Review URL: http://codereview.chromium.org/7017008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7936 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Better support for 'polymorphic' JS and external arrays

Allow  keyed store/load stubs to switch between external array and fast JS arrays without forcing a state transition to the generic stub.

There CL consists of two pieces of functionality. First, code stubs for fast element arrays don't immediately transition to the MEGAMORPHIC state when there's a map mismatch. Second, two ICs are cached per map for fast elements, the MONOMORPHIC version, and a new MEGAMORPHIC version that handles two or more different maps and dispatches to shared stubs to perform the array operation.

Review URL: http://codereview.chromium.org/7036016

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7935 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7034025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7933 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6968010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7931 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TEST=cctest/test-api/OutOfMemoryNested

Review URL: http://codereview.chromium.org/7029028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7930 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix bug 1396: Optimized calls to API functions assumed that the receiver was a JSObject, failed when compiling stub otherwise.

BUG=v8:1396
Review URL: http://codereview.chromium.org/7045002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7929 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

In the case where the default-clause occurs as the first clause,
the case-blocks were not wired up correctly.

BUG=v8:1394
TEST=mjsunit/compiler/regress-1394.js
Review URL: http://codereview.chromium.org/7037023

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7927 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Handle all kind of arguments in the ToBooleanStub. While this is not very thrilling in itself, it is one of several steps to add type recording to this stub. Removed a duplicate check for null in the ARM stub and made a tiny simplification, removing a sub instruction.

As a side note, this change has some positive impact on the performace, e.g. imaging-darkroom is 8.3% faster and ws-ieee754conv is even 19.9% faster. No idea why the speedup is so big in some cases, but never look a gift horse in the mouth... ;-)
Review URL: http://codereview.chromium.org/7042004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7926 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7042006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7924 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7042005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7922 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7037007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7919 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=danno@chromium.org

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7918 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Allow  keyed store/load stubs to switch between external array and fast JS arrays without forcing a state transition to the generic stub.

There CL consists of two pieces of functionality. First, code stubs for fast element arrays don't immediately transition to the MEGAMORPHIC state when there's a map mismatch. Second, two ICs are cached per map for fast elements, the MONOMORPHIC version, and a new MEGAMORPHIC version that handles two or more different maps. Currently, the only array types supported by the MEGAMORPHIC stub are fast elements for objects and JSArrays.

BUG=
TEST=

Review URL: http://codereview.chromium.org/6894003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7917 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

r7909: Optimise the deoptimisation check to improve performance on modern ARM cores.

Assert failure on mozilla/ecma/Date/15.9.3.8-2 and mozilla/ecma/Date/15.9.3.8-4.

R=ricow@chromium.org

Review URL: http://codereview.chromium.org//7037006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7916 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Garbage collector is free to ignore object groups for independent handles and can collect then in minor collections.

Review URL: http://codereview.chromium.org/7031005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7915 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

R==ager@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7039004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7914 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Add HForceRepresentation, to represent the implicit ToNumber applied to the input of a count operation.

BUG=v8:1389

TEST=

Review URL: http://codereview.chromium.org/7033008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7913 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=whesse@chromium.org
Review URL: http://codereview.chromium.org/7017011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7912 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The profiler did not correctly identify when there was a JS frame
on the stack after an exception was thrown.

I also refactored the code to use PopTryHandler macro-instructions on all platforms

BUG=73722
TEST=No more valgrind errors related to v8::internal::StackFrameIterator.
Review URL: http://codereview.chromium.org/7019010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7910 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=none
TEST=none

Review URL: http://codereview.chromium.org//7021007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7909 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Following r7854.

BUG=
TEST=

Review URL: http://codereview.chromium.org//7037004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7908 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also includes minor changes to regexp-macro-assembler.h.

Builds, but won't run until mips port submission is complete. Has
been tested externally.

BUG=
TEST=

Review URL: http://codereview.chromium.org//7038004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7907 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Includes an arch-independent change for FullCodeGenerator::Split()
prototype for mips, which requires two extra parameters.

Compiles, does not run yet. Tested externally.

BUG=
TEST=

Review URL: http://codereview.chromium.org//7019004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7906 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Compiles, but not testable until all of mips port is in place. It
has been tested externally.

BUG=
TEST=

Review URL: http://codereview.chromium.org//7038002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7905 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=kmillikin@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7019008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7903 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TODO: reflective Object methods not handled yet.

BUG=
TEST=

Review URL: http://codereview.chromium.org/7035007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7902 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=1313
TEST=test/mjsunit/external-array.js

Review URL: http://codereview.chromium.org/7014033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7901 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7030012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7896 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fix various places in the code found by improved GCMole.

Review URL: http://codereview.chromium.org/6973063

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7895 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

It compiles, but is not testable until the rest of the mips port
is in place. This has been tested externally.

BUG=
TEST=

Review URL: http://codereview.chromium.org//7032003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7894 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This submission required a small change to arch-indep code to declare
code stub DirectCEntry for mips.

It also required updates to macro-assembler-mips.cc & h and frames-mips.h.

I also made a small change to frames-mips.cc.

This code submission will compile, but is not testable until the majority
of the mips port is in place. It has been tested externally.

BUG=
TEST=

Review URL: http://codereview.chromium.org//7034008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7893 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org//7003030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7892 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Patch by Nicolas Kaiser <nikai@nikai.net>

R=sgjesse@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/7030008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7891 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

it belongs.
Review URL: http://codereview.chromium.org/7015039

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7890 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

has been generated.
Review URL: http://codereview.chromium.org/7015040

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7888 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

1) Add new type JSProxy for representing proxy objects.
   Currently devoid of functionality, i.e., all properties are undefined.

2) Some rudimentary global $Proxy functions to create proxies.

Next step: Hook up getProperty and getOwnProperty handlers. Will probably
require introducing a new LookupResult type, which is a mixture of
INTERCEPTOR (handles any property) and CALLBACK (calls back to JS).
Can we unify this somehow?

TODO: Should probably rename existing Proxy type to something like
"Foreign", to avoid confusion.

Review URL: http://codereview.chromium.org/6932068

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7887 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/7013045

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7885 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6969042

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7884 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/6973053

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7883 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

7.2% and math-cordic by 5.7%.
Review URL: http://codereview.chromium.org/7013025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7882 ce2b1a6d-e550-0410-aec6-3dcde31c8c00