gcc/testsuite/gcc.target/bpf/core-builtin-exprlist-3.c

/* { dg-do compile } */
/* { dg-options "-O0 -dA -gbtf -mco-re" } */

struct T {
  int a;
  int b;
  struct U {
    int c;
    struct V {
      int d;
      int e[4];
      int f;
    } v;
  } u;
};

void func (struct T * foo)
{
  /* Access string: "0:2:1:1:3" */
  int *x;
  int *y;
  struct U *tmp;
  __builtin_preserve_access_index (({
    x =  &(foo->u.v.e[3]);
    tmp = &(foo->u);
  }));
  y = __builtin_preserve_access_index(tmp ? 0 : &(tmp->v.f));

  *x = 17;
  if (y != 0)
    *y = 16;
}

/* { dg-final { scan-assembler-times "ascii \"0:2:1:1:3.0\"\[\t \]+\[^\n\]*btf_aux_string" 1 } } */
/* { dg-final { scan-assembler-times "ascii \"0:2.0\"\[\t \]+\[^\n\]*btf_aux_string" 1 } } */
/* { dg-final { scan-assembler-times "ascii \"0:1:2.0\"\[\t \]+\[^\n\]*btf_aux_string" 1 } } */
/* { dg-final { scan-assembler-times "bpfcr_type" 3 } } */