1  /* { dg-do compile } */
       2  /* { dg-additional-options "-O2 -fdump-tree-ompexp" } */
       3  /* { dg-additional-options "-march=pentium" { target ia32 } } */
       4  /* { dg-final { scan-tree-dump-times "\.ATOMIC_COMPARE_EXCHANGE \\\(\[^\n\r]*, 8, 5, 5\\\);" 1 "ompexp" { target sync_long_long } } } */
       5  /* { dg-final { scan-tree-dump-times "\.ATOMIC_COMPARE_EXCHANGE \\\(\[^\n\r]*, 8, 4, 2\\\);" 1 "ompexp" { target sync_long_long } } } */
       6  /* { dg-final { scan-tree-dump-times "\.ATOMIC_COMPARE_EXCHANGE \\\(\[^\n\r]*, 264, 5, 0\\\);" 1 "ompexp" { target sync_long_long } } } */
       7  /* { dg-final { scan-tree-dump-times "\.ATOMIC_COMPARE_EXCHANGE \\\(\[^\n\r]*, 8, 0, 0\\\);" 1 "ompexp" { target sync_long_long } } } */
       8  /* { dg-final { scan-tree-dump-not "__atomic_load_8 \\\(" "ompexp" { target sync_long_long } } } */
       9  
      10  double x;
      11  
      12  void
      13  foo (double y, double z)
      14  {
      15    #pragma omp atomic compare seq_cst
      16    x = x == y ? z : x;
      17  }
      18  
      19  double
      20  bar (double y, double z)
      21  {
      22    int r;
      23    #pragma omp atomic compare capture acq_rel fail (acquire)
      24    { r = x == y; if (r) { x = z; } }
      25    return r;
      26  }
      27  
      28  double
      29  baz (double y, double z)
      30  {
      31    double v;
      32    #pragma omp atomic compare capture seq_cst fail (relaxed) weak
      33    if (x == y) { x = z; } else { v = x; }
      34    return v;
      35  }
      36  
      37  double
      38  qux (double y, double z)
      39  {
      40    double v;
      41    #pragma omp atomic compare capture
      42    v = x = x == y ? z : x;
      43    return v;
      44  }