On Thu, 24 Feb 2022 19:04:37 GMT, Vamsi Parasa <d...@openjdk.java.net> wrote:
>> src/hotspot/share/opto/divnode.cpp line 881: >> >>> 879: return (phase->type( in(2) )->higher_equal(TypeLong::ONE)) ? in(1) : >>> this; >>> 880: } >>> 881: >>> //------------------------------Value------------------------------------------ >> >> Ideal transform to replace unsigned divide by cheaper logical right shift >> instruction if divisor is POW will be useful. > > Thanks for suggesting the enhancement. This enhancement will be implemented > as a part of https://bugs.openjdk.java.net/browse/JDK-8282365 You do need `Ideal()` methods at least to check for dead code. ------------- PR: https://git.openjdk.java.net/jdk/pull/7572
