MIPS: Make object accessors more const-correct.

Port r21897 (1b152ae)

Fix MIPS implementation of READ_DOUBLE_FIELD() to use const parameter.

Original commit message:
Getting closer to making our IsFOO and FOO::cast methods
const-correct...

BUG=
R=gergely@homejinni.com, jkummerow@chromium.org

Review URL: https://codereview.chromium.org/344203005

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21904 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
MIPS: Support LiveEdit.

Port r21895 (210f7aa)

BUG=368580
LOG=Y
R=jkummerow@chromium.org, palfia@homejinni.com

Review URL: https://codereview.chromium.org/349703002

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

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21905 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
MIPS: Fix big-endian after r21774/r21803.

Fix big-endian ordering of InstanceType and BitField by always loading
the pair as a 16-bit value, even in the API accessor. Clean up some
assertions.

R=danno@chromium.org, mtbrandy@gmail.com

Review URL: https://codereview.chromium.org/334403003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21906 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Add missing map check to optimized f.apply(...)

This is a cutdown version of https://codereview.chromium.org/346473002/, which aimed to fix f.call and f.apply. Optimized f.call was removed by r21887, this is what was left.

BUG=386034
LOG=N
R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/348623002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21907 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Introduce intrinsic to expose debug state to generated code.

R=ulan@chromium.org

Review URL: https://codereview.chromium.org/332673002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21908 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Set host_arch to ia32 on machines with a 32bit userland but a 64bit kernel.

I don't know if there are any v8 bots with that configuration, but it seems
like a good idea to have v8 be consistent with chromium and nacl here, so that
this works fine if such a bot is ever set up.

This is similar to https://codereview.chromium.org/342493002/ , but with a
detect_v8_host_arch.py script that handles the additional machine types that
standalone.gypi used to handle.

BUG=368384 possibly?
LOG=Y
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/346643002

Patch from Nico Weber <thakis@chromium.org>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21909 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Revert "Set host_arch to ia32 on machines with a 32bit userland but a 64bit kernel."

This reverts r21909.

Reason: breaks NaCL build.

BUG=
TBR=jochen@chromium.org

Review URL: https://codereview.chromium.org/346223004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21914 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
An object should only be promoted to the old generation if it survived a scavenge operation.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/345523002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21915 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Make our FOO::cast methods const.

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/347073003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21916 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Simplify access checks performed by GetOwnProperty

BUG=
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/339553002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21917 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Remove AccessControl from AccessorPairs, as it's an invalid usecase of AllCan*

BUG=
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/332863003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21918 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Simplify {Enable|Disable}AccessCheck

BUG=
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/334243003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21919 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Re-land "Clusterfuzz identified overflow check needed in dehoisting."

BUG=380092
LOG=N
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/335063005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21920 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Simplify Object::GetElementWithReceiver

Don't inline GetPrototype() to avoid code duplication

BUG=none
R=dcarney@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/331313010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21921 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Remove specialized access checks and overwrites altogether. They are already handled by GetOwnPropertyAttributes (and GetPropertyAttributesWithFailedAccessChecks)

BUG=
R=dcarney@chromium.org

Review URL: https://codereview.chromium.org/331693006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21922 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
X87: Introduce intrinsic to expose debug state to generated code.

port r21908.

original commit message:

BUG=
R=weiliang.lin@intel.com

Review URL: https://codereview.chromium.org/349183002

Patch from Chunyang Dai <chunyang.dai@intel.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21923 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
ARM64: updated literal pool implementation.

Currently the literal pool implemetation is inherited from the arm 32-bit port
and it shares the same limitations: 4k of range and 1000 entries max. In arm64
the load literal has a 1MB range giving us more flexibility.

Immutable entries are now shared.

BUG=
R=rmcilroy@chromium.org

Review URL: https://codereview.chromium.org/338523005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21924 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Add a use counter API

This lets embedders track certain features of v8 and the number of times
they are used

BUG=none
R=svenpanne@chromium.org, marja@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/346233002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21925 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Turn assert into RUNTIME_ASSERT

TBR=dcarney@chromium.org
BUG=

Review URL: https://codereview.chromium.org/350683003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21926 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Partial revert of r21901

Only disable runtime check for sse2 if __SSE2__ is not defined. This
is required for the x87 port

BUG=none
LOG=n
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/350693005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21927 ce2b1a6d-e550-0410-aec6-3dcde31c8c00