gcc/testsuite/gcc.dg/torture/pr55964-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-ftree-loop-distribution -funswitch-loops" } */
   3
   4 struct test_struct {
   5     int a, b[10], c[10], d[10];
   6 };
   7
   8 extern struct test_struct* new_struct;
   9
  10 void testfunc(struct test_struct* old_struct)
  11 {
  12   int i;
  13   for (i = 0; i < 10; ++i)
  14     {
  15       new_struct->b[i] = old_struct ? old_struct->b[i] : -1;
  16       new_struct->c[i] = old_struct ? old_struct->c[i] : 0;
  17       new_struct->d[i] = old_struct ? old_struct->d[i] : 0;
  18     }
  19   if (old_struct)
  20     old_struct->a++;
  21 }