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VEE
2006
ACM

HotpathVM: an effective JIT compiler for resource-constrained devices

9 years 5 months ago
HotpathVM: an effective JIT compiler for resource-constrained devices
We present a just-in-time compiler for a Java VM that is small enough to fit on resource-constrained devices, yet is surprisingly effective. Our system dynamically identifies traces of frequently executed bytecode instructions (which may span several basic blocks across several methods) and compiles them via Static Single Assignment (SSA) construction. Our novel use of SSA form in this context allows to hoist instructions across trace side-exits without necessitating expensive compensation code in off-trace paths. The overall memory consumption (code and data) of our system is only 150 kBytes, yet benchmarks show a speedup that in some cases rivals heavy-weight just-in-time compilers.
Andreas Gal, Christian W. Probst, Michael Franz
Added 14 Jun 2010
Updated 14 Jun 2010
Type Conference
Year 2006
Where VEE
Authors Andreas Gal, Christian W. Probst, Michael Franz
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