| //@compile-flags: -Copt-level=3 |
| |
| #![crate_type = "lib"] |
| #![feature(repr_simd, core_intrinsics)] |
| |
| #[allow(non_camel_case_types)] |
| #[derive(Clone, Copy)] |
| #[repr(simd)] |
| struct i32x4([i32; 4]); |
| |
| #[inline(always)] |
| fn to_array4(a: i32x4) -> [i32; 4] { |
| a.0 |
| } |
| |
| // CHECK-LABEL: simd_add_self_then_return_array( |
| // CHECK-SAME: ptr{{.+}}sret{{.+}}%[[RET:.+]], |
| // CHECK-SAME: ptr{{.+}}%a) |
| #[no_mangle] |
| pub fn simd_add_self_then_return_array(a: &i32x4) -> [i32; 4] { |
| // It would be nice to just ban `.0` into simd types, |
| // but until we do this has to keep working. |
| // See also <https://github.com/rust-lang/rust/issues/105439> |
| |
| // CHECK: %[[T1:.+]] = load <4 x i32>, ptr %a |
| // CHECK: %[[T2:.+]] = shl <4 x i32> %[[T1]], {{splat \(i32 1\)|<i32 1, i32 1, i32 1, i32 1>}} |
| // CHECK: store <4 x i32> %[[T2]], ptr %[[RET]] |
| let a = *a; |
| let b = unsafe { core::intrinsics::simd::simd_add(a, a) }; |
| to_array4(b) |
| } |
