tests/ui/target-feature/aarch64-neon-works.rs

   1 // only-aarch64
   2 // run-pass
   3 #![allow(dead_code)]
   4 use std::arch::*;
   5 use std::arch::aarch64::*;
   6
   7 // Smoke test to verify aarch64 code that enables NEON compiles.
   8 fn main() {
   9     let _zero = if is_aarch64_feature_detected!("neon") {
  10         unsafe {
  11             let zeros = zero_vector();
  12             vgetq_lane_u8::<1>(zeros)
  13         }
  14     } else {
  15         0
  16     };
  17 }
  18
  19
  20 #[target_feature(enable = "neon")]
  21 unsafe fn zero_vector() -> uint8x16_t {
  22     vmovq_n_u8(0)
  23 }