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Diffstat (limited to 'gcc/tree-ssa-threadupdate.c')
| -rw-r--r-- | gcc/tree-ssa-threadupdate.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/tree-ssa-threadupdate.c b/gcc/tree-ssa-threadupdate.c index 25f6cdfdc02..ea4413710a1 100644 --- a/gcc/tree-ssa-threadupdate.c +++ b/gcc/tree-ssa-threadupdate.c @@ -147,6 +147,16 @@ struct local_info bool jumps_threaded; }; +/* Jump threading statistics. */ + +struct thread_stats_d +{ + unsigned long num_threaded_edges; +}; + +struct thread_stats_d thread_stats; + + /* Remove the last statement in block BB if it is a control statement Also remove all outgoing edges except the edge which reaches DEST_BB. If DEST_BB is NULL, then remove all outgoing edges. */ @@ -589,6 +599,8 @@ redirect_edges (void **slot, void *data) to clear it will cause all kinds of unpleasant problems later. */ e->aux = NULL; + thread_stats.num_threaded_edges++; + if (rd->dup_block) { edge e2; @@ -811,6 +823,7 @@ thread_through_all_blocks (bitmap threaded_blocks) bitmap_iterator bi; rediscover_loops_after_threading = false; + memset (&thread_stats, 0, sizeof (thread_stats)); EXECUTE_IF_SET_IN_BITMAP (threaded_blocks, 0, i, bi) { @@ -820,5 +833,9 @@ thread_through_all_blocks (bitmap threaded_blocks) retval |= thread_block (bb); } + if (dump_file && (dump_flags & TDF_STATS)) + fprintf (dump_file, "\nJumps threaded: %lu\n", + thread_stats.num_threaded_edges); + return retval; } |