forked from OSchip/llvm-project
647 lines
16 KiB
HTML
647 lines
16 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
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"http://www.w3.org/TR/html4/strict.dtd">
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<!-- Material used from: HTML 4.01 specs: http://www.w3.org/TR/html401/ -->
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<html>
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<head> <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>Polly - Todo</title>
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<link type="text/css" rel="stylesheet" href="menu.css">
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<link type="text/css" rel="stylesheet" href="content.css">
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</head>
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<body>
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<div id="box">
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<!--#include virtual="menu.html.incl"-->
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<div id="content">
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<h1> TODO </h1>
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<h2> Overview</h2>
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<ul>
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<li><a href="#phase3">Phase 4</a></li>
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<li><a href="#phase3">Phase 3 - Improve Robustness, Interoperability and
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Optimizations (ongoing)</a></li>
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<li><a href="#llvm">Polly as a LLVM Project (Finished February 2012)</a></li>
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<li><a href="#phase2">Phase 2 - First Optimizations and Enhanced User Experience (Finished
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February 2012)</a></li>
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<li><a href="#phase1">Phase 1 - Get Something Working (Finished October 2010)</a>
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</li>
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</ul>
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<h2> Individual Phases</h3>
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<h3 id="phase4"> Phase 4</h3>
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<table class="wikitable" cellpadding="2">
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<p> </p>
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<tbody>
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<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Infrastructure </th></tr>
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<tr style="background: rgb(239, 239, 239)">
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<th width="400px"> Task </th>
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<th width="150px"> Status </th>
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<th> Owner </th>
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</tr>
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<tr>
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<th align="left"> Move to isl C++ bindings
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</th><td align="center" class='open'> Open
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</td><td>
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</td>
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</tr>
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<th align="left"> - Add isl C++ bindings generator to isl
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</th><td align="center" class='open'> Open
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</td><td>
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</td>
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</tr>
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<tr>
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<th align="left"> Add isl as an external library to Polly SVN
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</th><td align="center" class='open'> Open
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</td><td>
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</td>
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</tr>
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<tr>
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<th align="left"> Compile-time: Speed up transformations
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</th><td align="center">
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</td><td>
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</td>
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</tr>
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<th align="left"> - Optimize isl_int for small integers
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</th><td align="center" class='open'> Open
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</td><td>
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</td>
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</tr>
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<tr>
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<th align="left"> Compile-time: Minimize SCoP detection time
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</th><td align="center" class='open'> Open
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</td><td>
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</td>
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</tr>
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<th align="left"> - Reconsider pass-ordering (move Polly later)
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</th><td align="center" class='open'> Open
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</td><td>
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</td>
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</tr>
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<tr><td colspan='4'> </td></tr>
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<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Increase coverage
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</th></tr>
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<tr style="background: rgb(239, 239, 239)">
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<th width="400px"> Task </th>
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<th width="150px"> Status </th>
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<th> Owner </th>
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</tr>
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<tr>
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<th align="left">
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Support for Modulos
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left">
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Boolean Combinations
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left">
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Unsigned Integers
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left">
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Pointer Comparisions
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<tr><td colspan='4'> </td></tr>
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<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Polly as an
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analysis </th></tr>
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<tr style="background: rgb(239, 239, 239)">
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<th width="400px"> Task </th>
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<th width="150px"> Status </th>
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<th> Owner </th>
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</tr>
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<tr>
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<th align="left">
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Model scalars dependences directly in Polly
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</th><td align="center" class='done'> Done
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</td><td>
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</td></tr>
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<tr>
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<th align="left">
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Code generate scalar dependences
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left">
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Model PHI dependences directly in Polly
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left">
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Code generate PHI dependences
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left"> <a href="http://llvm.org/bugs/show_bug.cgi?id=12398">Remove
