Reviewers: Jakob,
Message:
Please take a look.
Description:
Reland r11425 "Re-enable optimization for hot functions that have
optimization
disabled due to many deopts."
Fix performance regressions introduced in r11425 by
- counting number of function deoptimizations instead of function
optimizations,
- packing several counters into one field of shared function info.
BUG=v8:2040,121196
[email protected]
Please review this at http://codereview.chromium.org/10534063/
SVN Base: https://v8.googlecode.com/svn/branches/bleeding_edge
Affected files:
M src/deoptimizer.cc
M src/heap.h
M src/heap.cc
M src/ia32/lithium-codegen-ia32.cc
M src/objects-inl.h
M src/objects.h
M src/objects.cc
M src/runtime-profiler.cc
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