diff options
Diffstat (limited to 'gcc/cfghooks.h')
| -rw-r--r-- | gcc/cfghooks.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gcc/cfghooks.h b/gcc/cfghooks.h index 6a91bd96c6c..06a06db4c5a 100644 --- a/gcc/cfghooks.h +++ b/gcc/cfghooks.h @@ -23,6 +23,38 @@ along with GCC; see the file COPYING3. If not see /* Only basic-block.h includes this. */ +/* Structure to gather statistic about profile consistency, per pass. + An array of this structure, indexed by pass static number, is allocated + in passes.c. The structure is defined here so that different CFG modes + can do their book-keeping via CFG hooks. + + For every field[2], field[0] is the count before the pass runs, and + field[1] is the post-pass count. This allows us to monitor the effect + of each individual pass on the profile consistency. + + This structure is not supposed to be used by anything other than passes.c + and one CFG hook per CFG mode. */ +struct profile_record +{ + /* The number of basic blocks where sum(freq) of the block's predecessors + doesn't match reasonably well with the incoming frequency. */ + int num_mismatched_freq_in[2]; + /* Likewise for a basic block's successors. */ + int num_mismatched_freq_out[2]; + /* The number of basic blocks where sum(count) of the block's predecessors + doesn't match reasonably well with the incoming frequency. */ + int num_mismatched_count_in[2]; + /* Likewise for a basic block's successors. */ + int num_mismatched_count_out[2]; + /* A weighted cost of the run-time of the function body. */ + gcov_type time[2]; + /* A weighted cost of the size of the function body. */ + int size[2]; + /* True iff this pass actually was run. */ + bool run; +}; + + struct cfg_hooks { /* Name of the corresponding ir. */ @@ -156,9 +188,11 @@ struct cfg_hooks extern void verify_flow_info (void); extern void dump_bb (FILE *, basic_block, int, int); extern void dump_bb_for_graph (pretty_printer *, basic_block); +extern void dump_flow_info (FILE *, int); extern edge redirect_edge_and_branch (edge, basic_block); extern basic_block redirect_edge_and_branch_force (edge, basic_block); +extern edge redirect_edge_succ_nodup (edge, basic_block); extern bool can_remove_branch_p (const_edge); extern void remove_branch (edge); extern void remove_edge (edge); |