326). 5508 5509 Added support for adding a soname when building a shared library 5510 on Linux (issue 151). 5511 5512 Fixed bug caused by morphing internal ASCII strings to external 5513 two-byte strings. Slices over ASCII strings have to forward ASCII 5514 checks to the underlying buffer string. 5515 5516 Allowed API call-as-function handlers to be called as 5517 constructors. 5518 5519 Fixed a crash bug where an external string was disposed but a 5520 slice of the external string survived as a symbol. 5521 5522 5523 2009-04-27: Version 1.2.1 5524 5525 Added EcmaScript 5 JSON object. 5526 5527 Fixed bug in preemption support on ARM. 5528 5529 5530 2009-04-23: Version 1.2.0 5531 5532 Optimized floating-point operations on ARM. 5533 5534 Added a number of extensions to the debugger API. 5535 5536 Changed the enumeration order for unsigned integer keys to always 5537 be numerical order. 5538 5539 Added a "read" extension to the shell sample. 5540 5541 Added support for Array.prototype.reduce and 5542 Array.prototype.reduceRight. 5543 5544 Added an option to the SCons build to control Microsoft Visual C++ 5545 link-time code generation. 5546 5547 Fixed a number of bugs (in particular issue 315, issue 316, 5548 issue 317 and issue 318). 5549 5550 5551 2009-04-15: Version 1.1.10 5552 5553 Fixed crash bug that occurred when loading a const variable in the 5554 presence of eval. 5555 5556 Allowed using with and eval in registered extensions in debug mode 5557 by fixing bogus assert. 5558 5559 Fixed the source position for function returns to enable the 5560 debugger to break there. 5561 5562 5563 2009-04-14: Version 1.1.9 5564 5565 Made the stack traversal code in the profiler robust by avoiding 5566 to look into the heap. 5567 5568 Added name inferencing for anonymous functions to facilitate 5569 debugging and profiling. 5570 5571 Re-enabled stats timers in the developer shell (d8). 5572 5573 Fixed issue 303 by avoiding to shortcut cons-symbols. 5574 5575 5576 2009-04-11: Version 1.1.8 5577 5578 Changed test-debug/ThreadedDebugging to be non-flaky (issue 96). 5579 5580 Fixed step-in handling for Function.prototype.apply and call in 5581 the debugger (issue 269). 5582 5583 Fixed v8::Object::DeleteHiddenValue to not bail out when there 5584 are no hidden properties. 5585 5586 Added workaround for crash bug, where external symbol table 5587 entries with deleted resources would lead to NPEs when looking 5588 up in the symbol table. 5589 5590 5591 2009-04-07: Version 1.1.7 5592 5593 Added support for easily importing additional environment 5594 variables into the SCons build. 5595 5596 Optimized strict equality checks. 5597 5598 Fixed crash in indexed setters on objects without a corresponding 5599 getter (issue 298). 5600 5601 Re-enabled script compilation cache. 5602 5603 5604 2009-04-01: Version 1.1.6 5605 5606 Reverted an unsafe code generator change. 5607 5608 5609 2009-04-01: Version 1.1.5 5610 5611 Fixed bug that caused function literals to not be optimized as 5612 much as other functions. 5613 5614 Improved profiler support. 5615 5616 Fixed a crash bug in connection with debugger unloading. 5617 5618 Fixed a crash bug in the code generator caused by losing the 5619 information that a frame element was copied. 5620 5621 Fixed an exception propagation bug that could cause non-null 5622 return values when exceptions were thrown. 5623 5624 5625 2009-03-30: Version 1.1.4 5626 5627 Optimized String.prototype.match. 5628 5629 Improved the stack information in profiles. 5630 5631 Fixed bug in ARM port making it possible to compile the runtime 5632 system for thumb mode again. 5633 5634 Implemented a number of optimizations in the code generator. 5635 5636 Fixed a number of memory leaks in tests. 5637 5638 Fixed crash bug in connection with script source code and external 5639 strings. 5640 5641 5642 2009-03-24: Version 1.1.3 5643 5644 Fixed assertion failures in compilation of loop conditions. 5645 5646 Removed STL dependency from developer shell (d8). 