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llvm-capstone/polly/www/todo.html
Tobias Grosser b24cf90645 Remove OpenScop 
We only supported a very old version of OpenScop that was entirely different
to what OpenScop is today. To not confuse people, we remove this old and
unusable support. If anyone is interested to add OpenScop support back in,
the relevant patches are available in version control.

llvm-svn: 206026
2014-04-11 09:47:45 +00:00

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<title>Polly - Todo</title>
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<h1> TODO </h1>
<h2> Overview</h2>
<ul>
<li><a href="#phase3">Phase 3 - Improve Robustness, Interoperability and
Optimizations (ongoing)</a></li>
<li><a href="#llvm">Polly as a LLVM Project (Finished February 2012)</a></li>
<li><a href="#phase2">Phase 2 - First Optimizations and Enhanced User Experience (Finished
February 2012)</a></li>
<li><a href="#phase1">Phase 1 - Get Something Working (Finished October 2010)</a>
</li>
</ul>
<h2> Individual Phases</h3>
<h3 id="phase3"> Phase 3 - Improve Robustness, Interoperability and
Optimizations (ongoing)</h3>
<table class="wikitable" cellpadding="2">
<p> </p>
<tbody>
<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Frontend </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"> Non-affine access functions
</th><td align="center" class='done'> Done, needs testing
</td><td>Marcello
</td>
</tr>
<tr>
<th align="left"> <a href="http://llvm.org/bugs/show_bug.cgi?id=12397">Model
integer wrapping</a>
</th><td align="center" class='open'> Open
</td><td>
</td></tr>
<tr>
<th align="left"> <a
href="http://llvm.org/bugs/show_bug.cgi?id=12403">Variable-size
multi-dimensional arrays</a>
</th><td align="center" class='open'> Open
</td><td>Sebastian
</td></tr>
<tr>
<th align="left"> <a
href="http://llvm.org/bugs/show_bug.cgi?id=12407">Derive information for
the SCoP context
</a>
</th>
<td align="center" class='nice'> Open
</td><td>
</td></tr>
<tr>
<th align="left"> <a href="http://llvm.org/bugs/show_bug.cgi?id=12402">Finer
grained statements</a>
</th><td align="center" class='nice'> Open
</td><td>
</td></tr>
<tr>
<th align="left"> Detect reductions
</th><td align="center" class='nice'>Open
</td><td>Johannes
</td></tr>
<tr>
<th align="left"> Assume static sized arrays are only accessed in-bounds
</th><td align="center" class='nice'>Open
</td><td>Zino
</td></tr>
<tr><td colspan='4'>&nbsp;</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"> <a href="http://llvm.org/bugs/show_bug.cgi?id=12405">Polyhedral
dead code elimination</a>
</th><td class="done">Done
</td><td>
</td></tr>
<th align="left"> <a
href="http://llvm.org/bugs/show_bug.cgi?id=10229">OpenSCoP Import/Export</a>
</th><td class="nice">Open
</td><td>
</td></tr>
<tr><td colspan='4'>&nbsp;</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"> Make OpenMP independent of Polly code generation
(requirement to enable scev codegen)
</th><td class="open"> Open
</td><td> Zino
</td></tr>
<tr>
<th align="left"> Support for scalars/PHIs directly in the code generation
(requirement to remove polly independent)
</th><td class="open"> Open
</td><td>Tobias
</td></tr>
<tr>
<th align="left"> <a href="http://llvm.org/bugs/show_bug.cgi?id=12398">Remove
the need for independent blocks</a>
</th><td class="open"> Open
</td><td>
</td></tr>
<tr>
<th align="left"> Run-time alias checks
</th><td class="open"> Open
</td><td>Sebastian
</td></tr>
<tr>
<th align="left"> <a href="http://llvm.org/bugs/show_bug.cgi?id=12404">Integrate
with the LLVM BBVectorizer</a>
</th><td class="nice">Open
</td><td>
</td></tr>
<tr>
<th align="left"> <a href="http://llvm.org/bugs/show_bug.cgi?id=10381">Derive
optimal types (instead of always using i64)</a>
</th><td class="niceinprogress"> in progress
</td><td>Tobias
</td></tr>
<tr>
<th align="left"> <a
href="http://polly.llvm.org/documentation/gpgpucodegen.html">GPGPU Code
Generation</a>
</th><td class="niceinprogress">in progress
