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105 Commits

Author SHA1 Message Date
erik.corry@gmail.com
5d5cb0bfa8 Young space should be same size on snapshot builder and snapshot users 
because this gets backed into the generated code.
Review URL: http://codereview.chromium.org/151083

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2311 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-30 17:34:41 +00:00
sgjesse@chromium.org
a54a4ada5c Changed the global object representation.The global object is now always in dictionary (slow) mode with each of its properties stored in a cell object. A cell object has one field containing the actual value for the property. Inline caches for access to global properties which uses direct to the cell are now created for load, store and call to properties of the global object. When properties of the global object are deleted the cell for that property is kept with an indcation of that the property is deleted.Added counters to track the use of the global property inline caches.Added additional information on IC's in the disassembler. 
Review URL: http://codereview.chromium.org/151019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2300 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-30 10:05:36 +00:00
feng@chromium.org
9f252dad52 Workaround a gcc 4.4 bug. 
Gcc generates wrong vtable entries for certain code pattern. The change in heap.cc has detailed explanation.

Review URL: http://codereview.chromium.org/147022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2299 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-29 21:15:03 +00:00
bak@chromium.org
252514ca23 - Inlined the code for make simple cons strings. 
- Simplify generated code for Runtime_** functions.

Review URL: http://codereview.chromium.org/149068

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2283 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-26 13:09:50 +00:00
bak@chromium.org
ab3d1e1a43 Added descriptor lookup cache to eliminate some search overhead. 
Reduced the KeyedLookupCache length to 64.
Review URL: http://codereview.chromium.org/141046

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2239 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-22 14:29:35 +00:00
bak@chromium.org
c078783c36 Implemented a ContextSlotCache for compiled code. 
Review URL: http://codereview.chromium.org/141038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2230 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-22 08:09:57 +00:00
kasperl@chromium.org
5f5fbd4e4a Allow functions to have custom construct stubs that are called 
when the function is instantiated.
Review URL: http://codereview.chromium.org/132063

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2222 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-19 07:36:16 +00:00
bak@chromium.org
7dab62ee96 Changed allocation to allow large objects to be allocated in new space. 
This avoids back-to-back mark-sweep collections.

Review URL: http://codereview.chromium.org/136001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2219 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-18 14:06:36 +00:00
bak@chromium.org
1155ba8e8e Reimplemented the KeyedLookupCache to speed up access. 
Review URL: http://codereview.chromium.org/126262

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2195 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-17 06:07:49 +00:00
erik.corry@gmail.com
0fcf27bcb1 Make young space smaller on ARM. 
Review URL: http://codereview.chromium.org/126121

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2165 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-15 11:44:04 +00:00
bak@chromium.org
492705657a Changed the expansion of new space to depend on how much has survived scavenge. 
This replaces the fixed expansion policy based on number of scavenges.
Increased the max new space size to 8MB (only reserved space).
Increased the defalt new space size to 512KB.

Review URL: http://codereview.chromium.org/125046

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2151 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-12 11:11:04 +00:00
mikhail.naganov@gmail.com
d7cccf6b8d Add log compression ability. 
This is a trivial per-row compression:
- short aliases are introduced for events and code creation tags;
- in tick events, offsets are used instead of absolute addresses;
- removed 'code-allocation' event, as it seems not used.

The first two options are depend on the new flag: 'compress-log', which is off by default.

On benchmarks run w/o snapshot, this gives 45% log size reduction.

Review URL: http://codereview.chromium.org/119304


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2122 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-06-08 13:39:48 +00:00
iposva@chromium.org
34218e5540 - Introduce histograms collecting data about the number of set remembered set 
bits in a page.
Review URL: http://codereview.chromium.org/113819

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2045 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-25 16:33:00 +00:00
mikhail.naganov@gmail.com
30a0a7de43 Split nested namespaces declaration in two lines in accordance with C++ Style Guide. 
This issue was raised by Brett Wilson while reviewing my changelist for readability. Craig Silverstein (one of C++ SG maintainers) confirmed that we should declare one namespace per line. Our way of namespaces closing seems not violating style guides (there is no clear agreement on it), so I left it intact.