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the need for independent blocks</a>
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</th><td class="open"> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left">
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Remove polly-prepare pass
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<tr><td colspan='4'> </td></tr>
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<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Correctness in
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cornercases </th></tr>
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<tr style="background: rgb(239, 239, 239)">
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<th width="400px"> Task </th>
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<th width="150px"> Status </th>
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<th> Owner </th>
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</tr>
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<tr>
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<th align="left"> <a href="http://llvm.org/bugs/show_bug.cgi?id=10381">Derive
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optimal types (instead of always using i64)</a>
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</th><td class="open"> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left"> <a href="http://llvm.org/bugs/show_bug.cgi?id=12397">Model
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integer wrapping</a>
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr
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<tr><td colspan='4'> </td></tr>
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<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Optimize Julia
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code with Polly
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analysis </th></tr>
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<tr style="background: rgb(239, 239, 239)">
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<th width="400px"> Task </th>
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<th width="150px"> Status </th>
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<th> Owner </th>
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</tr>
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<th align="left">
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Integrate Polly into Julia
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left">
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Eliminate run-time bounds checks
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left"> - Reconsider unreachables in post-dominance tree
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<th align="left"> - Actually eliminate statements
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<tr><td colspan='4'> </td></tr>
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<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Improved
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Optimizations in Polly
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</th></tr>
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<tr style="background: rgb(239, 239, 239)">
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<th width="400px"> Task </th>
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<th width="150px"> Status </th>
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<th> Owner </th>
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</tr>
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<th align="left">
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Multi-level tiling
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left">
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Register Tiling
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left">
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Full/partial tile separation for vectorization
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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<th align="left">
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Loop interchange after vectorization to maximize stride-one accesses
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</th><td align="center" class='open'> Open
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</td><td>
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</td></tr>
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</table>
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<h3 id="phase3"> Phase 3 - Improve Robustness, Interoperability and
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Optimizations (ongoing)</h3>
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<table class="wikitable" cellpadding="2">
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<p> </p>
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<tbody>
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<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Frontend </th></tr>
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<tr style="background: rgb(239, 239, 239)">
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<th width="400px"> Task </th>
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<th width="150px"> Status </th>
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<th> Owner </th>
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</tr>
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<tr>
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<th align="left"> Non-affine access functions
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</th><td align="center" class='done'> Done, needs testing
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</td><td>Marcello
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</td>
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</tr>
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<tr>
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<tr>
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<th align="left"> <a
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href="http://llvm.org/bugs/show_bug.cgi?id=12403">Variable-size
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multi-dimensional arrays</a>
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</th><td align="center" class='done'> Done
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</td><td>Sebastian
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</td></tr>
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<tr>
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<th align="left"> <a
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href="http://llvm.org/bugs/show_bug.cgi?id=12407">Derive information for
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the SCoP context
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</a>
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</th>
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<td align="center" class='nice'> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left"> <a href="http://llvm.org/bugs/show_bug.cgi?id=12402">Finer
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grained statements</a>
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</th><td align="center" class='nice'> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left"> Detect reductions
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</th><td align="center" class='done'>Done
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</td><td>Johannes
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</td></tr>
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<tr>
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<th align="left"> Generate code for reductions
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</th><td align="center" class='niceinprogress'>in progress
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</td><td>Johannes
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</td></tr>
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<tr>
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<th align="left"> Assume static sized arrays are only accessed in-bounds
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</th><td align="center" class='done'>Done
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</td><td>Tobias
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</td></tr>
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<tr><td colspan='4'> </td></tr>
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<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Optimizer </th></tr>
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<tr style="background: rgb(239, 239, 239)">
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<th width="400px"> Task </th>
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<th width="150px"> Status </th>
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<th> Owner </th>
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</tr>
