mirror of
				https://github.com/rust-lang/rust.git
				synced 2025-10-31 21:16:44 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			21 lines
		
	
	
		
			465 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			21 lines
		
	
	
		
			465 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
| // compile-flags: -O
 | |
| // only-x86_64
 | |
| 
 | |
| #![crate_type = "rlib"]
 | |
| 
 | |
| use std::arch::asm;
 | |
| 
 | |
| // CHECK-LABEL: @x87_clobber
 | |
| // CHECK: ~{st},~{st(1)},~{st(2)},~{st(3)},~{st(4)},~{st(5)},~{st(6)},~{st(7)}
 | |
| #[no_mangle]
 | |
| pub unsafe fn x87_clobber() {
 | |
|     asm!("foo", out("st") _);
 | |
| }
 | |
| 
 | |
| // CHECK-LABEL: @mmx_clobber
 | |
| // CHECK: ~{st},~{st(1)},~{st(2)},~{st(3)},~{st(4)},~{st(5)},~{st(6)},~{st(7)}
 | |
| #[no_mangle]
 | |
| pub unsafe fn mmx_clobber() {
 | |
|     asm!("bar", out("mm0") _, out("mm1") _);
 | |
| }
 | 
