blob: e603b8ad24d4e7b81c4ff0b88362934595cfe3b1 [file] [log] [blame]
kasperl@chromium.orge959c182009-07-27 08:59:04 +000012009-07-27: Version 1.3.0
2
3 Allowed RegExp objects to be called as functions (issue 132).
4
5 Fixed issue where global property cells would escape after
6 detaching the global object; see http://crbug.com/16276.
7
8 Added support for stepping into setters and getters in the
9 debugger.
10
11 Changed the debugger to avoid stopping in its own JavaScript code
12 and in the code of built-in functions.
13
14 Fixed issue 345 by avoiding duplicate escaping labels.
15
16 Fixed ARM code generator crash in short-circuited boolean
17 expressions and added regression tests.
18
19 Added an external allocation limit to avoid issues where small V8
20 objects would hold on to large amounts of external memory without
21 causing garbage collections.
22
23 Finished more of the inline caching stubs for x64 targets.
24
25
kasperl@chromium.orgdefbd102009-07-13 14:04:26 +0000262009-07-13: Version 1.2.14
27
28 Added separate paged heap space for global property cells and
29 avoid updating the write barrier when storing into them.
30
31 Improved peep-hole optimization on ARM platforms by not emitting
32 unnecessary debug information.
33
34 Re-enabled ICs for loads and calls that skip a global object
35 during lookup through the prototype chain.
36
37 Allowed access through global proxies to use ICs.
38
39 Fixed issue 401.
40
41
kasperl@chromium.org68ac0092009-07-09 06:00:35 +0000422009-07-09: Version 1.2.13
43
44 Fixed issue 397, issue 398, and issue 399.
45
46 Added support for breakpoint groups.
47
48 Fixed bugs introduced with the new global object representation.
49
50 Fixed a few bugs in the ARM code generator.
51
52
kasperl@chromium.org86f77b72009-07-06 08:21:57 +0000532009-07-06: Version 1.2.12
54
55 Added stack traces collection to Error objects accessible through
56 the e.stack property.
57
58 Changed RegExp parser to use a recursive data structure instead of
59 stack-based recursion.
60
61 Optimized Date object construction and string concatenation.
62
63 Improved performance of div, mod, and mul on ARM platforms.
64
65
kasperl@chromium.org2abc4502009-07-02 07:00:29 +0000662009-07-02: Version 1.2.11
67
68 Improved performance on IA-32 and ARM.
69
70 Fixed profiler sampler implementation on Mac OS X.
71
72 Changed the representation of global objects to improve
73 performance of adding a lot of new properties.
74
75
ager@chromium.org3e875802009-06-29 08:26:34 +0000762009-06-29: Version 1.2.10
77
78 Improved debugger support.
79
80 Fixed bug in exception message reporting (issue 390).
81
82 Improved overall performance.
83
84
ager@chromium.org5aa501c2009-06-23 07:57:28 +0000852009-06-23: Version 1.2.9
86
87 Improved math performance on ARM.
88
89 Fixed profiler name-inference bug.
90
91 Fixed handling of shared libraries in the profiler tick processor
92 scripts.
93
94 Fixed handling of tests that time out in the test scripts.
95
96 Fixed compilation on MacOS X version 10.4.
97
98 Fixed two bugs in the regular expression engine.
99
100 Fixed a bug in the string type inference.
101
102 Fixed a bug in the handling of 'constant function' properties.
103
104 Improved overall performance.
105
106
ager@chromium.orgeadaf222009-06-16 09:43:10 +00001072009-06-16: Version 1.2.8
108
109 Optimized math on ARM platforms.
110
111 Fixed two crash bugs in the handling of getters and setters.
112
113 Improved the debugger support by adding scope chain information.
114
115 Improved the profiler support by compressing log data transmitted
116 to clients.
117
118 Improved overall performance.
119
120
ager@chromium.orge2902be2009-06-08 12:21:35 +00001212009-06-08: Version 1.2.7
122
123 Improved debugger and profiler support.
124
125 Reduced compilation time by improving the handling of deferred
126 code.
127
128 Optimized interceptor accesses where the property is on the object
129 on which the interceptors is attached.
130
131 Fixed compilation problem on GCC 4.4 by changing the stack
132 alignment to 16 bytes.
133
134 Fixed handle creation to follow stric aliasing rules.
135
136 Fixed compilation on FreeBSD.
137
138 Introduced API for forcing the deletion of a property ignoring
139 interceptors and attributes.
140
141
sgjesse@chromium.org755c5b12009-05-29 11:04:38 +00001422009-05-29: Version 1.2.6
143
144 Added a histogram recording hit rates at different levels of the
145 compilation cache.
146
147 Added stack overflow check for the RegExp analysis phase. Previously a
148 very long regexp graph could overflow the stack with recursive calls.
149
150 Use a dynamic buffer when collecting log events in memory.
151
152 Added start/stop events to the profiler log.
153
154 Fixed infinite loop which could happen when setting a debug break while
155 executing a RegExp compiled to native code.