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<tr>
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<th align="left"> <a href="http://llvm.org/bugs/show_bug.cgi?id=12405">Polyhedral
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dead code elimination</a>
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</th><td class="done">Done
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</td><td>
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</td></tr>
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<tr><td colspan='4'> </td></tr>
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<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Back End</th></tr>
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<tr style="background: rgb(239, 239, 239)">
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<th width="400px"> Task </th>
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<th width="150px"> Status </th>
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<th> Owner </th>
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</tr>
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<tr>
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<th align="left"> OpenMP code generation support in isl backend
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(requirement to drop CLooG)
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</th><td class="done"> Done
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</td><td> Tobias
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</td></tr>
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<tr>
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<th align="left"> Run-time alias checks
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</th><td class="done"> Done
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</td><td>Johannes
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<tr>
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<th align="left"> <a
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href="http://polly.llvm.org/documentation/gpgpucodegen.html">GPGPU Code
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Generation</a>
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</th><td class="niceinprogress">in progress
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</td><td>
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Yabin
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</td></tr>
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<tr>
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<th align="left"> <a
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href="http://polly.llvm.org/documentation/memaccess.html">Allow optimizers to
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change memory access functions</a>
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</th><td class="done"> Done
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</td><td>Johannes
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</td></tr>
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<tr>
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<th align="left"> <a href="http://llvm.org/bugs/show_bug.cgi?id=12406">Make code
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generation independent of the clast</a>
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</th><td class="done">Done
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</td><td>
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</td></tr>
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<tr>
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<tr><td colspan='4'> </td></tr>
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<tr><th colspan="3" style="background: rgb(239, 239, 239);"> General</th></tr>
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<tr style="background: rgb(239, 239, 239)">
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<th width="400px"> Task </th>
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<th width="150px"> Status </th>
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<th> Owner </th>
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</tr>
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<tr>
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<th align="left"> Teach bugpoint to extract regions
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</th><td class="nice"> Open
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</td><td>
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</td></tr>
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<tr>
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<th align="left"> Add <a
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href="http://www.cse.ohio-state.edu/~pouchet/software/polybench/">Polybench
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3.2</a> to the LLVM test suite
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</th><td class="done"> Done
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</td><td>
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</td></tr>
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<tr>
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<th align="left"> Build against an installed LLVM
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</th><td class="done"> Done<br />
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</td><td>
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</td></tr>
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<tr>
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<th align="left"> Setup buildbot regression testers using LNT
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</th><td class="done"> Done
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</td><td> Tobias
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</td></tr>
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</tbody></table>
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<h3 id="llvm"> Polly as a LLVM Project (Finished February 2012)</h3>
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<table class="wikitable" cellpadding="2">
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<tbody>
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<tr style="background: rgb(239, 239, 239);">
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<th>Task
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</th><th> Status
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</th><th>Owner
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</th></tr>
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<tr>
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<th align="left"> Move to LLVM SVN
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</th><td class="done" align="center">
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<a
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href="http://llvm.org/svn/llvm-project/polly"
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>http://llvm.org/svn/llvm-project/polly</a>
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</td><td> Tobias
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</td></tr>
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<tr>
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<th align="left"> Git mirror
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</th><td class="done" align="center">
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git://llvm.org/git/polly.git
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</td><td> Tobias
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</td></tr>
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<tr>
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<th align="left"> Commit mails
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</th><td class="done" align="center">
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llvm-commits@cs.uiuc.edu
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</td><td> Tobias
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</td></tr>
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<tr>
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<th align="left"> LLVM Bugzilla category
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</th><td class="done" align="center">
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<a href="http://llvm.org/bugs/enter_bug.cgi?product=Projects">LLVM Bugzilla</a>
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<br />
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(Product is 'Projects', Component is 'Polly')
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</td><td> Tobias
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<tr>
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<th align="left"> Website
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</th><td class="done" align="center">
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<a href="http://polly.llvm.org">http://polly.llvm.org</a>
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</td><td> Tobias
