[gcc(refs/users/mikael/heads/refactor_descriptor_v05)] Correction régression class_assign_3

[Mikael Morin]

https://gcc.gnu.org/g:96fc3ec7b778fe74e8c275a471a2f481387ebdb5

commit 96fc3ec7b778fe74e8c275a471a2f481387ebdb5
Author: Mikael Morin <mikael@gcc.gnu.org>
Date:   Tue Apr 15 16:51:23 2025 +0200

    Correction régression class_assign_3

Diff:
---
 gcc/fortran/trans-types.cc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/gcc/fortran/trans-types.cc b/gcc/fortran/trans-types.cc
index b1bb2ba32728..32938a69cf65 100644
--- a/gcc/fortran/trans-types.cc
+++ b/gcc/fortran/trans-types.cc
@@ -2209,8 +2209,11 @@ gfc_get_array_type_bounds (tree etype, int dimen, int codimen, tree * lbound,
   else
     {
       stride = gfc_index_one_node;
-      spacing = fold_convert_loc (input_location, gfc_array_index_type,
-				  TYPE_SIZE_UNIT (etype));
+      if (dimen == 0)
+	spacing = NULL_TREE;
+      else
+	spacing = fold_convert_loc (input_location, gfc_array_index_type,
+				    TYPE_SIZE_UNIT (etype));
     }
   for (n = 0; n < dimen + codimen; n++)
     {