1  /* { dg-do compile } */
       2  /* { dg-options "-O0 -dA -gbtf -mco-re -mlittle-endian" } */
       3  
       4  struct S {
       5    int x1: 6;
       6    int x2: 3;
       7    int x3: 7;
       8    int x4: 16;
       9  };
      10  
      11  enum {
      12    FIELD_LSHIFT_U64 = 4,
      13  };
      14  
      15  unsigned int foo (struct S *s)
      16  {
      17    /* little endian: x1=58, x2=55, x3=48, x4=32 */
      18    /* big endian:    x1=32, x2=38, x3=41, x4=48 */
      19    unsigned x1 = __builtin_preserve_field_info (s->x1, FIELD_LSHIFT_U64);
      20    unsigned x2 = __builtin_preserve_field_info (s->x2, FIELD_LSHIFT_U64);
      21    unsigned x3 = __builtin_preserve_field_info (s->x3, FIELD_LSHIFT_U64);
      22    unsigned x4 = __builtin_preserve_field_info (s->x4, FIELD_LSHIFT_U64);
      23  
      24    return x1 + x2 + x3 + x4;
      25  }
      26  
      27  /* { dg-final { scan-assembler-times "\[\t \]mov\[\t \]%r\[0-9\],58" 1 } } */
      28  /* { dg-final { scan-assembler-times "\[\t \]mov\[\t \]%r\[0-9\],55" 1 } } */
      29  /* { dg-final { scan-assembler-times "\[\t \]mov\[\t \]%r\[0-9\],48" 1 } } */
      30  /* { dg-final { scan-assembler-times "\[\t \]mov\[\t \]%r\[0-9\],32" 1 } } */
      31  
      32  /* { dg-final { scan-assembler-times "ascii \"0:0.0\"\[\t \]+\[^\n\]*btf_aux_string" 1 } } */
      33  /* { dg-final { scan-assembler-times "ascii \"0:1.0\"\[\t \]+\[^\n\]*btf_aux_string" 1 } } */
      34  /* { dg-final { scan-assembler-times "ascii \"0:2.0\"\[\t \]+\[^\n\]*btf_aux_string" 1 } } */
      35  /* { dg-final { scan-assembler-times "ascii \"0:3.0\"\[\t \]+\[^\n\]*btf_aux_string" 1 } } */
      36  
      37  /* { dg-final { scan-assembler-times "0x4\[\t \]+\[^\n\]*bpfcr_kind" 4 } } */