Mercurial > hg > Members > kaito > slides

annotate 2013/old/2013_11_19.html @ 0:845ff8ff4fc9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
1st
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 14 Jan 2014 01:31:42 +0900
parents
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
1 <!DOCTYPE html>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
2 <html>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
3 <head>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
4 <meta charset='utf-8'>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
5
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
6 <script
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
7 src='./trunk/slides.js'></script>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
8 </head>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
9
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
10 <body style='display: none'>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
11 <section class='slides layout-regular template-default'>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
12
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
13 <article>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
14 <h1>CbCコンパイラのLLVM3.4上での実装</h1>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
15 <p><br>Kaito Tokumori<br>November 19, 2013</p>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
16 </article>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
17 <article>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
18 <h3>研究目的</h3>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
19 <p>　当研究室ではプログラムをコードセグメント、データセグメントという単位を用いて書くという手法を提案している。その手法を用いてプログラミングを行う言語として"CbC"の開発を行っており、これはCの下位の言語である。CbCにおいてコードセグメント間の移動はgoto文を用いた軽量継続によって行われ、これはTail Call Eliminationという最適化の強制によって実現される。</p>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
20 <p>本研究過去に開発されたmicro-c,GCC版のコンパイラに続くLLVM/Clang上でのCbCコンパイラの開発を行う。</p>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
21 </article>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
22
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
23 <article>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
24 <h3>今回したこと</h3>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
25 <ul>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
26 <li>不具合の修正<ul>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
27 <li>stdio.hをincludeせずにputs等の関数を使用した時にclangが止まる問題</li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
28 <li>__codeを含まないコードの時にTCEが無効になる問題</li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
29 <li>alloca instructionが正しく除去されない問題</li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
30 <li>ポインタ経由で関数を呼び出した時にTCEが無効になる問題</li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
31 </ul></li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
32
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
33 </ul>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
34 </article>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
35
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
36 <article>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
37 <h3>不具合の修正(1)</h3>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
38 <ul>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
39 <li>stdio.hをincludeせずにputs等の関数を使用した時にclangが止まる問題<ul><ul>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
40 <li>stdio.hをincludしないとTailCallElimパスに入る時点ではFunctionの実体が無く(null)、そこにアクセスしようとして止まっていた。</li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
41 <li>Functionがnullかどうか調べてから処理を行うように変更。</li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
42 </ul></ul></li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
43
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
44 <li>__codeを含まないコードの時にTCEが無効になる問題<ul><ul>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
45 <li>if文の条件ミス。</li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
46 </ul></ul></li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
47 </ul>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
48 </article>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
49
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
50 <article>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
51 <h3>不具合の修正(2)</h3>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
52 <ul>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
53 <li>alloca instructionが正しく除去されない問題<ul><ul>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
54 <li>条件の変更によって解決。</li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
55 <li>code segmentを呼び出しているかどうか → 対象関数がcode segmetかどうか</li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
56 </ul></ul></li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
57
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
58 <li>ポインタ経由で関数を呼び出した時にTCEが無効になる問題<ul><ul>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
59 <li>LowerCallingInfo関数で、TCE可能かどうか調べる処理群の直前にフラグを立てる処理を挿入。</li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
60 </ul></ul></li>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
61 </ul>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
62 </article>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
63
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
64 <article>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
65 <h3>次回課題</h3>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
66 </article>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
67
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
68 </section>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
69 </body>
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
70 </html>