5647 5648 Added infrastructure for protecting the V8 heap from corruption 5649 caused by memory modifications from the outside. 5650 5651 5652 2009-03-24: Version 1.1.2 5653 5654 Improved frame merge code generated by the code generator. 5655 5656 Optimized String.prototype.replace. 5657 5658 Implemented __defineGetter__ and __defineSetter__ for properties 5659 with integer keys on non-array objects. 5660 5661 Improved debugger and profiler support. 5662 5663 Fixed a number of portability issues to allow compilation for 5664 smaller ARM devices. 5665 5666 Exposed object cloning through the API. 5667 5668 Implemented hidden properties. This is used to expose an identity 5669 hash for objects through the API. 5670 5671 Implemented restarting of regular expressions if their input 5672 string changes representation during preemption. 5673 5674 Fixed a code generator bug that could cause assignments in loops 5675 to be ignored if using continue to break out of the loop (issue 5676 284). 5677 5678 5679 2009-03-12: Version 1.1.1 5680 5681 Fixed an assertion in the new compiler to take stack overflow 5682 exceptions into account. 5683 5684 Removed exception propagation code that could cause crashes. 5685 5686 Fixed minor bug in debugger line number computations. 5687 5688 8-byte align the C stack on Linux and Windows to speed up floating 5689 point computations. 5690 5691 5692 2009-03-12: Version 1.1.0 5693 5694 Improved code generation infrastructure by doing simple register 5695 allocation and constant folding and propagation. 5696 5697 Optimized regular expression matching by avoiding to create 5698 intermediate string arrays and by flattening nested array 5699 representations of RegExp data. 5700 5701 Traverse a few stack frames when recording profiler samples to 5702 include partial call graphs in the profiling output. 5703 5704 Added support for using OProfile to profile generated code. 5705 5706 Added remote debugging support to the D8 developer shell. 5707 5708 Optimized creation of nested literals like JSON objects. 5709 5710 Fixed a bug in garbage collecting unused maps and turned it on by 5711 default (--collect-maps). 5712 5713 Added support for running tests under Valgrind. 5714 5715 5716 2009-02-27: Version 1.0.3 5717 5718 Optimized double-to-integer conversions in bit operations by using 5719 SSE3 instructions if available. 5720 5721 Optimized initialization sequences that store to multiple 5722 properties of the same object. 5723 5724 Changed the D8 debugger frontend to use JSON messages. 5725 5726 Force garbage collections when disposing contexts. 5727 5728 Align code objects at 32-byte boundaries. 5729 5730 5731 2009-02-25: Version 1.0.2 5732 5733 Improved profiling support by performing simple call stack 5734 sampling for ticks and by fixing a bug in the logging of code 5735 addresses. 5736 5737 Fixed a number of debugger issues. 5738 5739 Optimized code that uses eval. 5740 5741 Fixed a couple of bugs in the regular expression engine. 5742 5743 Reduced the size of generated code for certain regular expressions. 5744 5745 Removed JSCRE completely. 5746 5747 Fixed issue where test could not be run if there was a dot in the 5748 checkout path. 5749 5750 5751 2009-02-13: Version 1.0.1 5752 5753 Fixed two crash-bugs in irregexp (issue 231 and 233). 5754 5755 Fixed a number of minor bugs (issue 87, 227 and 228). 5756 5757 Added support for morphing strings to external strings on demand 5758 to avoid having to create copies in the embedding code. 5759 5760 Removed experimental support for external symbol callbacks. 5761 5762 5763 2009-02-09: Version 1.0.0 5764 5765 Fixed crash-bug in the code generation for case independent 16 bit 5766 backreferences. 5767 5768 Made shells more robust in the presence of string conversion 5769 failures (issue 224). 5770 5771 Fixed a potential infinite loop when attempting to resolve 5772 eval (issue 221). 5773 5774 Miscellaneous fixes to the new regular expression engine. 5775 5776 Reduced binary by stripping unneeded text from JavaScript library and 5777 minifying some JavaScript files. 