src/test/ui/simd/libm_std_can_float.rs

   1 // run-pass
   2
   3 // This is the converse of the other libm test.
   4 #![feature(portable_simd)]
   5 use std::simd::f32x4;
   6 use std::simd::{SimdFloat, StdFloat};
   7
   8 // For SIMD float ops, the LLIR version which is used to implement the portable
   9 // forms of them may become calls to math.h AKA libm. So, we can't guarantee
  10 // we can compile them for #![no_std] crates.
  11 //
  12 // However, we can expose some of these ops via an extension trait.
  13 fn main() {
  14     let x = f32x4::from_array([0.1, 0.5, 0.6, -1.5]);
  15     let x2 = x + x;
  16     let _xc = x.ceil();
  17     let _xf = x.floor();
  18     let _xr = x.round();
  19     let _xt = x.trunc();
  20     let _xfma = x.mul_add(x, x);
  21     let _xsqrt = x.sqrt();
  22     let _ = x2.abs() * x2;
  23 }