1comptime {
 2    asm volatile ("");
 3}
 4comptime {
 5    asm (""
 6        : [_] "" (-> u8),
 7    );
 8}
 9comptime {
10    asm (""
11        :
12        : [_] "" (0),
13    );
14}
15comptime {
16    asm ("" ::: .{});
17}
18export fn a() void {
19    asm ("");
20}
21export fn b() void {
22    asm (""
23        : [_] "" (-> u8),
24          [_] "" (-> u8),
25    );
26}
27export fn c() void {
28    var out: u8 = 0;
29    asm (""
30        : [_] "" (out),
31          [_] "" (out),
32          [_] "" (out),
33          [_] "" (out),
34          [_] "" (out),
35          [_] "" (out),
36          [_] "" (out),
37          [_] "" (out),
38          [_] "" (out),
39          [_] "" (out),
40          [_] "" (out),
41          [_] "" (out),
42          [_] "" (out),
43          [_] "" (out),
44          [_] "" (out),
45          [_] "" (out),
46          [_] "" (out),
47    );
48}
49export fn d() void {
50    asm volatile (""
51        :
52        : [_] "" (0),
53          [_] "" (0),
54          [_] "" (0),
55          [_] "" (0),
56          [_] "" (0),
57          [_] "" (0),
58          [_] "" (0),
59          [_] "" (0),
60          [_] "" (0),
61          [_] "" (0),
62          [_] "" (0),
63          [_] "" (0),
64          [_] "" (0),
65          [_] "" (0),
66          [_] "" (0),
67          [_] "" (0),
68          [_] "" (0),
69          [_] "" (0),
70          [_] "" (0),
71          [_] "" (0),
72          [_] "" (0),
73          [_] "" (0),
74          [_] "" (0),
75          [_] "" (0),
76          [_] "" (0),
77          [_] "" (0),
78          [_] "" (0),
79          [_] "" (0),
80          [_] "" (0),
81          [_] "" (0),
82          [_] "" (0),
83          [_] "" (0),
84          [_] "" (0),
85    );
86}
87
88// error
89//
90// :2:9: error: volatile is meaningless on global assembly
91// :5:5: error: global assembly cannot have inputs, outputs, or clobbers
92// :10:5: error: global assembly cannot have inputs, outputs, or clobbers
93// :16:5: error: global assembly cannot have inputs, outputs, or clobbers
94// :19:5: error: assembly expression with no output must be marked volatile
95// :24:12: error: inline assembly allows up to one output value
96// :46:12: error: too many asm outputs
97// :84:12: error: too many asm inputs