From 8b6f1e8f97fe0d435d334075821149dbd85c8266 Mon Sep 17 00:00:00 2001 From: Harald Anlauf Date: Wed, 6 Jan 2021 19:37:11 +0100 Subject: [PATCH] PR fortran/78746 - invalid access after error recovery The error recovery after an invalid reference to an undefined CLASS during a TYPE declaration lead to an invalid access. Add a check. gcc/fortran/ChangeLog: * resolve.c (resolve_component): Add check for valid CLASS reference before trying to access CLASS data. --- gcc/fortran/resolve.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c index fa6f756d285..1fac183e200 100644 --- a/gcc/fortran/resolve.c +++ b/gcc/fortran/resolve.c @@ -14384,7 +14384,7 @@ resolve_component (gfc_component *c, gfc_symbol *sym) /* F2008, C448. */ if (c->ts.type == BT_CLASS) { - if (CLASS_DATA (c)) + if (c->attr.class_ok && CLASS_DATA (c)) { attr = &(CLASS_DATA (c)->attr); -- 2.30.2