5778 5779 5780 2009-01-27: Version 0.4.9 5781 5782 Enabled new regular expression engine. 5783 5784 Made a number of changes to the debugger protocol. 5785 5786 Fixed a number of bugs in the preemption support. 5787 5788 Added -p option to the developer shell to run files in parallel 5789 using preemption. 5790 5791 Fixed a number of minor bugs (including issues 176, 187, 189, 192, 5792 193, 198 and 201). 5793 5794 Fixed a number of bugs in the serialization/deserialization 5795 support for the ARM platform. 5796 5797 5798 2009-01-19: Version 0.4.8.1 5799 5800 Minor patch to debugger support. 5801 5802 5803 2009-01-16: Version 0.4.8 5804 5805 Fixed string length bug on ARM (issue 171). 5806 5807 Made most methods in the API const. 5808 5809 Optimized object literals by improving data locality. 5810 5811 Fixed bug that caused incomplete functions to be cached in case of 5812 stack overflow exceptions. 5813 5814 Fixed bugs that caused catch variables and variables introduced by 5815 eval to behave incorrectly when using accessors (issues 186, 190 5816 and 191). 5817 5818 5819 2009-01-06: Version 0.4.7 5820 5821 Minor bugfixes and optimizations. 5822 5823 Added command line debugger to D8 shell. 5824 5825 Fixed subtle bug that caused the wrong 'this' to be used when 5826 calling a caught function in a catch clause. 5827 5828 Inline array loads within loops directly in the code instead of 5829 always calling a stub. 5830 5831 5832 2008-12-11: Version 0.4.6 5833 5834 Fixed exception reporting bug where certain exceptions were 5835 incorrectly reported as uncaught. 5836 5837 Improved the memory allocation strategy used during compilation to 5838 make running out of memory when compiling huge scripts less 5839 likely. 5840 5841 Optimized String.replace by avoiding the construction of certain 5842 sub strings. 5843 5844 Fixed bug in code generation for large switch statements on ARM. 5845 5846 Fixed bug that caused V8 to change the global object template 5847 passed in by the user. 5848 5849 Changed the API for creating object groups used during garbage 5850 collection. Entire object groups are now passed to V8 instead of 5851 individual members of the groups. 5852 5853 5854 2008-12-03: Version 0.4.5 5855 5856 Added experimental API support for allocating V8 symbols as 5857 external strings. 5858 5859 Fixed bugs in debugging support on ARM. 5860 5861 Changed eval implementation to correctly detect whether or not a 5862 call to eval is aliased. 5863 5864 Fixed bug caused by a combination of the compilation cache and 5865 dictionary probing in native code. The bug caused us to sometimes 5866 call functions that had not yet been compiled. 5867 5868 Added platform support for FreeBSD. 5869 5870 Added support for building V8 on Windows with either the shared or 5871 static version of MSVCRT 5872 5873 Added the v8::jscre namespace around the jscre functions to avoid 5874 link errors (duplicate symbols) when building Google Chrome. 5875 5876 Added support for calling a JavaScript function with the current 5877 debugger execution context as its argument to the debugger 5878 interface. 5879 5880 Changed the type of names of counters from wchar_t to char. 5881 5882 Changed the Windows system call used to compute daylight savings 5883 time. The system call that we used to use became four times 5884 slower on WinXP SP3. 5885 5886 Added support in the d8 developer shell for memory-mapped counters 5887 and added a stats-viewer tool. 5888 5889 Fixed bug in upper/lower case mappings (issue 149). 5890 5891 5892 2008-11-17: Version 0.4.4 5893 5894 Reduced code size by using shorter instruction encoding when 5895 possible. 5896 5897 Added a --help option to the shell sample and to the d8 shell. 5898 5899 Added visual studio project files for building the ARM simulator. 5900 5901 Fixed a number of ARM simulator issues. 