flang/test/Semantics/OpenACC/acc-atomic-validity.f90


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81

! RUN: %python %S/../test_errors.py %s %flang -fopenacc

! Check OpenACC clause validity for the following construct and directive:
!   2.12 Atomic

program openacc_atomic_validity

  implicit none

  integer :: i
  integer, parameter :: N = 256
  integer, dimension(N) :: c
  logical :: l


  !$acc parallel
  !$acc atomic update
  c(i) = c(i) + 1

  !$acc atomic update
  c(i) = c(i) + 1
  !$acc end atomic

  !$acc atomic write
  c(i) = 10

  !$acc atomic write if(l)
  c(i) = 10

  !$acc atomic write
  c(i) = 10
  !$acc end atomic

  !$acc atomic write if(.true.)
  c(i) = 10
  !$acc end atomic

  !$acc atomic read
  i = c(i)
  
  !$acc atomic read if(.true.)
  i = c(i)

  !$acc atomic read
  i = c(i)
  !$acc end atomic

  !$acc atomic read if(l) 
  i = c(i)
  !$acc end atomic

  !ERROR: FINALIZE clause is not allowed on the ATOMIC READ FINALIZE IF(L)
  !$acc atomic read finalize if(l) 
  i = c(i)
  !$acc end atomic

  !$acc atomic capture
  c(i) = i
  i = i + 1
  !$acc end atomic

  !$acc atomic capture if(l .EQV. .false.)
  c(i) = i
  i = i + 1
  !$acc end atomic

  !$acc atomic update
  !ERROR: RHS of atomic update statement must be scalar
  !ERROR: LHS of atomic update statement must be scalar
  c = c + 1

  !$acc atomic update if(i == 0)
  c(i) = c(i) + 1

  !ERROR: At most one IF clause can appear on the ATOMIC UPDATE IF(I == 0) IF(.TRUE.)
  !$acc atomic update if(i == 0) if(.true.)
  c(i) = c(i) + 1

  !$acc end parallel

end program openacc_atomic_validity