Function svcvtxnt_f32_f64_x
#[target_feature(enable = "sve", enable = "sve2")]
pub fn svcvtxnt_f32_f64_x(even: svfloat32_t, pg: svbool_t, op: svfloat64_t) -> svfloat32_t
Down convert, rounding to odd (top) Arm's documentation