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Author SHA1 Message Date
erik.corry@gmail.com
0cdf6b50e7 Fix compile errors on 64 bit platforms. 
Review URL: https://chromiumcodereview.appspot.com/10053009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11268 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-11 09:55:20 +00:00
erik.corry@gmail.com
a3629daa2c Fix external allocated memory accounting to use 64 bit values on 
64 bit architectures.
Review URL: https://chromiumcodereview.appspot.com/10020032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11265 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-11 09:23:57 +00:00
ulan@chromium.org
2b554f2448 Make progress in incremental marking if scavenge is delaying mark-sweep. 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9965054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11213 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-04-03 07:32:19 +00:00
ulan@chromium.org
0b6a617779 Age inline caches after context disposal. 
Review URL: https://chromiumcodereview.appspot.com/9837005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11122 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-23 13:33:11 +00:00
ulan@chromium.org
c7c3f8d5be Adjust heuristics for idle notifications after context disposal. 
Review URL: https://chromiumcodereview.appspot.com/9701093

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11095 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-20 13:29:49 +00:00
fschneider@chromium.org
1a29d5cf33 Revert dynamic frame alignment (r9415) 
Marking aligned frames with a marker can produce false positives since
an optimized frame spill slot may be mistakenly seen as a marker value.

It also breaks the debugger reproducably: Tested when enabling alignment
for all functions and running the debugger unit tests.

BUG=v8:2009
TEST=no crashes in EarleyBoyer
Review URL: https://chromiumcodereview.appspot.com/9703110

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11075 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-19 07:45:06 +00:00
erik.corry@gmail.com
e3774cf23f Record the addresses of pages that are unmapped to aid 
in post mortem crash dump analysis.
Review URL: https://chromiumcodereview.appspot.com/9700061

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11071 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-16 14:13:22 +00:00
mstarzinger@chromium.org
4b4b3a4da7 Add kAbortIncrementalMarkingMask flag for GC. 
This adds an additional flag to control whether incremental marking
should be aborted when requesting a GC, providing a finer granularity
between kNoGCFlags and kMakeHeapIterableMask.

R=ulan@chromium.org
BUG=v8:1608

Review URL: https://chromiumcodereview.appspot.com/9608006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10961 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-07 17:52:16 +00:00
ulan@chromium.org
7e8c7fa368 Ignore soft heap limit when reserving space. 
R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9605014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10958 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-03-07 16:24:11 +00:00
mstarzinger@chromium.org
fb8eb04bfd Implement inlining of constructor calls. 
R=vegorov@chromium.org,kmillikin@chromium.org

Review URL: https://chromiumcodereview.appspot.com/9304001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10849 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-28 09:05:55 +00:00
rossberg@chromium.org
becd8dd11c Make 'module' a context-sensitive keyword. 
Baseline: http://codereview.chromium.org/9401008/

R=lrn@chromium.org,mstarzinger@chromium.org
BUG=v8:1957
TEST=mjsunit/harmony/module-parsing

Review URL: https://chromiumcodereview.appspot.com/9422001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10832 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-24 15:53:09 +00:00
mstarzinger@chromium.org
36a91e30f7 Fix redefining of attributes on aliased arguments. 
This allows elements of the non-strict arguments object to be redefined
with custom attributes and still maintain an alias into the context.
Such a slow alias is maintained by placing a special marker into the
dictionary backing store of the arguments object.

R=rossberg@chromium.org
BUG=v8:1772
TEST=test262,mjsunit/object-define-property

Review URL: https://chromiumcodereview.appspot.com/9460004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10827 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-24 14:34:01 +00:00
vegorov@chromium.org
fbc230e42b Ensure that executable pages are properly guarded. 
Split executable memory chunks into two pieces: header with all metadata (protection: RW) and body (protection: RWX). Separate header from metadata with a guard page and add a guard page after the page body.

