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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, intrinsics)]
#![allow(non_camel_case_types)]
#[repr(simd)]
#[derive(Copy, Clone, PartialEq, Debug)]
struct x4<T>(pub [T; 4]);
extern "rust-intrinsic" {
fn simd_gather<T, U, V>(x: T, y: U, z: V) -> T;
}
fn main() {
let x: [usize; 4] = [10, 11, 12, 13];
let default = x4([0_usize, 1, 2, 3]);
let all_set = u8::MAX as i8; // aka -1
let mask = x4([all_set, all_set, all_set, all_set]);
let expected = x4([10_usize, 11, 12, 13]);
unsafe {
let pointer = x.as_ptr();
let pointers = x4([
pointer.offset(0),
pointer.offset(1),
pointer.offset(2),
pointer.offset(3)
]);
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([0_isize, 1, 2, 3]);
let expected = x4([10_isize, 11, 12, 13]);
unsafe {
let pointer = x.as_ptr();
let pointers = x4([
pointer.offset(0),
pointer.offset(1),
pointer.offset(2),
pointer.offset(3)
]);
let result = simd_gather(default, pointers, mask);
assert_eq!(result, expected);
}
}
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