On Tue, 7 Mar 2023 14:35:22 GMT, Adam Sotona <asot...@openjdk.org> wrote:
>> src/java.base/share/classes/jdk/internal/classfile/impl/EntryMap.java line >> 176: >> >>> 174: } >>> 175: >>> 176: public static long nextPowerOfTwo( long x ) { >> >> If you like you can change the implementation to be: >> >> x = -1 >>> Long.numberOfLeadingZeros(x - 1); >> return x + 1; >> >> See `ConcurrentHashMap`. > > `Long:numberOfLeadingZeros` implementation uses more method calls, > conditional statements and binary operations. I would prefer to stick with > the current implementation for its speed and simplicity. `numberOfLeadingZeros` is an intrinsic, so it will compile down to a machine instruction. Up to you. ------------- PR: https://git.openjdk.org/jdk/pull/10982