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//@ run-pass
// Test that simd gather instructions on slice of usize don't cause crash
// See issue #89183 - https://github.com/rust-lang/rust/issues/89193
#![feature(repr_simd, core_intrinsics)]
#![allow(non_camel_case_types)]
#[path = "../../auxiliary/minisimd.rs"]
mod minisimd;
use minisimd::*;
use std::intrinsics::simd::simd_gather;
type x4<T> = Simd<T, 4>;
fn main() {
let x: [usize; 4] = [10, 11, 12, 13];
let default = x4::from_array([0_usize, 1, 2, 3]);
let all_set = u8::MAX as i8; // aka -1
let mask = x4::from_array([all_set, all_set, all_set, all_set]);
let expected = x4::from_array([10_usize, 11, 12, 13]);
unsafe {
let pointer = x.as_ptr();
let pointers =
x4::from_array(std::array::from_fn(|i| pointer.add(i)));
let result = simd_gather(default, pointers, mask);
assert_eq!(result, expected);
}
// and again for isize
let x: [isize; 4] = [10, 11, 12, 13];
let default = x4::from_array([0_isize, 1, 2, 3]);
let expected = x4::from_array([10_isize, 11, 12, 13]);
unsafe {
let pointer = x.as_ptr();
let pointers =
x4::from_array(std::array::from_fn(|i| pointer.add(i)));
let result = simd_gather(default, pointers, mask);
assert_eq!(result, expected);
}
}
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