Matthias Braun acd531c953 SmallPtrSet: Avoid initializing Array in the small case. ...

This patch avoids the initial memset at the cost of making iterators
slightly more complex. This should be beneficial as most SmallPtrSets
hold no or only a few elements, while iterating over them is less
common.

Differential Revision: http://reviews.llvm.org/D16672

llvm-svn: 260913

2016-02-15 21:38:42 +00:00

9.9 KiB

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