| commit | fd46fc33228c0a4749c1a61d8e736b98e0a6d034 | [log] [tgz] |
|---|---|---|
| author | Simon Pilgrim <llvm-dev@redking.me.uk> | Sat Jun 11 15:44:13 2016 +0000 |
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | Sat Jun 11 15:44:13 2016 +0000 |
| tree | 23bc581ebfe52a688f522d4d4074bbbc8a4e4e8b | |
| parent | 87cd6e6baadd63ed4f3f31de74568114bf486c1e [diff] |
[X86][SSSE3] Added PSHUFB LUT implementation of BITREVERSE PSHUFB can speed up BITREVERSE of byte vectors by performing LUT on the low/high nibbles separately and ORing the results. Wider integer vector types are already BSWAP'd beforehand so also make use of this approach. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272477 91177308-0d34-0410-b5e6-96231b3b80d8