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clang-p2996/flang/test/Semantics/OpenMP/declarative-directive01.f90
Thirumalai Shaktivel e73ec1a74a [Flang][OpenMP] Add some semantic checks for Linear clause (#111354)
This PR adds all the missing semantics for the Linear clause based on
the OpenMP 5.2 restrictions. The restriction details are mentioned
below.

OpenMP 5.2:
5.4.6 linear Clause restrictions
- A linear-modifier may be specified as ref or uval only on a declare
simd directive.
- If linear-modifier is not ref, all list items must be of type integer.
- If linear-modifier is ref or uval, all list items must be dummy
arguments without the VALUE attribute.
- List items must not be Cray pointers or variables that have the
POINTER attribute. Cray pointer support has been deprecated.
- If linear-modifier is ref, list items must be polymorphic variables,
assumed-shape arrays, or variables with the ALLOCATABLE attribute.
- A common block name must not appear in a linear clause.
- The list-item cannot appear more than once

4.4.4 ordered Clause restriction
- If n is explicitly specified, a linear clause must not be specified on
the same directive.

5.11 aligned Clause restriction
- Each list item must have C_PTR or Cray pointer type or have the
POINTER or ALLOCATABLE attribute. Cray pointer support has been
deprecated.
2024-12-06 12:11:46 -06:00

103 lines
4.2 KiB
Fortran

! RUN: %python %S/../test_errors.py %s %flang -fopenmp -fopenmp-version=52
! Check OpenMP declarative directives
!TODO: all internal errors
! enable declare-reduction example after name resolution
! 2.4 requires
subroutine requires_1(a)
real(8), intent(inout) :: a
!$omp requires reverse_offload, unified_shared_memory, atomic_default_mem_order(relaxed)
a = a + 0.01
end subroutine requires_1
subroutine requires_2(a)
real(8), intent(inout) :: a
!$omp requires unified_address
a = a + 0.01
end subroutine requires_2
! 2.8.2 declare-simd
subroutine declare_simd_1(a, b)
real(8), intent(inout) :: a, b
!ERROR: 'a' in ALIGNED clause must be of type C_PTR, POINTER or ALLOCATABLE
!$omp declare simd(declare_simd_1) aligned(a)
a = 3.14 + b
end subroutine declare_simd_1
module m1
abstract interface
subroutine sub(x,y)
integer, intent(in)::x
integer, intent(in)::y
end subroutine sub
end interface
end module m1
subroutine declare_simd_2
use m1
procedure (sub) sub1
!ERROR: NOTINBRANCH and INBRANCH clauses are mutually exclusive and may not appear on the same DECLARE SIMD directive
!$omp declare simd(sub1) inbranch notinbranch
procedure (sub), pointer::p
p=>sub1
call p(5,10)
end subroutine declare_simd_2
subroutine sub1 (x,y)
integer, intent(in)::x, y
print *, x+y
end subroutine sub1
! 2.10.6 declare-target
! 2.15.2 threadprivate
module m2
contains
subroutine foo
!$omp declare target
!WARNING: The entity with PARAMETER attribute is used in a DECLARE TARGET directive
!WARNING: The entity with PARAMETER attribute is used in a DECLARE TARGET directive
!$omp declare target (foo, N, M)
!WARNING: The usage of TO clause on DECLARE TARGET directive has been deprecated. Use ENTER clause instead.
!ERROR: A variable that appears in a DECLARE TARGET directive must be declared in the scope of a module or have the SAVE attribute, either explicitly or implicitly
!ERROR: A variable that appears in a DECLARE TARGET directive must be declared in the scope of a module or have the SAVE attribute, either explicitly or implicitly
!ERROR: A variable that appears in a DECLARE TARGET directive must be declared in the scope of a module or have the SAVE attribute, either explicitly or implicitly
!$omp declare target to(Q, S) link(R)
!ERROR: A variable that appears in a DECLARE TARGET directive must be declared in the scope of a module or have the SAVE attribute, either explicitly or implicitly
!ERROR: A variable that appears in a DECLARE TARGET directive must be declared in the scope of a module or have the SAVE attribute, either explicitly or implicitly
!ERROR: A variable that appears in a DECLARE TARGET directive must be declared in the scope of a module or have the SAVE attribute, either explicitly or implicitly
!$omp declare target enter(Q, S) link(R)
!WARNING: The usage of TO clause on DECLARE TARGET directive has been deprecated. Use ENTER clause instead.
!ERROR: A variable that appears in a DECLARE TARGET directive must be declared in the scope of a module or have the SAVE attribute, either explicitly or implicitly
!ERROR: MAP clause is not allowed on the DECLARE TARGET directive
!$omp declare target to(Q) map(from:Q)
!ERROR: A variable that appears in a DECLARE TARGET directive must be declared in the scope of a module or have the SAVE attribute, either explicitly or implicitly
!ERROR: MAP clause is not allowed on the DECLARE TARGET directive
!$omp declare target enter(Q) map(from:Q)
integer, parameter :: N=10000, M=1024
integer :: i
real :: Q(N, N), R(N,M), S(M,M)
!ERROR: A variable that appears in a THREADPRIVATE directive must be declared in the scope of a module or have the SAVE attribute, either explicitly or implicitly
!$omp threadprivate(i)
end subroutine foo
end module m2
! 2.16 declare-reduction
! subroutine declare_red_1()
! use omp_lib
! integer :: my_var
! !$omp declare reduction (my_add_red : integer : omp_out = omp_out + omp_in) initializer (omp_priv=0)
! my_var = 0
! !$omp parallel reduction (my_add_red : my_var) num_threads(4)
! my_var = omp_get_thread_num() + 1
! !$omp end parallel
! print *, "sum of thread numbers is ", my_var
! end subroutine declare_red_1
end