[Bug fortran/100132] Optimization breaks pointer association
anlauf at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Sun Sep 18 19:11:59 GMT 2022
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100132
anlauf at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |anlauf at gcc dot gnu.org
--- Comment #3 from anlauf at gcc dot gnu.org ---
(In reply to José Rui Faustino de Sousa from comment #1)
> Patch posted
>
> https://gcc.gnu.org/pipermail/fortran/2021-April/055946.html
The patch is technically fine and regtests ok, but was unfortunately never
reviewed.
The basic fix can be slightly shortened to:
diff --git a/gcc/fortran/trans-types.cc b/gcc/fortran/trans-types.cc
index 0ea7c74a6f1..c062a5b29d7 100644
--- a/gcc/fortran/trans-types.cc
+++ b/gcc/fortran/trans-types.cc
@@ -3054,12 +3054,23 @@ create_fn_spec (gfc_symbol *sym, tree fntype)
for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
if (spec_len < sizeof (spec))
{
- if (!f->sym || f->sym->attr.pointer || f->sym->attr.target
+ bool is_class = false;
+ bool is_pointer = false;
+
+ if (f->sym)
+ {
+ is_class = f->sym->ts.type == BT_CLASS && CLASS_DATA (f->sym)
+ && f->sym->attr.class_ok;
+ is_pointer = is_class ? CLASS_DATA (f->sym)->attr.class_pointer
+ : f->sym->attr.pointer;
+ }
+
+ if (f->sym == NULL || is_pointer || f->sym->attr.target
|| f->sym->attr.external || f->sym->attr.cray_pointer
|| (f->sym->ts.type == BT_DERIVED
&& (f->sym->ts.u.derived->attr.proc_pointer_comp
|| f->sym->ts.u.derived->attr.pointer_comp))
- || (f->sym->ts.type == BT_CLASS
+ || (is_class
&& (CLASS_DATA (f->sym)->ts.u.derived->attr.proc_pointer_comp
|| CLASS_DATA (f->sym)->ts.u.derived->attr.pointer_comp))
|| (f->sym->ts.type == BT_INTEGER && f->sym->ts.is_c_interop))
I can take care of it for you.
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