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Diffstat (limited to 'gcc/tree-ssa-threadupdate.h')
| -rw-r--r-- | gcc/tree-ssa-threadupdate.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/tree-ssa-threadupdate.h b/gcc/tree-ssa-threadupdate.h index 58e3a38..94c9bc8 100644 --- a/gcc/tree-ssa-threadupdate.h +++ b/gcc/tree-ssa-threadupdate.h @@ -24,7 +24,6 @@ along with GCC; see the file COPYING3. If not see enum jump_thread_edge_type { EDGE_START_JUMP_THREAD, - EDGE_FSM_THREAD, EDGE_COPY_SRC_BLOCK, EDGE_COPY_SRC_JOINER_BLOCK, EDGE_NO_COPY_SRC_BLOCK @@ -63,7 +62,7 @@ private: class jt_path_registry { public: - jt_path_registry (); + jt_path_registry (bool backedge_threads); virtual ~jt_path_registry (); bool register_jump_thread (vec<jump_thread_edge *> *); bool thread_through_all_blocks (bool peel_loop_headers); @@ -77,6 +76,9 @@ protected: private: virtual bool update_cfg (bool peel_loop_headers) = 0; jump_thread_path_allocator m_allocator; + // True if threading through back edges is allowed. This is only + // allowed in the generic copier in the backward threader. + bool m_backedge_threads; DISABLE_COPY_AND_ASSIGN (jt_path_registry); }; @@ -107,6 +109,8 @@ private: class back_jt_path_registry : public jt_path_registry { +public: + back_jt_path_registry (); private: bool update_cfg (bool peel_loop_headers) override; void adjust_paths_after_duplication (unsigned curr_path_num); |