| commit | ec0b9c874526dc0ddf5556f9d88e8868df7ef1a1 | [log] [tgz] |
|---|---|---|
| author | James Molloy <james.molloy@arm.com> | Mon May 09 14:32:30 2016 +0000 |
| committer | James Molloy <james.molloy@arm.com> | Mon May 09 14:32:30 2016 +0000 |
| tree | a30bfb7dffd43ec71fe734e9605357079adfe15f | |
| parent | 43d2886cca0f683724637679e0fc9bc50511dce3 [diff] |
[VectorUtils] Query number of sign bits to allow more truncations When deciding if a vector calculation can be done in a smaller bitwidth, use sign bit information from ValueTracking to add more information and allow more truncations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@268921 91177308-0d34-0410-b5e6-96231b3b80d8