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/* { dg-do compile } */

/* { dg-options "-O2 -g" } */

struct __gcov_var {

   unsigned int offset;

   unsigned int buffer[(1 << 10) + 1];

} __gcov_var;

unsigned int * gcov_write_words (unsigned int words) {

   unsigned int *result;

   result = &__gcov_var.buffer[__gcov_var.offset];

   return result;

}

struct gcov_ctr_summary { };

struct gcov_summary {

   unsigned int checksum;

   struct gcov_ctr_summary ctrs[1];

};

void __gcov_write_unsigned (unsigned int);

void __gcov_write_summary (unsigned int tag,

                           const struct gcov_summary *summary)

{

   unsigned ix;

   const struct gcov_ctr_summary *csum;

   __gcov_write_unsigned (summary->checksum);

   for (csum = summary->ctrs, ix = 1; ix--; csum++) { }

}