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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2020-01-05 18:50:44 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2020-01-05 18:50:44 +0000 |
| commit | e3bd0118903ccb545ca5cb2641646eb66ae8180e (patch) | |
| tree | e6d09173f3c1e8bc195438333db74efacbd90682 /llvm/lib/Support/StringExtras.cpp | |
| parent | 6a6e6f04ec2cd2f4f07ec4943036c5c2d47ce0c7 (diff) | |
| download | llvm-e3bd0118903ccb545ca5cb2641646eb66ae8180e.zip llvm-e3bd0118903ccb545ca5cb2641646eb66ae8180e.tar.gz llvm-e3bd0118903ccb545ca5cb2641646eb66ae8180e.tar.bz2 | |
[X86][SSE] Combine combineLogicBlendIntoConditionalNegate for VSELECT nodes (PR43660)
Attempt to use combineLogicBlendIntoConditionalNegate for (select M, (sub 0, X), X) -> (sub (xor X, M), M)
We limit this to cases that can't easily replace the VSELECT with a shuffle (non-constant masks) or where a BLENDV is likely to occur (which tends to result in slower codegen).
Diffstat (limited to 'llvm/lib/Support/StringExtras.cpp')
0 files changed, 0 insertions, 0 deletions