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Aart Bik 7e99f49629 [vm/compiler] general rbit utilities
Rationale:
Useful to implement the simulator, but also useful
in the future when compiler wants to constant fold
operations related to bit reversal.

https://github.com/dart-lang/sdk/issues/38346

Change-Id: I2f09ba6b1897202b5c07a2cff771afd7bbc99495
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/119703
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Aart Bik <ajcbik@google.com>
2019-10-02 20:37:10 +00:00
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