Design a High-Performance Just-In-Time Compiler for a J2ME JVM on XScaleTM1

摘要：

The Just-In-Time compilers have been widely adopted in J2SE and J2ME virtual machines.However,it is a big challenge for a JIT compiler to generate high-quality native code under the tight time and memory constraints on embedded systems. This paper presents the framework and key optimizations of a JIT compiler we designed for Intels J2ME virtual machine,namely XORP,for XScaleTM architecture. We describe the bytecode-based optimizations,e.g.bytecode inlining,Array Bounds Check Elimination,Null Pointer Check Elimination,etc.,and some key optimizations aimed at XScaleTM architecture,e.g.instruction scheduling,etc.,in the XORP JIT. XORP is more than 15 times faster than the reference implementation of J2ME CLDC,KVM,for EEMBC,with a 350KB executable file,including interpreter,JIT compiler,GC and all other JVM components.Comparing with other high-performance J2ME JVMs,like JeodeK and CLDC-HI,XORP is also at least 69％ faster than them.

作者: Xiaohua Shi Maozhong Jin Bu Qi Cheng Peng Guo

作者单位: School of Computer Science Beihang University Microprocessor Technology Labs

会议类型: 国际会议

会议名称: The 2008 International Conference on Embedded Software and Systems Symposia(ICESS 2008)(2008国际嵌入式系统及嵌入式软件会议)

会议地点: 成都

会议语种:英文

页码: 439-446

在线出版日期: 2008-01-01（万方平台首次上网日期，不代表论文的发表时间）