diff options
Diffstat (limited to 'gcc/stmt.c')
| -rw-r--r-- | gcc/stmt.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/stmt.c b/gcc/stmt.c index fc968bcbab3..b41b62bb8d0 100644 --- a/gcc/stmt.c +++ b/gcc/stmt.c @@ -4201,6 +4201,11 @@ expand_anon_union_decl (decl, cleanup, decl_elts) tree cleanup_elt = TREE_PURPOSE (t); enum machine_mode mode = TYPE_MODE (TREE_TYPE (decl_elt)); + /* If any of the elements are addressable, so is the entire + union. */ + if (TREE_USED (decl_elt)) + TREE_USED (decl) = 1; + /* Propagate the union's alignment to the elements. */ DECL_ALIGN (decl_elt) = DECL_ALIGN (decl); DECL_USER_ALIGN (decl_elt) = DECL_USER_ALIGN (decl); |