156
157 Fixed handling of lastIndexOf called with negative index (issue 351).
158
159 Fixed irregular crash in profiler test (issue 358).
160
161 Fixed compilation issues with some versions of gcc.
162
163
kasperl@chromium.org71affb52009-05-26 05:44:31 +00001642009-05-26: Version 1.2.5
165
166 Fixed bug in initial boundary check for Boyer-Moore text
167 search (issue 349).
168
169 Fixed compilation issues with MinGW and gcc 4.3+ and added support
170 for armv7 and cortex-a8 architectures. Patches by Lei Zhang and
171 Craig Schlenter.
172
173 Added a script cache to the debugger.
174
175 Optimized compilation performance by improving internal data
176 structures and avoiding expensive property load optimizations for
177 code that's infrequently executed.
178
179 Exposed the calling JavaScript context through the static API
180 function Context::GetCalling().
181
182
kasperl@chromium.orgb3284ad2009-05-18 06:12:45 +00001832009-05-18: Version 1.2.4
184
185 Improved performance of floating point number allocation for ARM
186 platforms.
187
188 Fixed crash when using the instanceof operator on functions with
189 number values in their prototype chain (issue 341).
190
191 Optimized virtual frame operations in the code generator to speed
192 up compilation time and allocated the frames in the zone.
193
194 Made the representation of virtual frames and jump targets in the
195 code generator much more compact.
196
197 Avoided linear search for non-locals in scope code when resolving
198 variables inside with and eval scopes.
199
200 Optimized lexical scanner by dealing with whitespace as part of
201 the token scanning instead of as a separate step before it.
202
203 Changed the scavenging collector so that promoted objects do not
204 reside in the old generation while their remembered set is being
205 swept for pointers into the young generation.
206
207 Fixed numeric overflow handling when compiling count operations.
208
209
ager@chromium.org9085a012009-05-11 19:22:57 +00002102009-05-11: Version 1.2.3
211
212 Fixed bug in reporting of out-of-memory situations.
213
214 Introduced hidden prototypes on certain builtin prototype objects
215 such as String.prototype to emulate JSC's behavior of restoring
216 the original function when deleting functions from those prototype
217 objects.
218
219 Fixed crash bug in the register allocator.
220
221
ager@chromium.org5ec48922009-05-05 07:25:34 +00002222009-05-04: Version 1.2.2
223
224 Fixed bug in array sorting for sparse arrays (issue 326).
225
226 Added support for adding a soname when building a shared library
227 on Linux (issue 151).
228
229 Fixed bug caused by morphing internal ASCII strings to external
230 two-byte strings. Slices over ASCII strings have to forward ASCII
231 checks to the underlying buffer string.
232
233 Allowed API call-as-function handlers to be called as
234 constructors.
235
236 Fixed a crash bug where an external string was disposed but a
237 slice of the external string survived as a symbol.
238
239
ager@chromium.org3a37e9b2009-04-27 09:26:21 +00002402009-04-27: Version 1.2.1
241
242 Added EcmaScript 5 JSON object.
243
244 Fix bug in preemption support on ARM.
245
246
ager@chromium.org65dad4b2009-04-23 08:48:43 +00002472009-04-23: Version 1.2.0
248
249 Optimized floating-point operations on ARM.
250
251 Added a number of extensions to the debugger API.
252
253 Changed the enumeration order for unsigned integer keys to always
254 be numerical order.
255
256 Added a "read" extension to the shell sample.
257
258 Added support for Array.prototype.reduce and
259 Array.prototype.reduceRight.
260
261 Added an option to the SCons build to control Microsoft Visual C++
262 link-time code generation.
263
264 Fixed a number of bugs (in particular issue 315, issue 316,
265 issue 317 and issue 318).
266
267
kasperl@chromium.org2d18d102009-04-15 13:27:32 +00002682009-04-15: Version 1.1.10
269
270 Fixed crash bug that occurred when loading a const variable in the
271 presence of eval.
272
273 Allowed using with and eval in registered extensions in debug mode
274 by fixing bogus assert.
275
276 Fixed the source position for function returns to enable the
277 debugger to break there.
278
279
kasperl@chromium.orgd1e3e722009-04-14 13:38:25 +00002802009-04-14: Version 1.1.9
281
282 Made the stack traversal code in the profiler robust by avoiding
283 to look into the heap.
284
285 Added name inferencing for anonymous functions to facilitate
286 debugging and profiling.
287
288 Re-enabled stats timers in the developer shell (d8).
289
290 Fixed issue 303 by avoiding to shortcut cons-symbols.
291
292
kasperl@chromium.orgacae3782009-04-11 09:17:08 +00002932009-04-11: Version 1.1.8
294
295 Changed test-debug/ThreadedDebugging to be non-flaky (issue 96).
296
ager@chromium.org65dad4b2009-04-23 08:48:43 +0000297 Fixed step-in handling for Function.prototype.apply and call in
kasperl@chromium.orgacae3782009-04-11 09:17:08 +0000298 the debugger (issue 269).
