mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-03 20:23:59 +00:00
60 lines
1.3 KiB
Rust
60 lines
1.3 KiB
Rust
// assembly-output: emit-asm
|
|
// compile-flags: --target avr-unknown-gnu-atmega328
|
|
// needs-llvm-components: avr
|
|
|
|
#![feature(no_core, lang_items, rustc_attrs, asm_experimental_arch)]
|
|
#![crate_type = "rlib"]
|
|
#![no_core]
|
|
#![allow(non_camel_case_types)]
|
|
|
|
#[rustc_builtin_macro]
|
|
macro_rules! asm {
|
|
() => {};
|
|
}
|
|
#[rustc_builtin_macro]
|
|
macro_rules! concat {
|
|
() => {};
|
|
}
|
|
|
|
#[lang = "sized"]
|
|
trait Sized {}
|
|
#[lang = "copy"]
|
|
trait Copy {}
|
|
|
|
type ptr = *const u64;
|
|
|
|
impl Copy for i8 {}
|
|
impl Copy for i16 {}
|
|
impl Copy for i32 {}
|
|
impl Copy for i64 {}
|
|
impl Copy for ptr {}
|
|
|
|
macro_rules! check {
|
|
($func:ident $hi:literal $lo:literal $reg:tt) => {
|
|
#[no_mangle]
|
|
unsafe fn $func() -> i16 {
|
|
let y;
|
|
asm!(concat!("mov {0:", $hi, "}, {0:", $lo, "}"), out($reg) y);
|
|
y
|
|
}
|
|
};
|
|
}
|
|
|
|
// CHECK-LABEL: reg_pair_modifiers:
|
|
// CHECK: ;APP
|
|
// CHECK: mov r{{[1-9]?[13579]}}, r{{[1-9]?[24680]}}
|
|
// CHECK: ;NO_APP
|
|
check!(reg_pair_modifiers "h" "l" reg_pair);
|
|
|
|
// CHECK-LABEL: reg_iw_modifiers:
|
|
// CHECK: ;APP
|
|
// CHECK: mov r{{[1-9]?[13579]}}, r{{[1-9]?[24680]}}
|
|
// CHECK: ;NO_APP
|
|
check!(reg_iw_modifiers "h" "l" reg_iw);
|
|
|
|
// CHECK-LABEL: reg_ptr_modifiers:
|
|
// CHECK: ;APP
|
|
// CHECK: mov r{{[1-9]?[13579]}}, r{{[1-9]?[24680]}}
|
|
// CHECK: ;NO_APP
|
|
check!(reg_ptr_modifiers "h" "l" reg_ptr);
|