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Author SHA1 Message Date
mstarzinger@chromium.org
36d128d7b8 Reshuffle an if() condition to not depend on an uninitialized value. 
Node::class_id_ contains garbage for newly allocated (FREE) nodes. This patch
changes the code to first test the node state_, then (for non-FREE nodes),
class_id_, and not the other way around.

This does not affect the branch taken (i.e. the current code is correct),
but makes Valgrind and MSan happy.

Review URL: https://codereview.chromium.org/11362158
Patch from Evgeniy Stepanov <eugenis@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12903 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 14:40:55 +00:00
rossberg@chromium.org
c203f05474 Delivery logic for Object.observe 
This CL has two parts: the first is the logic itself, whereby each observer callback is assigned
a "priority" number the first time it's passed as an observer to Object.observe(), and that
priority is used to determine the order of delivery.

The second part invokes the above logic as part of the API, when the JS stack winds down to
zero.

Added several tests via the API, as the delivery logic isn't testable from a JS test
(it runs after such a test would exit).

Review URL: https://codereview.chromium.org/11266011
Patch from Adam Klein <adamk@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12902 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 13:44:59 +00:00
rossberg@chromium.org
8eb704257f Object.observe: Fixed missing case for turning off ICs. 
R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11358122

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12901 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 13:15:54 +00:00
rossberg@chromium.org
fbc6e0d883 Object.observe: generate change records for indexed properties. 
Details:
- Extend ElementAccessors with GetAttributes method.
- Add HasLocalElement, Get[Local]ElementAttribute methods to JSReceiver/JSObject.
- Otherwise, mirror implementation for named properties.

Cannot correctly handle the cases yet where an accessor is redefined or deleted.

Also fixed handling of object info table.

(Based on CL https://codereview.chromium.org/11362115/)

R=verwaest@chromium.org,mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11365111

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12900 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 12:58:08 +00:00
danno@chromium.org
0f0da437e2 Fix intptr_t/int32_t casting problem on Win64. 
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11369133

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12899 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 12:53:15 +00:00
danno@chromium.org
bd4e114b8e Add code again to allow reclaiming old unexecuted functions. 
When code objects in the heap for FUNCTIONs and OPTIMIZED_FUNCTIONs are marked by the GC, their prologue is patched with a call to a stub that removes the patch. This allows the collector to quickly identify code objects that haven't been executed since the last full collection (they are the ones that sill contain the patch). The functionality is currently disabled, but can be activated by specifying the "--age-code".

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/10837037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12898 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 12:18:11 +00:00
yangguo@chromium.org
943c10bb87 Rename kAsciiStringTag to kOneByteStringTag 
This is just a rename. After commit, I'll begin with the semantic changes.
Until those are complete, kOneByteStringTag will have the same meaning as
kAsciiStringTag.

BUG=

Review URL: https://chromiumcodereview.appspot.com/11293168
Patch from Dan Carney <dcarney@google.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12897 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 12:14:29 +00:00
mstarzinger@chromium.org
a31889e2de Fix slack tracking when instance prototype changes. 
This fixes a corner case when the instance prototype of a function is
changed while inobject slack tracking is still in progress. This caused
the intial map to be unrelated for functions with the same shared info
and hence the shared construct stub is no longer generic enough to work
for all those functions.

R=danno@chromium.org
BUG=chromium:157019
TEST=mjsunit/regress/regress-crbug-157019

Review URL: https://codereview.chromium.org/11293059

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12896 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 11:56:44 +00:00
danno@chromium.org
bbcfa17134 Use movw/movt on ARM to load constant roots 
BUG=none
TEST=none

Review URL: https://codereview.chromium.org/11307012
Patch from Jay Conrod <dconrod@codeaurora.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12895 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 10:32:39 +00:00
mstarzinger@chromium.org
8e7ae24b40 Fix disabling of code flusher while marking. 
This fixes a corner case when the code flusher is disabled while
incremental marking is running. The list of candidates needs to be
evicted to prevent list fragments without a head floating around.