299
300 Fixed v8::Object::DeleteHiddenValue to not bail out when there
301 are no hidden properties.
302
ager@chromium.org65dad4b2009-04-23 08:48:43 +0000303 Added workaround for crash bug, where external symbol table
kasperl@chromium.orgacae3782009-04-11 09:17:08 +0000304 entries with deleted resources would lead to NPEs when looking
305 up in the symbol table.
306
307
kasperl@chromium.org8ccb0be2009-04-07 07:21:39 +00003082009-04-07: Version 1.1.7
309
310 Added support for easily importing additional environment
311 variables into the SCons build.
312
313 Optimized strict equality checks.
314
315 Fixed crash in indexed setters on objects without a corresponding
316 getter (issue 298).
317
318 Re-enabled script compilation cache.
319
320
ager@chromium.org8682a592009-04-01 10:47:14 +00003212009-04-01: Version 1.1.6
322
323 Reverted an unsafe code generator change.
324
325
ager@chromium.org71daaf62009-04-01 07:22:49 +00003262009-04-01: Version 1.1.5
327
328 Fixed bug that caused function literals to not be optimized as
329 much as other functions.
330
331 Improved profiler support.
332
333 Fixed a crash bug in connection with debugger unloading.
334
335 Fixed a crash bug in the code generator caused by losing the
336 information that a frame element was copied.
337
338 Fixed an exception propagation bug that could cause non-null
339 return values when exceptions were thrown.
340
341
ager@chromium.org41826e72009-03-30 13:30:57 +00003422009-03-30: Version 1.1.4
343
344 Optimized String.prototype.match.
345
346 Improved the stack information in profiles.
347
348 Fixed bug in ARM port making it possible to compile the runtime
349 system for thumb mode again.
350
351 Implemented a number of optimizations in the code generator.
352
353 Fixed a number of memory leaks in tests.
354
355 Fixed crash bug in connection with script source code and external
kasperl@chromium.org8ccb0be2009-04-07 07:21:39 +0000356 strings.
ager@chromium.org41826e72009-03-30 13:30:57 +0000357
358
kasperl@chromium.orgf5aa8372009-03-24 14:47:14 +00003592009-03-24: Version 1.1.3
360
361 Fixed assertion failures in compilation of loop conditions.
362
363 Removed STL dependency from developer shell (d8).
364
365 Added infrastructure for protecting the V8 heap from corruption
366 caused by memory modifications from the outside.
367
368
ager@chromium.orgbb29dc92009-03-24 13:25:23 +00003692009-03-24: Version 1.1.2
370
371 Improved frame merge code generated by the code generator.
372
373 Optimized String.prototype.replace.
374
375 Implemented __defineGetter__ and __defineSetter__ for properties
376 with integer keys on non-array objects.
377
378 Improved debugger and profiler support.
379
380 Fixed a number of portability issues to allow compilation for
381 smaller ARM devices.
382
383 Exposed object cloning through the API.
384
385 Implemented hidden properties. This is used to expose an identity
386 hash for objects through the API.
387
388 Implemented restarting of regular expressions if their input
389 string changes representation during preemption.
390
391 Fixed a code generator bug that could cause assignments in loops
392 to be ignored if using continue to break out of the loop (issue
393 284).
394
395
ager@chromium.org3a6061e2009-03-12 14:24:36 +00003962009-03-12: Version 1.1.1
397
398 Fixed an assertion in the new compiler to take stack overflow
399 exceptions into account.
400
401 Removed exception propagation code that could cause crashes.
402
403 Fixed minor bug in debugger line number computations.
404
405 8-byte align the C stack on Linux and Windows to speed up floating
406 point computations.
407
408
kasperl@chromium.org7be3c992009-03-12 07:19:55 +00004092009-03-12: Version 1.1.0
410
411 Improved code generation infrastructure by doing simple register
412 allocation and constant folding and propagation.
413
414 Optimized regular expression matching by avoiding to create
415 intermediate string arrays and by flattening nested array
416 representations of RegExp data.
417
418 Traverse a few stack frames when recording profiler samples to
419 include partial call graphs in the profiling output.
420
421 Added support for using OProfile to profile generated code.
422
423 Added remote debugging support to the D8 developer shell.
424
425 Optimized creation of nested literals like JSON objects.
426
427 Fixed a bug in garbage collecting unused maps and turned it on by
428 default (--collect-maps).
429
430 Added support for running tests under Valgrind.
431
432
kasperl@chromium.org061ef742009-02-27 12:16:20 +00004332009-02-27: Version 1.0.3
434
435 Optimized double-to-integer conversions in bit operations by using
436 SSE3 instructions if available.
437
438 Optimized initialization sequences that store to multiple
439 properties of the same object.
440
441 Changed the D8 debugger frontend to use JSON messages.
442
443 Force garbage collections when disposing contexts.
444
445 Align code objects at 32-byte boundaries.
446
447
ager@chromium.org381abbb2009-02-25 13:23:22 +00004482009-02-25: Version 1.0.2
449
450 Improved profiling support by performing simple call stack
451 sampling for ticks and by fixing a bug in the logging of code
452 addresses.
