(output_init_element): Update constructor_bit_index for union types.

From-SVN: r5350

diff --git a/gcc/c-typeck.c b/gcc/c-typeck.c
index 9e463cd..f363420 100644 (file)
--- a/gcc/c-typeck.c
+++ b/gcc/c-typeck.c
@@ -5987,8 +5987,10 @@ output_init_element (value, type, field, pending)
              output_constant (digest_init (type, value, 0, 0),
                               int_size_in_bytes (type));
 
-             /* For a record, keep track of end position of last field.  */
-             if (TREE_CODE (constructor_type) == RECORD_TYPE)
+             /* For a record or union,
+                keep track of end position of last field.  */
+             if (TREE_CODE (constructor_type) == RECORD_TYPE
+                 || TREE_CODE (constructor_type) == UNION_TYPE)
                {
                  tree temp = size_binop (PLUS_EXPR,
                                          DECL_FIELD_BITPOS (constructor_fields),