rust/tests/ui/simd/masked-load-store.rs

//@ ignore-backends: gcc
//@ run-pass
#![feature(repr_simd, core_intrinsics)]

#[path = "../../auxiliary/minisimd.rs"]
mod minisimd;
use minisimd::*;

use std::intrinsics::simd::{simd_masked_load, simd_masked_store};

fn main() {
    unsafe {
        let a = Simd::<u8, 4>([0, 1, 2, 3]);
        let b_src = [4u8, 5, 6, 7];
        let b_default = Simd::<u8, 4>([9; 4]);
        let b: Simd<u8, 4> =
            simd_masked_load(Simd::<i8, 4>([-1, 0, -1, -1]), b_src.as_ptr(), b_default);

        assert_eq!(b.as_array(), &[4, 9, 6, 7]);

        let mut output = [u8::MAX; 5];

        simd_masked_store(Simd::<i8, 4>([-1, -1, -1, 0]), output.as_mut_ptr(), a);
        assert_eq!(&output, &[0, 1, 2, u8::MAX, u8::MAX]);
        simd_masked_store(Simd::<i8, 4>([0, -1, -1, 0]), output[1..].as_mut_ptr(), b);
        assert_eq!(&output, &[0, 1, 9, 6, u8::MAX]);
    }
}