1  /* Test of worker-private variables declared in a local scope, broadcasting
       2     to vector-partitioned mode.  Successive vector loops.  */
       3  
       4  /* { dg-additional-options "--param=openacc-kernels=decompose" } */
       5  
       6  /* { dg-additional-options "-fopt-info-omp-all" }
       7     { dg-additional-options "-foffload=-fopt-info-omp-all" } */
       8  
       9  /* { dg-additional-options "--param=openacc-privatization=noisy" }
      10     { dg-additional-options "-foffload=--param=openacc-privatization=noisy" }
      11     Prune a few: uninteresting:
      12     { dg-prune-output {note: variable 'D\.[0-9]+' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} } */
      13  
      14  /* It's only with Tcl 8.5 (released in 2007) that "the variable 'varName'
      15     passed to 'incr' may be unset, and in that case, it will be set to [...]",
      16     so to maintain compatibility with earlier Tcl releases, we manually
      17     initialize counter variables:
      18     { dg-line l_dummy[variable c_compute 0 c_loop_i 0 c_loop_j 0 c_loop_k 0] }
      19     { dg-message "dummy" "" { target iN-VAl-Id } l_dummy } to avoid
      20     "WARNING: dg-line var l_dummy defined, but not used".  */
      21  
      22  #include <assert.h>
      23  
      24  int
      25  main (int argc, char* argv[])
      26  {
      27    int x = 5, i, arr[32 * 32 * 32];
      28  
      29    for (i = 0; i < 32 * 32 * 32; i++)
      30      arr[i] = i;
      31  
      32    #pragma acc kernels copy(arr) /* { dg-line l_compute[incr c_compute] } */
      33    /* [PR104784] For some reason, for C++, the OpenACC 'kernels' decomposition
      34       decides that a data region is needed for 'j', and subsequently requests it
      35       to be made addressable.
      36       { dg-note {OpenACC 'kernels' decomposition: variable 'j' declared in block requested to be made addressable} {} { target c++ } l_compute$c_compute }
      37       { dg-note {variable 'j' made addressable} {} { target c++ } l_compute$c_compute }
      38       { dg-note {variable 'j' declared in block is candidate for adjusting OpenACC privatization level} {} { target c++ } l_compute$c_compute } */
      39    {
      40      int j;
      41  
      42      /* { dg-note {forwarded loop nest in OpenACC 'kernels' region to 'parloops' for analysis} {} { target *-*-* } .+1 } */
      43      #pragma acc loop gang(num:32) /* { dg-line l_loop_i[incr c_loop_i] } */
      44      /* { dg-note {variable 'j' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target c } l_loop_i$c_loop_i } */
      45      /* { dg-note {variable 'i' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_i$c_loop_i } */
      46      for (i = 0; i < 32; i++)
      47        {
      48          #pragma acc loop worker(num:32) /* { dg-line l_loop_j[incr c_loop_j] } */
      49  	/* { dg-note {variable 'j' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j } */
      50  	/* { dg-note {variable 'k' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j } */
      51  	/* { dg-note {variable 'x' declared in block isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_j$c_loop_j } */
      52  	for (j = 0; j < 32; j++)
      53  	  {
      54  	    int k;
      55  	    int x = i ^ j * 3;
      56  
      57  	    #pragma acc loop vector(length:32) /* { dg-line l_loop_k[incr c_loop_k] } */
      58  	    /* { dg-note {variable 'k' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_k$c_loop_k } */
      59  	    for (k = 0; k < 32; k++)
      60  	      arr[i * 1024 + j * 32 + k] += x * k;
      61  	    
      62  	    x = i | j * 5;
      63  	    
      64  	    #pragma acc loop vector(length:32) /* { dg-line l_loop_k[incr c_loop_k] } */
      65  	    /* { dg-note {variable 'k' in 'private' clause isn't candidate for adjusting OpenACC privatization level: not addressable} {} { target *-*-* } l_loop_k$c_loop_k } */
      66  	    for (k = 0; k < 32; k++)
      67  	      arr[i * 1024 + j * 32 + k] += x * k;
      68  	  }
      69        }
      70      /* { dg-optimized {assigned OpenACC seq loop parallelism} {} { target *-*-* } l_loop_i$c_loop_i } */
      71    }
      72  
      73    for (i = 0; i < 32; i++)
      74      for (int j = 0; j < 32; j++)
      75        for (int k = 0; k < 32; k++)
      76          {
      77  	  int idx = i * 1024 + j * 32 + k;
      78            assert (arr[idx] == idx + (i ^ j * 3) * k + (i | j * 5) * k);
      79  	}
      80  
      81    return 0;
      82  }