File: x86-clobbers.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 934,128 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (20 lines) | stat: -rw-r--r-- 478 bytes parent folder | download | duplicates (11) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
//@ compile-flags: -Copt-level=3
//@ 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") _);
}