there throughout the binary op stub (used for checking and
creating heap numbers).
Review URL: http://codereview.chromium.org/2843010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4897 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/2840004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4896 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

If a two-byte string only contains ascii characters, then we can save
memory when flattening a cons string containing it. Similarly we can
use this in Array.prototype.join implementation. To track this a new
bit is added to instance type. This bit is used as a hint in generated
code and in runtime functions.

To enable testing a new V8 extension is added controlled by
--expose-externalize-string flag.

Review URL: http://codereview.chromium.org/2762008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4894 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Use direct reading and writing of integers from Smi fields.
Change RecordWrite with 0 offset to take untagged index instead of
smi tagged index.

Review URL: http://codereview.chromium.org/2872005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4893 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/2846012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4891 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/2824007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4890 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

be in a register anymore. Code also updated to use the bitfield
instructions when available.  This is a commit of
http://codereview.chromium.org/2845003/show for Rodolph Perfetta.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4889 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

assembler*.h files to make clang happy. There was no reason for having
the definition in the -inl.h files in the first place.

Review URL: http://codereview.chromium.org/2825008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4888 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

When lhs and rhs are positive smis and rhs is a power of two perform modulus by masking.
Review URL: http://codereview.chromium.org/2873001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4884 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=738
TBR=sgjesse@chromium.org

Review URL: http://codereview.chromium.org/2800009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4883 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/2864003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4879 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

should always use ucomisd.

Add missing pop from floating-point stack in case of allocation failure.
Review URL: http://codereview.chromium.org/2831009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4878 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Costs an extra move because the result is calculated in a scratch register
and only moved to destination on non-overflow in order to preserve source
registers in case of overflow.

Review URL: http://codereview.chromium.org/2823004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4877 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/2806009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4874 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Also edited ic-ia32.cc for clarity and better formatting.

Review URL: http://codereview.chromium.org/2853003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4873 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

shifts. Leads to fewer collisions.

Review URL: http://codereview.chromium.org/2809012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4872 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/2742007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4867 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=sgjesse@chromium.org

Review URL: http://codereview.chromium.org/2843002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4865 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/2822009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4864 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/2838001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4863 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

(fixes bug 619).

This also fixes a bug in GetOwnProperty in runtime.cc discovered by
the new test cases. That part of the code was not testable before
since we had no way of correctly defining properties on elements.

Review URL: http://codereview.chromium.org/2832001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4862 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Build error:
test/cctest/test-api.cc: In function 'void ExternalArrayInfoTestHelper(v8::ExternalArrayType)':
test/cctest/test-api.cc:10069: warning: control may reach end of non-void function 'int ExternalArrayElementSize(v8::ExternalArrayType)' being inlined

TBR=ager@chromium.org
Review URL: http://codereview.chromium.org/2826002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4861 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=737
TEST=test-api/PixelArrayInfo, test-api/ExternalArrayInfo
Review URL: http://codereview.chromium.org/2818003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4860 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

KExponentBits -> kExponentBits.

TBR=erik.corry@gmail.com

Review URL: http://codereview.chromium.org/2835001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4859 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=whesse@chromium.org
Review URL: http://codereview.chromium.org/2824002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4858 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

global object through the context instead.

Review URL: http://codereview.chromium.org/2822003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4857 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Generating code for function return on ARM is now aligned with the other platforms. The first non-shadowed return statement encountered will emit code for function return and all other returns including the fall through at the bottom of a function will jump to that.
Review URL: http://codereview.chromium.org/2815003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4856 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

don't fit in the instruction.  Use ubfx and sbfx more.
Review URL: http://codereview.chromium.org/2826001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4855 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/2772004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4854 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

megamorphic call sites. This removes a lot of contention in the
tables.

Review URL: http://codereview.chromium.org/2813002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4853 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/2824001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4850 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Naive algorithm for to update RSets for a span is rather inefficient
as it performs many unnecessary operations (retrieving a mask, updating
it with the same bit as many pointers go into a single region).

Review URL: http://codereview.chromium.org/2727009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4849 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

There is no test in this patch, because the test uses V8 API,
which is coming in a separate change list.

Review URL: http://codereview.chromium.org/2722005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4848 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

committing.

Review URL: http://codereview.chromium.org/2764009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4847 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/2745014

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4846 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4844 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fixed hash code computation on ia32 and x64 to match the runtime
system (change arithmetic shift right to logical shift right).

Review URL: http://codereview.chromium.org/2731007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4843 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Puts a check into the code flushing test to only perform this if the
flush_code flag is set to true. 


Review URL: http://codereview.chromium.org/2734006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4842 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Since we have an issue with code flusing on the trybots preventing us
from pushing to chromium, a new flag for enabling code flushing,
--flush_code, is introduced with this change (defaulting to false).

Review URL: http://codereview.chromium.org/2734005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4840 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/2754004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4836 ce2b1a6d-e550-0410-aec6-3dcde31c8c00