| commit | 58b6dc032a668e637a9a9e63290652f32d372a5f | [log] [tgz] |
|---|---|---|
| author | David Majnemer <david.majnemer@gmail.com> | Sat Jun 29 23:44:53 2013 +0000 |
| committer | David Majnemer <david.majnemer@gmail.com> | Sat Jun 29 23:44:53 2013 +0000 |
| tree | 85da3febc257d052ac3db7aaade17e71b867acd6 | |
| parent | bebf6222f6b7cc871cfbc51f78cdb33d17fedb6c [diff] |
ValueTracking: Teach isKnownToBeAPowerOfTwo about (ADD X, (XOR X, Y)) where X is a power of two This allows us to simplify urem instructions involving the add+xor to turn into simpler math. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185272 91177308-0d34-0410-b5e6-96231b3b80d8