flang/test/Semantics/OpenMP/omp-workshare04.f90

   1 ! RUN: %python %S/../test_errors.py %s %flang -fopenmp
   2 ! OpenMP Version 4.5
   3 ! 2.7.4 workshare Construct
   4 ! Checks for OpenMP Workshare construct
   5
   6 subroutine omp_workshare(aa, bb, cc, dd, ee, ff, n)
   7   integer i, j, n, a(10), b(10)
   8   integer, pointer :: p
   9   integer, target :: t
  10   real aa(n,n), bb(n,n), cc(n,n), dd(n,n), ee(n,n), ff(n,n)
  11
  12   !ERROR: The structured block in a WORKSHARE construct may consist of only SCALAR or ARRAY assignments, FORALL or WHERE statements, FORALL, WHERE, ATOMIC, CRITICAL or PARALLEL constructs
  13   !$omp workshare
  14   p => t
  15
  16   !$omp parallel
  17   cc = dd
  18   !$omp end parallel
  19
  20   !ERROR: OpenMP constructs enclosed in WORKSHARE construct may consist of ATOMIC, CRITICAL or PARALLEL constructs only
  21   !ERROR: A worksharing region may not be closely nested inside a worksharing, explicit task, taskloop, critical, ordered, atomic, or master region
  22   !$omp parallel workshare
  23   !ERROR: A worksharing region may not be closely nested inside a worksharing, explicit task, taskloop, critical, ordered, atomic, or master region
  24   !$omp single
  25   ee = ff
  26   !$omp end single
  27   !$omp end parallel workshare
  28
  29   where (aa .ne. 0) cc = bb / aa
  30
  31   where (b .lt. 2) b = sum(a)
  32
  33   where (aa .ge. 2.0)
  34     cc = aa + bb
  35   elsewhere
  36     cc = dd + ee
  37   end where
  38
  39   forall (i = 1:10, n > i) a(i) = b(i)
  40
  41   forall (j = 1:10)
  42     a(j) = a(j) + b(j)
  43   end forall
  44
  45   !$omp atomic update
  46   j = j + sum(a)
  47
  48   !$omp end workshare
  49
  50 end subroutine omp_workshare