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//@ run-pass
//@ ignore-emscripten FIXME(#45351)
#![feature(repr_simd, test)]
extern crate test;
#[repr(simd)]
pub struct Mu64(pub [u64; 4]);
fn main() {
// This ensures an unaligned pointer even in optimized builds, though LLVM
// gets enough type information to actually not mess things up in that case,
// but at the time of writing this, it's enough to trigger the bug in
// non-optimized builds
unsafe {
let memory = &mut [0u64; 8] as *mut _ as *mut u8;
let misaligned_ptr: &mut [u8; 32] = {
std::mem::transmute(memory.offset(1))
};
*misaligned_ptr = std::mem::transmute(Mu64([1, 1, 1, 1]));
test::black_box(memory);
}
}
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