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325 Commits

Author SHA1 Message Date
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