diff options
Diffstat (limited to '')
| -rw-r--r-- | tests/ui/simd/shuffle.rs | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/tests/ui/simd/shuffle.rs b/tests/ui/simd/shuffle.rs index 3592adfdc..461243d48 100644 --- a/tests/ui/simd/shuffle.rs +++ b/tests/ui/simd/shuffle.rs @@ -1,14 +1,24 @@ -//run-pass +// run-pass +// revisions: opt noopt +//[noopt] compile-flags: -Copt-level=0 +//[opt] compile-flags: -O #![feature(repr_simd, platform_intrinsics)] +#![allow(incomplete_features)] +#![feature(adt_const_params)] extern "platform-intrinsic" { fn simd_shuffle<T, I, U>(a: T, b: T, i: I) -> U; + fn simd_shuffle16<T, U>(x: T, y: T, idx: [u32; 16]) -> U; } #[derive(Copy, Clone)] #[repr(simd)] struct Simd<T, const N: usize>([T; N]); +pub unsafe fn __shuffle_vector16<const IDX: [u32; 16], T, U>(x: T, y: T) -> U { + simd_shuffle16(x, y, IDX) +} + fn main() { const I1: [u32; 4] = [0, 2, 4, 6]; const I2: [u32; 2] = [1, 5]; @@ -21,4 +31,16 @@ fn main() { let y: Simd<u8, 2> = simd_shuffle(a, b, I2); assert_eq!(y.0, [1, 5]); } + // Test that an indirection (via an unnamed constant) + // through a const generic parameter also works. + // See https://github.com/rust-lang/rust/issues/113500 for details. + let a = Simd::<u8, 16>([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]); + let b = Simd::<u8, 16>([16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31]); + unsafe { + __shuffle_vector16::< + { [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16] }, + Simd<u8, 16>, + Simd<u8, 16>, + >(a, b); + } } |