gcc/testsuite/gcc.dg/gomp/pr39495-2.c

   1 /* PR c/39495 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-fopenmp" } */
   4
   5 #define INT_MIN (-__INT_MAX__ - 1)
   6 #define INT_MAX __INT_MAX__
   7 #define UINT_MAX (2U * __INT_MAX__ + 1)
   8
   9 int
  10 foo (void)
  11 {
  12   int i;
  13   unsigned int u;
  14
  15 #pragma omp for
  16   for (i = INT_MIN + 6; i != INT_MIN; i--)
  17     ;
  18 #pragma omp for
  19   for (i = INT_MIN + 6; i == INT_MIN; i--)      /* { dg-error "invalid controlling predicate" } */
  20     ;
  21 #pragma omp for
  22   for (i = INT_MAX - 6; i != INT_MAX; i++)
  23     ;
  24 #pragma omp for
  25   for (i = INT_MAX - 6; i == INT_MAX; i++)      /* { dg-error "invalid controlling predicate" } */
  26     ;
  27 #pragma omp for
  28   for (u = 6; u != 0; u--)
  29     ;
  30 #pragma omp for
  31   for (u = 6; u == 0; u--)                      /* { dg-error "invalid controlling predicate" } */
  32     ;
  33 #pragma omp for
  34   for (u = UINT_MAX - 6; u != UINT_MAX; u++)
  35     ;
  36 #pragma omp for
  37   for (u = UINT_MAX - 6; u == UINT_MAX; u++)    /* { dg-error "invalid controlling predicate" } */
  38     ;
  39 }