modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/pr38151.c (about)

     1  /* { dg-options "-Wno-psabi" } */
     2  /* { dg-require-effective-target int32plus } */
     3  void abort (void);
     4  
     5  struct S2848
     6  {
     7    unsigned int a;
     8    _Complex int b;
     9    struct
    10    {
    11    } __attribute__ ((aligned)) c;
    12  };
    13  
    14  struct S2848 s2848;
    15  
    16  int fails;
    17  
    18  void  __attribute__((noinline))
    19  check2848va (int z, ...)
    20  {
    21    struct S2848 arg;
    22    __builtin_va_list ap;
    23  
    24    __builtin_va_start (ap, z);
    25  
    26    arg = __builtin_va_arg (ap, struct S2848);
    27  
    28    if (s2848.a != arg.a)
    29      ++fails;
    30    if (s2848.b != arg.b)
    31      ++fails;
    32  
    33    __builtin_va_end (ap);
    34  }
    35  
    36  int main (void)
    37  {
    38    s2848.a = 4027477739U;
    39    s2848.b = (723419448 + -218144346 * __extension__ 1i);
    40  
    41    check2848va (1, s2848);
    42  
    43    if (fails)
    44      abort ();
    45  
    46    return 0;
    47  }
    48