453
454 Fixed a number of debugger issues.
455
456 Optimized code that uses eval.
457
458 Fixed a couple of bugs in the regular expression engine.
459
460 Reduced the size of generated code for certain regular expressions.
461
462 Removed JSCRE completely.
463
464 Fixed issue where test could not be run if there was a dot in the
465 checkout path.
466
467
ager@chromium.org6f10e412009-02-13 10:11:16 +00004682009-02-13: Version 1.0.1
469
470 Fixed two crash-bugs in irregexp (issue 231 and 233).
471
472 Fixed a number of minor bugs (issue 87, 227 and 228).
473
474 Added support for morphing strings to external strings on demand
475 to avoid having to create copies in the embedding code.
476
477 Removed experimental support for external symbol callbacks.
478
479
iposva@chromium.org245aa852009-02-10 00:49:54 +00004802009-02-09: Version 1.0.0
481
482 Fixed crash-bug in the code generation for case independent 16 bit
483 backreferences.
ager@chromium.org6f10e412009-02-13 10:11:16 +0000484
iposva@chromium.org245aa852009-02-10 00:49:54 +0000485 Made shells more robust in the presence of string conversion
486 failures (issue 224).
ager@chromium.org6f10e412009-02-13 10:11:16 +0000487
iposva@chromium.org245aa852009-02-10 00:49:54 +0000488 Fixed a potential infinite loop when attempting to resolve
489 eval (issue 221).
ager@chromium.org6f10e412009-02-13 10:11:16 +0000490
iposva@chromium.org245aa852009-02-10 00:49:54 +0000491 Miscellaneous fixes to the new regular expression engine.
ager@chromium.org6f10e412009-02-13 10:11:16 +0000492
iposva@chromium.org245aa852009-02-10 00:49:54 +0000493 Reduced binary by stripping unneeded text from JavaScript library and
494 minifying some JavaScript files.
495
496
ager@chromium.orgddb913d2009-01-27 10:01:48 +00004972009-01-27: Version 0.4.9
498
499 Enabled new regular expression engine.
500
501 Made a number of changes to the debugger protocol.
502
503 Fixed a number of bugs in the preemption support.
504
505 Added -p option to the developer shell to run files in parallel
506 using preemption.
507
508 Fixed a number of minor bugs (including issues 176, 187, 189, 192,
509 193, 198 and 201).
510
511 Fixed a number of bugs in the serialization/deserialization
512 support for the ARM platform.
513
514
sgjesse@chromium.org715915b2009-01-19 16:08:47 +00005152009-01-19: Version 0.4.8.1
516
517 Minor patch to debugger support.
518
519
ager@chromium.org32912102009-01-16 10:38:43 +00005202009-01-16: Version 0.4.8
521
522 Fixed string length bug on ARM (issue 171).
523
524 Made most methods in the API const.
525
526 Optimized object literals by improving data locality.
527
528 Fixed bug that caused incomplete functions to be cached in case of
sgjesse@chromium.org715915b2009-01-19 16:08:47 +0000529 stack overflow exceptions.
ager@chromium.org32912102009-01-16 10:38:43 +0000530
531 Fixed bugs that caused catch variables and variables introduced by
sgjesse@chromium.org715915b2009-01-19 16:08:47 +0000532 eval to behave incorrectly when using accessors (issues 186, 190
533 and 191).
ager@chromium.org32912102009-01-16 10:38:43 +0000534
535
christian.plesner.hansen@gmail.com37abdec2009-01-06 14:43:28 +00005362009-01-06: Version 0.4.7
537
ager@chromium.org32912102009-01-16 10:38:43 +0000538 Minor bugfixes and optimizations.
christian.plesner.hansen@gmail.com37abdec2009-01-06 14:43:28 +0000539
ager@chromium.org32912102009-01-16 10:38:43 +0000540 Added command line debugger to D8 shell.
christian.plesner.hansen@gmail.com37abdec2009-01-06 14:43:28 +0000541
ager@chromium.org32912102009-01-16 10:38:43 +0000542 Fixed subtle bug that caused the wrong 'this' to be used when
543 calling a caught function in a catch clause.
christian.plesner.hansen@gmail.com37abdec2009-01-06 14:43:28 +0000544
ager@chromium.org32912102009-01-16 10:38:43 +0000545 Inline array loads within loops directly in the code instead of
546 always calling a stub.
christian.plesner.hansen@gmail.com37abdec2009-01-06 14:43:28 +0000547
ager@chromium.org32912102009-01-16 10:38:43 +0000548
ager@chromium.org8bb60582008-12-11 12:02:20 +00005492008-12-11: Version 0.4.6
550
551 Fixed exception reporting bug where certain exceptions were
552 incorrectly reported as uncaught.
