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-rw-r--r--include/llvm/ADT/IntervalMap.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/llvm/ADT/IntervalMap.h b/include/llvm/ADT/IntervalMap.h
index 0451a76..2758cbc 100644
--- a/include/llvm/ADT/IntervalMap.h
+++ b/include/llvm/ADT/IntervalMap.h
@@ -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.