Efficacy and Performance Impact of Value Prediction

  title={Efficacy and Performance Impact of Value Prediction},
  author={Bohuslav Rychlik and John Faistl and Bryon Krug and John Paul Shen},
  booktitle={IEEE PACT},
Value prediction is a technique that bypasses inter-instruction data dependencies by speculating on the outcomes of producer instructions, thereby allowing dependent consumer instructions to execute in parallel. This work makes several contributions in value prediction research. A hybrid value predictor that achieves an overall prediction rate of up to 83% is presented. The design of a value-predicting eight-wide superscalar machine with its speculative execution core is described. This design… CONTINUE READING
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