5902 5903 Fixed bug in out-of-memory handling on ARM. 5904 5905 Implemented shell support for passing arguments to a script from 5906 the command line. 5907 5908 Fixed bug in date code that made certain date functions return -0 5909 instead of 0 for dates before the epoch. 5910 5911 Restricted applications of eval so it can only be used in the 5912 context of the associated global object. 5913 5914 Treat byte-order marks as whitespace characters. 5915 5916 5917 2008-11-04: Version 0.4.3 5918 5919 Added support for API accessors that prohibit overwriting by 5920 accessors defined in JavaScript code by using __defineGetter__ and 5921 __defineSetter__. 5922 5923 Improved handling of conditionals in test status files. 5924 5925 Introduced access control in propertyIsEnumerable. 5926 5927 Improved performance of some string operations by caching 5928 information about the type of the string between operations. 5929 5930 Fixed bug in fast-case code for switch statements that only have 5931 integer labels. 5932 5933 5934 2008-10-30: Version 0.4.2 5935 5936 Improved performance of Array.prototype.concat by moving the 5937 implementation to C++ (issue 123). 5938 5939 Fixed heap growth policy to avoid growing old space to its maximum 5940 capacity before doing a garbage collection and fixed issue that 5941 would lead to artificial out of memory situations (issue 129). 5942 5943 Fixed Date.prototype.toLocaleDateString to return the date in the 5944 same format as WebKit. 5945 5946 Added missing initialization checks to debugger API. 5947 5948 Added removing of unused maps during GC. 5949 5950 5951 2008-10-28: Version 0.4.1 5952 5953 Added caching of RegExp data in compilation cache. 5954 5955 Added Visual Studio project file for d8 shell. 5956 5957 Fixed function call performance regression introduced in version 5958 0.4.0 when splitting the global object in two parts (issue 120). 5959 5960 Fixed issue 131 by checking for empty handles before throwing and 5961 reporting exceptions. 5962 5963 5964 2008-10-23: Version 0.4.0 5965 5966 Split the global object into two parts: The state holding global 5967 object and the global object proxy. 5968 5969 Fixed bug that affected the value of an assignment to an element 5970 in certain cases (issue 116). 5971 5972 Added GetPropertyNames functionality (issue 33) and extra Date 5973 functions (issue 77) to the API. 5974 5975 Changed WeakReferenceCallback to take a Persistent<Value> instead 5976 of a Persistent<Object> (issue 101). 5977 5978 Fixed issues with message reporting for exceptions in try-finally 5979 blocks (issues 73 and 75). 5980 5981 Optimized flattening of strings and string equality checking. 5982 5983 Improved Boyer-Moore implementation for faster indexOf operations. 5984 5985 Added development shell (d8) which includes counters and 5986 completion support. 5987 5988 Fixed problem with the receiver passed to functions called from 5989 eval (issue 124). 5990 5991 5992 2008-10-16: Version 0.3.5 5993 5994 Improved string hash-code distribution by excluding bit-field bits 5995 from the hash-code. 5996 5997 Changed string search algorithm used in indexOf from KMP to 5998 Boyer-Moore. 5999 6000 Improved the generated code for the instanceof operator. 6001 6002 Improved performance of slow-case string equality checks by 6003 specializing the code based on the string representation. 6004 6005 Improve the handling of out-of-memory situations (issue 70). 6006 6007 Improved performance of strict equality checks. 6008 6009 Improved profiler output to make it easier to see anonymous 6010 functions. 6011 6012 Improved performance of slow-case keyed loads. 6013 6014 Improved property access performance by allocating a number of 6015 properties in the front object. 6016 6017 Changed the toString behavior on the built-in object constructors 6018 to print [native code] instead of the actual source. Some web 6019 applications do not like constructors with complex toString 6020 results. 6021 6022 6023 2008-10-06: Version 0.3.4 6024 6025 Changed Array.prototype.sort to use quick sort. 6026 6027 Fixed code generation issue where leaving a finally block with 6028 break or continue would accumulate elements on the expression 6029 stack (issue 86). 