553
554 Improved the memory allocation strategy used during compilation to
555 make running out of memory when compiling huge scripts less
556 likely.
557
558 Optimized String.replace by avoiding the construction of certain
559 sub strings.
560
561 Fixed bug in code generation for large switch statements on ARM.
562
563 Fixed bug that caused V8 to change the global object template
564 passed in by the user.
565
566 Changed the API for creating object groups used during garbage
567 collection. Entire object groups are now passed to V8 instead of
568 individual members of the groups.
569
ager@chromium.org32912102009-01-16 10:38:43 +0000570
ager@chromium.orga74f0da2008-12-03 16:05:52 +00005712008-12-03: Version 0.4.5
iposva@chromium.org96f667e2008-11-26 23:48:02 +0000572
ager@chromium.orga74f0da2008-12-03 16:05:52 +0000573 Added experimental API support for allocating V8 symbols as
574 external strings.
575
576 Fixed bugs in debugging support on ARM.
577
578 Changed eval implementation to correctly detect whether or not a
579 call to eval is aliased.
580
581 Fixed bug caused by a combination of the compilation cache and
582 dictionary probing in native code. The bug caused us to sometimes
583 call functions that had not yet been compiled.
584
585 Added platform support for FreeBSD.
586
587 Added support for building V8 on Windows with either the shared or
588 static version of MSVCRT
ager@chromium.org32912102009-01-16 10:38:43 +0000589
iposva@chromium.org96f667e2008-11-26 23:48:02 +0000590 Added the v8::jscre namespace around the jscre functions to avoid
591 link errors (duplicate symbols) when building Google Chrome.
592
ager@chromium.orga74f0da2008-12-03 16:05:52 +0000593 Added support for calling a JavaScript function with the current
594 debugger execution context as its argument to the debugger
595 interface.
596
597 Changed the type of names of counters from wchar_t to char.
598
599 Changed the Windows system call used to compute daylight savings
600 time. The system call that we used to use became four times
601 slower on WinXP SP3.
602
603 Added support in the d8 developer shell for memory-mapped counters
604 and added a stats-viewer tool.
605
606 Fixed bug in upper/lower case mappings (issue 149).
607
iposva@chromium.org96f667e2008-11-26 23:48:02 +0000608
ager@chromium.org3bf7b912008-11-17 09:09:45 +00006092008-11-17: Version 0.4.4
610
611 Reduced code size by using shorter instruction encoding when
612 possible.
613
614 Added a --help option to the shell sample and to the d8 shell.
615
616 Added visual studio project files for building the ARM simulator.
617
618 Fixed a number of ARM simulator issues.
619
620 Fixed bug in out-of-memory handling on ARM.
621
622 Implemented shell support for passing arguments to a script from
623 the command line.
624
625 Fixed bug in date code that made certain date functions return -0
626 instead of 0 for dates before the epoch.
627
628 Restricted applications of eval so it can only be used in the
629 context of the associated global object.
630
631 Treat byte-order marks as whitespace characters.
ager@chromium.org32912102009-01-16 10:38:43 +0000632
633
ager@chromium.org870a0b62008-11-04 11:43:05 +00006342008-11-04: Version 0.4.3
635
636 Added support for API accessors that prohibit overwriting by
637 accessors defined in JavaScript code by using __defineGetter__ and
638 __defineSetter__.
639
640 Improved handling of conditionals in test status files.
641
642 Introduced access control in propertyIsEnumerable.
643
644 Improved performance of some string operations by caching
645 information about the type of the string between operations.
646
647 Fixed bug in fast-case code for switch statements that only have
648 integer labels.
ager@chromium.org32912102009-01-16 10:38:43 +0000649
ager@chromium.org870a0b62008-11-04 11:43:05 +0000650
kasperl@chromium.org9bbf9682008-10-30 11:53:07 +00006512008-10-30: Version 0.4.2
652
653 Improved performance of Array.prototype.concat by moving the
654 implementation to C++ (issue 123).
655
656 Fixed heap growth policy to avoid growing old space to its maximum
657 capacity before doing a garbage collection and fixed issue that
658 would lead to artificial out of memory situations (issue 129).
659
660 Fixed Date.prototype.toLocaleDateString to return the date in the
661 same format as WebKit.
662
663 Added missing initialization checks to debugger API.
664
665 Added removing of unused maps during GC.
666
667
kasperl@chromium.org9fe21c62008-10-28 08:53:51 +00006682008-10-28: Version 0.4.1
669
670 Added caching of RegExp data in compilation cache.
671
672 Added Visual Studio project file for d8 shell.
673
674 Fixed function call performance regression introduced in version
675 0.4.0 when splitting the global object in two parts (issue 120).
676
677 Fixed issue 131 by checking for empty handles before throwing and
678 reporting exceptions.
679
680
kasperl@chromium.org5a8ca6c2008-10-23 13:57:19 +00006812008-10-23: Version 0.4.0
682
683 Split the global object into two parts: The state holding global
684 object and the global object proxy.
