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r249450 - in /trunk/gcc: ChangeLog gimple-low.c...
- From: marxin at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Wed, 21 Jun 2017 12:51:46 -0000
- Subject: r249450 - in /trunk/gcc: ChangeLog gimple-low.c...
Author: marxin
Date: Wed Jun 21 12:51:46 2017
New Revision: 249450
URL: https://gcc.gnu.org/viewcvs?rev=249450&root=gcc&view=rev
Log:
Make early return predictor more precise.
2017-06-21 Martin Liska <mliska@suse.cz>
PR tree-optimization/79489
* gimplify.c (maybe_add_early_return_predict_stmt): New
function.
(gimplify_return_expr): Call the function.
* predict.c (tree_estimate_probability_bb): Remove handling
of early return.
* predict.def: Update comment about early return predictor.
* gimple-predict.h (is_gimple_predict): New function.
* predict.def: Change default value of early return to 66.
* tree-tailcall.c (find_tail_calls): Skip GIMPLE_PREDICT
statements.
* passes.def: Put pass_strip_predict_hints to the beginning of
IPA passes.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/gimple-low.c
trunk/gcc/gimple-predict.h
trunk/gcc/gimplify.c
trunk/gcc/passes.def
trunk/gcc/predict.c
trunk/gcc/predict.def
trunk/gcc/tree-tailcall.c