9c87746de7
This patch implements @klausler's suggestion in `llvm-project` [issue #58973](https://github.com/llvm/llvm-project/issues/58973); encountering the `VOLATILE` attribute should produce a __warning__, not a __fatal error__. When tested on the following Fortran program `snem0601_012_.f90`: ```fortran module mod contains subroutine sub(m6,error) integer,intent(inout) :: error integer,volatile :: m6 if (any ((/m6/).ne.(/6/))) & & then error = 1 end if end subroutine end module program fe1nvol12 use mod integer :: error = 0 call sub(6,error) if (error .ne. 0) then print *,'NG: snem0601_012' end if print *,'pass: snem0601_012' end program fe1nvol12 ``` the following output is produced: ```bash $ flang-new -fc1 snem0601_012_.f90 /noback/93u/Sandbox/issue_58973_volatile_dummy_arg/snem0601_012_.f90:21:12: warning: actual argument associated with VOLATILE dummy argument 'm6=' is not a variable call sub(6,error) ^ ``` Reviewed By: clementval, klausler Differential Revision: https://reviews.llvm.org/D139134
61 lines
2.8 KiB
Fortran
61 lines
2.8 KiB
Fortran
! RUN: %python %S/test_errors.py %s %flang_fc1 -Werror
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! This test is responsible for checking the fix for passing non-variables as
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! actual arguments to subroutines/functions whose corresponding dummy argument
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! expects a VOLATILE variable
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! c.f. llvm-project GitHub issue #58973
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module m
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contains
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subroutine vol_dum_int(my_int)
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integer, volatile :: my_int
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end subroutine vol_dum_int
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subroutine vol_dum_real(my_real)
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real, volatile :: my_real
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end subroutine vol_dum_real
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subroutine vol_dum_complex(my_complex)
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complex, volatile :: my_complex
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end subroutine vol_dum_complex
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subroutine vol_dum_int_arr(my_int_arr)
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integer, dimension(2,2), volatile :: my_int_arr
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end subroutine vol_dum_int_arr
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subroutine test_all_subprograms()
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_int=' is not a variable
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call vol_dum_int(6)
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_int=' is not a variable
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call vol_dum_int(6+12)
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_int=' is not a variable
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call vol_dum_int(6*12)
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_int=' is not a variable
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call vol_dum_int(-6/2)
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_real=' is not a variable
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call vol_dum_real(3.141592653)
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_real=' is not a variable
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call vol_dum_real(3.141592653 + -10.6e-11)
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_real=' is not a variable
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call vol_dum_real(3.141592653 * 10.6e-11)
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_real=' is not a variable
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call vol_dum_real(3.141592653 / -10.6e-11)
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_complex=' is not a variable
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call vol_dum_complex((1., 3.2))
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_complex=' is not a variable
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call vol_dum_complex((1., 3.2) + (-2., 3.14))
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_complex=' is not a variable
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call vol_dum_complex((1., 3.2) * (-2., 3.14))
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_complex=' is not a variable
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call vol_dum_complex((1., 3.2) / (-2., 3.14))
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_int_arr=' is not a variable
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call vol_dum_int_arr((/ 1, 2, 3, 4 /))
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_int_arr=' is not a variable
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call vol_dum_int_arr(reshape((/ 1, 2, 3, 4 /), (/ 2, 2/)))
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!WARNING: actual argument associated with VOLATILE dummy argument 'my_int_arr=' is not a variable
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call vol_dum_int_arr((/ 1, 2, 3, 4 /))
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end subroutine test_all_subprograms
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end module m
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