r263466 - in /trunk/gcc: ChangeLog builtin-type...

[marxin@gcc.gnu.org]

Author: marxin
Date: Fri Aug 10 09:43:06 2018
New Revision: 263466

URL: https://gcc.gnu.org/viewcvs?rev=263466&root=gcc&view=rev
Log:
Introduce __builtin_expect_with_probability (PR target/83610).

2018-08-10  Martin Liska  <mliska@suse.cz>

        PR target/83610
	* builtin-types.def (BT_FN_LONG_LONG_LONG_DOUBLE): Add new
        function type.
	* builtins.c (expand_builtin_expect_with_probability):
        New function.
	(expand_builtin_expect_with_probability): New function.
	(build_builtin_expect_predicate): Add new argumnet probability
        for BUILT_IN_EXPECT_WITH_PROBABILITY.
	(fold_builtin_expect):
	(fold_builtin_2):
	(fold_builtin_3):
	* builtins.def (BUILT_IN_EXPECT_WITH_PROBABILITY):
	* builtins.h (fold_builtin_expect): Set new argument.
	* doc/extend.texi: Document __builtin_expect_with_probability.
	* doc/invoke.texi: Likewise.
	* gimple-fold.c (gimple_fold_call): Pass new argument.
	* ipa-fnsummary.c (find_foldable_builtin_expect): Handle
        also BUILT_IN_EXPECT_WITH_PROBABILITY.
	* predict.c (get_predictor_value): New function.
	(expr_expected_value): Add new argument probability. Assume
        that predictor and probability are always non-null.
	(expr_expected_value_1): Likewise.  For __builtin_expect and
        __builtin_expect_with_probability set probability.  Handle
        combination in binary expressions.
	(tree_predict_by_opcode): Simplify code by simply calling
        get_predictor_value.
	(pass_strip_predict_hints::execute): Add handling of
        BUILT_IN_EXPECT_WITH_PROBABILITY.
	* predict.def (PRED_BUILTIN_EXPECT_WITH_PROBABILITY): Add
        new predictor.
	* tree.h (DECL_BUILT_IN_P): New function.
2018-08-10  Martin Liska  <mliska@suse.cz>

        PR target/83610
	* gcc.dg/predict-17.c: New test.
	* gcc.dg/predict-18.c: New test.
	* gcc.dg/predict-19.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/predict-17.c
    trunk/gcc/testsuite/gcc.dg/predict-18.c
    trunk/gcc/testsuite/gcc.dg/predict-19.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtin-types.def
    trunk/gcc/builtins.c
    trunk/gcc/builtins.def
    trunk/gcc/builtins.h
    trunk/gcc/doc/extend.texi
    trunk/gcc/doc/invoke.texi
    trunk/gcc/gimple-fold.c
    trunk/gcc/ipa-fnsummary.c
    trunk/gcc/predict.c
    trunk/gcc/predict.def
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree.h