Review URL: http://codereview.chromium.org/115756


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2038 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-25 10:05:56 +00:00
lrn@chromium.org
e9f1a09f9d X64: Omitted creating native builtins and using them in test-heap. 
This allows test-heap to run successfully.

Review URL: http://codereview.chromium.org/115706


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2034 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-22 14:01:06 +00:00
lrn@chromium.org
0920be9524 X64: Disabled RSet in 64-bit mode. 
Made a few more places use intptr_t instead of int for pointer arithmetic.
Ensure that objects have a declared size that matches heap object alignment.

Review URL: http://codereview.chromium.org/115559


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2007 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-20 08:05:12 +00:00
sgjesse@chromium.org
94879a93b0 Add a script cache to the debugger 
When loaded scripts are requested this cache is filled with all the script objects in the heap. Hereafter its content is kept in sync with the active scripts in the heap through the notifications of new scripts compiled and by using weak handles to get notified when a script is collected.

Through the tracking of collected scripts the debugger event OnScriptCollected have been added to notify a debugger that a script previously returned through the scripts command is no longer in use.

Make the ComputeIntegerHash globally available.

Moved clearing of the mirror cache to when debugger is really left. Previously recursive invocations of the debugger cause the mirror cache to be cleared causing handles to become either stale or reference other objects.
Review URL: http://codereview.chromium.org/115462

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1988 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-18 13:14:37 +00:00
bak@chromium.org
81af5beefa Changed FuncNameInferrer and ScopeInfo to support zone allocation. 
Yields a 2% speedup when running compiler-benchmark.

Review URL: http://codereview.chromium.org/113519

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1985 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-18 09:41:16 +00:00
kmillikin@chromium.org
e097183f22 Fix debug builds. 
Review URL: http://codereview.chromium.org/113462

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1976 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-15 15:02:03 +00:00
kmillikin@chromium.org
566d088ee3 Fix debug build with a cast. 
TBR=bak@chromium.org


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1974 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-15 14:46:59 +00:00
kasperl@chromium.org
f9790085ed Revert r1971. Doesn't compile. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1972 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-15 14:39:34 +00:00
kmillikin@chromium.org
3c73ec8ac9 Change the scavenging collector so that promoted objects do not reside 
in the old generation while its remembered set is being swept for
pointers into the young generation.  This is done by delaying the
copying of promoted objects from when they are first encountered and
promoted to only when their body is visited.

Review URL: http://codereview.chromium.org/115086

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1971 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-15 13:52:14 +00:00
kmillikin@chromium.org
4bc0e7cf8c Reapply r1900, r1897, r1895 with a fix. 
When a paged space shrinks by an even multiple of the chunk size,
ensure that the cached last page in the space is updated.

Review URL: http://codereview.chromium.org/113267

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1944 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-14 08:55:34 +00:00
ager@chromium.org
00addb277a Revert r1900, r1897 and r1895 which are all gc changes. The changes 
to the page iterator leads to occasional crashes in tests.
Review URL: http://codereview.chromium.org/113262

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1915 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-12 13:02:15 +00:00
kmillikin@chromium.org
d6a506c66e Change the structure of the scavenge collector's loop. Move 
scavenging of objects pointed to by weak handles earlier.  Rename
"mark" => "front" and "top" => "rear" to make it clearer which end is
which.
Review URL: http://codereview.chromium.org/113097

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1900 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-07 12:36:18 +00:00
kmillikin@chromium.org
3299f63c0d Before a scavenge collection in debug builds with ENABLE_SLOW_ASSERTS, 
we verify that there are no pointers to new space from the code space.
Add the old data space to this verification.

