Add a second kind of HandleScope that ties the lifetime of Handles created in its scope to the lifetime of a given CompilationInfo.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10640012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11939 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10704002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11936 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:873
TEST=math-floor-negative.js

Review URL: https://chromiumcodereview.appspot.com/10636057

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11935 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=133723

Review URL: https://chromiumcodereview.appspot.com/10659030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11934 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=v8:2207

Review URL: https://chromiumcodereview.appspot.com/10636055

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11933 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=v8:1374
TEST=test-compiler/SplitConstantsInFullCompiler

Review URL: https://chromiumcodereview.appspot.com/10662045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11932 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Expose allocated and used byte counters for the different spaces. The goal is
to monitor those values both on page cycles and via UMA

BUG=v8:2201
TEST=none

Review URL: https://chromiumcodereview.appspot.com/10657022
Patch from Jochen Eisinger <jochen@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11931 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org
TEST=cctest/test-api/Threading2

Review URL: https://chromiumcodereview.appspot.com/10658033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11930 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Port r11915 (4c749256)

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10661049
Patch from Akos Palfi <palfia@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11929 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

A test was broken by r11927

Review URL: https://chromiumcodereview.appspot.com/10667025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11928 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/10639006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11927 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=verwaest@chromium.org
BUG=chromium:132744
TEST=cctest/test-dictionary/ObjectHashTableCausesGC

Review URL: https://chromiumcodereview.appspot.com/10658016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11926 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10668022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11925 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=rossberg@chromium.org
BUG=chromium:132744
TEST=mjsunit/harmony/collections

Review URL: https://chromiumcodereview.appspot.com/10658014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11924 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=v8:2119
TEST=regress/regress-2119.js

Review URL: https://chromiumcodereview.appspot.com/10659011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11923 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Instead of overwriting non-live transitions with NULL_DESCRIPTORs, we remove them from the array by compacting the array (shifting live values to the left) and in-place trimming the array. If the final descriptor array contains no live values (only contained transitions which are now all cleared), we move bit_field3 back from the descriptor array to the map. The descriptor array itself will be collected in the next GC.

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10575032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11922 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10579041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11921 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/10656018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11920 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10668019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11917 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Revert r11835 'Unify promotion and allocation limit computation' due to V8 Splay performance regression on Mac.

R=mstarzinger@chromium.org
BUG=134183

Review URL: https://chromiumcodereview.appspot.com/10664013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11916 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10665021

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11915 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/10637003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11914 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This makes sure the literal boilerplates array is correctly shared
together with optimized code when caching of optimized code is enabled.
It also enabled said caching by default again.

R=ulan@chromium.org
BUG=v8:2193
TEST=mjsunit/regress/regress-2193

Review URL: https://chromiumcodereview.appspot.com/10649008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11911 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10633027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11908 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=134055

TEST=mjsunit/regress/regress-crbug-134055

Review URL: https://chromiumcodereview.appspot.com/10630027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11907 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10642019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11906 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=mstarzinger@chromium.org
BUG=v8:2193
TEST=

Review URL: https://chromiumcodereview.appspot.com/10626015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11905 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This is a temporary fix to prevent excessive expansion of old-space
caused by inaccuracies in lazy sweeper advancing. We actually don't
intend to sweep any pages eagerly, but that requires further changes
to lazy sweeping.

R=ulan@chromium.org,erik.corry@gmail.com
BUG=v8:2194

Review URL: https://chromiumcodereview.appspot.com/10640002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11904 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10640018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11903 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=ulan@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10627015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11902 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This adapts the heuristics that detect fragmented pages to reduce memory
footprint for spaces with over reserved memory. This minimizes external
fragmentation caused by pages that cannot be released to the OS because
of just a few live objects on them.

R=erik.corry@gmail.com
TEST=cctest/test-heap/ReleaseOverReservedPages

Review URL: https://chromiumcodereview.appspot.com/10629004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11901 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Adjust idle notification handler to do full GC at the end of idle round in order to compact code space.

R=mstarzinger@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10639002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11900 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

- Ensure that IsFound() is only used when not in combination with other
  checks. To do so, the default type is NONEXISTENT rather than NORMAL;
  and NotFound() also resets the type to NONEXISTENT.
- Use test methods rather than .type() == A_PROPERTY_TYPE.

Review URL: https://chromiumcodereview.appspot.com/10626004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11899 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=rossberg@chromium.org
TEST=cctest/test-decls/ExistsInHiddenPrototype

Review URL: https://chromiumcodereview.appspot.com/10628002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11896 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=jkummerow@chromium.org
BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10634002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11893 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R=yangguo@chromium.org
BUG=v8:2166

Review URL: https://chromiumcodereview.appspot.com/10630003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11892 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The assertion failure I ran into is in Regress1516, where collector falls back to SCAVENGER, during x64.debug.check run.

Zheng Liu
zheng.z.liu@intel.com

Review URL: https://chromiumcodereview.appspot.com/10536199
Patch from Zheng Liu <zheng.z.liu@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11889 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=
TEST=

Review URL: https://chromiumcodereview.appspot.com/10578039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11888 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Only handles when x is int32 and y is int32 constant.

BUG=v8:2038

Currently implemented by imul (not fpmul).
x86 and x64 algorithm differs a bit.
x86 implementation is kind of cumbersome, but I couldn't think of better ways.

Review URL: https://chromiumcodereview.appspot.com/10382033
Patch from Zheng Liu <zheng.z.liu@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11887 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: https://chromiumcodereview.appspot.com/10559083

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11886 ce2b1a6d-e550-0410-aec6-3dcde31c8c00