https://gcc.gnu.org/g:02608142b0ba9f84cafdfefc2e944250db84780d

commit 02608142b0ba9f84cafdfefc2e944250db84780d
Author: Mikael Morin <mik...@gcc.gnu.org>
Date:   Tue Jan 21 18:53:50 2025 +0100

    Suppression set_subarray_descriptor

Diff:
---
 gcc/fortran/trans-expr.cc | 79 -----------------------------------------------
 1 file changed, 79 deletions(-)

diff --git a/gcc/fortran/trans-expr.cc b/gcc/fortran/trans-expr.cc
index 65b6cd8a4642..7a384261dc06 100644
--- a/gcc/fortran/trans-expr.cc
+++ b/gcc/fortran/trans-expr.cc
@@ -9418,83 +9418,6 @@ gfc_trans_subarray_assign (tree dest, gfc_component * 
cm, gfc_expr * expr)
 }
 
 
-static void
-set_subarray_descriptor (stmtblock_t *block, tree desc, tree value,
-                        gfc_expr *value_expr, gfc_expr *conv_arg)
-{
-  if (value_expr->expr_type != EXPR_VARIABLE)
-    gfc_conv_descriptor_data_set (block, value,
-                                 null_pointer_node);
-
-  /* Obtain the array spec of full array references.  */
-  gfc_array_spec *as;
-  if (conv_arg)
-    as = gfc_get_full_arrayspec_from_expr (conv_arg);
-  else
-    as = gfc_get_full_arrayspec_from_expr (value_expr);
-
-  /* Shift the lbound and ubound of temporaries to being unity,
-     rather than zero, based. Always calculate the offset.  */
-  tree offset = gfc_conv_descriptor_offset_get (desc);
-  gfc_add_modify (block, offset, gfc_index_zero_node);
-  tree tmp2 = gfc_create_var (gfc_array_index_type, NULL);
-
-  for (int n = 0; n < value_expr->rank; n++)
-    {
-      tree span;
-      tree lbound;
-
-      /* Obtain the correct lbound - ISO/IEC TR 15581:2001 page 9.
-        TODO It looks as if gfc_conv_expr_descriptor should return
-        the correct bounds and that the following should not be
-        necessary.  This would simplify gfc_conv_intrinsic_bound
-        as well.  */
-      if (as && as->lower[n])
-       {
-         gfc_se lbse;
-         gfc_init_se (&lbse, NULL);
-         gfc_conv_expr (&lbse, as->lower[n]);
-         gfc_add_block_to_block (block, &lbse.pre);
-         lbound = gfc_evaluate_now (lbse.expr, block);
-       }
-      else if (as && conv_arg)
-       {
-         tree tmp = gfc_get_symbol_decl (conv_arg->symtree->n.sym);
-         lbound = gfc_conv_descriptor_lbound_get (tmp,
-                                       gfc_rank_cst[n]);
-       }
-      else if (as)
-       lbound = gfc_conv_descriptor_lbound_get (desc,
-                                               gfc_rank_cst[n]);
-      else
-       lbound = gfc_index_one_node;
-
-      lbound = fold_convert (gfc_array_index_type, lbound);
-
-      /* Shift the bounds and set the offset accordingly.  */
-      tree tmp = gfc_conv_descriptor_ubound_get (desc, gfc_rank_cst[n]);
-      span = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
-               tmp, gfc_conv_descriptor_lbound_get (desc, gfc_rank_cst[n]));
-      tmp = fold_build2_loc (input_location, PLUS_EXPR, gfc_array_index_type,
-                            span, lbound);
-      gfc_conv_descriptor_ubound_set (block, desc,
-                                     gfc_rank_cst[n], tmp);
-      gfc_conv_descriptor_lbound_set (block, desc,
-                                     gfc_rank_cst[n], lbound);
-
-      tmp = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
-                        gfc_conv_descriptor_lbound_get (desc,
-                                                        gfc_rank_cst[n]),
-                        gfc_conv_descriptor_stride_get (desc,
-                                                        gfc_rank_cst[n]));
-      gfc_add_modify (block, tmp2, tmp);
-      tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
-                            offset, tmp2);
-      gfc_conv_descriptor_offset_set (block, desc, tmp);
-    }
-}
-
-
 static tree
 gfc_trans_alloc_subarray_assign (tree dest, gfc_component * cm,
                                 gfc_expr * expr)
@@ -9571,8 +9494,6 @@ gfc_trans_alloc_subarray_assign (tree dest, gfc_component 
* cm,
        && expr->value.function.actual->expr->expr_type == EXPR_VARIABLE)
     arg = expr->value.function.actual->expr;
 
-  set_subarray_descriptor (&block, dest, se.expr, expr, arg);
-
   if (arg)
     {
       /* If a conversion expression has a null data pointer

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