! RUN: %python %S/test_errors.py %s %flang_fc1
! XFAIL: *
! This test checks for semantic errors in co_reduce subroutine calls based on
! the co_reduce interface defined in section 16.9.49 of the Fortran 2018 standard.
! To Do: add co_reduce to the list of intrinsics
module foo_m
implicit none
type foo_t
integer :: n=0
contains
procedure :: derived_type_op
generic :: operator(+) => derived_type_op
end type
contains
pure function derived_type_op(lhs, rhs) result(lhs_op_rhs)
class(foo_t), intent(in) :: lhs, rhs
type(foo_t) lhs_op_rhs
lhs_op_rhs%n = lhs%n + rhs%n
end function
end module foo_m
program main
use foo_m, only : foo_t
implicit none
type(foo_t) foo
class(foo_t), allocatable :: polymorphic
integer i, status, integer_array(1)
real x
real vector(1)
real array(1,1,1, 1,1,1, 1,1,1, 1,1,1, 1,1,1)
character(len=1) string, message, character_array(1)
integer coindexed[*]
logical bool
! correct calls, should produce no errors
call co_reduce(i, int_op)
call co_reduce(i, int_op, status)
call co_reduce(i, int_op, stat=status)
call co_reduce(i, int_op, errmsg=message)
call co_reduce(i, int_op, stat=status, errmsg=message)
call co_reduce(i, int_op, result_image=1, stat=status, errmsg=message)
call co_reduce(i, operation=int_op, result_image=1, stat=status, errmsg=message)
call co_reduce(a=i, operation=int_op, result_image=1, stat=status, errmsg=message)
call co_reduce(array, operation=real_op, result_image=1, stat=status, errmsg=message)
call co_reduce(vector, operation=real_op, result_image=1, stat=status, errmsg=message)
call co_reduce(string, operation=char_op, result_image=1, stat=status, errmsg=message)
call co_reduce(foo, operation=left, result_image=1, stat=status, errmsg=message)
call co_reduce(result_image=1, operation=left, a=foo, errmsg=message, stat=status)
allocate(foo_t :: polymorphic)
! Test all statically verifiable semantic requirements on co_reduce arguments
! Note: We cannot check requirements that relate to "corresponding references."
! References can correspond only if they execute on differing images. A code that
! executes in a single image might be standard-conforming even if the same code
! executing in multiple images is not.
! argument 'a' cannot be polymorphic
!ERROR: to be determined
call co_reduce(polymorphic, derived_type_op)
! argument 'a' cannot be coindexed
!ERROR: (message to be determined)
call co_reduce(coindexed[1], int_op)
! argument 'a' is intent(inout)
!ERROR: (message to be determined)
call co_reduce(i + 1, int_op)
! operation must be a pure function
!ERROR: (message to be determined)
call co_reduce(i, operation=not_pure)
! operation must have exactly two arguments
!ERROR: (message to be determined)
call co_reduce(i, too_many_args)
! operation result must be a scalar
!ERROR: (message to be determined)
call co_reduce(i, array_result)
! operation result must be non-allocatable
!ERROR: (message to be determined)
call co_reduce(i, allocatable_result)
! operation result must be non-pointer
!ERROR: (message to be determined)
call co_reduce(i, pointer_result)
! operation's arguments must be scalars
!ERROR: (message to be determined)
call co_reduce(i, array_args)
! operation arguments must be non-allocatable
!ERROR: (message to be determined)
call co_reduce(i, allocatable_args)
! operation arguments must be non-pointer
!ERROR: (message to be determined)
call co_reduce(i, pointer_args)
! operation arguments must be non-polymorphic
!ERROR: (message to be determined)
call co_reduce(i, polymorphic_args)
! operation: type of 'operation' result and arguments must match type of argument 'a'
!ERROR: (message to be determined)
call co_reduce(i, real_op)
! operation: kind type parameter of 'operation' result and arguments must match kind type parameter of argument 'a'
!ERROR: (message to be determined)
call co_reduce(x, double_precision_op)
! arguments must be non-optional
!ERROR: (message to be determined)
call co_reduce(i, optional_args)
! if one argument is asynchronous, the other must be also
!ERROR: (message to be determined)
call co_reduce(i, asynchronous_mismatch)
! if one argument is a target, the other must be also
!ERROR: (message to be determined)
call co_reduce(i, target_mismatch)
! if one argument has the value attribute, the other must have it also
!ERROR: (message to be determined)
call co_reduce(i, value_mismatch)
! result_image argument must be an integer scalar
!ERROR: to be determined
call co_reduce(i, int_op, result_image=integer_array)
