diff options
Diffstat (limited to 'gcc/passes.c')
| -rw-r--r-- | gcc/passes.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/gcc/passes.c b/gcc/passes.c index 9cb2c5284e4..0ab5f4815e4 100644 --- a/gcc/passes.c +++ b/gcc/passes.c @@ -818,14 +818,19 @@ execute_function_todo (void *data) if (!flags) return; - /* Always cleanup the CFG before trying to update SSA . */ + /* Always cleanup the CFG before trying to update SSA. */ if (flags & TODO_cleanup_cfg) { + bool cleanup; + if (current_loops) - cleanup_tree_cfg_loop (); + cleanup = cleanup_tree_cfg_loop (); else - cleanup_tree_cfg (); + cleanup = cleanup_tree_cfg (); + if (cleanup && (cfun->curr_properties & PROP_ssa)) + flags |= TODO_remove_unused_locals; + /* When cleanup_tree_cfg merges consecutive blocks, it may perform some simplistic propagation when removing single valued PHI nodes. This propagation may, in turn, cause the |