mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-31 13:04:42 +00:00
32 lines
772 B
Rust
32 lines
772 B
Rust
//@ add-core-stubs
|
|
//@ compile-flags: --target bpfel-unknown-none
|
|
//@ needs-llvm-components: bpf
|
|
|
|
#![crate_type = "rlib"]
|
|
#![feature(no_core, asm_experimental_arch)]
|
|
#![no_core]
|
|
|
|
extern crate minicore;
|
|
use minicore::*;
|
|
|
|
// CHECK-LABEL: @flags_clobber
|
|
// CHECK: call void asm sideeffect "", ""()
|
|
#[no_mangle]
|
|
pub unsafe fn flags_clobber() {
|
|
asm!("", options(nostack, nomem));
|
|
}
|
|
|
|
// CHECK-LABEL: @no_clobber
|
|
// CHECK: call void asm sideeffect "", ""()
|
|
#[no_mangle]
|
|
pub unsafe fn no_clobber() {
|
|
asm!("", options(nostack, nomem, preserves_flags));
|
|
}
|
|
|
|
// CHECK-LABEL: @clobber_abi
|
|
// CHECK: asm sideeffect "", "={r0},={r1},={r2},={r3},={r4},={r5}"()
|
|
#[no_mangle]
|
|
pub unsafe fn clobber_abi() {
|
|
asm!("", clobber_abi("C"), options(nostack, nomem, preserves_flags));
|
|
}
|