"andr $tmp, T8B, $src1, $src2\t# src2 is maskAllTrue\n\t"
            "notr $tmp, T8B, $tmp\n\t"
            "addv $tmp, T8B, $tmp\n\t"
            "umov $dst, $tmp, B, 0\n\t"
            "cmp $dst, 0\n\t"
            "cset $dst"

Could be optimized to:

            "uminv $tmp, T8B, $src1\n\t"
            "umov $dst, $tmp, B, 0\n\t"
            "cmp $dst, 0xff\n\t"
            "cset $dst"

jmh:
https://github.com/openjdk/panama-vector/blob/vectorIntrinsics/test/jdk/jdk/incubator/vector/benchmark/src/main/java/benchmark/bigdata/BooleanArrayCheck.java