mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-17 16:16:39 +00:00
573fc6187b
The infrastructure in semantics that is used to check that the left-hand sides of normal assignment statements are really definable variables was not being used to check whether the LHSs of pointer assignments are modifiable, and so most cases of unmodifiable pointers are left undiagnosed. Rework the semantics checking for pointer assignments, NULLIFY statements, pointer dummy arguments, &c. so that cases of unmodifiable pointers are properly caught. This has been done by extracting all the various definability checking code that has been implemented for different contexts in Fortran into one new facility. The new consolidated definability checking code returns messages meant to be attached as "because: " explanations to context-dependent errors like "left-hand side of assignment is not definable". These new error message texts and their attached explanations affect many existing tests, which have been updated. The testing infrastructure was extended by another patch to properly compare warnings and explanatory messages, which had been ignored until recently. Differential Revision: https://reviews.llvm.org/D136979
31 lines
1.4 KiB
Fortran
31 lines
1.4 KiB
Fortran
! RUN: %python %S/test_errors.py %s %flang_fc1
|
|
! NULL() intrinsic function error tests
|
|
program test_random_seed
|
|
integer :: size_arg
|
|
integer, parameter :: size_arg_const = 343
|
|
integer, dimension(3), parameter :: put_arg = [9,8,7]
|
|
integer :: get_arg_scalar
|
|
integer, dimension(3) :: get_arg
|
|
integer, dimension(3),parameter :: get_arg_const = [8,7,6]
|
|
call random_seed()
|
|
call random_seed(size_arg)
|
|
call random_seed(size=size_arg)
|
|
!ERROR: Actual argument associated with INTENT(OUT) dummy argument 'size=' is not definable
|
|
!BECAUSE: '343_4' is not a variable or pointer
|
|
call random_seed(size_arg_const) ! error, size arg must be definable
|
|
!ERROR: 'size=' argument has unacceptable rank 1
|
|
call random_seed([1, 2, 3, 4]) ! Error, must be a scalar
|
|
call random_seed(put = [1, 2, 3, 4])
|
|
call random_seed(put = put_arg)
|
|
!ERROR: 'size=' argument has unacceptable rank 1
|
|
call random_seed(get_arg) ! Error, must be a scalar
|
|
call random_seed(get=get_arg)
|
|
!ERROR: 'get=' argument has unacceptable rank 0
|
|
call random_seed(get=get_arg_scalar) ! Error, GET arg must be of rank 1
|
|
!ERROR: Actual argument associated with INTENT(OUT) dummy argument 'get=' is not definable
|
|
!BECAUSE: '[INTEGER(4)::8_4,7_4,6_4]' is not a variable or pointer
|
|
call random_seed(get=get_arg_const) ! Error, GET arg must be definable
|
|
!ERROR: RANDOM_SEED must have either 1 or no arguments
|
|
call random_seed(size_arg, get_arg) ! Error, only 0 or 1 argument
|
|
end program
|