diff options
Diffstat (limited to 'gcc/tree.c')
| -rw-r--r-- | gcc/tree.c | 10 |
1 files changed, 7 insertions, 3 deletions
@@ -877,11 +877,12 @@ make_node (code) tree_node_sizes[(int)kind] += length; #endif - /* We assume here that the length of a tree node is a multiple of the - size of an int. Rounding up won't work because it would clobber - the next object. */ + /* Clear a word at a time. */ for (i = (length / sizeof (int)) - 1; i >= 0; i--) ((int *) t)[i] = 0; + /* Clear any extra bytes. */ + for (i = length / sizeof (int) * sizeof (int); i < length; i++) + ((char *) t)[i] = 0; TREE_SET_CODE (t, code); if (obstack == &permanent_obstack) @@ -978,6 +979,9 @@ copy_node (node) for (i = (length / sizeof (int)) - 1; i >= 0; i--) ((int *) t)[i] = ((int *) node)[i]; + /* Clear any extra bytes. */ + for (i = length / sizeof (int) * sizeof (int); i < length; i++) + ((char *) t)[i] = 0; TREE_CHAIN (t) = 0; |