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Diffstat (limited to 'gcc/tree-ssa-threadupdate.h')
| -rw-r--r-- | gcc/tree-ssa-threadupdate.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/tree-ssa-threadupdate.h b/gcc/tree-ssa-threadupdate.h index 087f2812311..fbad9f6bf34 100644 --- a/gcc/tree-ssa-threadupdate.h +++ b/gcc/tree-ssa-threadupdate.h @@ -47,4 +47,17 @@ extern void remove_jump_threads_including (edge); extern void delete_jump_thread_path (vec <class jump_thread_edge *> *); extern void remove_ctrl_stmt_and_useless_edges (basic_block, basic_block); extern void free_dom_edge_info (edge); + +enum bb_dom_status +{ + /* BB does not dominate latch of the LOOP. */ + DOMST_NONDOMINATING, + /* The LOOP is broken (there is no path from the header to its latch. */ + DOMST_LOOP_BROKEN, + /* BB dominates the latch of the LOOP. */ + DOMST_DOMINATING +}; + +enum bb_dom_status determine_bb_domination_status (struct loop *, basic_block); + #endif |