| commit | 61b5e3c6a991e7ddaf5867bd3043e8c45f801054 | [log] [tgz] |
|---|---|---|
| author | Sanjay Patel <spatel@rotateright.com> | Wed Apr 03 22:15:29 2019 +0000 |
| committer | Sanjay Patel <spatel@rotateright.com> | Wed Apr 03 22:15:29 2019 +0000 |
| tree | 425dd5d12ac5e3b497936692d24d63a2b3bfaa26 | |
| parent | e51c12430ffe26c5889f41507e11409bd4f58de2 [diff] |
[x86] eliminate movddup of horizontal op This pattern would show up as a regression if we more aggressively convert vector FP ops to scalar ops. There's still a missed optimization for the v4f64 legal case (AVX) because we create that h-op with an undef operand. We should probably just duplicate the operands for that pattern to avoid trouble. llvm-svn: 357642