| commit | 0753c06d9cfd7cbb6af1ed13af073cc274522862 | [log] [tgz] |
|---|---|---|
| author | Sanjay Patel <spatel@rotateright.com> | Thu Jul 21 00:24:18 2016 +0000 |
| committer | Sanjay Patel <spatel@rotateright.com> | Thu Jul 21 00:24:18 2016 +0000 |
| tree | d1979e133c60dda0c86264b1643e6625952f00b8 | |
| parent | 99bd2de6194551d429751afc77030fdaed4e4dae [diff] |
[InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476) The benefits of this change include: 1. Remove DeMorgan-matching code that was added specifically to work-around the missing transform in http://reviews.llvm.org/rL248634. 2. Makes the DeMorgan transform work for vectors too. 3. Fix PR28476: https://llvm.org/bugs/show_bug.cgi?id=28476 Extending this transform to other casts and other associative operators may be useful too. See https://reviews.llvm.org/D22421 for a prerequisite for doing that though. Differential Revision: https://reviews.llvm.org/D22271 llvm-svn: 276221