When a function is called with a value type as the receiver this is now boxed as an object.

This is a low-impact solution where the receiver is only boxed when required. For IC calls to the V8 builtins values are not boxed and as most of the functions on String.prototype, Number.prototype and Boolean.prototype are sitting there most IC calls on values will not need any boxing of the receiver.

For calls which are not IC calls but calls through the CallFunctionStub a flag is used to determine whether the receiver might be a value and only when that is the case will the receiver be boxed.

No changtes to Function.call and Function.apply - they already boxed values. According to the ES5 spec the receiver should not be boxed for these functions, but current browsers have not adopted that change yet.

BUG=223
TEST=test/mjsunit/value-wrapper.js
TEST=test/mjsunit/regress/regress-crbug-3184.js
Review URL: http://codereview.chromium.org/542087

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3617 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

62998 which corrects some errors in the tests that will otherwise make us 
(wrongly) fail.

Review URL: http://codereview.chromium.org/545079

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3616 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

in particular).

  * Called function is passed on the stack instead of
    using a static variable.

  * Builtins that don't need the called function don't
    get it.

  * Made is_construct statically known to HandleApiCall
    by setting custom construct stub for API functions.

Review URL: http://codereview.chromium.org/536065

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3613 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

* Refactor VisitProperty to use the platform-specific methods for emitting the IC calls.
* Refactor recording of source positions in the top-level compiler.
* Correct the recorded source positions for assignments and property loads.
* Fix bug on x64 where source positions were not recorded before a calling a call-IC.
* Correct some inconsistencies between IA-32 and X64 top-level code generator.

We now pass all regression tests with 
--always-fast-compiler.

Review URL: http://codereview.chromium.org/550043

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3612 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Instead of returning the empty string when indexing
a string out of bounds we now correctly return undefined.

Review URL: http://codereview.chromium.org/542089

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3611 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Replace runtime call to NumberAdd with call to binary op stub.

Until now the top-level compiler always called a runtime function
for count operations. 

In some places we expected in the JS builtins smis as arguments.
If we perform a count operation before all smis would get converted into
heap numbers by the runtime number add function and result in a runtime 
assert.

Also: Add missing debugger information in the top-level compiler for 
do-while loops.


Review URL: http://codereview.chromium.org/548029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3610 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/548041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3607 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

* Add a test case that generates a serialization of a single flat string.
Review URL: http://codereview.chromium.org/542073

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3606 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

callback property.

Return undefined for Object.getOwnPropertyDescriptor on an API defined
callback properties for now.

Review URL: http://codereview.chromium.org/542074

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3605 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Fixes compiler warnings on Windows.

TBR=antonm@chromium.org

Review URL: http://codereview.chromium.org/549049

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3604 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/545056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3603 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/543057

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3602 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

compatibility with Safari.

Review URL: http://codereview.chromium.org/543056

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3601 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

drop below threshold.

Review URL: http://codereview.chromium.org/509035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3600 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/549035

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3599 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

the code generators.

These uses broke the rules of the class because it was safe to do so,
but there was no real reason to do it that way.
Review URL: http://codereview.chromium.org/543041

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3598 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/536042

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3597 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

We did not correcty pass the global receiver object in some cases. 
This change fixes this bug on all three platforms.

Review URL: http://codereview.chromium.org/542053

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3596 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Enabled es5conform tests for new array methods and corrected errors that was discovered by enabling these.

Added new es5 methods:
GetOwnPropertyDescriptor
GetOwnProperty
FromPropertyDescriptor

Review URL: http://codereview.chromium.org/546032

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3595 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Do abstract the setting and restoring of 'argument' state into a
function that takes arguments.

Do not set the argument state in the code generator unless it
represents arguments to a recursive call to Visit.

Review URL: http://codereview.chromium.org/550010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3594 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

the stack instead of popping it - it is needed by the slow case.

Review URL: http://codereview.chromium.org/546031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3593 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=551
Review URL: http://codereview.chromium.org/541027

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3592 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Landing http://codereview.chromium.org/548007

TBR=piman@chromium.org
Review URL: http://codereview.chromium.org/549033

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3591 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Landing of http://codereview.chromium.org/549018.

TBR=piman@chromium.org


Review URL: http://codereview.chromium.org/546030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3590 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=kasperl@chromium.org



git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3589 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

TBR=kasperl@chromium.org



git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3588 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

When initializing the special local variable containing the reference to the enclosing 
function in named functions we now (correctly) emit an INIT_CONST instead of INIT_VAR,
and we correctly bail out in the top-level code generator.

Also part of this change is adding missing statement position information 
for some statements in the top-level code generator.

Review URL: http://codereview.chromium.org/536029

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3587 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3586 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/541026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3585 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

for partial snapshots.  After reserving space we can be sure that allocations
will happen linearly (no GCs and no free-list allocation).  This change also
contains the start of the partial snapshot support, which, however is not yet
completed or tested.
Review URL: http://codereview.chromium.org/545026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3584 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

fixups code on ARM.
Review URL: http://codereview.chromium.org/545025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3583 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

instruction sequence for jumps:

  mov(ip, Operand(target, rmode), LeaveCC, cond);
  bx(ip, cond)

Changed a JS call in the compare stub to a tail call to avoid GC
problems where the pushed return address is not updated on GC.
Review URL: http://codereview.chromium.org/549022

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3582 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

guide.

Review URL: http://codereview.chromium.org/541024

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3581 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

* Rename the operation of filling a context with a value.  Formerly it
  was 'Move', now it's 'Apply' so as to avoid confusion with various
  other Moves (eg, in the toplevel codegen, in the macro assemblers).

* Use the abstraction Drop rather than math on the stack pointer.

* Add a predicate on AST expression nodes to abstract a repeated test
  whether we should us a regular (named) IC or a keyed IC.

Review URL: http://codereview.chromium.org/546006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3580 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=572
Review URL: http://codereview.chromium.org/549020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3579 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

BUG=552
Review URL: http://codereview.chromium.org/543010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3578 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Added newly added instructions to test-disasem-ia32.cc and implemented the missi
ng ones in the disasembler.

Added some asserts to 8-bit instructions which only work with eax, ebx, ecx and
edx (al, bl, cl and dl).

Removed the loope instruction.
Review URL: http://codereview.chromium.org/548002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3577 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

The subb and the loop instructions are also added to the IA-32 disassembler.

Review URL: http://codereview.chromium.org/541008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3576 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Review URL: http://codereview.chromium.org/542010


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3575 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

This fixes building D8 when SCons cannot figure the build environment and it is passed using the env argument. This is usually only used when building with Visual Studio 2008.
Review URL: http://codereview.chromium.org/542009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3574 ce2b1a6d-e550-0410-aec6-3dcde31c8c00