6030 6031 Made sure that the name accessor on functions returns the expected 6032 names for builtin JavaScript functions and C++ callback functions. 6033 6034 Added fast case code for extending the property storage array of 6035 JavaScript objects. 6036 6037 Ported switch statement optimizations introduced in version 0.3.3 6038 to the ARM code generator. 6039 6040 Allowed GCC to use strict-aliasing rules when compiling. 6041 6042 Improved performance of arguments object allocation by taking care 6043 of arguments adaptor frames in the generated code. 6044 6045 Updated the V8 benchmark suite to version 2. 6046 6047 6048 2008-09-25: Version 0.3.3 6049 6050 Improved handling of relocation information to enable more 6051 peep-hole optimizations. 6052 6053 Optimized switch statements where all labels are constant small 6054 integers. 6055 6056 Optimized String.prototype.indexOf for common cases. 6057 6058 Fixed more build issues (issue 80). 6059 6060 Fixed a couple of profiler issues. 6061 6062 Fixed bug where the body of a function created using the Function 6063 constructor was not allowed to end with a single-line comment 6064 (issue 85). 6065 6066 Improved handling of object literals by canonicalizing object 6067 literal maps. This will allow JSON objects with the same set of 6068 properties to share the same map making inline caching work better 6069 for JSON objects. 6070 6071 6072 2008-09-17: Version 0.3.2 6073 6074 Generalized the EvalCache into a CompilationCache and enabled it 6075 for scripts too. The current strategy is to retire all entries 6076 whenever a mark-sweep collection is started. 6077 6078 Fixed bug where switch statements containing only a default case 6079 would lead to an unbalanced stack (issue 69). 6080 6081 Fixed bug that made access to the function in a named function 6082 expression impossible in certain situations (issue 24). 6083 6084 Fixed even more build issues. 6085 6086 Optimized calling conventions on ARM. The conventions on ARM and 6087 IA-32 now match. 6088 6089 Removed static initializers for flags and counters. 6090 6091 Improved inline caching behavior for uncommon cases where lazily 6092 loading Date and RegExp code could force certain code paths go 6093 megamorphic. 6094 6095 Removed arguments adaption for builtins written in C++. This 6096 makes Array.prototype.push and Array.prototype.pop slightly 6097 faster. 6098 6099 6100 2008-09-11: Version 0.3.1 6101 6102 Fixed a number of build issues. 6103 6104 Fixed problem with missing I-cache flusing on ARM. 6105 6106 Changed space layout in memory management by splitting up 6107 code space into old data space and code space. 6108 6109 Added utf-8 conversion support to the API (issue 57). 6110 6111 Optimized repeated calls to eval with the same strings. These 6112 repeated calls are common in web applications. 6113 6114 Added Xcode project file. 6115 6116 Optimized a couple of Array operation. 6117 6118 Fixed parser bug by checking for end-of-string when parsing break 6119 and continue (issue 35). 6120 6121 Fixed problem where asian characters were not categorized as 6122 letters. 6123 6124 Fixed bug that disallowed calling functions fetched from an array 6125 using a string as an array index (issue 32). 6126 6127 Fixed bug where the internal field count on object templates were 6128 sometimes ignored (issue 54). 6129 6130 Added -f option to the shell sample for compatibility with other 6131 engines (issue 18). 6132 6133 Added source info to TryCatches in the API. 6134 6135 Fixed problem where the seed for the random number generator was 6136 clipped in a double to unsigned int conversion. 6137 6138 Fixed bug where cons string symbols were sometimes converted to 6139 non-symbol flat strings during GC. 6140 6141 Fixed bug in error reporting when attempting to convert null to an 6142 object. 6143 6144 6145 2008-09-04: Version 0.3.0 6146 6147 Added support for running tests on the ARM simulator. 