Review URL: http://codereview.chromium.org/113095

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1897 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-07 10:43:33 +00:00
erik.corry@gmail.com
ad23017469 When strings can change from an ASCII representation to a 
UC16 representation we need to be careful about flat strings.
Flat strings can be sliced or cons strings that have a flat
string under them, so when we ask a flat cons or a slice whether
it is ASCII or not we should ask the underlying string about
its representation.  This should fix
http://code.google.com/p/chromium/issues/detail?id=10971
Review URL: http://codereview.chromium.org/100249

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1830 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-05-01 11:16:29 +00:00
christian.plesner.hansen@gmail.com
1f7e96743d - Extended lazy loading to general objects, not just functions. 
- Added lazily loaded JSON object.


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1784 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-24 08:13:09 +00:00
feng@chromium.org
ea48d53bad Add ENABLE_DEBUGGER_SUPPORT macro. 
ENABLE_DEBUGGER_SUPPORT is enabled by default unless it is on Android platform.
On Android platform, it can also enabled by passing -DENABLE_DEBUGGER_SUPPORT flag to the compiler.

This should not affect any existing build (I hope, cross my fingers) except the build in real Android environment (in other word, it only affects me now).

There are lot of room for code refactoring in stead of using #ifdef all over the place. I will leave this to v8 folks.

Review URL: http://codereview.chromium.org/77035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1745 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-20 16:36:13 +00:00
kasperl@chromium.org
66f7a367f7 Fix build issue on Mac. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1703 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-14 14:01:00 +00:00
kasperl@chromium.org
5decd39b51 Move STATIC_ASSERT to IsShortcutCandidate to fix the 
broken build.

TBR=ager@chromium.org
Review URL: http://codereview.chromium.org/67126

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1700 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-14 12:10:32 +00:00
kasperl@chromium.org
bca37da6af Verify the symbol table contents before and after all 
GCs (not just mark-compacts) and make the mark-compact
shortcutting of cons-strings identical to the scavenge
version.
Review URL: http://codereview.chromium.org/67125

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1699 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-14 12:00:56 +00:00
kasperl@chromium.org
850d5ed380 Fixed issue 303 by not shortcutting cons-symbols and added 
symbol table verification after mark-compact GCs.
Review URL: http://codereview.chromium.org/73029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1698 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-14 09:58:42 +00:00
mikhail.naganov@gmail.com
3c2a7bdf21 Add name inference for anonymous functions to facilitate debugging and profiling of JS code. 
Currently function name inference is wired with AST optimization pass to avoid introducing another pass over AST. A better solution would be to rewrite AST visitors so they can be naturally combined together in a single pass, as their current implementation doesn't allow it.

For examples of cases where function names can be inferred, see the tests file.

Review URL: http://codereview.chromium.org/62146

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1696 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-04-14 00:51:59 +00:00
kmillikin@chromium.org
d3ee29a7f6 Add just enough state changes from EXTERNAL (outside V8) to OTHER 
(generic state inside V8) in the API to allow the V8 shell to run all
the mjsunit tests with heap protection on.

These state changes are only taken when built with
ENABLE_HEAP_PROTECTION.  The two states OTHER and EXTERNAL are treated
the same because we will not properly reenter OTHER through the API.
Review URL: http://codereview.chromium.org/56060

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1643 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-03-30 13:32:28 +00:00
kmillikin@chromium.org
bc3fb11881 Add basic infrastructure for protecting V8's heap when leaving the VM 
and unprotecting it when (re)entering.  The functionality is enabled
by the flag --protect-heap and requires V8 to be built with
ENABLE_HEAP_PROTECTION and ENABLE_LOGGING_AND_PROFILING defined.

Implemented on Linux and Windows but not yet for other platforms.

Review URL: http://codereview.chromium.org/53004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1595 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-03-24 12:47:53 +00:00
ager@chromium.org
4d6b3a54ad Fix lint. 
TBR=iposva
Review URL: http://codereview.chromium.org/50026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1551 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-03-19 19:29:23 +00:00
iposva@chromium.org
ea653021fc - Allow hidden properties to be set on any JSObject through the V8 C++ API. 
- Use the hidden properties to expose a IdentityHash accessor.

