//@ needs-asm-support | |
//@ ignore-nvptx64 | |
//@ ignore-spirv | |
use std::arch::asm; | |
fn main() { | |
unsafe { | |
// Can't output to borrowed values. | |
let mut a = 0isize; | |
let p = &a; | |
asm!("{}", out(reg) a); | |
//~^ ERROR cannot assign to `a` because it is borrowed | |
println!("{}", p); | |
// Can't read from mutable borrowed values. | |
let mut a = 0isize; | |
let p = &mut a; | |
asm!("{}", in(reg) a); | |
//~^ ERROR cannot use `a` because it was mutably borrowed | |
println!("{}", p); | |
} | |
} |