The efficient handling of guards in the design of RPython's tracing JIT

  title={The efficient handling of guards in the design of RPython's tracing JIT},
  author={David Schneider and Carl Friedrich Bolz},
  booktitle={VMIL '12},
Tracing just-in-time (JIT) compilers record linear control flow paths, inserting operations called guards at points of possible divergence. These operations occur frequently in generated traces and therefore it is important to design and implement them carefully to find the right trade-off between deoptimization, memory overhead, and (partly) execution speed. In this paper, we perform an empirical analysis of runtime properties of guards. This is used to guide the design of guards in the… CONTINUE READING
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