R=erik.corry@gmail.com
BUG=http://crbug.com/115151

Review URL: https://chromiumcodereview.appspot.com/9452002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10809 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-23 12:11:24 +00:00
rossberg@chromium.org
958b3bf470 Parsing of basic module declarations (no imports/exports yet). 
Module definitions are not compiled or otherwise executed yet.
Toplevel module identifiers are bound but never initialized.

R=kmillikin@chromium.org,mstarzinger@google.com
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9401008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10759 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-20 14:02:59 +00:00
jkummerow@chromium.org
0177aa62da Count ICs that have type information. 
Hidden behind --type-info-threshold=X flag, usage dependent on experimental profiler.

Review URL: https://chromiumcodereview.appspot.com/9403009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10753 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-20 12:57:23 +00:00
svenpanne@chromium.org
77079b6fd3 Avoid sharing AccessorPairs during Genesis. 
To test the upcoming changes for map sharing in the presence of accessors, it is
essential that we keep a few global invariants: The map tree should always stay
a tree and AccessorPairs should not be shared between different DescriptorArrays
and/or StringDictionaries. This CL adds a test method for the latter invariant
and makes some changes to the bootstrapping process to avoid such sharing.

Note that we can't enable the new test method permanently yet, because we
currently go back and forth between fast mode and slow mode when adding an
accessor and break this invariant temporarily. This will be handled in a
separate CL.

Review URL: https://chromiumcodereview.appspot.com/9417043

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10744 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-20 08:42:18 +00:00
danno@chromium.org
f0c4b87f34 Implement KeyedStoreICs to grow arrays on out-of-bound stores. 
Supports growing non-COW JSArray by a single element if the backing store has room, and initial allocation of a backing store for the store to index zero of an empty array  to kPreallocatedArrayElements elements (e.g. the [] array literal).

Review URL: https://chromiumcodereview.appspot.com/9310117

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10673 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-10 12:36:05 +00:00
yangguo@chromium.org
988d1269de When rethrowing an exception, print the stack trace of its original site instead of rethrow site. 
BUG=60240

Review URL: https://chromiumcodereview.appspot.com/9310122

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10618 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-07 09:31:06 +00:00
vegorov@chromium.org
a7b0481b6d Tweak compaction candidate selection to avoid keeping page with low occupancy around. 
Increase slots buffer chain length to 15 to make compaction more aggressive and usefull.

Pass gc and collector selection reasons to GCTracer to allow more meaningull --gc-trace.

Print fragmentation of spaces that we do not compact.

R=erik.corry@gmail.com

Review URL: https://chromiumcodereview.appspot.com/9323007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10601 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-03 14:16:40 +00:00
vegorov@chromium.org
6f20db9767 Extend --trace-gc to output amount of memory reserved for V8 heap. 
This allows one to spot fragmentation issues just by looking at --trace-gc output.

R=erik.corry@gmail.com

Review URL: https://chromiumcodereview.appspot.com/9316060

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10584 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-02-02 11:47:23 +00:00
kmillikin@chromium.org
87ccb1d740 Break a circular include dependency. 
1. heap-inl.h has a function Heap::_inline_get_heap_ that calls
Isolate::Current() defined in isolate.h, so heap-inl.h requires
isolate.h.

2. Isolate has an embedded Heap member, so isolate.h requires heap.h.

3. heap.h has inline functions functions defined that call
Heap::_inline_get_heap_, so heap.h requires heap-inl.h (!).

The upshot is that all three need to be included wherever one is.  A
simpler way is to break the cycle by moving the inlined functions in
heap.h to heap-inl.h.

