tiny.simd.setBeforeFirst

1pub fn setBeforeFirst(comptime D: type, mask: D.Mask) D.Mask {2    const first = findFirstTrue(D, mask);3    const boundary: usize = if (first < 0) D.lane_count else @intCast(first);4    var result: D.Mask = @splat(false);5    inline for (0..D.lane_count) |index| result[index] = index < boundary;6    return result;7}

1pub const setBeforeFirst = compare.setBeforeFirst;