685
686 Fixed bug that affected the value of an assignment to an element
687 in certain cases (issue 116).
688
689 Added GetPropertyNames functionality (issue 33) and extra Date
690 functions (issue 77) to the API.
691
692 Changed WeakReferenceCallback to take a Persistent<Value> instead
693 of a Persistent<Object> (issue 101).
694
695 Fixed issues with message reporting for exceptions in try-finally
696 blocks (issues 73 and 75).
697
ager@chromium.org32912102009-01-16 10:38:43 +0000698 Optimized flattening of strings and string equality checking.
kasperl@chromium.org5a8ca6c2008-10-23 13:57:19 +0000699
700 Improved Boyer-Moore implementation for faster indexOf operations.
701
702 Added development shell (d8) which includes counters and
703 completion support.
704
705 Fixed problem with the receiver passed to functions called from
706 eval (issue 124).
707
708
ager@chromium.org7c537e22008-10-16 08:43:32 +00007092008-10-16: Version 0.3.5
710
711 Improved string hash-code distribution by excluding bit-field bits
712 from the hash-code.
713
714 Changed string search algorithm used in indexOf from KMP to
715 Boyer-Moore.
716
717 Improved the generated code for the instanceof operator.
718
719 Improved performance of slow-case string equality checks by
720 specializing the code based on the string representation.
721
722 Improve the handling of out-of-memory situations (issue 70).
723
724 Improved performance of strict equality checks.
725
726 Improved profiler output to make it easier to see anonymous
727 functions.
728
729 Improved performance of slow-case keyed loads.
730
731 Improved property access performance by allocating a number of
732 properties in the front object.
733
734 Changed the toString behavior on the built-in object constructors
735 to print [native code] instead of the actual source. Some web
736 applications do not like constructors with complex toString
737 results.
ager@chromium.org32912102009-01-16 10:38:43 +0000738
ager@chromium.org7c537e22008-10-16 08:43:32 +0000739
kasperl@chromium.org41044eb2008-10-06 08:24:46 +00007402008-10-06: Version 0.3.4
741
742 Changed Array.prototype.sort to use quick sort.
743
744 Fixed code generation issue where leaving a finally block with
745 break or continue would accumulate elements on the expression
746 stack (issue 86).
747
748 Made sure that the name accessor on functions returns the expected
749 names for builtin JavaScript functions and C++ callback functions.
750
751 Added fast case code for extending the property storage array of
752 JavaScript objects.
753
754 Ported switch statement optimizations introduced in version 0.3.3
755 to the ARM code generator.
756
757 Allowed GCC to use strict-aliasing rules when compiling.
758
759 Improved performance of arguments object allocation by taking care
760 of arguments adaptor frames in the generated code.
761
762 Updated the V8 benchmark suite to version 2.
763
764
ager@chromium.org236ad962008-09-25 09:45:57 +00007652008-09-25: Version 0.3.3
766
767 Improved handling of relocation information to enable more
768 peep-hole optimizations.
769
770 Optimized switch statements where all labels are constant small
771 integers.
772
773 Optimized String.prototype.indexOf for common cases.
774
775 Fixed more build issues (issue 80).
776
777 Fixed a couple of profiler issues.
778
779 Fixed bug where the body of a function created using the Function
780 constructor was not allowed to end with a single-line comment
781 (issue 85).
782
783 Improved handling of object literals by canonicalizing object
784 literal maps. This will allow JSON objects with the same set of
785 properties to share the same map making inline caching work better
786 for JSON objects.
ager@chromium.org32912102009-01-16 10:38:43 +0000787
ager@chromium.org236ad962008-09-25 09:45:57 +0000788
kasperl@chromium.orgb9123622008-09-17 14:05:56 +00007892008-09-17: Version 0.3.2
790
791 Generalized the EvalCache into a CompilationCache and enabled it
792 for scripts too. The current strategy is to retire all entries
793 whenever a mark-sweep collection is started.
794
795 Fixed bug where switch statements containing only a default case
796 would lead to an unbalanced stack (issue 69).
797
798 Fixed bug that made access to the function in a named function
799 expression impossible in certain situations (issue 24).
800
801 Fixed even more build issues.
802
803 Optimized calling conventions on ARM. The conventions on ARM and
804 IA-32 now match.
805
806 Removed static initializers for flags and counters.
807
808 Improved inline caching behavior for uncommon cases where lazily
809 loading Date and RegExp code could force certain code paths go
810 megamorphic.
811
812 Removed arguments adaption for builtins written in C++. This
813 makes Array.prototype.push and Array.prototype.pop slightly
814 faster.
815
816
ager@chromium.org9258b6b2008-09-11 09:11:10 +00008172008-09-11: Version 0.3.1
818
819 Fixed a number of build issues.
820
821 Fixed problem with missing I-cache flusing on ARM.
822
823 Changed space layout in memory management by splitting up
824 code space into old data space and code space.
825
826 Added utf-8 conversion support to the API (issue 57).
827
828 Optimized repeated calls to eval with the same strings. These
829 repeated calls are common in web applications.
