// run-pass #![feature(llvm_asm)] #[cfg(any(target_arch = "x86", target_arch = "x86_64"))] pub fn main() { let x: isize; unsafe { // Treat the output as initialization. llvm_asm!("mov $1, $0" : "=r"(x) : "r"(5_usize)); } assert_eq!(x, 5); let mut x = x + 1; assert_eq!(x, 6); unsafe { // Assignment to mutable. llvm_asm!("mov $1, $0" : "=r"(x) : "r"(x + 7)); } assert_eq!(x, 13); } #[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))] pub fn main() {}