TBR=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23691049

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16664 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This change is mostly straightforward: for 'normal' sorts of change records,
simply don't deliver a changeRecord to a given observer callback if an access
the callback's Context is not allowed to "GET" or "HAS" changeRecord.name on
changeRecord.object, or if ACCESS_KEYS is disallowed.

For 'splice' records, the question of whether to hand it to an observer is trickier, since
there are multiple properties involved, and multiple types of possible information leakage.
Given that access-checked objects are very rare (only two in Blink, Window and Location),
and that they are not normally used as Arrays, it seems better to simply not emit any splice
records for such objects rather than spending lots of logic to attempt to avoid information
leakage for something that may never happen.

BUG=v8:2778
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/22962009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16663 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Original descriptions were:
- "Refactor and cleanup VirtualMemory."
- "Fix typo."
- "Deuglify V8_INLINE and V8_NOINLINE."
- "Don't align size on allocation granularity for unaligned ReserveRegion calls."

Reasons for the revert are:
- Our mjsunit test suite slower by a factor of 5(!) in release mode.
- Flaky cctest/test-alloc/CodeRange on all architectures and platforms.
- Tankage of Sunspider by about 6% overall (unverified).

TBR=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23970004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16662 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/24095005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16661 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23647011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16660 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This was reverted due to performance regressions on Sunspider and other
benchmarks due to double GCs caused by the trampoline.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23435006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16659 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23578022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16658 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r16643 (b818da5)

BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/24108002

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16657 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r16630 (e045054)

BUG=
R=gergely@homejinni.com

Review URL: https://codereview.chromium.org/23503050

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16656 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23464069

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16655 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

added so these can be backed out once the cause of the bug is determined.

BUG=
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/23936007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16654 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

StoreGlobal stubs are generated by Hydrogen now

BUG=
R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/23881004

Patch from Weiliang Lin <weiliang.lin2@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16653 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23781006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16652 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/24107003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16651 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:2823
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23514050

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16650 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=titzer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23842004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16649 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also add additional ASSERTs to help tracking the flaky
test-alloc/CodeRange in Windows.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23542027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16648 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23883007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16647 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23710025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16646 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Implement simplistic local alias analysis, which will be used in both check elimination and load elimination.

BUG=
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23516010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16645 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The spec omits the receiver arg with the idea arrow functions with lexical |this| will obviate the need for it.

BUG=
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/23727006

Patch from Rafael Weinstein <rafaelw@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16644 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/24031003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16643 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/24093002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16642 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/23494047

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16641 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23514048

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16640 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/23600023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16639 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23710023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16638 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Remove a lot of platform duplication, and simplify the virtual
memory implementation. Also improve readability by avoiding bool
parameters for executability (use a dedicated Executability type
instead).

Get rid of the Isolate::UncheckedCurrent() call in the platform
code, as part of the Isolate TLS cleanup.

Use a dedicated random number generator for the address
randomization, instead of messing with the per-isolate random
number generators.

TEST=cctest/test-virtual-memory
R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/23641009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16637 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23494046

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16636 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23994004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16633 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23480067

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16632 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23468021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16631 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23587019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16630 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This patch implements optimized objectInfo structure which manages the set of observers associated with an object and the changeRecord types which they accept.

Observation in the normal case (Object.observe, default accept types, one observer) now allocates fewer objects and unobservation no longer needs to scan and splice an InternalArray -- making the combined speed of observe/unobserve about 200% faster.

This patch implements the following optimizations:

-objectInfo is initially created without any connected objects or arrays. The first observer is referenced directly by objectInfo, and when a second observer is added, changeObservers converts to a mapping of callbackPriority->observer, which allows for constant time registration/de-registration.

-observer.accept and objectInfo.performing are conceptually the same data-structure. This is now directly represented as an abstract "TypeMap" which can later be optimized to be a smi in common cases, (e.g:   https://codereview.chromium.org/19269007/).

-objectInfo observers are only represented by an object with an accept typeMap if the set of accept types is non-default

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/19541010

Patch from Rafael Weinstein <rafaelw@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16629 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

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

Review URL: https://codereview.chromium.org/24052003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16628 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
R=ulan@chromium.org, yangguo@chromium.org

Review URL: https://codereview.chromium.org/23648009

Patch from Weiliang Lin <weiliang.lin2@gmail.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16627 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/23629031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16624 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=danno@chromium.org

Review URL: https://codereview.chromium.org/23629040

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16623 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23708030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16622 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23904012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16621 ce2b1a6d-e550-0410-aec6-3dcde31c8c00