R=vegorov@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9121033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10539 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-27 15:53:24 +00:00
danno@chromium.org
57525ef893 Store transitioned JSArray maps in global context 
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/9073007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10523 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-26 21:47:57 +00:00
erik.corry@gmail.com
448b6bbc41 Flush number string cache on GC (bug 1605). Also start with a small 
number string cache and only grow it if needed, which will be useful
for saving boot time memory use.
This is a second try for  https://chromiumcodereview.appspot.com/923502
after fixing an unrelated stack overflow issue.
Review URL: https://chromiumcodereview.appspot.com/9169080

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10513 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-26 11:32:01 +00:00
erik.corry@gmail.com
248adeb110 Revert 10502 (smaller number string cache) due to test failures. 
Review URL: https://chromiumcodereview.appspot.com/9113060

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10504 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-25 15:17:26 +00:00
erik.corry@gmail.com
a49c8a19ee Flush number string cache on GC (bug 1605). Also start with a small 
number string cache and only grow it if needed, which will be useful
for saving boot time memory use.
Review URL: https://chromiumcodereview.appspot.com/9235029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10502 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-25 14:27:58 +00:00
mstarzinger@chromium.org
4b913965a9 Fix responsiveness of high promotion mode heuristics. 
This changes the heuristics for the high promotion mode to be checked
on all GCs (including scavenges), so that changes in the applications
behavior are recognized earlier. It also fixes miscalculations in the
survival counter and rate which caused heuristics to fail completely.

R=vegorov@chromium.org
BUG=v8:1899

Review URL: https://chromiumcodereview.appspot.com/9196003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10500 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-25 13:46:42 +00:00
vegorov@chromium.org
04289e8d17 Support inlining at call-sites with mismatched number of arguments. 
Review URL: https://chromiumcodereview.appspot.com/9265004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10483 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-24 08:43:12 +00:00
erik.corry@gmail.com
83b439a0f9 Further robustify the keyed lookup cache against unlucky hash 
seeds.  This change is performance neutral on most snapshot
VM builds, but provides a big improvement on string-fasta
on around 5% of builds.
Review URL: https://chromiumcodereview.appspot.com/9193015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10478 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-23 16:18:10 +00:00
yangguo@chromium.org
11e779185b Parallelize cpplint in presubmit and fix usage of DISALLOW_* macros. 
BUG=v8:1653

Review URL: https://chromiumcodereview.appspot.com/9192010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10465 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-20 16:17:08 +00:00
erik.corry@gmail.com
9672a04de2 Fix keyed lookup cache to have 2 entried per bucket instead 
of one in order to reduce collisions.
Review URL: https://chromiumcodereview.appspot.com/9269004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10458 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-20 13:43:21 +00:00
jkummerow@chromium.org
3a4bed8a7e Only clear monomorphic ICs on GC after Context exit 
Review URL: https://chromiumcodereview.appspot.com/9255014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10431 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-18 16:16:11 +00:00
erik.corry@gmail.com
70da367f6b More spelling changes. 
Review URL: http://codereview.chromium.org/9231009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10407 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-16 12:38:59 +00:00
erik.corry@gmail.com
40a433c9e0 Split NumberDictionary into a randomly seeded and an unseeded 
version. We don't want to randomize the stub cache.
Review URL: http://codereview.chromium.org/9174023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10402 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-16 09:44:35 +00:00
yurys@chromium.org
ebb75c23a1 Provide a way for iterating through all external strings referenced from the JS heap 
Review URL: http://codereview.chromium.org/9139018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10400 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-13 15:14:45 +00:00
erik.corry@gmail.com
b3e0761e38 Cosmetic changes ("set up" is a verb, "setup" is a noun). 
Review URL: http://codereview.chromium.org/9139051

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10399 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-13 13:09:52 +00:00
svenpanne@chromium.org
d90860b42f Changes after code review# 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10373 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-10 16:12:24 +00:00
svenpanne@chromium.org
73f2f5db68 Use a separate new type AccessorPair for JavaScript callbacks instead of a FixedArray of length 2 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10371 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-10 16:11:33 +00:00
erik.corry@gmail.com
dc9910f4a4 Minor cleanups of numeric seeded hashing patch. 
Review URL: http://codereview.chromium.org/9155010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10367 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-10 13:24:18 +00:00
erik.corry@gmail.com
81a0271004 Randomize the seed used for string hashing. This helps guard against 
CPU-eating DOS attacks against node.js servers.  Based on code from
Bert Belder.  This version only solves the issue for those that compile
V8 themselves or those that do not use snapshots.  A snapshot-based
precompiled V8 will still have predictable string hash codes.
Review URL: http://codereview.chromium.org/9086006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10330 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-01-04 15:12:15 +00:00
ricow@chromium.org
ec66c36fbf Reland 10216 - Optimize the equality check case of ICCompare stubs. 
Now with arm and x64 support. Additionally, added default unreachable case to switch statement in CompareIC::TargetState to make win and mac compilers happy.

