1  /* { dg-do compile } */
       2  
       3  /* Force big-endian because for little-endian, combine generates this:
       4  
       5   (if_then_else (ne (zero_extract:DI (subreg:DI (truncate:SI (reg:DI 196)) 0) 
       6                   (const_int 1) 
       7                   (const_int 0)) 
       8               (const_int 0)) 
       9           (label_ref 20) 
      10           (pc))) 
      11  
      12    which does not get recognized as a valid bbit pattern.  The
      13    middle-end should be able to simplify this further.  */
      14  /* { dg-options "-march=octeon -meb" } */
      15  /* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
      16  
      17  /* { dg-final { scan-assembler-times "\tbbit\[01\]\t|\tbgez\t|\tbltz\t" 2 } } */
      18  /* { dg-final { scan-assembler-not "ext\t" } } */
      19  
      20  void abort (void);
      21  void abort1 (void);
      22  void exit (int);
      23  
      24  typedef unsigned long long ulong64;
      25  
      26  typedef struct bitfield_s {
      27    ulong64 a:1;
      28    ulong64 b:29;
      29    ulong64 c:1;
      30    ulong64 d:15;
      31    ulong64 f:18;
      32  } bitfield_t;
      33  
      34  void foo (bitfield_t*);
      35  
      36  bitfield_t bar;
      37  
      38  NOMIPS16 void
      39  f ()
      40  {
      41    foo(&bar);
      42    if (bar.a != 0x1)
      43      abort ();
      44    else if (!bar.c)
      45      abort1 ();
      46    else
      47      exit (0);
      48  }