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mikhail.naganov@gmail.com 56788625b6 Fix CPU profiling for Crankshaft.
The main issue was due to multiple recompilations of functions.  Now
code objects are grouped by function using SFI object address.
JSFunction objects are no longer tracked, instead we track SFI object
moves. To pick a correct code version, we now sample return addresses
instead of JSFunction addresses.

tools/{linux|mac|windows}-tickprocessor scripts differentiate
between code optimization states for the same function
(using * and ~ prefixes introduced earlier).

DevTools CPU profiler treats all variants of function code as
a single function.

ll_prof treats each optimized variant as a separate entry, because
it can disassemble each one of them.

tickprocessor.py not updated -- it is deprecated and will be removed.

BUG=v8/1087,b/3178160
TEST=all existing tests pass, including Chromium layout tests

Review URL: http://codereview.chromium.org/6551011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6902 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2011-02-22 16:31:24 +00:00
benchmarks Promote the current V8 benchmark suite candidate to version 6. 2010-10-07 07:25:22 +00:00
build Initial attempt to add support for using gyp to build V8 itself 2010-12-14 08:16:39 +00:00
include x64: Enable inline smi code patching to reenable the inlined code in 2011-02-09 14:51:38 +00:00
preparser Use the file opened from argv[1] in preparser-process.cc 2010-12-08 10:47:59 +00:00
samples Properly process try/finally blocks. 2011-02-16 11:40:48 +00:00
src Fix CPU profiling for Crankshaft. 2011-02-22 16:31:24 +00:00
test Fix CPU profiling for Crankshaft. 2011-02-22 16:31:24 +00:00
tools Fix CPU profiling for Crankshaft. 2011-02-22 16:31:24 +00:00
.gitignore Strict mode delete of non-configurable property. 2011-02-14 23:41:47 +00:00
AUTHORS Speedup decodeURI/decodeURIComponent by switching from charAt(i) to charCodeAt(i) in Decode. 2011-02-08 13:01:34 +00:00
ChangeLog Prepare push to trunk. We are now working on version 3.1.6. 2011-02-16 12:19:14 +00:00
LICENSE Fix the license info to correctly state Copyright "the V8 project 2011-01-19 09:20:18 +00:00
LICENSE.strongtalk Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.v8 Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.valgrind Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
SConstruct Cygwin support 2011-02-17 16:33:10 +00:00