1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/tree.c b/gcc/tree.c
index e906cdc..bace9c8 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -5280,6 +5280,7 @@ free_lang_data_in_decl (tree decl)
   free_lang_data_in_one_sizepos (&DECL_SIZE_UNIT (decl));
   if (TREE_CODE (decl) == FIELD_DECL)
     {
+      DECL_FCONTEXT (decl) = NULL;
       free_lang_data_in_one_sizepos (&DECL_FIELD_OFFSET (decl));
       if (TREE_CODE (DECL_CONTEXT (decl)) == QUAL_UNION_TYPE)
 	DECL_QUALIFIER (decl) = NULL_TREE;