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invoke.texi (Optimize Options): Document parameters ipa-cp-eval-threshold...

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2014-05-21  Martin Jambor  <mjambor@suse.cz>

	* doc/invoke.texi (Optimize Options): Document parameters
	ipa-cp-eval-threshold, ipa-max-agg-items, ipa-cp-loop-hint-bonus and
	ipa-cp-array-index-hint-bonus.

From-SVN: r210718
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Martin Jambor 2014-05-21 18:13:41 +02:00 committed by Martin Jambor
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gcc/ChangeLog

@ -1,3 +1,9 @@
2014-05-21 Martin Jambor <mjambor@suse.cz>
* doc/invoke.texi (Optimize Options): Document parameters
ipa-cp-eval-threshold, ipa-max-agg-items, ipa-cp-loop-hint-bonus and
ipa-cp-array-index-hint-bonus.
2014-05-21 Mark Wielaard <mjw@redhat.com>
PR debug/16063

22
gcc/doc/invoke.texi

@ -10079,6 +10079,28 @@ parameter in order to propagate them and perform devirtualization.
@option{ipa-cp-value-list-size} is the maximum number of values and types it
stores per one formal parameter of a function.
@item ipa-cp-eval-threshold
IPA-CP calculates its own score of cloning profitability heuristics
and performs those cloning opportunities with scores that exceed
@option{ipa-cp-eval-threshold}.
@item ipa-max-agg-items
IPA-CP is also capable to propagate a number of scalar values passed
in an aggregate. @option{ipa-max-agg-items} controls the maximum
number of such values per one parameter.
@item ipa-cp-loop-hint-bonus
When IPA-CP determines that a cloning candidate would make the number
of iterations of a loop known, it adds a bonus of
@option{ipa-cp-loop-hint-bonus} bonus to the profitability score of
the candidate.
@item ipa-cp-array-index-hint-bonus
When IPA-CP determines that a cloning candidate would make the index of
an array access known, it adds a bonus of
@option{ipa-cp-array-index-hint-bonus} bonus to the profitability
score of the candidate.
@item lto-partitions
Specify desired number of partitions produced during WHOPR compilation.
The number of partitions should exceed the number of CPUs used for compilation.