1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
// assembly-output: emit-asm
// compile-flags: --target msp430-none-elf
// needs-llvm-components: msp430
#![feature(no_core, lang_items, rustc_attrs, asm_sym, asm_experimental_arch, asm_const)]
#![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 i16;
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 $ty:ident $class:ident) => {
#[no_mangle]
pub unsafe fn $func(x: $ty) -> $ty {
let y;
asm!("mov {}, {}", lateout($class) y, in($class) x);
y
}
};
}
macro_rules! checkb {
($func:ident $ty:ident $class:ident) => {
#[no_mangle]
pub unsafe fn $func(x: $ty) -> $ty {
let y;
asm!("mov.b {}, {}", lateout($class) y, in($class) x);
y
}
};
}
macro_rules! check_reg {
($func:ident $ty:ident $reg:tt) => {
#[no_mangle]
pub unsafe fn $func(x: $ty) -> $ty {
let y;
asm!(concat!("mov ", $reg, ", ", $reg), lateout($reg) y, in($reg) x);
y
}
};
}
macro_rules! check_regb {
($func:ident $ty:ident $reg:tt) => {
#[no_mangle]
pub unsafe fn $func(x: $ty) -> $ty {
let y;
asm!(concat!("mov.b ", $reg, ", ", $reg), lateout($reg) y, in($reg) x);
y
}
};
}
extern "C" {
fn extern_func();
static extern_static: i8;
}
// CHECK-LABEL: sym_fn
// CHECK: ;APP
// CHECK: call extern_func
// CHECK: ;NO_APP
#[no_mangle]
pub unsafe fn sym_fn() {
asm!("call {}", sym extern_func);
}
// CHECK-LABEL: sym_static
// CHECK: ;APP
// CHECK: mov.b extern_static, r{{[0-9]+}}
// CHECK: ;NO_APP
#[no_mangle]
pub unsafe fn sym_static() -> i8 {
let y;
asm!("mov.b {1}, {0}", lateout(reg) y, sym extern_static);
y
}
// CHECK-LABEL: add_const:
// CHECK: ;APP
// CHECK: add.b #5, r{{[0-9]+}}
// CHECK: ;NO_APP
#[no_mangle]
pub unsafe fn add_const() -> i8 {
let y;
asm!("add.b #{number}, {}", out(reg) y, number = const 5);
y
}
// CHECK-LABEL: mov_postincrement:
// CHECK: ;APP
// CHECK: mov @r5+, r{{[0-9]+}}
// CHECK: ;NO_APP
#[no_mangle]
pub unsafe fn mov_postincrement(mut x: *const i16) -> (i16, *const i16) {
let y;
asm!("mov @r5+, {0}", out(reg) y, inlateout("r5") x);
(y, x)
}
// CHECK-LABEL: reg_i8:
// CHECK: ;APP
// CHECK: mov r{{[0-9]+}}, r{{[0-9]+}}
// CHECK: ;NO_APP
check!(reg_i8 i8 reg);
// CHECK-LABEL: reg_i16:
// CHECK: ;APP
// CHECK: mov r{{[0-9]+}}, r{{[0-9]+}}
// CHECK: ;NO_APP
check!(reg_i16 i16 reg);
// CHECK-LABEL: reg_i8b:
// CHECK: ;APP
// CHECK: mov.b r{{[0-9]+}}, r{{[0-9]+}}
// CHECK: ;NO_APP
checkb!(reg_i8b i8 reg);
// CHECK-LABEL: r5_i8:
// CHECK: ;APP
// CHECK: mov r5, r5
// CHECK: ;NO_APP
check_reg!(r5_i8 i8 "r5");
// CHECK-LABEL: r5_i16:
// CHECK: ;APP
// CHECK: mov r5, r5
// CHECK: ;NO_APP
check_reg!(r5_i16 i16 "r5");
// CHECK-LABEL: r5_i8b:
// CHECK: ;APP
// CHECK: mov.b r5, r5
// CHECK: ;NO_APP
check_regb!(r5_i8b i8 "r5");
|
