Benjamin Kramer 998d3cca29 Switch BasicAliasAnalysis' cache to SmallDenseMap.
It relies on clear() being fast and the cache rarely has more than 1 or 2
elements, so give it an inline capacity and always shrink it back down in case
it grows. DenseMap will grow to 64 buckets which makes clear() a lot slower.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163215 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-05 16:49:37 +00:00
..
2012-07-19 21:43:55 +00:00
2012-09-05 09:00:18 +00:00