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/* PR 21171.  Ivopts should not rewrite references to volatile memory.  */

/* { dg-do compile } */

/* { dg-options "-O1 -fdump-tree-vars" } */

typedef unsigned int u_int32_t;

typedef unsigned char u_int8_t;

#define AIC_VECTORS     32

typedef volatile struct AT91RM9200_regs {

  u_int32_t     SVR[AIC_VECTORS];

} AT91RM9200_regs_t;

#define CPUReg  ((AT91RM9200_regs_t*)0xFFF00000)

extern const u_int32_t __IntTable[AIC_VECTORS];

int main()

{

  int c;

  for (c = 0; c < AIC_VECTORS; c++)

    CPUReg->SVR[c] = __IntTable[c];

  return 0;

}

/* { dg-final { scan-tree-dump-times "SVR" 1 "vars"} } */

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