mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-17 15:06:37 +00:00
3f6e0c24e6
Constraint checking for explicit SAVE attributes is more accurate when done along with other declaration checking, rather than on the fly during name resolution. This allows us to catch attempts to attach explicit SAVE attributes to anything that can't have one (constraints C859, C860). Also delete `IsSave()`, whose few remaining uses were changed to the more general `IsSaved()` predicate that seems more correct for those uses, returning true for both explicit and implied SAVE attributes. Differential Revision: https://reviews.llvm.org/D146579
73 lines
1.9 KiB
Fortran
73 lines
1.9 KiB
Fortran
! RUN: %python %S/test_errors.py %s %flang_fc1
|
|
!ERROR: The function result variable 'f1' may not have an explicit SAVE attribute
|
|
function f1(x, y)
|
|
!ERROR: The dummy argument 'x' may not have an explicit SAVE attribute
|
|
integer x
|
|
save x,y
|
|
!ERROR: The dummy argument 'y' may not have an explicit SAVE attribute
|
|
integer y
|
|
save f1
|
|
end
|
|
|
|
!ERROR: The entity 'f2' with an explicit SAVE attribute must be a variable, procedure pointer, or COMMON block
|
|
function f2(x, y) result(r)
|
|
save f2
|
|
!ERROR: The function result variable 'r' may not have an explicit SAVE attribute
|
|
real, save :: r
|
|
!ERROR: The dummy argument 'x' may not have an explicit SAVE attribute
|
|
complex, save :: x
|
|
allocatable :: y
|
|
!ERROR: The dummy argument 'y' may not have an explicit SAVE attribute
|
|
integer :: y
|
|
save :: y
|
|
end
|
|
|
|
! SAVE statement should not trigger the above errors
|
|
function f2b(x, y)
|
|
real :: x, y
|
|
save
|
|
end
|
|
|
|
subroutine s3(x)
|
|
!ERROR: The dummy argument 'x' may not have an explicit SAVE attribute
|
|
procedure(integer), pointer, save :: x
|
|
!ERROR: The entity 'y' with an explicit SAVE attribute must be a variable, procedure pointer, or COMMON block
|
|
procedure(integer), save :: y
|
|
end
|
|
|
|
subroutine s4
|
|
!WARNING: Explicit SAVE of 'z' is redundant due to global SAVE statement
|
|
save z
|
|
save
|
|
procedure(integer), pointer :: x
|
|
!WARNING: Explicit SAVE of 'x' is redundant due to global SAVE statement
|
|
save :: x
|
|
!WARNING: Explicit SAVE of 'y' is redundant due to global SAVE statement
|
|
integer, save :: y
|
|
end
|
|
|
|
subroutine s5
|
|
implicit none
|
|
integer x
|
|
block
|
|
!ERROR: No explicit type declared for 'x'
|
|
save x
|
|
end block
|
|
end
|
|
|
|
subroutine s7
|
|
!ERROR: 'x' appears as a COMMON block in a SAVE statement but not in a COMMON statement
|
|
save /x/
|
|
end
|
|
|
|
subroutine s8a(n)
|
|
integer :: n
|
|
real :: x(n) ! OK: save statement doesn't affect x
|
|
save
|
|
end
|
|
subroutine s8b(n)
|
|
integer :: n
|
|
!ERROR: The automatic object 'x' may not have an explicit SAVE attribute
|
|
real, save :: x(n)
|
|
end
|