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| - | == Fine-grain optimization project == | + | = Documentation Page = |
| - | Yuanjie Huang (ICT, China)
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| - | This project aims to provide fine-grain optimization selection and tuning abilities in GCC, and thus enable GCC to tune default optimization heuristic of the compiler or fine optimizations for a given program on a given architecture entirely automatically using statistical and machine learning techniques from the MILEPOST project.
| + | *[[CTools:ICI:Projects:GSOC09:Fine_grain_tuning|Fine-grain optimization tuning]] |
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| - | === ICI Events ===
| + | *[[CTools:ICI:Projects:GSOC09:Function_cloning_and_program_instrumentation|Function cloning and program instrumentation]] |
| - | ICI events added to the framework for fine-grain tuning are documented here.
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| - | === ICI Features ===
| + | *[[CTools:ICI:Projects:GSOC09:Scripts|Scripts for these projects]] |
| - | ICI features added to the framework for fine-grain tuning are documented here.
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| - | {| border="1" cellspacing="0" cellpadding="3" style="text-align:left;"
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| - | ! Feature name
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| - | ! Type of contents
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| - | ! Description
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| - | |- | + | |
| - | | <tt>"dummy"</tt>
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| - | | array of strings, i.e., char **
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| - | | dummy feature here.
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| - | |}
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| - | === Plugins ===
| + | *[[CTools:ICI:Projects:GSOC09:Ideas_and_todos|Ideas and todos]] |
| - | Plugins developed for fine-grain tuning are documented here. These plugins are developed to work with ICI-2.0 interface.
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| - | ==== adapt-passes ====
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| - | '''Description'''
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| - | The function of this plugin depends on ICI_ADAPT_CONTROL environmental variable, which can be either set to 1 to record passes for each function into XML files or set to 2 to reuse passes from XML files to substitute passes in GCC compiling process.
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| - | '''Required Events and parameters'''
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| - | <ul>
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| - | <li><b>"pass_execution"</b>: this event is triggered when a GCC pass is about to run.</li>
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| - | <li><b>"all_passes_manager"</b></li>
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| - | <li><b>"avoid_gate"</b></li>
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| - | </ul>
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| - | <!-- TODO: add other events needed, and give links to them. -->
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| - | '''State'''
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| - | This plugin now can record and reuse optimization passes without problem, with the following issues to solve:
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| - | <ul>
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| - | <li>The compilation won't fall to default compilation process when no corresponding XML can be found.</li>
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| - | <li>The plugin cannot handle interprocedual passes well.</li>
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| - | </ul>
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