diff options
Diffstat (limited to 'gcc/tree-optimize.c')
| -rw-r--r-- | gcc/tree-optimize.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/gcc/tree-optimize.c b/gcc/tree-optimize.c index d66c1b9..bd4bb0d 100644 --- a/gcc/tree-optimize.c +++ b/gcc/tree-optimize.c @@ -101,6 +101,35 @@ static struct tree_opt_pass pass_all_optimizations = 0 /* todo_flags_finish */ }; +/* Pass: cleanup the CFG just before expanding trees to RTL. + This is just a round of label cleanups and case node grouping + because after the tree optimizers have run such cleanups may + be necessary. */ + +static void +execute_cleanup_cfg_post_optimizing (void) +{ + cleanup_tree_cfg (); + cleanup_dead_labels (); + group_case_labels (); +} + +static struct tree_opt_pass pass_cleanup_cfg_post_optimizing = +{ + NULL, /* name */ + NULL, /* gate */ + execute_cleanup_cfg_post_optimizing, /* execute */ + NULL, /* sub */ + NULL, /* next */ + 0, /* static_pass_number */ + 0, /* tv_id */ + PROP_cfg, /* properties_required */ + 0, /* properties_provided */ + 0, /* properties_destroyed */ + 0, /* todo_flags_start */ + 0 /* todo_flags_finish */ +}; + /* Pass: do the actions required to finish with tree-ssa optimization passes. */ @@ -324,6 +353,7 @@ init_tree_optimization_passes (void) NEXT_PASS (pass_del_ssa); NEXT_PASS (pass_nrv); NEXT_PASS (pass_remove_useless_vars); + NEXT_PASS (pass_cleanup_cfg_post_optimizing); *p = NULL; p = &pass_loop.sub; |