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Introduce filtering for edge_predictions. 

* predict.c (filter_predictions): New function.
	(remove_predictions_associated_with_edge): Use the filter
	function.
	(equal_edge_p): New function.

From-SVN: r237253
This commit is contained in:
Martin Liska 2016-06-09 13:26:32 +02:00 committed by Martin Liska
parent 7d82e8e465
commit 28cd6814b5
2 changed files with 46 additions and 18 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2016-06-09 Martin Liska <mliska@suse.cz>
* predict.c (filter_predictions): New function.
(remove_predictions_associated_with_edge): Use the filter
function.
(equal_edge_p): New function.
2016-06-09 Stefan Bruens <stefan.bruens@rwth-aachen.de>
* doc/invoke.texi (ARM Options): Use lexicographical ordering.

57
gcc/predict.c
View File

@ -609,6 +609,44 @@ gimple_predict_edge (edge e, enum br_predictor predictor, int probability)
}
}
/* Filter edge predictions PREDS by a function FILTER. DATA are passed
to the filter function. */
void
filter_predictions (edge_prediction **preds,
bool (*filter) (edge_prediction *, void *), void *data)
{
if (!bb_predictions)
return;
if (preds)
{
struct edge_prediction **prediction = preds;
struct edge_prediction *next;
while (*prediction)
{
if ((*filter) (*prediction, data))
prediction = &((*prediction)->ep_next);
else
{
next = (*prediction)->ep_next;
free (*prediction);
*prediction = next;
}
}
}
}
/* Filter function predicate that returns true for a edge predicate P
if its edge is equal to DATA. */
bool
equal_edge_p (edge_prediction *p, void *data)
{
return p->ep_edge == (edge)data;
}
/* Remove all predictions on given basic block that are attached
to edge E. */
void
@ -618,24 +656,7 @@ remove_predictions_associated_with_edge (edge e)
return;
edge_prediction **preds = bb_predictions->get (e->src);
if (preds)
{
struct edge_prediction **prediction = preds;
struct edge_prediction *next;
while (*prediction)
{
if ((*prediction)->ep_edge == e)
{
next = (*prediction)->ep_next;
free (*prediction);
*prediction = next;
}
else
prediction = &((*prediction)->ep_next);
}
}
filter_predictions (preds, equal_edge_p, e);
}
/* Clears the list of predictions stored for BB. */