Reviewer guide:
This is an exact copy of 10216 except:
src/arm/*
src/x64/*
src/ic.cc (added default case to swith in CompareIC::TargetState)
Review URL: http://codereview.chromium.org/8872060

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10219 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-09 09:26:14 +00:00
ricow@chromium.org
174532d23f Revert 10216 Optimize the equality check case of ICCompare stubs. 
Missing arm and x64 implementations
Review URL: http://codereview.chromium.org/8883023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10217 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-08 17:28:44 +00:00
ricow@chromium.org
1028cf2631 Optimize the equality check case of ICCompare stubs. 
This includes specialcasing the generation when we know that the maps
of the two objects are the same. In addition, a new specialized
compare ic known objects cache is created.

The reason for the cache is that we need to have access to the stub
code from the roots; if we do not, the GC will collect the stub. In
this specialized case we use the map pointer as key in the cache, and
we always do a lookup before generating code. Actually hitting
something in the cache will happen very rarely, but we could
potentially overwrite an existing stub, which again will lead to the
GC collecting this old stub (even if it is referenced from other code
objects)
Review URL: http://codereview.chromium.org/8520006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10216 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-12-08 17:17:21 +00:00
ulan@chromium.org
8dc728126e Start incremental marking on idle notification. 
BUG=v8:1458
TEST=cctest/test-api/IdleNotification*

Review URL: http://codereview.chromium.org/8519002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10093 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-30 11:13:36 +00:00
erik.corry@gmail.com
9c18742dd6 Only sweep one page eagerly unless we are running out of space. 
Limit the number of pages that are compacted in a given GC.
Review URL: http://codereview.chromium.org/8692002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10084 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-29 11:56:14 +00:00
mstarzinger@chromium.org
c501fd9c45 Implement high promotion mode for new space. 
This mode drastically decreases pause times by limiting maximum capacity
of the young generation when mutators generate many long-lived objects.
It shrinks new space back to the initial capacity and keeps it at that
capacity until survival rate decreases again.

R=erik.corry@gmail.com

Review URL: http://codereview.chromium.org/8702006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10072 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-25 14:41:38 +00:00
yangguo@chromium.org
2055f4195e Recommit introducing short external strings. 
Review URL: http://codereview.chromium.org/8677006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10054 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-23 13:08:28 +00:00
yangguo@chromium.org
922aee5a02 Rolling back r10049 due to webkit failures. 
Review URL: http://codereview.chromium.org/8681007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10050 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-23 10:41:12 +00:00
yangguo@chromium.org
21edc7c30b Introduce short external strings without pointer cache. 
BUG=
TEST=

Review URL: http://codereview.chromium.org/8635011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10049 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-23 09:58:58 +00:00
fschneider@chromium.org
8ebd1999f5 Propagate and combine constants in Hydrogen 
BUG=none
TEST=none
Review URL: http://codereview.chromium.org/8473002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10034 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-21 10:18:47 +00:00
vegorov@chromium.org
aff88ef399 Fix presubmit error introduced by r9932. 
R=erik.corry@gmail.com
BUG=
TEST=

Review URL: http://codereview.chromium.org/8511010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9934 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-09 14:04:56 +00:00
vegorov@chromium.org
9f50147031 Ensure that promotion queue does not overlap with objects relocated to ToSpace. 
R=erik.corry@gmail.com

Review URL: http://codereview.chromium.org/8477030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9932 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-09 13:48:43 +00:00
erik.corry@gmail.com
52b1457fac Don't set the limit that triggers the next GC higher than the max 
old space size.
Review URL: http://codereview.chromium.org/8491009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9892 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-07 10:35:24 +00:00
keuchel@chromium.org
7385fef2ca Cleanup ScopeInfo and SerializedScopeInfo. 
Both classes have been merged into a single ScopeInfo
class that implements the functionality from both.