</td><td>
Yabin
</td></tr>
<tr>
<th align="left"> <a
href="http://polly.llvm.org/documentation/memaccess.html">Allow optimizers to
change memory access functions</a>
</th><td class="nice"> Open
</td><td>
</td><td>
</td></tr>
<tr>
<th align="left"> <a href="http://llvm.org/bugs/show_bug.cgi?id=12406">Make code
generation independent of the clast</a>
</th><td class="done">Done
</td><td>
</td></tr>
<tr>
<tr><td colspan='4'>&nbsp;</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"> Teach bugpoint to extract regions
</th><td class="nice"> Open
</td><td>
</td></tr>
<tr>
<th align="left"> Add <a
href="http://www.cse.ohio-state.edu/~pouchet/software/polybench/">Polybench
3.2</a> to the LLVM test suite
</th><td class="done"> Done
</td><td>
</td></tr>
<tr>
<th align="left"> Build against an installed LLVM
</th><td class="done"> Done<br />
</td><td>
</td></tr>
<tr>
<th align="left"> Setup buildbot regression testers using LNT
</th><td class="done"> Done
</td><td> Tobias
</td></tr>
</tbody></table>
<h3 id="llvm"> Polly as a LLVM Project (Finished February 2012)</h3>
<table class="wikitable" cellpadding="2">
<tbody>
<tr style="background: rgb(239, 239, 239);">
<th>Task
</th><th> Status
</th><th>Owner
</th></tr>
<tr>
<th align="left"> Move to LLVM SVN
</th><td class="done" align="center">
<a
href="http://llvm.org/svn/llvm-project/polly"
>http://llvm.org/svn/llvm-project/polly</a>
</td><td> Tobias
</td></tr>
<tr>
<th align="left"> Git mirror
</th><td class="done" align="center">
git://llvm.org/git/polly.git
</td><td> Tobias
</td></tr>
<tr>
<th align="left"> Commit mails
</th><td class="done" align="center">
llvm-commits@cs.uiuc.edu
</td><td> Tobias
</td></tr>
<tr>
<th align="left"> LLVM Bugzilla category
</th><td class="done" align="center">
<a href="http://llvm.org/bugs/enter_bug.cgi?product=Projects">LLVM Bugzilla</a>
<br />
(Product is 'Projects', Component is 'Polly')
</td><td> Tobias
<tr>
<th align="left"> Website
</th><td class="done" align="center">
<a href="http://polly.llvm.org">http://polly.llvm.org</a>
</td><td> Tobias
</td></tr>
<tr>
<th align="left">Buildbot that runs 'make polly-test'
</th><td class="done" align="center">
<a href="http://lab.llvm.org:8011/console">Buildbot</a>
</td>
<td> Tobias, Andreas
</td></tr>
</th><td>
</td></tr>
</tbody></table>
<h3 id="phase2"> Phase 2 - First Optimizations and Enhanced User Experience (Finished
February 2012)</h3>
<p>
First optimizations to show the usefullness of Polly and enhance the user
experience. We also try to increase the amount of code we can optimize.
</p>
<table class="wikitable" cellpadding="2">
<tbody>
<tr><th colspan="3" style="background: rgb(239, 239, 239);"> Frontend </th></tr>
<tr style="background: rgb(239, 239, 239)">
<th width="400px"> Task </th>
<th width="150px"> Status </th>
<th> Owner </th>
</tr>
<tr>
<tr>
<th align="left"> Allow parameters in access functions
</th><td align="center" class='done'> Done
</td><td> Tobias
</td></tr>
<tr>
<th align="left"> Improved Scalar Evolution parsing
</th><td align="center" class='done'> Done
</td><td> Tobias
</td></tr>
<tr>
<th align="left"> (Graphical) user feedback on Scop Detection
</th><td align="center" class='done'> Done
</td><td> Tobias
</td></tr>
<tr><td colspan='4'>&nbsp;</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"> Dependency Analysis
</th><td class="done" align="center"> Done
</td><td> Tobias
</td></tr>
<tr>
<tr>
<th align="left"> Optimizer - Connect Pluto (through PoCC)
</th><td class="done" align="center"> Done
</td><td> Tobias
</td></tr>
<tr>
<tr>
<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'>&nbsp;</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'>&nbsp;</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'>&nbsp;</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'>&nbsp;</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'>&nbsp;</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>
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