| commit | 42e4bdf2577946380ce1529d5716e48b33d4186d | [log] [tgz] |
|---|---|---|
| author | Chris Lattner <sabre@nondot.org> | Sun Aug 05 07:32:14 2007 +0000 |
| committer | Chris Lattner <sabre@nondot.org> | Sun Aug 05 07:32:14 2007 +0000 |
| tree | 3a77344832b30c3317ca27bc483ca7690d4e7dc8 | |
| parent | a31965301da89a7d0c829bded72c6b0da0303c54 [diff] |
When clearing a SmallPtrSet, if the set had a huge capacity, but the contents of the set were small, deallocate and shrink the set. This avoids having us to memset as much data, significantly speeding up some pathological cases. For example, this speeds up the verifier from 0.3899s to 0.0763 (5.1x) on the testcase from PR1432 in a release build. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40837 91177308-0d34-0410-b5e6-96231b3b80d8