Review URL: http://codereview.chromium.org/50016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1550 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-03-19 18:50:00 +00:00
ager@chromium.org
2fcad0aec1 Revert change 1509 that flush ICs when adding setters on an object or 
when setting a __proto__ to an object that holds a setter.

This seems to cause a major page load regression, so we need to tune
the clearing.
Review URL: http://codereview.chromium.org/50011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1548 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-03-19 15:06:00 +00:00
lrn@chromium.org
eb656c723b Moved subject and index before matches in RegExp lastMatchInfo. 
Some minor changes, and removed the new handlescope in the inner loop of replace. Only really affects replaces on extremely long strings.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1524 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-03-17 12:44:20 +00:00
erik.corry@gmail.com
608a99a90c Remove all uses of StringShape variables, since that has proven 
to be error-prone and of little benefit in terms of performance.
Review URL: http://codereview.chromium.org/45010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1521 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-03-17 09:33:06 +00:00
davemoore@chromium.org
46f753a184 - Added ability to call histograms from within v8 
- Changed the StatsRates to use the new HistogramTimers

Review URL: http://codereview.chromium.org/42020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1510 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-03-13 16:06:31 +00:00
christian.plesner.hansen@gmail.com
8dffcb9efa Flush ICs when adding setters to an object or setting a __proto__ to 
an object that holds a setter.  If there are no store ics then no
flushing is done.  The implementation has been tweaked so that no ICs
are cleared during normal context creation.
This may cost us some performance but I'm submitting it as it is and
if there are problems we can either decide to be smarter about when,
what and/or how we clear, or back this change out altogether.


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1509 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-03-13 13:43:07 +00:00
sgjesse@chromium.org
b74c5b1e39 Moved the storage of the last script id into the heap to make it part of the serialized data when starting V8 on a snapshot. 
Currently the script ids wrap when positive smi value is exhausted.
Review URL: http://codereview.chromium.org/43008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1474 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-03-10 12:05:20 +00:00
kasperl@chromium.org
567d9a603e Tweak the context disposal GC heuristic: If the garbage collector 
interface is exposed through the global gc() function, we avoid 
being clever about forcing GCs when contexts are disposed and leave 
it to the embedder to make informed decisions about when to force 
a collection.
Review URL: http://codereview.chromium.org/40154

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1422 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-03-05 07:44:13 +00:00
iposva@chromium.org
f5966c3815 Align code entry points to 32 bytes. 
Review URL: http://codereview.chromium.org/27269

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1386 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-02-27 11:19:31 +00:00
kasperl@chromium.org
c7c959632a Experimental (somewhat): Force GCs when disposing contexts, but 
make sure not to do it repeatedly for bursts of context 
disposals.
Review URL: http://codereview.chromium.org/27201

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1375 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-02-26 12:40:50 +00:00
iposva@chromium.org
c093e94546 - Pass the knowledge whether the old GC is compacting to the GC prologue and epilogue. This allows us to skip frame cooking and uncooking when doing a mark-sweep GC. 
- Add the ability for the code to refer to its code object by adding a handle to the code object in the MacroAssembler.

Review URL: http://codereview.chromium.org/27133

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1368 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-02-25 16:52:15 +00:00
iposva@chromium.org
be6b490fb0 Remove experimental ExternalSymbolCallback feature. This is not needed 
since we can now transform String objects to be external when needed.

Review URL: http://codereview.chromium.org/21285

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1260 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-02-12 16:58:55 +00:00
iposva@chromium.org
1bf2c7405e Allow the morphing of strings to external strings to avoid having to 
create copies in the embedding code (aka WebKit V8 bindings) on every
external use.

Review URL: http://codereview.chromium.org/21117

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1252 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2009-02-11 23:52:52 +00:00