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-rw-r--r--gcc/fortran/resolve.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c
index fe98b7e..d0aa6ad 100644
--- a/gcc/fortran/resolve.c
+++ b/gcc/fortran/resolve.c
@@ -6099,6 +6099,7 @@ resolve_allocate_expr (gfc_expr *e, gfc_code *code)
gfc_symbol *sym;
gfc_alloc *a;
gfc_component *c;
+ gfc_expr *init_e;
/* Check INTENT(IN), unless the object is a sub-component of a pointer. */
check_intent_in = 1;
@@ -6223,6 +6224,36 @@ resolve_allocate_expr (gfc_expr *e, gfc_code *code)
sym->name, &e->where);
return FAILURE;
}
+
+ if (!code->expr3)
+ {
+ /* Add default initializer for those derived types that need them. */
+ if (e->ts.type == BT_DERIVED
+ && (init_e = gfc_default_initializer (&e->ts)))
+ {
+ gfc_code *init_st = gfc_get_code ();
+ init_st->loc = code->loc;
+ init_st->op = EXEC_INIT_ASSIGN;
+ init_st->expr1 = gfc_expr_to_initialize (e);
+ init_st->expr2 = init_e;
+ init_st->next = code->next;
+ code->next = init_st;
+ }
+ else if (e->ts.type == BT_CLASS
+ && ((code->ext.alloc.ts.type == BT_UNKNOWN
+ && (init_e = gfc_default_initializer (&e->ts.u.derived->components->ts)))
+ || (code->ext.alloc.ts.type == BT_DERIVED
+ && (init_e = gfc_default_initializer (&code->ext.alloc.ts)))))
+ {
+ gfc_code *init_st = gfc_get_code ();
+ init_st->loc = code->loc;
+ init_st->op = EXEC_INIT_ASSIGN;
+ init_st->expr1 = gfc_expr_to_initialize (e);
+ init_st->expr2 = init_e;
+ init_st->next = code->next;
+ code->next = init_st;
+ }
+ }
if (pointer || dimension == 0)
return SUCCESS;