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</td></tr>
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<tr>
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<th align="left">Buildbot that runs 'make polly-test'
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</th><td class="done" align="center">
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<a href="http://lab.llvm.org:8011/console">Buildbot</a>
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</td>
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<td> Tobias, Andreas
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</td></tr>
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</th><td>
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</td></tr>
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</tbody></table>
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<h3 id="phase2"> Phase 2 - First Optimizations and Enhanced User Experience (Finished
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February 2012)</h3>
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<p>
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First optimizations to show the usefullness of Polly and enhance the user
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experience. We also try to increase the amount of code we can optimize.
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</p>
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<table class="wikitable" cellpadding="2">
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<tbody>
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<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Frontend </th></tr>
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<tr style="background: rgb(239, 239, 239)">
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<th width="400px"> Task </th>
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<th width="150px"> Status </th>
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<th> Owner </th>
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</tr>
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<tr>
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<tr>
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<th align="left"> Allow parameters in access functions
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</th><td align="center" class='done'> Done
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</td><td> Tobias
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</td></tr>
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<tr>
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<th align="left"> Improved Scalar Evolution parsing
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</th><td align="center" class='done'> Done
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</td><td> Tobias
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</td></tr>
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<tr>
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<th align="left"> (Graphical) user feedback on Scop Detection
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</th><td align="center" class='done'> Done
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</td><td> Tobias
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</td></tr>
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<tr><td colspan='4'> </td></tr>
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<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Optimizer </th></tr>
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<tr style="background: rgb(239, 239, 239)">
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<th width="400px"> Task </th>
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<th width="150px"> Status </th>
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<th> Owner </th>
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</tr>
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<tr>
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<th align="left"> Dependency Analysis
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</th><td class="done" align="center"> Done
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</td><td> Tobias
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</td></tr>
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<tr>
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<tr>
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<th align="left"> Optimizer - Connect Pluto (through PoCC)
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</th><td class="done" align="center"> Done
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</td><td> Tobias
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</td></tr>
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<tr>
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<tr>
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<th align="left"> Optimizer - Add ISL internal Pluto like optimizer
|
|
</th><td class="done" align="center"> Done
|
|
</td><td> Tobias
|
|
</td></tr>
|
|
|
|
<tr>
|
|
<th align="left"> Import/Export - SCoPLib 0.2 (needed for PoCC)
|
|
</th><td class="done" align="center">Done
|
|
|
|
</td><td> Tobias
|
|
</td></tr>
|
|
<tr><td colspan='4'> </td></tr>
|
|
<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Back End</th></tr>
|
|
<tr style="background: rgb(239, 239, 239)">
|
|
<th width="400px"> Task </th>
|
|
<th width="150px"> Status </th>
|
|
<th> Owner </th>
|
|
</tr>
|
|
<tr>
|
|
<th align="left">SIMD code generation for trivially vectorizable loops
|
|
</th><td class="done">Done
|
|
</td><td>Tobias
|
|
</td></tr>
|
|
<tr>
|
|
<th align="left">OpenMP code generation
|
|
</th><td class="done">Done
|
|
</td><td> Raghesh, Tobias
|
|
|
|
</td></tr>
|
|
<tr>
|
|
<tr><td colspan='4'> </td></tr>
|
|
<tr><th colspan="3" style="background: rgb(239, 239, 239);"> General</th></tr>
|
|
<tr style="background: rgb(239, 239, 239)">
|
|
<th width="400px"> Task </th>
|
|
<th width="150px"> Status </th>
|
|
<th> Owner </th>
|
|
</tr>
|
|
<tr>
|
|
<th align="left"> clang integration
|
|
</th><td class="done" align="center"> done
|
|
|
|
</td><td> Tobias
|
|
</td></tr>
|
|
<tr>
|
|
<th align="left"> Commit RegionPass patch upstream
|
|
</th><td class="done" align="center"> done
|
|
|
|
</td><td> Tobias
|
|
</td></tr>
|
|
<tr>
|
|
</tbody></table>
|
|
<h3 id="phase1">Phase 1 - Get Something Working (Finished October 2010)</h3>
|
|
<p>Create a minimal version of Polly that can transform an LLVM-IR program to
|
|
the polyhedral model and back to LLVM-IR. No transformations are performed.
|
|
</p>
|
|
<table class="wikitable" cellpadding="2">
|
|
|
|
<tbody>
|
|
<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Front End</th></tr>
|
|
<tr style="background: rgb(239, 239, 239)">
|
|
<th width="400px"> Task </th>
|
|
<th width="150px"> Status </th>
|
|
<th> Owner </th>
|
|
</tr>
|
|
|
|
<th align="left"> Region detection
|
|
</td><td class="done"> Done
|
|
</td><td>Ether
|
|
</td></tr>
|
|
<tr>
|
|
<th align="left"> Access Functions
|
|
</td><td class="done"> Done
|
|
</td><td>John, Ether
|
|
</td></tr>
|
|
<tr>
|
|
<th align="left"> Alias sets
|
|
</td><td class="done"> Done
|
|
</td><td>Ether
|
|
</td></tr>
|
|
<tr>
|
|
<th align="left"> Scalar evolution to affine expression
|
|
</td><td class="done"> Done
|
|
|
|
</td><td>
|
|
Ether
|
|
</td></tr>
|
|
<tr>
|
|
<th align="left"> SCoP extraction
|
|
</td><td class="done"> Done
|
|
</td><td>Tobias, Ether
|
|
|
|
</td></tr>
|
|
<tr>
|
|
<th align="left"> SCoPs to polyhedral model
|
|
</td><td class="done"> Done
|
|
</td><td>Tobias, Ether
|
|
</td></tr>
|
|
<tr><td colspan='4'> </td></tr>
|
|
<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Optimizer </th></tr>
|
|
<tr style="background: rgb(239, 239, 239)">
|
|
<th width="400px"> Task </th>
|
|
<th width="150px"> Status </th>
|
|
<th> Owner </th>
|
|
</tr>
|
|
<tr>
|
|
<th align="left"> Define polyhedral description
|
|
</td><td class="done"> Done
|
|
</td><td>Tobias
|
|
|
|
</td></tr>
|
|
<tr><td colspan='4'> </td></tr>
|
|
<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Back End</th></tr>
|
|
<tr style="background: rgb(239, 239, 239)">
|
|
<th width="400px"> Task </th>
|
|
<th width="150px"> Status </th>
|
|
<th> Owner </th>
|
|
</tr>
|
|
<tr>
|
|
<th align="left"> Create LLVM-IR using CLooG
|
|
</td><td class="done"> Done
|
|
</td><td> Tobias
|
|
|
|
</td></tr>
|
|
<tr><td colspan='4'> </td></tr>
|
|
<tr><th colspan="3" style="background: rgb(239, 239, 239);"> General</th></tr>
|
|
<tr style="background: rgb(239, 239, 239)">
|
|
<th width="400px"> Task </th>
|
|
<th width="150px"> Status </th>
|
|
<th> Owner </th>
|
|
</tr>
|
|
<tr>
|
|
<th align="left"> Setup git repositories
|
|
|
|
</td><td class="done"> Done
|
|
</td><td> Tobias
|
|
</td></tr>
|
|
<tr>
|
|
<th align="left"> Add CLooG/isl to build system
|
|
</td><td class="done"> Done
|
|
</td><td> Tobias
|
|
|
|
</td></tr>
|
|
|
|
</tbody></table>
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html>
|