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Russ Cox authored
* Eliminate bounds check on known small shifts. * Rewrite x<<s | x>>(32-s) as a rotate (constant s). * More aggressive (but still minimal) range analysis. R=ken, dave, iant CC=golang-dev https://golang.org/cl/6209077
c6ce4482
* Eliminate bounds check on known small shifts. * Rewrite x<<s | x>>(32-s) as a rotate (constant s). * More aggressive (but still minimal) range analysis. R=ken, dave, iant CC=golang-dev https://golang.org/cl/6209077