Fortran] PR92277 - Fix assumed-rank array with bind(C)

        gcc/fortran/
        PR fortran/92277
        * trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Fix DECL_ARTIFICIAL
        checking.

        gcc/testsuite/
        PR fortran/92277
        * fortran.dg/pr92277.f90: New.

From-SVN: r277661

gcc/fortran/ChangeLog

+2019-10-31  Tobias Burnus  <tobias@codesourcery.com>
+
+	PR fortran/92277
+	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Fix DECL_ARTIFICIAL
+	checking.
+
 2019-10-30  Tobias Burnus  <tobias@codesourcery.com>
 
 	PR fortran/92208

gcc/fortran/trans-expr.c

@@ -5239,6 +5239,9 @@ gfc_conv_gfc_desc_to_cfi_desc (gfc_se *parmse, gfc_expr *e, gfc_symbol *fsym)
       if (POINTER_TYPE_P (TREE_TYPE (parmse->expr)))
 	parmse->expr = build_fold_indirect_ref_loc (input_location,
 						    parmse->expr);
+      bool is_artificial = (INDIRECT_REF_P (parmse->expr)
+			    ? DECL_ARTIFICIAL (TREE_OPERAND (parmse->expr, 0))
+			    : DECL_ARTIFICIAL (parmse->expr));
 
       /* Unallocated allocatable arrays and unassociated pointer arrays
 	 need their dtype setting if they are argument associated with
@@ -5258,7 +5261,7 @@ gfc_conv_gfc_desc_to_cfi_desc (gfc_se *parmse, gfc_expr *e, gfc_symbol *fsym)
       type = e->ts.type != BT_ASSUMED ? gfc_typenode_for_spec (&e->ts) :
 					NULL_TREE;
 
-      if (type && DECL_ARTIFICIAL (parmse->expr)
+      if (type && is_artificial
 	  && type != gfc_get_element_type (TREE_TYPE (parmse->expr)))
 	{
 	  /* Obtain the offset to the data.  */
@@ -5271,7 +5274,7 @@ gfc_conv_gfc_desc_to_cfi_desc (gfc_se *parmse, gfc_expr *e, gfc_symbol *fsym)
 			  gfc_get_dtype_rank_type (e->rank, type));
 	}
       else if (type == NULL_TREE
-	       || (!is_subref_array (e) && !DECL_ARTIFICIAL (parmse->expr)))
+	       || (!is_subref_array (e) && !is_artificial))
 	{
 	  /* Make sure that the span is set for expressions where it
 	     might not have been done already.  */

gcc/testsuite/ChangeLog

+2019-10-31  Tobias Burnus  <tobias@codesourcery.com>
+
+	PR fortran/92277
+	* fortran.dg/pr92277.f90: New.
+
 2019-10-31  Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/92231

gcc/testsuite/gfortran.dg/pr92277.f90

+! { dg-do compile }
+!
+! PR fortran/92277
+!
+! Contributed by José Rui Faustino de Sousa
+!
+module arr_m
+  implicit none
+contains
+  subroutine arr_set(this, that)
+    integer, intent(out) :: this(..)
+    integer, optional, intent(out) :: that(..)
+
+    interface
+      subroutine arr_set_c(this) bind(c)
+        use, intrinsic :: iso_c_binding, only: c_int
+        implicit none
+        integer(kind=c_int), intent(out) :: this(..)
+      end subroutine arr_set_c
+      subroutine arr_set_c_opt(this) bind(c)
+        use, intrinsic :: iso_c_binding, only: c_int
+        implicit none
+        integer(kind=c_int), optional, intent(out) :: this(..)
+      end subroutine arr_set_c_opt
+    end interface
+
+    call arr_set_c(this)
+    call arr_set_c(that)
+    call arr_set_c_opt(this)
+    call arr_set_c_opt(that)
+  end subroutine arr_set
+end module arr_m