gcc/testsuite/c-c++-common/cilk-plus/CK/cilk_for_grain_errors.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fcilkplus -Wunknown-pragmas" } */
   3 /* { dg-additional-options "-std=c99" { target c } } */
   4
   5
   6 char Array1[26];
   7
   8 #pragma cilk grainsize = 2 /* { dg-error "must be inside a function" } */
   9
  10 int main(int argc, char **argv)
  11 {
  12 /* This is OK.  */
  13 #pragma cilk grainsize = 2
  14   _Cilk_for (int ii = 0; ii < 10; ii++)
  15     Array1[ii] = 0;
  16
  17 #pragma cilk grainsize 2 /* { dg-error "expected '=' before numeric constant" } */
  18   _Cilk_for (int ii = 0; ii < 10; ii++)
  19     Array1[ii] = 0;
  20
  21 #pragma cilk grainsiz = 2 /* { dg-warning "-:ignoring #pragma cilk grainsiz" } */
  22   _Cilk_for (int ii = 0; ii < 10; ii++)
  23     Array1[ii] = 0;
  24
  25
  26 /* This is OK, it will do a type conversion to long int.  */
  27 #pragma cilk grainsize = 0.5
  28   _Cilk_for (int ii = 0; ii < 10; ii++)
  29     Array1[ii] = 0;
  30
  31 #pragma cilk grainsize = 1
  32   while (Array1[5] != 0) /* { dg-warning "is not followed by" } */
  33     {
  34     /* Blah */
  35     }
  36
  37 #pragma cilk grainsize = 1
  38   int q = 0; /* { dg-warning "is not followed by" } */
  39   _Cilk_for (q = 0; q < 10; q++) /* { dg-error "allows expression instead of declaration" "" { target c++ } } */
  40     Array1[q] = 5;
  41
  42   while (Array1[5] != 0)
  43     {
  44     /* Blah */
  45     }
  46
  47   return 0;
  48 }