Tim Keith fa5e4482e0 [flang] Don't use-associate intrinsics
When an intrinsic is referenced in a module scope, a symbol for it is
added. When that module is USEd, the intrinsic should not be included.
Otherwise we can get ambiguous reference errors with the same intrinsic
coming from two difference modules.

Differential Revision: https://reviews.llvm.org/D83905
2020-07-15 15:08:08 -07:00

33 lines
664 B
Fortran

! RUN: %S/test_errors.sh %s %t %f18
module m1
integer :: x
integer :: y
integer :: z
integer, parameter :: k1 = selected_int_kind(9)
end
module m2
real :: y
real :: z
real :: w
integer, parameter :: k2 = selected_int_kind(9)
end
program p1
use m1
use m2
! check that selected_int_kind is not use-associated
integer, parameter :: k = selected_int_kind(9)
end
program p2
use m1, xx => x, y => z
use m2
volatile w
!ERROR: Cannot change CONTIGUOUS attribute on use-associated 'w'
contiguous w
!ERROR: 'z' is use-associated from module 'm2' and cannot be re-declared
integer z
!ERROR: Reference to 'y' is ambiguous
y = 1
end