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EFFICIENCY: If a new dependency overlaps with an old one, we don't have to recompute the closure.

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This commit is contained in:
Cas Cremers 2010-11-10 23:58:59 +01:00
parent 6cd8007ab0
commit 01eb5854cf
1 changed files with 23 additions and 19 deletions
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6
src/depend.c
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@ -74,7 +74,7 @@ extern Role I_M; //!< special role; precedes all other events always
* ---------------------------------------------------------------
*/
Depeventgraph currentdepgraph;
Depeventgraph currentdepgraph = NULL;
/*
* Default code
@ -497,6 +497,9 @@ dependPushEvent (const int r1, const int e1, const int r2, const int e2)
{
// change: make new graph copy of the old one
dependPushGeneric (dependCopy (currentdepgraph));
// really new?
if (!isDependEvent (r1, e1, r2, e2))
{
// add new binding
setDependEvent (r1, e1, r2, e2);
// recompute closure
@ -519,6 +522,7 @@ dependPushEvent (const int r1, const int e1, const int r2, const int e2)
}
#endif
}
}
return true;
}
}