37 lines
858 B
Rust
37 lines
858 B
Rust
|
//@ assembly-output: emit-asm
|
||
|
|
//@ compile-flags: --target msp430-none-elf
|
||
|
|
//@ needs-llvm-components: msp430
|
||
|
|
|
||
|
|
#![crate_type = "rlib"]
|
||
|
|
#![feature(no_core, rustc_attrs, lang_items, asm_experimental_arch)]
|
||
|
|
#![no_core]
|
||
|
|
|
||
|
|
#[lang = "sized"]
|
||
|
|
trait Sized {}
|
||
|
|
|
||
|
|
#[rustc_builtin_macro]
|
||
|
|
macro_rules! asm {
|
||
|
|
() => {};
|
||
|
|
}
|
||
|
|
|
||
|
|
// CHECK-LABEL: @sr_clobber
|
||
|
|
// CHECK: call void asm sideeffect "", "~{sr}"()
|
||
|
|
#[no_mangle]
|
||
|
|
pub unsafe fn sr_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 "", "={r11},={r12},={r13},={r14},={r15}"()
|
||
|
|
#[no_mangle]
|
||
|
|
pub unsafe fn clobber_abi() {
|
||
|
|
asm!("", clobber_abi("C"), options(nostack, nomem, preserves_flags));
|
||
|
|
}
|