This CL does not adapt the broken gdb-jit interface.

Review URL: http://codereview.chromium.org/8352039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9868 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-11-03 10:36:55 +00:00
erik.corry@gmail.com
9065e95d45 Fix missing write barrier in deserialization. Issue 1783. 
Review URL: http://codereview.chromium.org/8352045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9744 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-21 15:20:53 +00:00
erik.corry@gmail.com
8f9721bbbf Shave 39% from snapshot size. 
Review URL: http://codereview.chromium.org/8344079

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9722 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-20 12:27:10 +00:00
vegorov@chromium.org
5d72dde98a Switch UnreachableObjectsFilter to use Marking instead of InstrusiveMarking. 
GcSafeFindCodeForInnerPointer does not work with intrusive marking now and it is used when roots are iterated.

R=erik.corry@gmail.com

Review URL: http://codereview.chromium.org/8342037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9721 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-20 11:40:16 +00:00
erik.corry@gmail.com
3ce33aacc6 New flag --stress-compaction 
Review URL: http://codereview.chromium.org/8234002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9582 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-11 15:52:15 +00:00
fschneider@chromium.org
313f9505b4 Make accessors for oddball objects return Oddball* instead of Object*. 
Fix a use of the hole value and the undefined value before initialization when
initializing V8. Before we just read a NULL value from them.
Review URL: http://codereview.chromium.org/8130002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9557 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-10 09:21:48 +00:00
lrn@chromium.org
ebc0f85e40 Revert "Added ability to lock strings to prevent their representation or encoding from changing." 
This reverts r9424.

Review URL: http://codereview.chromium.org/8143018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9529 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-05 11:09:34 +00:00
rossberg@chromium.org
2c975d6ae2 Make 'Become' safe for retries. 
R=ricow@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/8138003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9524 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-10-05 09:41:54 +00:00
mstarzinger@chromium.org
279356b4b3 Implement shrinking of paged spaces during sweeping. 
For each paged space we release all but one of the unused pages after
marking (when we know the number of live bytes) but before actually
sweeping it. This is not yet done for lazy swept pages.

R=erik.corry@gmail.com
BUG=v8:1614

Review URL: http://codereview.chromium.org/7891010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9481 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-29 12:27:31 +00:00
lrn@chromium.org
172c27a6ba Added ability to lock strings to prevent their representation or encoding from changing. 
Use string locking to ensure consistent representation of source string during JSON parsing.

Review URL: http://codereview.chromium.org/7977001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9424 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-26 11:14:41 +00:00
whesse@chromium.org
2e40bc244a Add dynamic stack frame alignment to optimized functions with untagged doubles on the stack. 
BUG=
TEST=

Review URL: http://codereview.chromium.org/7976024

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9415 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-23 13:28:17 +00:00
svenpanne@chromium.org
1311b8f0e2 Improve Hydrogen code for accessing undefined/null/Infinity. 
In some special (but probably very common) cases we can do better than loading
from a global cell for these global properties by emitting the corresponding
constant directly. This opens up opportunities for further improvements, coming
in a separate CL...
Review URL: http://codereview.chromium.org/7992002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9409 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-23 08:00:06 +00:00
rossberg@chromium.org
d938560d59 Implement identity hashes for proxies. 
R=mstarzinger@chromium.org
BUG=v8:1543,v8:1565
TEST=

Review URL: http://codereview.chromium.org/7754015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9396 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-22 13:54:53 +00:00
danno@chromium.org
f48c9f6557 Basic support for tracking smi-only arrays on ia32. 
Activated by the flag --smi-only-arrays

Currently not crankshaft support, using flag on non-ia32 platforms will lead to write barrier misses and crashes.

