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get_started.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<title>Polly - Getting Started</title>
<link type="text/css" rel="stylesheet" href="menu.css" />
<link type="text/css" rel="stylesheet" href="content.css" />
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<body>
<div id="box">
<!--#include virtual="menu.html.incl"-->
<div id="content">
<h1>Building and Installing Polly</h1>
You can build Polly with <a href="https://cmake.org/">cmake</a> and your preferred geneator (e.g. Ninja, make, Visual Studio, etc.).
<h3 id="source">Get the code</h3>
<pre>
git clone https://github.com/llvm/llvm-project.git
</pre>
You can also get a shallow clone by running:
<pre>
git clone --depth 1 https://github.com/llvm/llvm-project.git
</pre>
<h3 id="build">Build Polly</h3>
<pre>
mkdir build && cd build
cmake '-DLLVM_ENABLE_PROJECTS=clang;polly' ../llvm
cmake --build .
</pre>
You can also pass arguments to cmake to specify a particular generator (e.g. <code>-G Ninja</code>) or the build type (<code>-DCMAKE_BUILD_TYPE=Release</code>).
If you just want to play around with Polly, it is recommended to do a Release+Assert build by passing
<code>-DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_ASSERTIONS=ON</code>.
<h3>Test Polly</h3>
To test Polly, you can run
<pre>cmake --build . --target check-polly</pre>
<h3>Using Polly</h3>
Suppose that you want to compile a program hello.c using Polly.
To compile it with Polly (in the build folder), you can run:
<pre>
bin/clang -O3 -mllvm -polly hello.c
</pre>
<h3> Troubleshooting</h3>
<p>
If you run out of memory when building with Ninja, try lowering the concurrency of Ninja (e.g. <code> ninja -j 2 </code>).
More tips and tricks to building and using LLVM can be found <a href="https://llvm.org/docs/GettingStarted.html#common-problems">here</a>.
</p>
<p>
For more information on getting started with Polly and LLVM in general, see LLVM's <a href = "https://llvm.org/docs/GettingStarted.html">getting started docs</a>.
</p>
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