diff options
Diffstat (limited to 'gcc/predict.c')
| -rw-r--r-- | gcc/predict.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/gcc/predict.c b/gcc/predict.c index cedb3d5..a20b352 100644 --- a/gcc/predict.c +++ b/gcc/predict.c @@ -1293,10 +1293,11 @@ tree_bb_level_predictions (void) { block_stmt_iterator bsi = bsi_last (bb); - for (bsi = bsi_start (bb); !bsi_end_p (bsi); bsi_next (&bsi)) + for (bsi = bsi_start (bb); !bsi_end_p (bsi);) { tree stmt = bsi_stmt (bsi); tree decl; + bool next = false; switch (TREE_CODE (stmt)) { @@ -1319,9 +1320,17 @@ call_expr:; predict_paths_leading_to (bb, PRED_COLD_FUNCTION, NOT_TAKEN); break; + case PREDICT_EXPR: + predict_paths_leading_to (bb, PREDICT_EXPR_PREDICTOR (stmt), + PREDICT_EXPR_OUTCOME (stmt)); + bsi_remove (&bsi, true); + next = true; + break; default: break; } + if (!next) + bsi_next (&bsi); } } } @@ -1915,6 +1924,21 @@ gate_estimate_probability (void) return flag_guess_branch_prob; } +/* Build PREDICT_EXPR. */ +tree +build_predict_expr (enum br_predictor predictor, enum prediction taken) +{ + tree t = build1 (PREDICT_EXPR, NULL_TREE, build_int_cst (NULL, predictor)); + PREDICT_EXPR_OUTCOME (t) = taken; + return t; +} + +const char * +predictor_name (enum br_predictor predictor) +{ + return predictor_info[predictor].name; +} + struct tree_opt_pass pass_profile = { "profile", /* name */ |