TBR=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11177004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12743 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r12623 (22002351)

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10979066
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12742 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

MIPS: Fix issue 2346 (order of operations in keyed store on arrays) and turn get-own-property-descriptor.js test into a regression test.

Port r12604 (ae837167)

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10987086
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12741 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

MIPS: Make the speed of incremental marking depend also on the rate at which we are hitting expensive write barrier operations, not just on the rate of allocation.

Port r12618 (c621b025)

BUG=
TEST=

Review URL: https://codereview.chromium.org/10977070
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12740 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org,palfia@homejinni.com

Review URL: https://chromiumcodereview.appspot.com/11167004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12739 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r12686 (bdda5c81)

BUG=
TEST=

Review URL: https://codereview.chromium.org/11143029
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12738 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11116011
Patch from JF Bastien <jfb@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12737 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The delete operator always return true in case of indexed property. It
should return false if an indexed property can't be deleted (eg.
DontDelete attribute is set or a string object is the holder).

Contributed by Peter Varga <pvarga@inf.u-szeged.hu>

BUG=none
TEST=mjsunit/delete-non-configurable

Review URL: https://codereview.chromium.org/11094021
Patch from Peter Varga <pvarga@inf.u-szeged.hu>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12736 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org,jfb@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11087047

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12735 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is another preparation for incremental code flushing. Instead of
linking candidates using the code entry field, we use the next pointer
that is also used to link optimized functions together. Since we only
support flushing of unoptimized code, this field can be shared.

R=ulan@chromium.org
BUG=v8:1609

Review URL: https://codereview.chromium.org/11141023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12734 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://codereview.chromium.org/11155007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12731 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/11137016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12728 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=154733
Review URL: https://codereview.chromium.org/11111015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12726 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This fixes some test failures since r12714 which shared the code for
code flushing between full and incremental marking and is only a quick
fix until we can enable incremental code flushing.

R=jkummerow@chromium.org
BUG=v8:1609

Review URL: https://codereview.chromium.org/11137014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12723 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/11145017

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12722 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This has the advantage that AccessArgumentsAt itself can't deopt anymore and the
bounds check is visible for the elimination phase. Furthermore, things are
simply more consistent now, a good thing in itself. :-)

Review URL: https://codereview.chromium.org/11106012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12721 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/11155005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12720 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/11147016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12719 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Save one instruction in allocating new space by using an immediate add if
possible to calculate the new top of heap.

BUG=

Review URL: https://chromiumcodereview.appspot.com/11091068
Patch from Anthony Berent <aberent@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12718 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The crashes that caused r12342 to be reverted are fixed in r12563.

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11092081

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12715 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is a first step towards incremental code flushing. The code
flushing support is now shared between full and incremental marking.
The code flusher itself is not yet activated in incremental mode and
will require some additional adaptations.

R=ulan@chromium.org
BUG=v8:1609

Review URL: https://codereview.chromium.org/11028016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12714 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=v8:2120

Review URL: https://codereview.chromium.org/11118018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12713 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The call sites are more concise, the naming is better and at least one
case of superfluous code in release mode was removed.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/11108011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12712 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Allocate heap entry untagged and tag at end to avoid having to subtract off
the tag offset before storing the value.

BUG=

Review URL: https://codereview.chromium.org/11028115
Patch from Anthony Berent <aberent@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12711 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=emits wrong instruction
R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11118015
Patch from JF Bastien <jfb@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12710 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/11048051

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12709 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r12527 (24ed881a)

BUG=
TEST=

Review URL: https://codereview.chromium.org/11109003
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12708 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/11094073

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12705 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Don't clear EnumLength but rather copy the enum cache. Added regression test for crashes from chromecrash.

Review URL: https://chromiumcodereview.appspot.com/11103036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12704 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=155076

Review URL: https://codereview.chromium.org/11093073

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12703 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/11092075

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12702 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=151625

Review URL: https://codereview.chromium.org/11086073

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12701 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=151625

Review URL: https://codereview.chromium.org/11098070

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12700 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Secondary changes:
- don't transfer ownership back on CNLT
- turned debugging checks back into ASSERT

Review URL: https://chromiumcodereview.appspot.com/11099064

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12699 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=151625

Review URL: https://codereview.chromium.org/11099063

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12698 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

We iteratively remove all dead Hydrogen instruction until we reach a fixed point. We consider an instruction dead if it is unused, has no observable side effects and is deletable. The last part of the condition is currently not very nice: We basically have to whitelist "safe" instructions, because we are missing more detailed dependencies and/or more detailed tracking of side effects.

We disable dead code elimination for now in our test runners, because we have tons of poorly written tests which wouldn't test anymore what they are supposed to test with this phase enabled. To get test coverage for dead code elimination itself, we should enable it on a few build bots. This is not really a perfect state, but the best we can do for now.

This patch includes a few const-correctness fixes, most of them were necessary for this CL.

Review URL: https://codereview.chromium.org/11088027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12697 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ulan@chromium.org

Review URL: https://chromiumcodereview.appspot.com/11098047

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12692 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=danno@chromium.org
BUG=152506

Review URL: https://chromiumcodereview.appspot.com/11028116

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12691 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/11028056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12690 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://chromiumcodereview.appspot.com/11091044

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12689 ce2b1a6d-e550-0410-aec6-3dcde31c8c00