| commit | a334aa7a106d5ebb971862f25daaadad48d96235 | [log] [tgz] |
|---|---|---|
| author | Dan Gohman <gohman@apple.com> | Mon Jun 22 00:31:57 2009 +0000 |
| committer | Dan Gohman <gohman@apple.com> | Mon Jun 22 00:31:57 2009 +0000 |
| tree | adfcef050df75b45f550d208d488f07050221ae2 | |
| parent | 743ab498d8cc4e828c79a68a6184eb8aeb95b4a1 [diff] |
Teach ScalarEvolution how to analyze loops with multiple exit blocks, and also exit blocks with multiple conditions (combined with (bitwise) ands and ors). It's often infeasible to compute an exact trip count in such cases, but a useful upper bound can often be found. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73866 91177308-0d34-0410-b5e6-96231b3b80d8