| commit | 018921002e9ffd421da2a2c7a1597ec13da9d200 | [log] [tgz] |
|---|---|---|
| author | Nadav Rotem <nadav.rotem@intel.com> | Sat Jul 14 21:30:27 2012 +0000 |
| committer | Nadav Rotem <nadav.rotem@intel.com> | Sat Jul 14 21:30:27 2012 +0000 |
| tree | fbb55a6657ad1d731f9fb6e2f3c6b3e1c060c62a | |
| parent | 934a1c02312af4a45693815513c3cfb110ff67db [diff] |
Add a dagcombine optimization to convert concat_vectors of undefs into a single undef. The unoptimized concat_vectors isd prevented the canonicalization of the vector_shuffle node. llvm-svn: 160221