R=ulan@chromium.org
BUG=chromium:159140

Review URL: https://codereview.chromium.org/11366136

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12894 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 10:26:50 +00:00
mstarzinger@chromium.org
63b5392717 Make test case in r12891 non-threaded. 
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/11366149

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12893 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 09:45:47 +00:00
mstarzinger@chromium.org
e9efaf6c87 Revert r12889 due to Webkit test failures. 
Pass the SIGPROF signal on to previously registered signal handler.

Regressions: Unexpected crashes (2)
  inspector/profiler/cpu-profiler-profiling-without-inspector.html
  inspector/profiler/cpu-profiler-profiling.html

R=danno@chromium.org

Review URL: https://codereview.chromium.org/11377052

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12892 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 09:19:23 +00:00
mstarzinger@chromium.org
db73b0af16 Add a test case for object grouping in a scavenger GC 
BUG=v8:2077
TEST=cctest/test-api/ApiObjectGroupsCycleForScavenger

Review URL: https://codereview.chromium.org/11312123
Patch from Kentaro Hara <haraken@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12891 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-08 09:10:53 +00:00
danno@chromium.org
63ada1da1b Move vldr in DoLoadKeyedFastDoubleElement before the hole check 
This reschedules instructions to better absorb VFP load latency.
BUG=none
TEST=none

Review URL: https://codereview.chromium.org/11363086
Patch from Rajeev Krithivasan <rkrithiv@codeaurora.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12890 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-07 21:38:46 +00:00
danno@chromium.org
17194b087e Pass the SIGPROF signal on to previously registered signal handler. 
This enables the google-perftools SIGPROF signal handler to continue to work properly.

BUG=none

Review URL: https://codereview.chromium.org/11195045
Patch from William Chan <willchan@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12889 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-07 17:23:02 +00:00
rossberg@chromium.org
e059e64c98 Object.observe: include oldValue in change records, 
plus more accurate distinction of different change types.

Required handlifying more code.

Also fixed a handlification bug in JSProxy::GetElementAttributeWithHandler.

R=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11362115

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12888 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-07 14:14:50 +00:00
ulan@chromium.org
101d64c1a6 Simplify some of the startup code for SubStringStub::Generate. 
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11098043
Patch from JF Bastien <jfb@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12887 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-07 13:22:03 +00:00
ulan@chromium.org
8a3f19f720 Support shared library build of Android for v8. 
v8 depends on the system log library. If we built it as a separate so,
log needs to be included in the link step.

BUG=chromium:158821

Review URL: https://chromiumcodereview.appspot.com/11369081
Patch from Yaron Friedman <yfriedman@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12883 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-07 12:22:48 +00:00
yangguo@chromium.org
ecb6126e45 Remove check for recursion depth for JSON.stringify. 
R=mstarzinger@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11368119

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12882 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-07 12:12:52 +00:00
danno@chromium.org
d079e3f937 Fix another casting problem in Win64 
TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11363121

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12881 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-07 10:31:45 +00:00
danno@chromium.org
a7a63219fe Fix size_t/int casting problem on Win64 build 
TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11364121

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12880 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-07 09:59:50 +00:00
danno@chromium.org
0fc9527abe Decouple allocation and creation of deopt tables 
This makes it possible to calculate the future address of a deopt entry before it is possible to generate the deopt table.

Review URL: https://codereview.chromium.org/11275145

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12877 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-07 08:49:17 +00:00
mvstanton@chromium.org
85ac311a6e MIPS: Consolidated all the key store/load classes in the Hydrogen and Lithium space into just two: HLoadKeyed/HLoadKeyedGeneric and HStoreKeyed/HStoreKeyedGeneric LLoadKeyed/LLoadKeyedGeneric and LStoreKeyed/LStoreKeyedGeneric 
Port r12839 (b8b7faa3)

BUG=
TEST=

Review URL: https://codereview.chromium.org/11369110
Patch from palfia <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12876 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-07 08:37:58 +00:00
mstarzinger@chromium.org
e405ff84b4 ES6: Adding support for size to Set and Map 
Section 15.14.5.10 and 15.16.5.7 in the October 26, 2012 ES6 draft,
http://wiki.ecmascript.org/doku.php?id=harmony:specification_drafts

This adds a getter for "size" to Set.prototype and Map.prototype which reflects
the number of elements in the Set and Map respectively.

