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//@ run-pass
#![feature(repr_simd, intrinsics)]
extern "rust-intrinsic" {
fn simd_cast_ptr<T, U>(x: T) -> U;
fn simd_expose_provenance<T, U>(x: T) -> U;
fn simd_with_exposed_provenance<T, U>(x: T) -> U;
}
#[derive(Copy, Clone)]
#[repr(simd)]
struct V<T>([T; 2]);
fn main() {
unsafe {
let mut foo = 4i8;
let ptr = &mut foo as *mut i8;
let ptrs = V::<*mut i8>([ptr, core::ptr::null_mut()]);
// change constness and type
let const_ptrs: V<*const u8> = simd_cast_ptr(ptrs);
let exposed_addr: V<usize> = simd_expose_provenance(const_ptrs);
let with_exposed_provenance: V<*mut i8> = simd_with_exposed_provenance(exposed_addr);
assert!(const_ptrs.0 == [ptr as *const u8, core::ptr::null()]);
assert!(exposed_addr.0 == [ptr as usize, 0]);
assert!(with_exposed_provenance.0 == ptrs.0);
}
}
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