BUG=none
TEST=elements_kind.js

Review URL: http://codereview.chromium.org/7901016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9392 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-22 11:30:04 +00:00
rossberg@chromium.org
e04d0b23a8 Make integer indexed properties ("elements") work for proxies. 
Rehome some Object/JSReceiver/JSObject methods.

R=ricow@chromium.org,kmillikin@chromium.org
BUG=v8:1543
TEST=

Review URL: http://codereview.chromium.org/7795055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9381 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-22 10:45:37 +00:00
fschneider@chromium.org
fdaadb78d6 Landing for miket@chromium.org: Add an optional source length field to the Extension constructor. 
Original code review: http://codereview.chromium.org/7889046/
Review URL: http://codereview.chromium.org/7978028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9365 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-21 13:28:09 +00:00
vegorov@chromium.org
ac36cb4504 Merge experimental/gc branch to the bleeding_edge. 
Review URL: http://codereview.chromium.org/7945009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9328 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-19 18:36:47 +00:00
rossberg@chromium.org
e645597aa7 Implement function proxies (except for their use as constructors). 
Introduce new %Apply native.

Extend Execution::Call to optionally handle receiver rewriting (needed for %Apply).

Fix Function.prototype.bind for functions that have .apply modified.

R=kmillikin@chromium.org
BUG=v8:1543
TEST=

Review URL: http://codereview.chromium.org/7623011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9258 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-13 11:42:57 +00:00
erik.corry@gmail.com
260d65d584 Optimize the common obfuscator pattern where ["foo","bar","baz"] 
gets converted fo "foo,bar,baz".split(",").  If the inputs are
symbols we cache the result and make the substrings into symbols.
Review URL: http://codereview.chromium.org/7782025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9164 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-07 11:28:48 +00:00
keuchel@chromium.org
ccd2cd8f64 Prune empty block scopes from scope tree 
BUG=
TEST=

Review URL: http://codereview.chromium.org/7825006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9117 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-09-02 12:43:28 +00:00
yangguo@chromium.org
77141f78ff Tentative implementation of string slices (hidden under the flag --string-slices). 
TEST=test/mjsunit/string-slices.js

Review URL: http://codereview.chromium.org/7477045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9027 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-26 13:03:30 +00:00
keuchel@chromium.org
3c7ca304fe Preliminary code for block scopes and block contexts. 
BUG=
TEST=

Review URL: http://codereview.chromium.org/7549008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8911 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-11 16:29:28 +00:00
rossberg@chromium.org
bd18514972 Implement Harmony semantics for typeof null (behind a flag). 
Harmony is intended to make typeof null === "null". This may
break existing programs. Implementing it will allow us to run
some tests on the actual web.

R=kmillikin@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7598030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8876 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-10 12:12:06 +00:00
mstarzinger@chromium.org
b05ff5e0b9 Prototype of mark-and-compact support for Harmony weak maps. 
R=vegorov@chromium.org
BUG=v8:1565
TEST=cctest/test-weakmaps

Review URL: http://codereview.chromium.org/7553012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8817 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-08-03 12:48:30 +00:00
danno@chromium.org
b7300c6fb1 Fix FixedDoubleArray crashes in chromebot 
R=ricow@chromium.org
BUG=non
TEST=running urls from reliability bots

Review URL: http://codereview.chromium.org/7497010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8748 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-07-27 15:08:50 +00:00
rossberg@chromium.org
5e62e325ac Implement sealing, freezing, and related functions for proxies. 
R=ager@chromium.org
BUG=v8:1543
TEST=

Review URL: http://codereview.chromium.org/7391001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8673 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-07-18 13:04:52 +00:00
sgjesse@chromium.org
8a6108de95 Remove the ability to compile without logging and profiling 
The preprocessor defines ENABLE_LOGGING_AND_PROFILING and ENABLE_VMSTATE_TRACKING has been removed as these where required to be turned on for Crankshaft to work. To re-enable reducing the binary size by leaving out heap and CPU profiler a new set of defines needs to be created.

