1  /* PR c/53037.  */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O0 -Wall" } */
       4  /* { dg-require-effective-target int32 } */
       5  
       6  struct __attribute__ ((aligned (8))) S8 { char a[8]; };
       7  struct __attribute__ ((packed)) S1 {
       8    struct S8 s8;
       9  }; /* { dg-warning "alignment 1 of 'struct S1' is less than 8" } */
      10  
      11  struct __attribute__ ((packed, aligned (8))) S2 {
      12    struct S8 s8;
      13  };
      14  
      15  struct __attribute__ ((packed, aligned (8))) S3 {
      16    int i1;
      17    struct S8 s8; /* { dg-warning "'s8' offset 4 in 'struct S3' isn't aligned to 8" } */
      18  };
      19  
      20  struct __attribute__ ((packed, aligned (8))) S4 {
      21    int i1;
      22    int i2;
      23    struct S8 s8;
      24  };
      25  
      26  struct __attribute__ ((packed)) S5 {
      27     long long ll;
      28  };
      29  
      30  union __attribute__ ((packed)) U1 {
      31    int i1;
      32    struct S8 s8;
      33  }; /* { dg-warning "alignment 1 of 'union U1' is less than 8" } */
      34  
      35  union __attribute__ ((packed, aligned (8))) U2 {
      36    int i1;
      37    struct S8 s8;
      38  };