tests/codegen/simd-intrinsic/simd-intrinsic-float-minmax.rs

   1 // compile-flags: -C no-prepopulate-passes
   2
   3 #![crate_type = "lib"]
   4
   5 #![feature(repr_simd, platform_intrinsics)]
   6 #![allow(non_camel_case_types)]
   7
   8 #[repr(simd)]
   9 #[derive(Copy, Clone, PartialEq, Debug)]
  10 pub struct f32x4(pub f32, pub f32, pub f32, pub f32);
  11
  12 extern "platform-intrinsic" {
  13     fn simd_fmin<T>(x: T, y: T) -> T;
  14     fn simd_fmax<T>(x: T, y: T) -> T;
  15 }
  16
  17 // CHECK-LABEL: @fmin
  18 #[no_mangle]
  19 pub unsafe fn fmin(a: f32x4, b: f32x4) -> f32x4 {
  20     // CHECK: call <4 x float> @llvm.minnum.v4f32
  21     simd_fmin(a, b)
  22 }
  23
  24 // CHECK-LABEL: @fmax
  25 #[no_mangle]
  26 pub unsafe fn fmax(a: f32x4, b: f32x4) -> f32x4 {
  27     // CHECK: call <4 x float> @llvm.maxnum.v4f32
  28     simd_fmax(a, b)
  29 }