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| author | Craig Topper <craig.topper@gmail.com> | 2016-07-04 22:18:01 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2016-07-04 22:18:01 +0000 |
| commit | 2a383c9273faf83f94878074f8690ad75e8c01f3 (patch) | |
| tree | 6061326ff6e5283987eef5dda4f52f008a4036db /llvm/lib/CodeGen/MachineRegisterInfo.cpp | |
| parent | c03d610cff9a473c501be37a727132bb37c1d228 (diff) | |
| download | bcm5719-llvm-2a383c9273faf83f94878074f8690ad75e8c01f3.tar.gz bcm5719-llvm-2a383c9273faf83f94878074f8690ad75e8c01f3.zip | |
[X86] Use undefined instead of setzero in shufflevector based intrinsics when the second source is unused. Rewrite immediate extractions in shuffle intrinsics to be in ((c >> x) & y) form instead of ((c & z) >> x). This way only x varies between each use instead of having to vary x and z.
llvm-svn: 274525
Diffstat (limited to 'llvm/lib/CodeGen/MachineRegisterInfo.cpp')
0 files changed, 0 insertions, 0 deletions
