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'''Common page for GSOC09 and other developments in summer 2009: function cloning, fine-grain optimizations, program instrumentation:''' | '''Common page for GSOC09 and other developments in summer 2009: function cloning, fine-grain optimizations, program instrumentation:''' | ||
| + | |||
| + | ---- | ||
| + | |||
| + | == Fine-grain optimization project == | ||
| + | Yuanjie Huang | ||
| + | === Plugins === | ||
| + | Plugins developed for fine-grain tuning are documented here. These plugins are developed to work with ICI-2.0 interface. | ||
| + | ==== adapt-passes ==== | ||
| + | '''Description''' | ||
| + | |||
| + | 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. | ||
| + | |||
| + | '''Required Events and parameters''' | ||
| + | <ul> | ||
| + | <li><b>pass_execution</b>: this event is triggered when a GCC pass is about to run.</li> | ||
| + | <li><b>all_passes_manager</b></li> | ||
| + | <li><b>avoid_gate</b></li> | ||
| + | </ul> | ||
| + | <!-- TODO: add other events needed, and give links to them. --> | ||
| + | |||
| + | '''State''' | ||
| + | This plugin now can record and reuse optimization passes without problem, with the following issues to solve: | ||
| + | <ul> | ||
| + | <li>The compilation won't fall to default compilation process when no corresponding XML can be found.</li> | ||
| + | <li>The plugin cannot handle interprocedual passes well.</li> | ||
| + | </ul> | ||
Revision as of 11:58, 25 June 2009
Common page for GSOC09 and other developments in summer 2009: function cloning, fine-grain optimizations, program instrumentation:
Fine-grain optimization project
Yuanjie Huang
Plugins
Plugins developed for fine-grain tuning are documented here. These plugins are developed to work with ICI-2.0 interface.
adapt-passes
Description
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.
Required Events and parameters
- pass_execution: this event is triggered when a GCC pass is about to run.
- all_passes_manager
- avoid_gate
State This plugin now can record and reuse optimization passes without problem, with the following issues to solve:
- The compilation won't fall to default compilation process when no corresponding XML can be found.
- The plugin cannot handle interprocedual passes well.