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/* { dg-do compile } */

/* { dg-options "-O2 -fno-strict-aliasing -fdump-tree-optimized" } */

typedef unsigned u32;

typedef unsigned short u16;

typedef unsigned char u8;

struct biosregs {

 union {

  struct {

   u32 edi;

   u32 esi;

   u32 ebp;

   u32 _esp;

   u32 ebx;

   u32 edx;

   u32 ecx;

   u32 eax;

   u32 _fsgs;

   u32 _dses;

   u32 eflags;

  };

  struct {

   u16 di, hdi;

   u16 si, hsi;

   u16 bp, hbp;

   u16 _sp, _hsp;

   u16 bx, hbx;

   u16 dx, hdx;

   u16 cx, hcx;

   u16 ax, hax;

   u16 gs, fs;

   u16 es, ds;

   u16 flags, hflags;

  };

  struct {

   u8 dil, dih, edi2, edi3;

   u8 sil, sih, esi2, esi3;

   u8 bpl, bph, ebp2, ebp3;

   u8 _spl, _sph, _esp2, _esp3;

   u8 bl, bh, ebx2, ebx3;

   u8 dl, dh, edx2, edx3;

   u8 cl, ch, ecx2, ecx3;

   u8 al, ah, eax2, eax3;

  };

 };

};

void initregs(struct biosregs *regs);

void intcall(u8 int_no, const struct biosregs *ireg, struct biosregs *oreg);

static u32 *const gp = (u32*) 0x32;

void keyboard_set_repeat(void)

{

 struct biosregs ireg;

 *gp = 10;

 initregs(&ireg);

 ireg.ax = 0x0305;

 intcall(0x16, &ireg, ((void *)0));

}

/* { dg-final { scan-tree-dump-times "ireg.*ax" 1 "optimized"} } */

/* { dg-final { cleanup-tree-dump "optimized" } } */