830
831 Added Xcode project file.
832
833 Optimized a couple of Array operation.
834
835 Fixed parser bug by checking for end-of-string when parsing break
836 and continue (issue 35).
837
838 Fixed problem where asian characters were not categorized as
839 letters.
840
841 Fixed bug that disallowed calling functions fetched from an array
842 using a string as an array index (issue 32).
843
844 Fixed bug where the internal field count on object templates were
845 sometimes ignored (issue 54).
846
847 Added -f option to the shell sample for compatibility with other
848 engines (issue 18).
849
850 Added source info to TryCatches in the API.
851
852 Fixed problem where the seed for the random number generator was
853 clipped in a double to unsigned int conversion.
854
855 Fixed bug where cons string symbols were sometimes converted to
856 non-symbol flat strings during GC.
857
858 Fixed bug in error reporting when attempting to convert null to an
859 object.
ager@chromium.org32912102009-01-16 10:38:43 +0000860
861
ager@chromium.orgc27e4e72008-09-04 13:52:27 +00008622008-09-04: Version 0.3.0
863
864 Added support for running tests on the ARM simulator.
865
866 Fixed bug in the 'in' operator where negative indices were not
867 treated correctly.
868
869 Fixed build issues on gcc-4.3.1.
870
871 Changed Date.prototype.toLocaleTimeString to not print the
872 timezone part of the time.
873
874 Renamed debug.h to v8-debug.h to reduce the risk of name conflicts
875 with user code.
876
877
v8.team.kasperl727e9952008-09-02 14:56:44 +00008782008-09-02: Version 0.2.5
879
880 Renamed the top level directory 'public' to 'include'.
881
882 Added 'env' option to the SCons build scripts to support
883 overriding the ENV part of the build environment. This is mostly
884 to support Windows builds in cases where SCons cannot find the
885 correct paths to the Windows SDK, as these paths cannot be passed
886 through shell environment variables.
887
888 Enabled "Buffer Security Check" on for the Windows SCons build and
889 added the linker option /OPT:ICF as an optimization.
890
891 Added the V8 benchmark suite to the repository.
892
893
mads.s.ager@gmail.com9a4089a2008-09-01 08:55:01 +00008942008-09-01: Version 0.2.4
895
896 Included mjsunit JavaScript test suite and C++ unit tests.
897
898 Changed the shell sample to not print the result of executing a
899 script provided on the command line.
900
901 Fixed issue when building samples on Windows using a shared V8
902 library. Added visibility option on Linux build which makes the
903 generated library 18% smaller.
904
905 Changed build system to accept multiple build modes in one build
906 and generate separate objects, libraries and executables for each
907 mode.
908
909 Removed deferred negation optimization (a * -b => -(a * b)) since
910 this visibly changes operand conversion order.
911
912 Improved parsing performance by introducing stack guard in
913 preparsing. Without a stack guard preparsing always bails out
914 with stack overflow.
915
916 Changed shell sample to take flags directly from the command-line.
917 Added API call that implements this.
918
919 Added load, quit and version functions to the shell sample so it's
920 easier to run benchmarks and tests.
921
922 Fixed issue with building samples and cctests on 64-bit machines.
923
924 Fixed bug in the runtime system where the prototype chain was not
925 always searched for a setter when setting a property that does not
926 exist locally.
ager@chromium.org32912102009-01-16 10:38:43 +0000927
mads.s.ager@gmail.com9a4089a2008-09-01 08:55:01 +0000928
mads.s.agercbaa0602008-08-14 13:41:48 +00009292008-08-14: Version 0.2.3
930
931 Improved performance of garbage collection by moving the
932 function that updates pointers during compacting collection
933 into the updating visitor. This gives the compiler a better
934 chance to inline and avoid a function call per (potential)
935 pointer.
936
937 Extended the shell sample with a --runtime-flags option.
938
939 Added Visual Studio project files for the shell.cc and
940 process.cc samples.
941
942
9432008-08-13: Version 0.2.2
mads.s.ager31e71382008-08-13 09:32:07 +0000944
945 Improved performance of garbage collection by changing the way
946 we use the marking stack in the event of stack overflow during
947 full garbage collection and by changing the way we mark roots.
948
949 Cleaned up ARM version by removing top of stack caching and by
950 introducing push/pop elimination.
951
952 Cleaned up the way runtime functions are called to allow
953 runtime calls with no arguments.
954
955 Changed Windows build options to make sure that exceptions are
956 disabled and that optimization flags are enabled.
957
958 Added first version of Visual Studio project files.
959
960
mads.s.agercbaa0602008-08-14 13:41:48 +00009612008-08-06: Version 0.2.1
mads.s.ager@gmail.com769cc962008-08-06 10:02:49 +0000962
963 Improved performance of unary addition by avoiding runtime calls.
964
965 Fixed the handling of '>' and '<=' to use right-to-left conversion
966 and left-to-right evaluation as specified by ECMA-262.