R=ager@chromium.org

BUG=v8:1271
TEST=all

Review URL: http://codereview.chromium.org//7350014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8622 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-07-13 09:09:04 +00:00
ager@chromium.org
15429da469 Remove heap protection support. 
It does not currently work and when it did work we never got it fast
enough to be useful.

R=kmillikin@chromium.org

Review URL: http://codereview.chromium.org/7324051

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8601 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-07-11 14:03:21 +00:00
ricow@chromium.org
0f682143d9 Introduce code flushing of RegExp code. 
Due to issues relating mostly to chrome extensions we have lately been
running into OOMs that are caused by our executable space running
out. This change introduces flushing of code from regexps if we have
not used the code for 5 mark sweeps.

The approach is different from the normal function code flusing. Here
we make a copy of the code inside the data array, and exchange the
original code with a smi determined by the sweep_generation (a new
heap variable increased everytime we do mark sweep/compact). If we
encounter a smi in EnsureCompiled we simply reinstate the code
object. If, in the marking phase of mark sweep, we find a regexp that
already have a smi in the code field, and this is more than 5
generations old we flush the code from the saved index.
Review URL: http://codereview.chromium.org/7282026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8532 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-07-05 06:19:53 +00:00
kmillikin@chromium.org
96bbcaf416 Explicitly pass the closure when allocating a catch or with context. 
Before: allocation of a catch or with context fetched the closure to store
in the context from the previous context in the context chain.  Now: the
closure is passed explicitly.

R=ager@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7275022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8453 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-29 07:41:42 +00:00
mikhail.naganov@gmail.com
0a12f5dcf8 Fix issue 1354: Bad function name inference. 
R=kmillikin@chromium.org, vitalyr@chromium.org
BUG=1354
TEST=test-func-name-inference

Review URL: http://codereview.chromium.org/7206015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8383 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-22 20:23:48 +00:00
lrn@chromium.org
480ec43c4e Make "native" not a keyword. 
We now only recognize "native function" when it occurs in extension scripts
(parsing with a non-NULL extension), and only if there is no line-terminator
between "native" and "function" (so that it would otherwise be a Syntax Error).
Preparsing never recognizes native functions, which is acceptable since we
never preparse extension scripts (because we don't allow lazy functions
anyway).

BUG=v8:1097

Review URL: http://codereview.chromium.org/7206020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8326 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-20 10:20:57 +00:00
karlklose@chromium.org
f4e4bc43a8 Merge arguments branch to bleeding edge (second try). 
Review URL: http://codereview.chromium.org/7187007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8315 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-16 14:12:58 +00:00
karlklose@chromium.org
cc19d1e278 Revert "Merge arguments branch to bleeding merge." 
This reverts commit ceb31498b9d69edca3260820fb4047045891ce6d.

TBR=kmillikin@chromium.org

Review URL: http://codereview.chromium.org/7172030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8308 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-16 06:37:49 +00:00
karlklose@chromium.org
6cfeb2d400 Merge arguments branch to bleeding merge. 
Review URL: http://codereview.chromium.org/7167006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8300 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-15 15:09:28 +00:00
kmillikin@chromium.org
7d527f857f Change the representation of catch contexts. 
Before, they had no extra slots and an extension object with one named
property.  Now, they use the extension slot for the property name and have
an extra slot for the thrown object.  This increases the size of the context
itself, but removes overall allocation and eliminates a level of indirection.

R=ager@chromium.org

Review URL: http://codereview.chromium.org/7152002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8277 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-14 12:16:23 +00:00
danno@chromium.org
9f432cd159 Dispatch on ElementsKind rather than ExternalArrayType when generating ICs and Crankshaft code for many element operations. This is preparation to be able to share more code in the various element accessor implementations. 
Merge logic to maintain external array and fast element stub caches.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7112010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8244 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-09 15:19:37 +00:00
kmillikin@chromium.org
371af773cf A collection of context-related refactoring changes. 
Introduce separate maps for function and with contexts.  Use the function
context map for testing whether a context is a function context (global
contexts are no longer function contexts).

