1 // only-x86_64
2 // revisions: base avx512
3 // [avx512]compile-flags: -C target-feature=+avx512f
4
5 #![crate_type = "rlib"]
6
7 use std::arch::asm;
8
9 // CHECK-LABEL: @amx_clobber
10 // base: call void asm sideeffect inteldialect "", "~{tmm0}"()
11 #[no_mangle]
amx_clobber()12 pub unsafe fn amx_clobber() {
13 asm!("", out("tmm0") _, options(nostack, nomem, preserves_flags));
14 }
15
16 // CHECK-LABEL: @avx512_clobber
17 // base: call void asm sideeffect inteldialect "", "~{xmm31}"()
18 // avx512: call float asm sideeffect inteldialect "", "=&{xmm31}"()
19 #[no_mangle]
avx512_clobber()20 pub unsafe fn avx512_clobber() {
21 asm!("", out("zmm31") _, options(nostack, nomem, preserves_flags));
22 }
23
24 // CHECK-LABEL: @eax_clobber
25 // CHECK: call i32 asm sideeffect inteldialect "", "=&{ax}"()
26 #[no_mangle]
eax_clobber()27 pub unsafe fn eax_clobber() {
28 asm!("", out("eax") _, options(nostack, nomem, preserves_flags));
29 }
30