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-rw-r--r--gcc/c-decl.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c
index b900e8a..9a0e747 100644
--- a/gcc/c-decl.c
+++ b/gcc/c-decl.c
@@ -1083,8 +1083,14 @@ validate_proto_after_old_defn (tree newdecl, tree newtype, tree oldtype)
for (;;)
{
- tree oldargtype = TYPE_MAIN_VARIANT (TREE_VALUE (oldargs));
- tree newargtype = TYPE_MAIN_VARIANT (TREE_VALUE (newargs));
+ tree oldargtype = TREE_VALUE (oldargs);
+ tree newargtype = TREE_VALUE (newargs);
+
+ if (oldargtype == error_mark_node || newargtype == error_mark_node)
+ return false;
+
+ oldargtype = TYPE_MAIN_VARIANT (oldargtype);
+ newargtype = TYPE_MAIN_VARIANT (newargtype);
if (END_OF_ARGLIST (oldargtype) && END_OF_ARGLIST (newargtype))
break;