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immediately if holder has this property or saves binary search on holder if
property doesn't belong to holder.  Of course, in the cases when named getter
returns nothing.

That gives ~20% for dom benchmark/Document Object String Get, speeds up overall
dom_perf (not dramatically) and overall score for peacekeeper.  Strange, but DOM
part of peacekeepr runs somewhat slower.
Review URL: http://codereview.chromium.org/118118

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Review URL: http://codereview.chromium.org/119076


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Removed duplicates comments in assembler-x64.cc.

Review URL: http://codereview.chromium.org/119035


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DeferredInlineBinaryOperation::GenerateInlineCode and remove its
definition.  It was only called from one site and was the only
deferred code object that was split that way into fast-case inline and
slow-case stub.

Review URL: http://codereview.chromium.org/119037

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Review URL: http://codereview.chromium.org/113997

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Review URL: http://codereview.chromium.org/118107

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mod so they do not share code with the other binary operations.  They
now preallocate their fixed registers (eax and edx).  There is now no
frame effect between entries to the deferred call to the stub.

Review URL: http://codereview.chromium.org/118110

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My assumption that log initialization happens somewhere near the stack's bottom is true for V8's sample shell but isn't true for Chromium, causing many otherwise valid stack addresses to be thrown out. The solution proposed is to save stack pointer value for the outermost JS function in ThreadLocalTop similar to c_entry_fp.

Implemented only for IA-32. Currently I'm not dealing with profiling on ARM and x86-64 anyway.

Review URL: http://codereview.chromium.org/112082


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Review URL: http://codereview.chromium.org/115920


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GCC version.

BUG=364
TBR=sgjesse@chromium.org
Review URL: http://codereview.chromium.org/118016

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Also, add a small delay to be sure that all ticks are logged prior to leaving CheckThatProfilerWorks function.

Review URL: http://codereview.chromium.org/114062


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Review URL: http://codereview.chromium.org/115860

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Review URL: http://codereview.chromium.org/113994

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While testing ProfLazyMode stability I encountered a situation when the cycle supposed to run for 200 ms started to run "infinitely" because delta between two int64_t values became negative.

Review URL: http://codereview.chromium.org/115918


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Thanks to Tobias Kaes, an issue with default copy constructor and assignment operator is found and fixed.

BUG=http://code.google.com/p/v8/issues/detail?id=358

Review URL: http://codereview.chromium.org/113992


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Review URL: http://codereview.chromium.org/112066

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TBR=erik.corry@gmail.com
Review URL: http://codereview.chromium.org/115917

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Change the handling of the debug break stack guard. The debug break is no longer ignored when hit inside "system" JavaScript. The reason for this is twofold:

* Running "system" JavaScript with the debug break flag active leads to slow running code while waiting for the break in non "system" JavaScript (one exception to this it is to try to avoid breaks in the clear mirror cache JavaScript code called when leaving the debugger).

* If this happens while processing RegExp running in native code an infinite loop is created as the stack guard handler for RegExp does not move execution forward

Fixed a GC bug in the interrupt handling for RegExp running in native code.

Added test of debug break while in debug message handler callback and debug break while executing a RegExp.
Review URL: http://codereview.chromium.org/115262

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Two simple profiler changes: 1) log sampling rate, 2) check current state before pausing & resuming.

Review URL: http://codereview.chromium.org/113961


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When profiler's memory buffer is filled up, profiling is stopped and it is ensured that the last record in the buffer is "profiler,\"pause\"" thus making the end of profiling session explicit. Otherwise DevTools Profiler would need to guess whether the current profiling session has been stopped.

Tested with Chromium.

Review URL: http://codereview.chromium.org/115859


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before performing debugger property lookup make sure the current context is set to the context active before the debugger was entered.

Make the use of the LookupResult GC safe in debugger property lookup.
Review URL: http://codereview.chromium.org/115855

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Review URL: http://codereview.chromium.org/115857

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Review URL: http://codereview.chromium.org/115816

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I suggest that the lack of initialization causes issue 358 to happen. In Profiler::Disengage an empty TickSample is inserted in order to wake up the Profiler thread. Issue reporter claims that crash happens in LogTickEvent function. My guess is that frames_couint receives a wild value.

Review URL: http://codereview.chromium.org/113939


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The goal of this change is to allow longer profiling sessions and preserve memory when profiler isn't started. The buffer starts with 64K and grows until it reaches the upper limit, which is currently set to 50MB --- according to my evaluations, this is enough for at least 20 minutes of GMail profiling. As we're planning to introduce compression for the profiler log, this time boundary will be significantly increased soon.

To make possible unit testing of the new component, I've factored out Logger's utility classes into a separate source file: log-utils.h/cc. Log and LogMessageBuilder are moved there from log.cc without any semantical changes.

Review URL: http://codereview.chromium.org/115814


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Review URL: http://codereview.chromium.org/113900

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Review URL: http://codereview.chromium.org/113895

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A very long regexp graph can overflow the stack with recursive calls.

Review URL: http://codereview.chromium.org/113894


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Review URL: http://codereview.chromium.org/113841

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to the platform-specific reserved registers.  They are always in use
for their intended purpose, cannot appear in the virtual frame, and
can be freely used without allocation in the code generator.

Review URL: http://codereview.chromium.org/113837

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Review URL: http://codereview.chromium.org/113838


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Prior to this change debug version of the test crashed 2 of 1000 times. After the change no crashes (out of 1000 runs) occured.

Review URL: http://codereview.chromium.org/115772


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This resolves issue 356 (http://code.google.com/p/v8/issues/detail?id=356) thanks to bitRAKE. Changed benchmark version number from 4 to 5 resulting in updates to base.js, README.txt and revisions.html. 

Review URL: http://codereview.chromium.org/113839

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Review URL: http://codereview.chromium.org/113832

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Review URL: http://codereview.chromium.org/115770

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Review URL: http://codereview.chromium.org/113825

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whether people are already in it.
Review URL: http://codereview.chromium.org/113834

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  for scripts.
Review URL: http://codereview.chromium.org/115592

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Review URL: http://codereview.chromium.org/115707

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