50 lines
1.8 KiB
Markdown
50 lines
1.8 KiB
Markdown
---
|
|
title: "Datengarten 31"
|
|
subtitle: "Dem Compiler beim Optimieren zuschauen"
|
|
date: 2009-06-25T00:00:00+02:00
|
|
event_date: 2009-06-25T20:00:00+02:00
|
|
location: CCCB
|
|
speaker: hannes
|
|
language: Deutsch
|
|
streaming: false
|
|
---
|
|
{{< datengarten-infobox >}}
|
|
|
|
**A tool for debugging compiler optimizations and type inference** (in
|
|
deutscher Sprache)
|
|
|
|
Abstract
|
|
--------
|
|
|
|
The focus of this talk will be type theory (type system and type
|
|
inference), applied to a dynamic language (Slides of a previous talk are
|
|
\[6\]). A side-effect during working on this topic was the development
|
|
of a visualization tool:
|
|
|
|
This tool is a Java application which visualizes the control and data
|
|
flow graph of the intermediate representation of Open Dylan \[1\]
|
|
(former DylanWorks, Harlequin Dylan, Functional Developer) and animates
|
|
optimizations. The Open Dylan compiler was extended with hooks to send
|
|
control flow and data flow changes via TCP/IP to the Java application.
|
|
The justification why the visualization is in Java is because I couldn't
|
|
find a decent graph layouting and animation library with an API. The
|
|
graph library used is yFiles \[2\]. The Java code \[3\] consists of 2000
|
|
lines of code, the compiler hooks were about 250 lines of code.
|
|
Interactive application can be viewed at \[5\]. The communication
|
|
protocol in use are S-expressions, in the same marshalling format as
|
|
swank (the slime backend protocol).
|
|
|
|
An example for this work is a visualized map(method(x) x end, \#(1)),
|
|
available at \[4\] (data flow nodes and edges are pink).
|
|
|
|
Links
|
|
-----
|
|
|
|
1. <http://www.opendylan.org/>
|
|
2. <http://www.yworks.com/en/products_yfiles_about.html>
|
|
3. <http://www.opendylan.org/cgi-bin/viewvc.cgi/branches/opendylan-visualization/FlowGraphVisualization/src/>
|
|
4. <http://www.opendylan.org/~hannes/yworks/test4.avi>
|
|
5. <http://visualization.dylan-user.org/>
|
|
6. <http://www.opendylan.org/~hannes/ph-neutral.pdf>
|
|
|