967
968 Fixed a branch elimination bug on the ARM platform where incorrect
969 code was generated because of overly aggressive branch
970 elimination.
971
972 Improved performance of code that repeatedly assigns the same
973 function to the same property of different objects with the same
974 map.
975
976 Untangled DEBUG and ENABLE_DISASSEMBLER defines. The disassembler
977 no longer expects DEBUG to be defined.
978
979 Added platform-nullos.cc to serve as the basis for new platform
980 implementations.
981
mads.s.ager31e71382008-08-13 09:32:07 +0000982
mads.s.agercbaa0602008-08-14 13:41:48 +00009832008-07-30: Version 0.2.0
kasper.lund7276f142008-07-30 08:49:36 +0000984
985 Changed all text files to have native svn:eol-style.
986
987 Added a few samples and support for building them. The samples
988 include a simple shell that can be used to benchmark and test V8.
989
990 Changed V8::GetVersion to return the version as a string.
991
992 Added source for lazily loaded scripts to snapshots and made
993 serialization non-destructive.
994
995 Improved ARM support by fixing the write barrier code to use
996 aligned loads and stores and by removing premature locals
997 optimization that relied on broken support for callee-saved
998 registers (removed).
999
1000 Refactored the code for marking live objects during garbage
1001 collection and the code for allocating objects in paged
1002 spaces. Introduced an abstraction for the map word of a heap-
1003 allocated object and changed the memory allocator to allocate
1004 executable memory only for spaces that may contain code objects.
1005
1006 Moved StringBuilder to utils.h and ScopedLock to platform.h, where
1007 they can be used by debugging and logging modules. Added
1008 thread-safe message queues for dealing with debugger events.
1009
1010 Fixed the source code reported by toString for certain builtin
1011 empty functions and made sure that the prototype property of a
1012 function is enumerable.
1013
1014 Improved performance of converting values to condition flags in
1015 generated code.
1016
1017 Merged disassembler-{arch} files.
1018
1019
mads.s.agercbaa0602008-08-14 13:41:48 +000010202008-07-28: Version 0.1.4
kasper.lundaf4734f2008-07-28 12:50:18 +00001021
1022 Added support for storing JavaScript stack traces in a stack
1023 allocated buffer to make it visible in shallow core dumps.
1024 Controlled by the --preallocate-message-memory flag which is
1025 disabled by default.
1026
1027
mads.s.agercbaa0602008-08-14 13:41:48 +000010282008-07-25: Version 0.1.3
kasper.lund44510672008-07-25 07:37:58 +00001029
1030 Fixed bug in JSObject::GetPropertyAttributePostInterceptor where
1031 map transitions would count as properties.
1032
1033 Allowed aliased eval invocations by treating them as evals in the
1034 global context. This may change in the future.
1035
1036 Added support for accessing the last entered context through the
1037 API and renamed Context::Current to Context::GetCurrent and
1038 Context::GetSecurityContext to Context::GetCurrentSecurityContext.
1039
1040 Fixed bug in the debugger that would cause the debugger scripts to
1041 be recursively loaded and changed all disabling of interrupts to
1042 be block-structured.
1043
1044 Made snapshot data read-only to allow it to be more easily shared
1045 across multiple users of V8 when linked as a shared library.
1046
1047
mads.s.agercbaa0602008-08-14 13:41:48 +000010482008-07-16: Version 0.1.2
kasper.lund212ac232008-07-16 07:07:30 +00001049
1050 Fixed building on Mac OS X by recognizing i386 and friends as
1051 IA-32 platforms.
1052
1053 Added propagation of stack overflow exceptions that occur while
1054 compiling nested functions.
1055
1056 Improved debugger with support for recursive break points and
1057 handling of exceptions that occur in the debugger JavaScript code.
1058
1059 Renamed GetInternal to GetInternalField and SetInternal to
1060 SetInternalField in the API and moved InternalFieldCount and
1061 SetInternalFieldCount from FunctionTemplate to ObjectTemplate.
1062
1063
mads.s.agercbaa0602008-08-14 13:41:48 +000010642008-07-09: Version 0.1.1
kasper.lundbd3ec4e2008-07-09 11:06:54 +00001065
1066 Fixed bug in stack overflow check code for IA-32 targets where a
1067 non-tagged value in register eax was pushed to the stack.
1068
1069 Fixed potential quadratic behavior when converting strings to
1070 numbers.
1071
1072 Fixed bug where the return value from Object::SetProperty could
1073 end up being the property holder instead of the written value.
1074
1075 Improved debugger support by allowing nested break points and by
1076 dealing with stack-overflows when compiling functions before
1077 setting break points in them.
1078
1079
mads.s.agercbaa0602008-08-14 13:41:48 +000010802008-07-03: Version 0.1.0
christian.plesner.hansen43d26ec2008-07-03 15:10:15 +00001081
kasper.lundbd3ec4e2008-07-09 11:06:54 +00001082 Initial export.
christian.plesner.hansen43d26ec2008-07-03 15:10:15 +00001083