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