tiny.simd.lowerHalf

1pub fn lowerHalf(comptime D: type, value: anytype) D.Vector {2    if (D.lane_count == 1) {3        if (@TypeOf(value) != D.Vector) @compileError("scalar lowerHalf requires the same descriptor");4        return value;5    }6    if (@TypeOf(value) != D.twice().Vector) {7        @compileError("lowerHalf source must have twice the destination lanes");8    }9    var result: D.Vector = undefined;10    inline for (0..D.lane_count) |index| result[index] = value[index];11    return result;12}

1pub const lowerHalf = lanes.lowerHalf;