devmtg/2015-02-07/index.html

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<div class="www_sectiontitle">LLVM Workshop at CGO</div>
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        <li><a href="#schedule">Schedule</a></li>
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  <li><b>What</b>: LLVM at CGO.</li>
  <li><b>When</b>: February 7, 2015</li>
  <li><b>Where</b>: San Francisco, CA</li>
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A LLVM Workshop will be held at CGO 2015. If you are interested in attending the workshop, please register at the <a href="http://cgo.org/cgo2015/">CGO website</a>.
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Topic Overview
<ul>
<li>High-level overview of LLVM & Clang</li>
<ul>
<li>Will include how to get started coding on LLVM & Clang</li>
<li>Overview of core design elements, data structures, APIs, and patterns used in the codebase</li>
<li>High-level testing strategy for LLVM & Clang using tools like Clang’s ‘-verify’, opt, llc, FileCheck, and GoogleTest</li>
<li>Process of submitting a patch, code review, and community interactions</li>
</ul>
<li>How to add an optimization pass to LLVM</li>
<ul>
<li>Tutorial on the LLVM IR both in the abstract and at the level of internal APIs</li>
<li>Basic APIs and data structures needed to implement, test, and wire a new pass into the compiler.</li>
<li>Overview of the relationship between transform and analysis passes.</li>
<li>Overview of the different kinds of transformation passes, how they interact, and what they can and can’t do</li>
<li>Actually add a transformation pass and an analysis pass to the compiler that depend on each other and exercise this machinery.</li>
<li>Includes authoring relevant tests for each component</li>
</ul>
<li>High-level overview of the architecture of an LLVM backend, with an emphasis on modifying or enhancing existing backends rather than adding a new one</li>
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<li>Detailed review of where things are: from SelectionDAG to FastISel to the register allocator</li>
<li>Detailed review of exactly how a backend’s tablegen works, and how to make changes there and debug things</li>
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<div class="www_sectiontitle" id="schedule">Schedule</div>
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<tr><th>Time</th><th>Topic</th></tr>
<tr><td>8:30</td><td>Introduction to the LLVM Project</td></tr> 
<tr><td>9:00</td><td>Getting started hacking on LLVM and Clang</td></tr>
<tr><td>10:00</td><td>BREAK</td></tr>
<tr><td>10:30</td><td>The middle end optimizer</td></tr>
<tr><td>12:00</td><td>LUNCH</td></tr>
<tr><td>2:00</td><td>Diagnosing and fixing bugs in the middle end optimizer</td></tr>
<tr><td>2:45</td><td>Adding optimization passes to the middle end</td></tr>
<tr><td>3:30</td><td>BREAK</td></tr>
<tr><td>4:00</td><td>Overview of the LLVM Code Generator
<tr><td>4:30</td><td>Adding custom legalization, target specific pseudo instructions, and instruction pattern</td></tr>
<tr><td>5:00</td><td>Extended Q&A</td></tr>
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