! result_image argument must be an integer
!ERROR: to be determined
call co_reduce(i, int_op, result_image=bool)
! stat not allowed to be coindexed
!ERROR: to be determined
call co_reduce(i, int_op, stat=coindexed[1])
! stat argument must be an integer scalar
!ERROR: to be determined
call co_reduce(i, int_op, result_image=1, stat=integer_array)
! stat argument has incorrect type
!ERROR: Actual argument for 'stat=' has bad type 'CHARACTER(KIND=1,LEN=1_8)'
call co_reduce(i, int_op, result_image=1, string)
! stat argument is intent(out)
!ERROR: to be determined
call co_reduce(i, int_op, result_image=1, stat=1+1)
! errmsg argument must not be coindexed
!ERROR: to be determined
call co_reduce(i, int_op, result_image=1, stat=status, errmsg=conindexed_string[1])
! errmsg argument must be a character scalar
!ERROR: to be determined
call co_reduce(i, int_op, result_image=1, stat=status, errmsg=character_array)
! errmsg argument must be a character
!ERROR: to be determined
call co_reduce(i, int_op, result_image=1, stat=status, errmsg=i)
! errmsg argument is intent(inout)
!ERROR: to be determined
call co_reduce(i, int_op, result_image=1, stat=status, errmsg="literal constant")
! too many arguments to the co_reduce() call
!ERROR: too many actual arguments for intrinsic 'co_reduce'
call co_reduce(i, int_op, result_image=1, stat=status, errmsg=message, 3.4)
! non-existent keyword argument
!ERROR: unknown keyword argument to intrinsic 'co_reduce'
call co_reduce(fake=3.4)
contains
pure function left(lhs, rhs) result(lhs_op_rhs)
type(foo_t), intent(in) :: lhs, rhs
type(foo_t) :: lhs_op_rhs
lhs_op_rhs = lhs
end function
pure function char_op(lhs, rhs) result(lhs_op_rhs)
character(len=1), intent(in) :: lhs, rhs
character(len=1) :: lhs_op_rhs
lhs_op_rhs = min(lhs, rhs)
end function
pure function real_op(lhs, rhs) result(lhs_op_rhs)
real, intent(in) :: lhs, rhs
real :: lhs_op_rhs
lhs_op_rhs = lhs + rhs
end function
pure function double_precision_op(lhs, rhs) result(lhs_op_rhs)
integer, parameter :: double = kind(1.0D0)
real(double), intent(in) :: lhs, rhs
real(double) lhs_op_rhs
lhs_op_rhs = lhs + rhs
end function
pure function int_op(lhs, rhs) result(lhs_op_rhs)
integer, intent(in) :: lhs, rhs
integer :: lhs_op_rhs
lhs_op_rhs = lhs + rhs
end function
function not_pure(lhs, rhs) result(lhs_op_rhs)
integer, intent(in) :: lhs, rhs
integer :: lhs_op_rhs
lhs_op_rhs = lhs + rhs
end function
pure function too_many_args(lhs, rhs, foo) result(lhs_op_rhs)
integer, intent(in) :: lhs, rhs, foo
integer lhs_op_rhs
lhs_op_rhs = lhs + rhs
end function
pure function array_result(lhs, rhs)
integer, intent(in) :: lhs, rhs
integer array_result(1)
array_result = lhs + rhs
end function
pure function allocatable_result(lhs, rhs)
integer, intent(in) :: lhs, rhs
integer, allocatable :: allocatable_result
allocatable_result = lhs + rhs
end function
pure function pointer_result(lhs, rhs)
integer, intent(in) :: lhs, rhs
integer, pointer :: pointer_result
allocate(pointer_result, source=lhs + rhs )
end function
pure function array_args(lhs, rhs)
integer, intent(in) :: lhs(1), rhs(1)
integer array_args
array_args = lhs(1) + rhs(1)
end function
pure function allocatable_args(lhs, rhs) result(lhs_op_rhs)
integer, intent(in), allocatable :: lhs, rhs
integer lhs_op_rhs
lhs_op_rhs = lhs + rhs
end function
pure function pointer_args(lhs, rhs) result(lhs_op_rhs)
integer, intent(in), pointer :: lhs, rhs
integer lhs_op_rhs
lhs_op_rhs = lhs + rhs
end function
pure function polymorphic_args(lhs, rhs) result(lhs_op_rhs)
class(foo_t), intent(in) :: lhs, rhs
type(foo_t) lhs_op_rhs
lhs_op_rhs%n = lhs%n + rhs%n
end function
pure function optional_args(lhs, rhs) result(lhs_op_rhs)
integer, intent(in), optional :: lhs, rhs
integer lhs_op_rhs
if (present(lhs) .and. present(rhs)) then
lhs_op_rhs = lhs + rhs
else
lhs_op_rhs = 0
end if
end function
pure function target_mismatch(lhs, rhs) result(lhs_op_rhs)
integer, intent(in), target :: lhs
integer, intent(in) :: rhs
integer lhs_op_rhs
lhs_op_rhs = lhs + rhs
end function
pure function value_mismatch(lhs, rhs) result(lhs_op_rhs)
integer, intent(in), value:: lhs
integer, intent(in) :: rhs
integer lhs_op_rhs
lhs_op_rhs = lhs + rhs
end function
pure function asynchronous_mismatch(lhs, rhs) result(lhs_op_rhs)
integer, intent(in), asynchronous:: lhs
integer, intent(in) :: rhs
integer lhs_op_rhs
lhs_op_rhs = lhs + rhs
end function
end program
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