diff options
Diffstat (limited to 'gcc/tree-dfa.c')
| -rw-r--r-- | gcc/tree-dfa.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/gcc/tree-dfa.c b/gcc/tree-dfa.c index 533b98884e6..3d7e4d4b4d6 100644 --- a/gcc/tree-dfa.c +++ b/gcc/tree-dfa.c @@ -188,9 +188,9 @@ compute_immediate_uses (int flags, bool (*calc_for)(tree)) } -/* Invalidates dataflow information for a statement STMT. */ +/* Invalidates dataflow information for a statement STMT. */ -static void +void free_df_for_stmt (tree stmt) { dataflow_t *df; @@ -221,7 +221,13 @@ free_df_for_stmt (tree stmt) } -/* Invalidate dataflow information for the whole function. */ +/* Invalidate dataflow information for the whole function. + + Note this only invalidates dataflow information on statements and + PHI nodes which are reachable. + + A deleted statement may still have attached dataflow information + on it. */ void free_df (void) |