[Harmony Wiki] Update of "Jitrino OPT/inline helpers" by Mikhail Fursov

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The following page has been changed by Mikhail Fursov:
http://wiki.apache.org/harmony/Jitrino_OPT/inline_helpers

New page:
''' 'inline_helpers' ''' - provides a mechanism to inline various VM helpers
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The optimization examines every HIR instruction and searches for HIR opcodes that lead to generation of VM helpers. Every suitable for the optimization instruction is replaced with a direct call of a special Java method. Finally the optimization calls inlining of this method.
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The body of the method used as a replacement for complex HIR instruction must be provided by VM component. 
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The method can be can be written using [http://rvm.codehaus.org/docs/api/org/vmmagic/unboxed/package-summary.html org.vmmagic.unboxed] package that allows to use direct memory access from Java.
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Example of 'inline_helpers' configuration from 'server.emconf' file:

{{{

#helper inliner configuration

-XX:jit.SD2_OPT.SD2_OPT_helper_inliner_pipeline.path=ssa
-XX:jit.SD2_OPT.arg.optimizer.inline_helpers.pipeline=SD2_OPT_helper_inliner_pipeline

-XX:jit.SD2_OPT.arg.optimizer.inline_helpers.VM_RT_NEW_RESOLVED_USING_VTABLE_AND_SIZE=on
-XX:jit.SD2_OPT.arg.optimizer.inline_helpers.VM_RT_NEW_RESOLVED_USING_VTABLE_AND_SIZE_hotnessPercent=1

}}}