| commit | 0cb1621554afa8612836c4edfc890fe337320008 | [log] [tgz] |
|---|---|---|
| author | Sanjay Patel <spatel@rotateright.com> | Wed Jan 16 14:15:18 2019 +0000 |
| committer | Sanjay Patel <spatel@rotateright.com> | Wed Jan 16 14:15:18 2019 +0000 |
| tree | 413c3bbbd3b33cb5440bc8e7b024737a221d3f98 | |
| parent | 5d37f6c75626db314b8dbf06231c8ffb502189fb [diff] |
[x86] lower shuffle of extracts to AVX2 vperm instructions I was trying to prevent shuffle regressions while matching more horizontal ops and ended up here: shuf (extract X, 0), (extract X, 4), Mask --> extract (shuf X, undef, Mask'), 0 The affected tests were added for: https://bugs.llvm.org/show_bug.cgi?id=34380 This patch won't change the examples in the bug report itself, but we should be able to extend this to catch more types. Differential Revision: https://reviews.llvm.org/D56756 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351346 91177308-0d34-0410-b5e6-96231b3b80d8