This corrects r13011.

R=mstarzinger@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11415093

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13020 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:2416

Review URL: https://codereview.chromium.org/11413087

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13019 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This also reduces the number of TLS accesses, so it is a double-win. We have
230k less TLS accesses while running Octane now, so we are down to 23% now
compared to the start of these TLS-related CLs.

To get things right in the presence of multiple Isolates, we have to thread the
correct Isolate through several layers. This threading wasn't that bad after
all, it keeps one honest about the real depdencies. The only ugly thing is that
in ExternalArrayWeakCallback we have to conjure up the current Isolate from the
TLS, but this is a know API deficiency.

Introduced a tiny helper function for throwing on the way.

Review URL: https://codereview.chromium.org/11418088

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13018 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Instead of generating the following for "100 - x":

  mov r1, #100
  subs r0, r1, r0

this patch makes Crankshaft generate this:

  rsbs r0, r0, #100

thus saving a register and a mov.

BUG=

Review URL: https://chromiumcodereview.appspot.com/11308040
Patch from Hans Wennborg <hans@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13017 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Things not working yet are currently blacklisted in the test (see TODOs).

R=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11377157

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13016 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11316104

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13015 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

MIPS: Lattice-based representation inference, powered by left/right specific type feedback for BinaryOps and comparisons

Port r12961 (96c0e493)

BUG=
TEST=

Review URL: https://codereview.chromium.org/11280080
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13014 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://codereview.chromium.org/11416068

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13013 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11413068

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13012 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://chromiumcodereview.appspot.com/11299100

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13011 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org
TEST=cctest/test-dictionary

Review URL: https://codereview.chromium.org/11299098

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13010 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:2418

Review URL: https://codereview.chromium.org/11419078
Patch from Rafael Weinstein <rafaelw@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13009 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11418062

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13006 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/11416072

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13005 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://codereview.chromium.org/11418032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13004 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/11348071

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13001 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Ensure CopyElementsImpl is always executed so it fills in holes even if from_size is 0. Allow FixedDoubleArray::cast to also support FixedArray with size 0.

Review URL: https://chromiumcodereview.appspot.com/11280054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13000 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This reverts commit 2fc4424b00296cc06d6f7eb4bf31ec9c3d6be68a.

Even symbols shouldn't be shared across Isolates. The CL has to be reworked to
use a (Isolate,C-string)->v8-symbol mapping. Slowly approaching Chrome... :-/

Review URL: https://codereview.chromium.org/11419067

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12999 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Timing happens in a scope.  Since crankshaft has been chopped up into three methods, this approach is wrong.

BUG=

Review URL: https://chromiumcodereview.appspot.com/11411065

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12998 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The last call to GetOwnPropertyImplementation() was removed in r12990.

Review URL: https://codereview.chromium.org/11411038
Patch from Adam Klein <adamk@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12997 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11308090

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12996 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11316047

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12993 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11414030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12992 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This also reduces the number of TLS accesses, so it is a double-win. We have
230k less TLS accesses while running Octane now, so we are down to 23% now
compared to the start of these TLS-related CLs.

Introduced a tiny helper function for throwing on the way.

Review URL: https://codereview.chromium.org/11417029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12991 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Eliminates substantial amounts of fragile code duplication and special casing.

Also fixes "a".propertyIsEnumerable(0) to correctly return true.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11420011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12990 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org
BUG=v8:2263
TEST=mjsunit/regress/regress-2263

Review URL: https://codereview.chromium.org/11280025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12989 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11299033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12988 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org
TEST=cctest/test-heap/PrototypeTransitionClearing

Review URL: https://codereview.chromium.org/11411031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12987 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=

Review URL: https://chromiumcodereview.appspot.com/11419012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12986 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

- perform CPU profiler sampling in the sampler thread as we used to;
- skip sampling in the sampling thread if processing thread is running;
- only install SIGPROF handler when CPU profiling is enabled.

BUG=v8:2364

Review URL: https://codereview.chromium.org/11231002
Patch from Sergey Rogulenko <rogulenko@google.com> and Andrey Kosyakov <caseq@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12985 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This disables the above regression test when run with forced marking
deque overflows (which is implicitly enabled by --stress-compaction).

R=verwaest@chromium.org
TEST=cctest/test-heap/InstanceOfStubWriteBarrier

Review URL: https://codereview.chromium.org/11417026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12984 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Note: The test here requires https://codereview.chromium.org/11364237/ to land in order to pass because Object.freeze calls Object.getOwnPropertyNames().

BUG=v8:2411

Review URL: https://codereview.chromium.org/11377171
Patch from Rafael Weinstein <rafaelw@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12983 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also apply the same fix elsewhere in v8natives.js

BUG=v8:2410

Review URL: https://codereview.chromium.org/11364237
Patch from Adam Klein <adamk@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12982 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This patch causes V8 to disable EXTRA_CHECKS when building in release. You can
still enable the checks in release using a GYP flag.

This patch speeds up Dromeo's dom-traverse by around 4%.

Review URL: https://codereview.chromium.org/11275324
Patch from Adam Barth <abarth@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12981 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://codereview.chromium.org/11413014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12980 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

For Octane, the number of calls go down from 7341629 to 1947880, i.e. they are
reduced by more than 73%. TLS access is not especially cheap, so this exercise
seems worthwhile.

Review URL: https://codereview.chromium.org/11412007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12979 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This implements incremental scanning of large objects using a progress
bar in the page header of such objects. Note that this requires forward
white to gray transitions in the write barrier and hence is disabled by
default for now.

R=ulan@chromium.org,hpayer@chromium.org

Review URL: https://codereview.chromium.org/11362246

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12978 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/11419011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12977 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org
BUG=

Review URL: https://codereview.chromium.org/11412005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12976 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/11417007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12975 ce2b1a6d-e550-0410-aec6-3dcde31c8c00