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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-10-23 11:33:38 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-10-23 11:33:38 +0000 |
| commit | f85ee9f8b40a0c1ac59be572e80527eb14e7a049 (patch) | |
| tree | 5601c81a75c7cee5a24660430ec83c400457ef33 /llvm/lib/Transforms/Vectorize/LoopVectorize.cpp | |
| parent | c29dbbdb1001063d79770eba4076a238eff1f1cd (diff) | |
| download | bcm5719-llvm-f85ee9f8b40a0c1ac59be572e80527eb14e7a049.tar.gz bcm5719-llvm-f85ee9f8b40a0c1ac59be572e80527eb14e7a049.zip | |
[X86][SSE] Update raw mask shuffle decoders to handle UNDEF mask elts
Matches the approach taken in the constant pool shuffle decoders, and uses an UndefElts mask instead of uint64_t(-1) raw mask values, which doesn't work safely for i32/i64 shuffle mask sizes (as the -1 value is legal).
This allows us to remove the constant pool shuffle decoders from most of the getTargetShuffleMask variable shuffle cases (X86ISD::VPERMV3 will be handled in a future commit).
llvm-svn: 345018
Diffstat (limited to 'llvm/lib/Transforms/Vectorize/LoopVectorize.cpp')
0 files changed, 0 insertions, 0 deletions
