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Speed up simple insertions into an unbranched tree by not creating an iterator.

llvm-svn: 120232
This commit is contained in:
Jakob Stoklund Olesen 2010-11-28 06:14:33 +00:00
parent 9342b862e6
commit 5c6e97ccae

View File

@ -1128,7 +1128,12 @@ public:
/// It is assumed that no key in the interval is mapped to another value, but
/// overlapping intervals already mapped to y will be coalesced.
void insert(KeyT a, KeyT b, ValT y) {
find(a).insert(a, b, y);
if (branched() || rootSize == RootLeaf::Capacity)
return find(a).insert(a, b, y);
// Easy insert into root leaf.
unsigned p = rootLeaf().findFrom(0, rootSize, a);
rootSize = rootLeaf().insertFrom(p, rootSize, a, b, y).second;
}
/// clear - Remove all entries.