| commit | 7e413e9c94294f17daa64ac9fda09a738e20caa5 | [log] [tgz] |
|---|---|---|
| author | Nadav Rotem <nadav.rotem@intel.com> | Fri Feb 03 13:18:25 2012 +0000 |
| committer | Nadav Rotem <nadav.rotem@intel.com> | Fri Feb 03 13:18:25 2012 +0000 |
| tree | 12f308bb55bb90e39616f35c56c49dda0597f793 | |
| parent | a02556679e685280bd59e0197d9e4aa51d40480c [diff] |
The type-legalizer often scalarizes code. One of the common patterns is extract-and-truncate. In this patch we optimize this pattern and convert the sequence into extract op of a narrow type. This allows the BUILD_VECTOR dag optimizations to construct efficient shuffle operations in many cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149692 91177308-0d34-0410-b5e6-96231b3b80d8