On Thu, 19 May 2022 08:53:31 GMT, Ningsheng Jian <nj...@openjdk.org> wrote:
>>> LUT should be generated only if UsePopCountInsturction is false >> >> Should there be `!UsePopCountInsturction` check then? >> >>> restrict the scope of flag to only scalar popcount operation >> >> Interesting. But AArch64 code does cover vector cases which just adds >> confusion. > >> Interesting. But AArch64 code does cover vector cases which just adds >> confusion. > > `UsePopCountInsturction` is always true in AArch64. @XiaohongGong removed the > `predicate` in aarch64 rules, and I think we can even remove the option check > in match_rule_supported(). Ok , I will remove the check for it. Thanks! ------------- PR: https://git.openjdk.java.net/jdk/pull/8425
