1  /* { dg-do compile } */
       2  /* { dg-require-effective-target bswap } */
       3  /* { dg-require-effective-target stdint_types } */
       4  /* { dg-options "-O2 -fdump-tree-optimized" } */
       5  /* { dg-additional-options "-march=z900" { target s390-*-* } } */
       6  
       7  typedef int SItype __attribute__ ((mode (SI)));
       8  typedef int DItype __attribute__ ((mode (DI)));
       9  
      10  /* This variant comes from optimize-bswapsi-1.c swap32_d.  It detects a missing
      11     cast of MARKER_BYTE_UNKNOWN to uint64_t for the CASE_CONVERT case for host
      12     architecture where a left shift with too big an operand gives zero.  */
      13  
      14  SItype
      15  swap32 (SItype in)
      16  {
      17    return (((in >> 0) & 0xFF) << 24)
      18  	 | (((in >> 8) & 0xFF) << 16)
      19  	 | (((((DItype) in) & 0xFF00FF0000llu) >> 16) << 8)
      20  	 | (((in >> 24) & 0xFF) << 0);
      21  }
      22  
      23  /* { dg-final { scan-tree-dump-times "= __builtin_bswap32 \\\(" 1 "optimized" } } */