[gcc(refs/users/mikael/heads/refactor_descriptor_v291.01)] Extraction gfc_create_unallocated_library_result_descriptor

https://gcc.gnu.org/g:bf7cacb26ebc1650c0bd74bfd0cca9bf4b4dd410

commit bf7cacb26ebc1650c0bd74bfd0cca9bf4b4dd410
Author: Mikael Morin <[email protected]>
Date:   Wed Sep 10 20:38:07 2025 +0200

    Extraction gfc_create_unallocated_library_result_descriptor
    
    Déplacement gfc_create_unallocated_library_result_descriptor

Diff:
---
 gcc/fortran/trans-descriptor.cc | 17 +++++++++++++++++
 gcc/fortran/trans-descriptor.h  |  2 ++
 gcc/fortran/trans-expr.cc       | 10 ++--------
 3 files changed, 21 insertions(+), 8 deletions(-)

diff --git a/gcc/fortran/trans-descriptor.cc b/gcc/fortran/trans-descriptor.cc
index 3b2ffd91b1d0..aa490a165588 100644
--- a/gcc/fortran/trans-descriptor.cc
+++ b/gcc/fortran/trans-descriptor.cc
@@ -958,3 +958,20 @@ gfc_init_descriptor_variable (stmtblock_t *block, gfc_symbol *sym, tree descr)
 {
   return gfc_init_descriptor_variable (block, sym, nullptr, descr);
 }
+
+
+tree
+gfc_create_unallocated_library_result_descriptor (stmtblock_t *block, tree source_descr, tree dtype)
+{
+  if (dtype == NULL_TREE)
+    dtype = gfc_get_dtype (TREE_TYPE (source_descr));
+
+  gfc_conv_descriptor_dtype_set (block, source_descr, dtype);
+
+  tree res_desc = gfc_evaluate_now (source_descr, block);
+  gfc_conv_descriptor_data_set (block, res_desc, null_pointer_node);
+
+  return res_desc;
+}
+
+
diff --git a/gcc/fortran/trans-descriptor.h b/gcc/fortran/trans-descriptor.h
index 81869093b076..780a62d081e9 100644
--- a/gcc/fortran/trans-descriptor.h
+++ b/gcc/fortran/trans-descriptor.h
@@ -78,6 +78,8 @@ void gfc_nullify_descriptor (stmtblock_t *block, tree);
 void gfc_init_descriptor_result (stmtblock_t *block, tree descr);
 void gfc_init_absent_descriptor (stmtblock_t *block, tree descr);
 void gfc_init_static_descriptor (tree descr);
+tree gfc_create_unallocated_library_result_descriptor (stmtblock_t *, tree,
+						       tree);
 
 void gfc_init_descriptor_variable (stmtblock_t *block, gfc_symbol *sym, tree descr);
 
diff --git a/gcc/fortran/trans-expr.cc b/gcc/fortran/trans-expr.cc
index 1ff68977d7de..b95e7d3fa89e 100644
--- a/gcc/fortran/trans-expr.cc
+++ b/gcc/fortran/trans-expr.cc
@@ -12208,14 +12208,8 @@ fcncall_realloc_result (gfc_se *se, int rank, tree dtype)
     desc = build_fold_indirect_ref_loc (input_location, desc);
 
   /* Unallocated, the descriptor does not have a dtype.  */
-  if (dtype != NULL_TREE)
-    gfc_conv_descriptor_dtype_set (&se->pre, desc, dtype);
-  else
-    gfc_conv_descriptor_dtype_set (&se->pre, desc,
-				   gfc_get_dtype (TREE_TYPE (desc)));
-
-  res_desc = gfc_evaluate_now (desc, &se->pre);
-  gfc_conv_descriptor_data_set (&se->pre, res_desc, null_pointer_node);
+  res_desc = gfc_create_unallocated_library_result_descriptor (&se->pre, desc,
+							       dtype);
   se->expr = gfc_build_addr_expr (NULL_TREE, res_desc);
 
   /* Free the lhs after the function call and copy the result data to