6148 6149 Fixed bug in the 'in' operator where negative indices were not 6150 treated correctly. 6151 6152 Fixed build issues on gcc-4.3.1. 6153 6154 Changed Date.prototype.toLocaleTimeString to not print the 6155 timezone part of the time. 6156 6157 Renamed debug.h to v8-debug.h to reduce the risk of name conflicts 6158 with user code. 6159 6160 6161 2008-09-02: Version 0.2.5 6162 6163 Renamed the top level directory 'public' to 'include'. 6164 6165 Added 'env' option to the SCons build scripts to support 6166 overriding the ENV part of the build environment. This is mostly 6167 to support Windows builds in cases where SCons cannot find the 6168 correct paths to the Windows SDK, as these paths cannot be passed 6169 through shell environment variables. 6170 6171 Enabled "Buffer Security Check" on for the Windows SCons build and 6172 added the linker option /OPT:ICF as an optimization. 6173 6174 Added the V8 benchmark suite to the repository. 6175 6176 6177 2008-09-01: Version 0.2.4 6178 6179 Included mjsunit JavaScript test suite and C++ unit tests. 6180 6181 Changed the shell sample to not print the result of executing a 6182 script provided on the command line. 6183 6184 Fixed issue when building samples on Windows using a shared V8 6185 library. Added visibility option on Linux build which makes the 6186 generated library 18% smaller. 6187 6188 Changed build system to accept multiple build modes in one build 6189 and generate separate objects, libraries and executables for each 6190 mode. 6191 6192 Removed deferred negation optimization (a * -b => -(a * b)) since 6193 this visibly changes operand conversion order. 6194 6195 Improved parsing performance by introducing stack guard in 6196 preparsing. Without a stack guard preparsing always bails out 6197 with stack overflow. 6198 6199 Changed shell sample to take flags directly from the command-line. 6200 Added API call that implements this. 6201 6202 Added load, quit and version functions to the shell sample so it's 6203 easier to run benchmarks and tests. 6204 6205 Fixed issue with building samples and cctests on 64-bit machines. 6206 6207 Fixed bug in the runtime system where the prototype chain was not 6208 always searched for a setter when setting a property that does not 6209 exist locally. 6210 6211 6212 2008-08-14: Version 0.2.3 6213 6214 Improved performance of garbage collection by moving the 6215 function that updates pointers during compacting collection 6216 into the updating visitor. This gives the compiler a better 6217 chance to inline and avoid a function call per (potential) 6218 pointer. 6219 6220 Extended the shell sample with a --runtime-flags option. 6221 6222 Added Visual Studio project files for the shell.cc and 6223 process.cc samples. 6224 6225 6226 2008-08-13: Version 0.2.2 6227 6228 Improved performance of garbage collection by changing the way 6229 we use the marking stack in the event of stack overflow during 6230 full garbage collection and by changing the way we mark roots. 6231 6232 Cleaned up ARM version by removing top of stack caching and by 6233 introducing push/pop elimination. 6234 6235 Cleaned up the way runtime functions are called to allow 6236 runtime calls with no arguments. 6237 6238 Changed Windows build options to make sure that exceptions are 6239 disabled and that optimization flags are enabled. 6240 6241 Added first version of Visual Studio project files. 6242 6243 6244 2008-08-06: Version 0.2.1 6245 6246 Improved performance of unary addition by avoiding runtime calls. 6247 6248 Fixed the handling of '>' and '<=' to use right-to-left conversion 6249 and left-to-right evaluation as specified by ECMA-262. 6250 6251 Fixed a branch elimination bug on the ARM platform where incorrect 6252 code was generated because of overly aggressive branch 6253 elimination. 6254 6255 Improved performance of code that repeatedly assigns the same 6256 function to the same property of different objects with the same 6257 map. 6258 6259 Untangled DEBUG and ENABLE_DISASSEMBLER defines. The disassembler 6260 no longer expects DEBUG to be defined. 