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| author | Jan Hubicka <hubicka@ucw.cz> | 2016-06-25 13:56:52 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2016-06-25 11:56:52 +0000 |
| commit | 888ed1a39a46d55a7c1f2357d31eb4b59e4dc721 (patch) | |
| tree | 412e6f58c87e87e9651ee2208731ac15e90260c8 /gcc/predict.c | |
| parent | 1527dee9df41b5130f0d767f91bc89f9c990535c (diff) | |
| download | gcc-888ed1a39a46d55a7c1f2357d31eb4b59e4dc721.tar.gz | |
predict.c: Include ipa-utils.h
* predict.c: Include ipa-utils.h
(tree_bb_level_prediction): Predict recursive calls.
(tree_estimate_probability_bb): Skip inexpensive calls for call
predictor.
* predict.def (PRED_RECURSIVE_CALL): New.
* gcc.dg/predict-10.c: New test.
From-SVN: r237780
Diffstat (limited to 'gcc/predict.c')
| -rw-r--r-- | gcc/predict.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/predict.c b/gcc/predict.c index d505d9c4cc8..cc4302b1b7e 100644 --- a/gcc/predict.c +++ b/gcc/predict.c @@ -54,6 +54,7 @@ along with GCC; see the file COPYING3. If not see #include "tree-ssa-loop-niter.h" #include "tree-ssa-loop.h" #include "tree-scalar-evolution.h" +#include "ipa-utils.h" /* Enum with reasons why a predictor is ignored. */ @@ -2425,6 +2426,9 @@ tree_bb_level_predictions (void) DECL_ATTRIBUTES (decl))) predict_paths_leading_to (bb, PRED_COLD_FUNCTION, NOT_TAKEN); + if (decl && recursive_call_p (current_function_decl, decl)) + predict_paths_leading_to (bb, PRED_RECURSIVE_CALL, + NOT_TAKEN); } else if (gimple_code (stmt) == GIMPLE_PREDICT) { @@ -2539,6 +2543,7 @@ tree_estimate_probability_bb (basic_block bb) { gimple *stmt = gsi_stmt (bi); if (is_gimple_call (stmt) + && !gimple_inexpensive_call_p (as_a <gcall *> (stmt)) /* Constant and pure calls are hardly used to signalize something exceptional. */ && gimple_has_side_effects (stmt)) |