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| author | Eric Botcazou <ebotcazou@adacore.com> | 2019-08-02 10:09:04 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2019-08-02 10:09:04 +0000 |
| commit | cc692b4c402bba7dd92f681e3e095b5c6e5f27dd (patch) | |
| tree | 9d16a6847a5a9ac6689cab729eeb4647fcf40954 /gcc/params.def | |
| parent | d603877768c5a4ed26481afc0aff99e87a0a8d62 (diff) | |
| download | gcc-cc692b4c402bba7dd92f681e3e095b5c6e5f27dd.zip gcc-cc692b4c402bba7dd92f681e3e095b5c6e5f27dd.tar.gz gcc-cc692b4c402bba7dd92f681e3e095b5c6e5f27dd.tar.bz2 | |
invoke.texi (hot-bb-count-fraction): Rework description.
* doc/invoke.texi (hot-bb-count-fraction): Rework description.
(hot-bb-count-ws-permille): Likewise.
(hot-bb-frequency-fraction): Likewise.
(unlikely-bb-count-fraction): Likewise.
* params.def (hot-bb-count-fraction): Rework description.
(hot-bb-count-ws-permille): Likewise.
(hot-bb-frequency-fraction): Likewise.
(unlikely-bb-count-fraction): Likewise. Remove min and max values.
* predict.c (get_hot_bb_threshold): Deal with 0 HOT_BB_COUNT_FRACTION.
From-SVN: r274006
Diffstat (limited to 'gcc/params.def')
| -rw-r--r-- | gcc/params.def | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/gcc/params.def b/gcc/params.def index 7d0dcae..13001a7 100644 --- a/gcc/params.def +++ b/gcc/params.def @@ -427,23 +427,31 @@ DEFPARAM(PARAM_SMS_LOOP_AVERAGE_COUNT_THRESHOLD, DEFPARAM(HOT_BB_COUNT_FRACTION, "hot-bb-count-fraction", - "Select fraction of the maximal count of repetitions of basic block in program given basic " - "block needs to have to be considered hot (used in non-LTO mode).", + "The denominator n of fraction 1/n of the maximal execution count of " + "a basic block in the entire program that a basic block needs to at " + "least have in order to be considered hot (used in non-LTO mode).", 10000, 0, 0) + DEFPARAM(HOT_BB_COUNT_WS_PERMILLE, "hot-bb-count-ws-permille", - "A basic block profile count is considered hot if it contributes to " - "the given permillage of the entire profiled execution (used in LTO mode).", + "The number of most executed permilles of the profiled execution of " + "the entire program to which the execution count of a basic block " + "must be part of in order to be considered hot (used in LTO mode).", 990, 0, 1000) + DEFPARAM(HOT_BB_FREQUENCY_FRACTION, "hot-bb-frequency-fraction", - "Select fraction of the maximal frequency of executions of basic block in function given basic block needs to have to be considered hot.", + "The denominator n of fraction 1/n of the execution frequency of the " + "entry block of a function that a basic block of this function needs " + "to at least have in order to be considered hot.", 1000, 0, 0) DEFPARAM(UNLIKELY_BB_COUNT_FRACTION, "unlikely-bb-count-fraction", - "The minimum fraction of profile runs a given basic block execution count must be not to be considered unlikely.", - 20, 1, 10000) + "The denominator n of fraction 1/n of the number of profiled runs of " + "the entire program below which the execution count of a basic block " + "must be in order for the basic block to be considered unlikely.", + 20, 0, 0) DEFPARAM (PARAM_ALIGN_THRESHOLD, "align-threshold", |