gcc/testsuite/gcc.dg/pr41248.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -g" } */
   3
   4 struct __gcov_var {
   5    unsigned int offset;
   6    unsigned int buffer[(1 << 10) + 1];
   7 } __gcov_var;
   8 unsigned int * gcov_write_words (unsigned int words) {
   9    unsigned int *result;
  10    result = &__gcov_var.buffer[__gcov_var.offset];
  11    return result;
  12 }
  13
  14 struct gcov_ctr_summary { };
  15 struct gcov_summary {
  16    unsigned int checksum;
  17    struct gcov_ctr_summary ctrs[1];
  18 };
  19 void __gcov_write_unsigned (unsigned int);
  20 void __gcov_write_summary (unsigned int tag,
  21                            const struct gcov_summary *summary)
  22 {
  23    unsigned ix;
  24    const struct gcov_ctr_summary *csum;
  25    __gcov_write_unsigned (summary->checksum);
  26    for (csum = summary->ctrs, ix = 1; ix--; csum++) { }
  27 }