BUG=v8:2395

Review URL: https://codereview.chromium.org/11360089
Patch from Erik Arvidsson <arv@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12875 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-06 18:14:45 +00:00
mstarzinger@chromium.org
762c36b6fb Allow collection of DOM objects in minor GC cycles. 
A design document: https://docs.google.com/a/google.com/document/d/16DeHrzkm3cO9XCPT1aK3Y5qgUxXB3RFmueqQWYmN2rI/edit

Performance & memory results: https://docs.google.com/a/google.com/document/d/1h0-EsHu7T0sSMuZm5eE0r1e8sCAzY3weLvsDUpOSngE/edit

The WebKit side patch: https://bugs.webkit.org/show_bug.cgi?id=98725

At present no one is using the V8 APIs this patch is going to add. After this patch is landed, the WebKit side patch will use it.

BUG=

Review URL: https://codereview.chromium.org/11085015
Patch from Kentaro Hara <haraken@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12874 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-06 17:32:15 +00:00
mstarzinger@chromium.org
c54fc70f13 Store Object.observe state per-isolate rather than per-context 
This requires adding a new JSObject to the strong root list and populating it from
object-observe.js. The main other change is that we now directly use ObjectHashTable
from JS rather than using WeakMap, since using the latter would end up leaking whichever
Context initialized that observation state.

Added a test via the API showing that different contexts all end up working on the same state.

Review URL: https://codereview.chromium.org/11274014
Patch from Adam Klein <adamk@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12873 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-06 16:47:15 +00:00
svenpanne@chromium.org
b22aacc68e Fixed visibility attribute for GetPointerFromInternalField 
TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/11312099

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12868 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-06 13:07:06 +00:00
rossberg@chromium.org
b80cbd7922 Object.observe: generate change records for named properties. 
In more detail:
- Set observation bit for observed objects (and make NormalizedMapCache respect it).
- Mutation of observed objects is always delegated from ICs to runtime.
- Introduce JS runtime function for notifying generated changes.
- Invoke this function in the appropriate places (including some local refactoring).
- Inclusion of oldValue field is not yet implemented, nor element properties.

Also, shortened flag to --harmony-observation.

R=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11347037

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12867 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-06 12:32:36 +00:00
rossberg@chromium.org
beaccd74cb Object.observe: implement map bit and functions to access it. 
R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11276028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12866 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-06 12:30:22 +00:00
verwaest@chromium.org
83378890eb Prepare push to trunk. Now working on version 3.15.2. 
R=danno@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11362112

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12863 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-06 12:10:54 +00:00
mstarzinger@chromium.org
03ba764f3e Put incremental code flushing behind a flag. 
This is used to disable incremental code flushing by default for now
until we can stabilize it and make it ready for production.

R=verwaest@chromium.org
BUG=chromium:159140

Review URL: https://codereview.chromium.org/11367105

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12862 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-06 11:54:05 +00:00
yangguo@chromium.org
85bda7bc09 Fix stack overflow for mac build. 
R=ulan@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11358096

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12861 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 18:39:59 +00:00
verwaest@chromium.org
f95d9502c3 Removed duplicate line. 
Review URL: https://chromiumcodereview.appspot.com/11359055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12860 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 15:37:04 +00:00
yangguo@chromium.org
71688ba750 Reduce stack frame size in JSON.stringify. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11366087

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12859 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 15:01:51 +00:00
verwaest@chromium.org
384ab895e8 Remove superfluous setting of bitfield3. 
Review URL: https://chromiumcodereview.appspot.com/11367093

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12858 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 14:43:11 +00:00
svenpanne@chromium.org
6f9a75a449 Removed useless Canonicalize implementations subsumed by dead code elimination. 
Review URL: https://codereview.chromium.org/11362085

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12857 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 14:38:00 +00:00
svenpanne@chromium.org
50f6e07e67 Nano-refactoring: Simplify initialization 
Review URL: https://codereview.chromium.org/11368078

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12856 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 14:37:28 +00:00
ulan@chromium.org
f106c9c9f7 Add rotate-right instruction to hydrogen and use it instead of bitwise operations 
of the form ((x >>> i) | (x << (32 - i))).

This CL is based on https://chromiumcodereview.appspot.com/10984057/
by Jay Conrod <dconrod@codeaurora.org>.

