gcc/testsuite/gcc.dg/torture/pr109564-2.c

   1 /* { dg-do run } */
   2
   3 struct libkeccak_generalised_spec {
   4   int state_size;
   5   int word_size;
   6 } main_gspec;
   7
   8 long gvar;
   9
  10 int libkeccak_degeneralise_spec(struct libkeccak_generalised_spec *spec)
  11 {
  12   int state_size;
  13   int have_state_size = spec->state_size != -1;
  14   int have_word_size = spec->word_size;
  15
  16   if (have_state_size)
  17     state_size = spec->state_size;
  18   if (have_word_size)
  19     gvar = 12345;
  20   if (have_state_size && state_size != spec->word_size)
  21     return 1;
  22   if (spec)
  23     gvar++;
  24   return 0;
  25 }
  26
  27 int main()
  28 {
  29   main_gspec.state_size = -1;
  30   if (libkeccak_degeneralise_spec(&main_gspec))
  31     __builtin_abort();
  32   return 0;
  33 }