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  1. Proceedings of the 2010 Workshop on Interaction between Compilers and Computer Architecture (INTERACT-14)
  2. Code size and performance optimization for mobile JavaScript just-in-time compiler
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Multicore-aware hybrid code positioning to reduce worst-case execution time
A compiler framework for general memory layout optimizations targeting structures
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Compiler-based data classification for hybrid caching
Code size and performance optimization for mobile JavaScript just-in-time compiler
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Code size and performance optimization for mobile JavaScript just-in-time compiler

Content Provider ACM Digital Library
Author Oh, Hyeong-Seok Lee, Seong-Won Jung, Won-Ki Moon, Soo-Mook Oh, Jin-Seok
Abstract Full web browsing with smart phones requires a high-performance JavaScript engine since JavaScript execution with a mobile CPU is slow. So, mobile JavaScript engines employ a just-in-time compiler (JITC), which translates JavaScript code to machine code at runtime. One issue is that since mobile phones suffer from tight memory constraints, the JITC needs to keep a low memory footprint by generating small-sized machine code. In fact, many mobile CPUs support half-sized encoding for small code size with small performance degradation, as in the ARM Thumb2. This paper describes our code generation and optimization for a mobile JavaScript JITC in the Webkit's SquirrelFish Extreme (SFX) for the ARM Thumb2. We try to generate as many 16-bit instructions as possible and reduce the data area, while strictly following the code generation guidelines of the SFX, which actually leaves little room for code optimization. Our experimental results show that we could reduce the code size by 29% with a performance degradation of 3.5%, compared to the ARM version of the SFX.
Starting Page 1
Ending Page 7
Page Count 7
File Format PDF
ISBN 9781605589213
DOI 10.1145/1739025.1739034
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2010-03-13
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Just-in-time compilation Code size reduction Thumb2 Javascript engine Squirrelfish extreme
Content Type Text
Resource Type Article
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