File: x86-clobbers.rs

package info (click to toggle)
rustc 1.89.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 906,624 kB
  • sloc: xml: 158,148; python: 34,888; javascript: 19,595; sh: 19,221; ansic: 13,046; cpp: 7,144; asm: 4,376; makefile: 692; lisp: 174; sql: 15
file content (20 lines) | stat: -rw-r--r-- 478 bytes parent folder | download | duplicates (14) 
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") _);
}