Split the paths for allocating with and catch contexts.

Rename some functions.  Generally refactor code to make it simpler.

R=ager@chromium.org
BUG=
TEST=

Review URL: http://codereview.chromium.org/7003058

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8231 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-09 11:26:01 +00:00
danno@chromium.org
4de3bb500c Implement core support for FixedDoubleArrays. 
Under a flag without IC or Crankshaft support.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7089002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8229 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-09 10:03:35 +00:00
mikhail.naganov@gmail.com
3b2470d296 Fix presubmit errors catched by a more recent version of cpplint.py. 
Mainly, there were errors concerning blank lines before and after class access
control sections [whitespace/blank_line].

BEFORE an access control section (e.g. public:, private:) there should be a
blank line (except for the section right after the class declaration).

AFTER an access control section there should be no blank line.

TBR=ager@chromium.org

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8193 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-07 07:17:46 +00:00
vitalyr@chromium.org
5872e8ee2f Refactor storage of global handles. 
We used to have a linked list of nodes that were internally
block-allocated.

I kept the node blocks and put them on two lists: 1) the list of all
allocated blocks, 2) the list of blocks with used nodes. (1) is used
to reclaim blocks and (2) is used for traversal during GC. To make
traversal on scavenges faster the nodes holding new space objects are
grouped in an auxiliary array.

This changes the minimal memory usage from 5 words per global handle
to 4. Additional word is used for new space handles.

Review URL: http://codereview.chromium.org/7054072

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8186 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-06 15:23:04 +00:00
jkummerow@chromium.org
c0a0c82b70 Per-Isolate cache for polymorphic stubs 
BUG=1385
TEST=Existing tests still pass; running d8 with --dump-counters shows fewer polymorphic stubs being compiled

Review URL: http://codereview.chromium.org/7094003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8183 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-06 13:15:11 +00:00
sandholm@chromium.org
f942c16ee9 Removing white spaces introduced in r8142. 
Review URL: http://codereview.chromium.org/7025005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8143 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-01 12:24:55 +00:00
sandholm@chromium.org
ec534af392 Ensure strings are never externalized as a side-effect of doing a GC. 
Review URL: http://codereview.chromium.org/7105016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8142 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-01 11:46:14 +00:00
ricow@chromium.org
3c7e1d7015 Create stand-alone json parser (including scanner). 
The current json parser and scanner inherits fromt he normal scanners and parsers,
which are more complicated than we need for parsing json.

The supplied scanner works directly on the string supplied and has a
fast case mode for scanning only ascii characters (it will simply
create a substring or a symbol directly from the existing string). To
allow for creating symbols from a substring I have added a
SubStringAsciiSymbolKey that creates the hash based from our string
without extracting the sub-string. In case we need to add the symbol
it simply creates the symbol directly from the characters inside the
given string.
Review URL: http://codereview.chromium.org/7039037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8029 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-24 12:16:23 +00:00
rossberg@chromium.org
abd77ad439 Rename Proxy class to Foreign, to avoid confusion with Harmony proxies. 
Also fix grokdump, which was off by one after intro of JSProxy type.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7959 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-19 11:47:34 +00:00
danno@chromium.org
123500999f Reland 7917: 
Better support for 'polymorphic' JS and external arrays

Allow  keyed store/load stubs to switch between external array and fast JS arrays without forcing a state transition to the generic stub.

There CL consists of two pieces of functionality. First, code stubs for fast element arrays don't immediately transition to the MEGAMORPHIC state when there's a map mismatch. Second, two ICs are cached per map for fast elements, the MONOMORPHIC version, and a new MEGAMORPHIC version that handles two or more different maps and dispatches to shared stubs to perform the array operation.

Review URL: http://codereview.chromium.org/7036016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7935 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-18 13:17:29 +00:00
danno@chromium.org
83c84a43e8 Revert 7917 
TBR=danno@chromium.org

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7918 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-05-17 18:47:10 +00:00