Hello world,
this patch fixes the 9 regression in C interop with contiguous
arguments recently reported by Reinhold Bader.
ChangeLog and patch say it all. I hope I didn't overlook any
obvious things here (Paul, maybe you can take a look).
Regression-tested. OK for trunk?
Regards
Thomas
2019-02-18 Thomas Koenig <tkoe...@gcc.gnu.org>
PR fortran/89384
* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): If the dummy
argument is contiguous and the actual argument may not be,
use gfc_conv_subref_array_arg.
2019-02-18 Thomas Koenig <tkoe...@gcc.gnu.org>
PR fortran/89384
* gfortran.dg/ISO_Fortran_binding_4.f90
Index: trans-expr.c
===================================================================
--- trans-expr.c (Revision 268992)
+++ trans-expr.c (Arbeitskopie)
@@ -4944,7 +4944,12 @@ gfc_conv_gfc_desc_to_cfi_desc (gfc_se *parmse, gfc
if (e->rank != 0)
{
- gfc_conv_expr_descriptor (parmse, e);
+ if (fsym->attr.contiguous
+ && !gfc_is_simply_contiguous (e, false, true))
+ gfc_conv_subref_array_arg (parmse, e, false, fsym->attr.intent,
+ fsym->attr.pointer);
+ else
+ gfc_conv_expr_descriptor (parmse, e);
if (POINTER_TYPE_P (TREE_TYPE (parmse->expr)))
parmse->expr = build_fold_indirect_ref_loc (input_location,
! { dg-do run }
! PR fortran/89384 - this used to give a wrong results
! with contiguous.
! Test case by Reinhold Bader.
module mod_ctg
implicit none
contains
subroutine ctg(x) BIND(C)
real, contiguous :: x(:)
if (any(abs(x - [2.,4.,6.]) > 1.e-6)) then
write(*,*) 'FAIL'
else
write(*,*) 'OK'
end if
end subroutine
end module
program p
use mod_ctg
implicit none
real :: x(6)
integer :: i
x = [ (real(i), i=1, size(x)) ]
call ctg(x(2::2))
end program
