diff options
Diffstat (limited to 'gcc/tree-ssa-dom.c')
| -rw-r--r-- | gcc/tree-ssa-dom.c | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c index 909bfeba682..255f24b98e7 100644 --- a/gcc/tree-ssa-dom.c +++ b/gcc/tree-ssa-dom.c @@ -319,6 +319,23 @@ tree_ssa_dominator_optimize (void) such edges from the CFG as needed. */ if (!bitmap_empty_p (need_eh_cleanup)) { + unsigned i; + bitmap_iterator bi; + + /* Jump threading may have created forwarder blocks from blocks + needing EH cleanup; the new successor of these blocks, which + has inherited from the original block, needs the cleanup. */ + EXECUTE_IF_SET_IN_BITMAP (need_eh_cleanup, 0, i, bi) + { + basic_block bb = BASIC_BLOCK (i); + if (single_succ_p (bb) == 1 + && (single_succ_edge (bb)->flags & EDGE_EH) == 0) + { + bitmap_clear_bit (need_eh_cleanup, i); + bitmap_set_bit (need_eh_cleanup, single_succ (bb)->index); + } + } + tree_purge_all_dead_eh_edges (need_eh_cleanup); bitmap_zero (need_eh_cleanup); } @@ -340,6 +357,13 @@ tree_ssa_dominator_optimize (void) SSA_NAME_VALUE (name) = NULL; } + statistics_counter_event (cfun, "Redundant expressions eliminated", + opt_stats.num_re); + statistics_counter_event (cfun, "Constants propagated", + opt_stats.num_const_prop); + statistics_counter_event (cfun, "Copies propagated", + opt_stats.num_copy_prop); + /* Debugging dumps. */ if (dump_file && (dump_flags & TDF_STATS)) dump_dominator_optimization_stats (dump_file); @@ -851,25 +875,11 @@ record_equivalences_from_incoming_edge (basic_block bb) void dump_dominator_optimization_stats (FILE *file) { - long n_exprs; - fprintf (file, "Total number of statements: %6ld\n\n", opt_stats.num_stmts); fprintf (file, "Exprs considered for dominator optimizations: %6ld\n", opt_stats.num_exprs_considered); - n_exprs = opt_stats.num_exprs_considered; - if (n_exprs == 0) - n_exprs = 1; - - fprintf (file, " Redundant expressions eliminated: %6ld (%.0f%%)\n", - opt_stats.num_re, PERCENT (opt_stats.num_re, - n_exprs)); - fprintf (file, " Constants propagated: %6ld\n", - opt_stats.num_const_prop); - fprintf (file, " Copies propagated: %6ld\n", - opt_stats.num_copy_prop); - fprintf (file, "\nHash table statistics:\n"); fprintf (file, " avail_exprs: "); |