6261 6262 Added platform-nullos.cc to serve as the basis for new platform 6263 implementations. 6264 6265 6266 2008-07-30: Version 0.2.0 6267 6268 Changed all text files to have native svn:eol-style. 6269 6270 Added a few samples and support for building them. The samples 6271 include a simple shell that can be used to benchmark and test V8. 6272 6273 Changed V8::GetVersion to return the version as a string. 6274 6275 Added source for lazily loaded scripts to snapshots and made 6276 serialization non-destructive. 6277 6278 Improved ARM support by fixing the write barrier code to use 6279 aligned loads and stores and by removing premature locals 6280 optimization that relied on broken support for callee-saved 6281 registers (removed). 6282 6283 Refactored the code for marking live objects during garbage 6284 collection and the code for allocating objects in paged 6285 spaces. Introduced an abstraction for the map word of a heap- 6286 allocated object and changed the memory allocator to allocate 6287 executable memory only for spaces that may contain code objects. 6288 6289 Moved StringBuilder to utils.h and ScopedLock to platform.h, where 6290 they can be used by debugging and logging modules. Added 6291 thread-safe message queues for dealing with debugger events. 6292 6293 Fixed the source code reported by toString for certain builtin 6294 empty functions and made sure that the prototype property of a 6295 function is enumerable. 6296 6297 Improved performance of converting values to condition flags in 6298 generated code. 6299 6300 Merged disassembler-{arch} files. 6301 6302 6303 2008-07-28: Version 0.1.4 6304 6305 Added support for storing JavaScript stack traces in a stack 6306 allocated buffer to make it visible in shallow core dumps. 6307 Controlled by the --preallocate-message-memory flag which is 6308 disabled by default. 6309 6310 6311 2008-07-25: Version 0.1.3 6312 6313 Fixed bug in JSObject::GetPropertyAttributePostInterceptor where 6314 map transitions would count as properties. 6315 6316 Allowed aliased eval invocations by treating them as evals in the 6317 global context. This may change in the future. 6318 6319 Added support for accessing the last entered context through the 6320 API and renamed Context::Current to Context::GetCurrent and 6321 Context::GetSecurityContext to Context::GetCurrentSecurityContext. 6322 6323 Fixed bug in the debugger that would cause the debugger scripts to 6324 be recursively loaded and changed all disabling of interrupts to 6325 be block-structured. 6326 6327 Made snapshot data read-only to allow it to be more easily shared 6328 across multiple users of V8 when linked as a shared library. 6329 6330 6331 2008-07-16: Version 0.1.2 6332 6333 Fixed building on Mac OS X by recognizing i386 and friends as 6334 IA-32 platforms. 6335 6336 Added propagation of stack overflow exceptions that occur while 6337 compiling nested functions. 6338 6339 Improved debugger with support for recursive break points and 6340 handling of exceptions that occur in the debugger JavaScript code. 6341 6342 Renamed GetInternal to GetInternalField and SetInternal to 6343 SetInternalField in the API and moved InternalFieldCount and 6344 SetInternalFieldCount from FunctionTemplate to ObjectTemplate. 6345 6346 6347 2008-07-09: Version 0.1.1 6348 6349 Fixed bug in stack overflow check code for IA-32 targets where a 6350 non-tagged value in register eax was pushed to the stack. 6351 6352 Fixed potential quadratic behavior when converting strings to 6353 numbers. 6354 6355 Fixed bug where the return value from Object::SetProperty could 6356 end up being the property holder instead of the written value. 6357 6358 Improved debugger support by allowing nested break points and by 6359 dealing with stack-overflows when compiling functions before 6360 setting break points in them. 6361 6362 6363 2008-07-03: Version 0.1.0 6364 6365 Initial export. 6366 6367 # Local Variables: 6368 # mode:text 6369 # End: 6370
