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| author | Chandler Carruth <chandlerc@gmail.com> | 2014-07-10 09:57:36 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2014-07-10 09:57:36 +0000 |
| commit | 853fa0ac8d20df2097a1c0b2efa88440eaca5a81 (patch) | |
| tree | c9646408a12e9d4b857fdf0c6714b390798f4b3d /llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp | |
| parent | 91c2a99740ae33b0c21f5cb3362499a44b9dd54e (diff) | |
| download | bcm5719-llvm-853fa0ac8d20df2097a1c0b2efa88440eaca5a81.tar.gz bcm5719-llvm-853fa0ac8d20df2097a1c0b2efa88440eaca5a81.zip | |
[x86] Expand the target DAG combining for PSHUFD nodes to be able to
combine into half-shuffles through unpack instructions that expand the
half to a whole vector without messing with the dword lanes.
This fixes some redundant instructions in splat-like lowerings for
v16i8, which are now getting to be *really* nice.
llvm-svn: 212695
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp')
0 files changed, 0 insertions, 0 deletions