R=danno@chromium.org,mstarzinger@chromium.org,dconrod@codeaurora.org

Review URL: https://chromiumcodereview.appspot.com/11033005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12855 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 13:28:10 +00:00
mstarzinger@chromium.org
b77e629f1a Implement IsIndependent(Isolate*) 
BUG=
TEST=cctest/test-api/IndependentWeakHandle

Committed: https://code.google.com/p/v8/source/detail?r=12852

Review URL: https://codereview.chromium.org/11368053
Patch from Kentaro Hara <haraken@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12854 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 13:20:45 +00:00
yangguo@chromium.org
e452c10702 Add fast path for FastProperty objects in JSON.stringify. 
R=verwaest@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11363078

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12853 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 12:59:35 +00:00
mstarzinger@chromium.org
ea00c51e24 Implement IsIndependent(Isolate*) 
BUG=
TEST=cctest/test-api/IndependentWeakHandle

Review URL: https://codereview.chromium.org/11368053
Patch from Kentaro Hara <haraken@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12852 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 12:35:51 +00:00
yangguo@chromium.org
e26012e771 Fix JSON.stringify wrt harmony proxies. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11312063

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12851 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 10:53:56 +00:00
yangguo@chromium.org
17fab1dfa1 Improve handle allocation in JSON.parse. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11358065

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12850 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 10:50:36 +00:00
svenpanne@chromium.org
f3807ca17b Heavy cleanup of the external pointer API. 
Added highly efficient Object::SetAlignedPointerInInternalField and
Object::GetAlignedPointerFromInternalField functions for 2-byte-aligned
pointers. Their non-aligned counterparts Object::GetPointerFromInternalField and
Object::SetPointerInInternalField are now deprecated utility functions.

External is now a true Value again, with New/Value/Cast using a JSObject with an
internal field containing a Foreign. External::Wrap, and External::Unwrap are now
deprecated utility functions.

Added Context::GetEmbedderData and Context::SetEmbedderData. Deprecated
Context::GetData and Context::SetData, these are now only wrappers to access
internal field 0.

Added highly efficient Context::SetAlignedPointerInEmbedderData and
Context::GetAlignedPointerFromEmbedderData functions for 2-byte-aligned
pointers.

Review URL: https://codereview.chromium.org/11190050

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12849 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 10:25:32 +00:00
svenpanne@chromium.org
24bb0668e6 Simplified HCheckMaps handling a bit. 
This is a refactoring-only CL which simplifies the way we emit combinations of
Smi+map checks.

Review URL: https://codereview.chromium.org/11343011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12848 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 10:06:24 +00:00
svenpanne@chromium.org
9de1d40d28 Improve handling of property loads on the proto chain. 
Previously Crankshaft emitted a generic load for these, now we emit a load of a
named field, guarded by a proto chain check.

LCheckPrototypeMaps now returns the holder, which is for free, because it
already had to check its map as the last step, anyway. This is in sync with what
StubCompiler::CheckPrototype does.

Review URL: https://codereview.chromium.org/11338030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12847 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-05 08:53:54 +00:00
yangguo@chromium.org
e8d91b424c Handle edge cases in basic JSON.stringify. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11315009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12842 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-02 14:46:57 +00:00
yangguo@chromium.org
64793b3f0d Correctly visit all external strings. 
BUG=

Review URL: https://chromiumcodereview.appspot.com/11340010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12841 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-02 12:45:00 +00:00
verwaest@chromium.org
14abf05bd5 Ensure reducing the length of an array doesn't make it go holey. 
Also only transition and/or change anything to the backing store if we are
actually going to delete anything.

BUG=

Review URL: https://chromiumcodereview.appspot.com/11358011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12840 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-02 10:24:56 +00:00
mvstanton@chromium.org
a85fd03caa Consolidated all the key store/load classes in the Hydrogen and Lithium 
space into just two:
HLoadKeyed/HLoadKeyedGeneric and HStoreKeyed/HStoreKeyedGeneric
LLoadKeyed/LLoadKeyedGeneric and LStoreKeyed/LStoreKeyedGeneric
BUG=

Review URL: https://codereview.chromium.org/11238016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12839 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2012-11-02 09:18:53 +00:00