1 /* { dg-do compile } */
2 /* { dg-options "-O2 -fno-strict-aliasing -fdump-tree-optimized" } */
3
4 typedef unsigned u32;
5 typedef unsigned short u16;
6 typedef unsigned char u8;
7 struct biosregs {
8 union {
9 struct {
10 u32 edi;
11 u32 esi;
12 u32 ebp;
13 u32 _esp;
14 u32 ebx;
15 u32 edx;
16 u32 ecx;
17 u32 eax;
18 u32 _fsgs;
19 u32 _dses;
20 u32 eflags;
21 };
22 struct {
23 u16 di, hdi;
24 u16 si, hsi;
25 u16 bp, hbp;
26 u16 _sp, _hsp;
27 u16 bx, hbx;
28 u16 dx, hdx;
29 u16 cx, hcx;
30 u16 ax, hax;
31 u16 gs, fs;
32 u16 es, ds;
33 u16 flags, hflags;
34 };
35 struct {
36 u8 dil, dih, edi2, edi3;
37 u8 sil, sih, esi2, esi3;
38 u8 bpl, bph, ebp2, ebp3;
39 u8 _spl, _sph, _esp2, _esp3;
40 u8 bl, bh, ebx2, ebx3;
41 u8 dl, dh, edx2, edx3;
42 u8 cl, ch, ecx2, ecx3;
43 u8 al, ah, eax2, eax3;
44 };
45 };
46 };
47 void initregs(struct biosregs *regs);
48 void intcall(u8 int_no, const struct biosregs *ireg, struct biosregs *oreg);
49 static u32 *const gp = (u32*) 0x32;
keyboard_set_repeat(void)50 void keyboard_set_repeat(void)
51 {
52 struct biosregs ireg;
53 *gp = 10;
54 initregs(&ireg);
55 ireg.ax = 0x0305;
56 intcall(0x16, &ireg, ((void *)0));
57 }
58
59 /* { dg-final { scan-tree-dump-times "ireg.*ax" 1 "optimized"} } */
60
61