diff options
Diffstat (limited to 'gcc/tree-ssa-loop.c')
| -rw-r--r-- | gcc/tree-ssa-loop.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/tree-ssa-loop.c b/gcc/tree-ssa-loop.c index aa99920..1e7d73b 100644 --- a/gcc/tree-ssa-loop.c +++ b/gcc/tree-ssa-loop.c @@ -311,6 +311,34 @@ struct tree_opt_pass pass_scev_cprop = 0 /* letter */ }; +/* Remove empty loops. */ + +static void +tree_ssa_empty_loop (void) +{ + if (!current_loops) + return; + + remove_empty_loops (current_loops); +} + +struct tree_opt_pass pass_empty_loop = +{ + "empty", /* name */ + NULL, /* gate */ + tree_ssa_empty_loop, /* execute */ + NULL, /* sub */ + NULL, /* next */ + 0, /* static_pass_number */ + TV_COMPLETE_UNROLL, /* tv_id */ + PROP_cfg | PROP_ssa, /* properties_required */ + 0, /* properties_provided */ + 0, /* properties_destroyed */ + 0, /* todo_flags_start */ + TODO_dump_func | TODO_verify_loops, /* todo_flags_finish */ + 0 /* letter */ +}; + /* Record bounds on numbers of iterations of loops. */ static void |