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Issue created by Yi Lin@u4776528Owner1 of 1 checklist item completed1/1 checklist item

Tune instruction selection for mu code from RPython

This issue tracks common instruction patterns that the RPython compiler generates. We will need to tune instruction selector to generate efficient code for these patterns.

  • Conditional branch

    cmpres = CMP_OP a b

    v1 = ZEXT <int1 int8> cmpres

    v2 = CMP_EQ v1 1

    BRANCH2 v2 ... ...