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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2020-03-09 17:35:37 +0000 |
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| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2020-03-09 18:29:28 +0000 |
| commit | 4b130b883d4ab6526ef464d54afd710d95fafa4f (patch) | |
| tree | 99376e574f78c8c110718c3a89fd01a054e1fae1 /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | 3dcc0db15e372df2e6c61873dc2d8a2f780cd27e (diff) | |
| download | llvm-4b130b883d4ab6526ef464d54afd710d95fafa4f.zip llvm-4b130b883d4ab6526ef464d54afd710d95fafa4f.tar.gz llvm-4b130b883d4ab6526ef464d54afd710d95fafa4f.tar.bz2 | |
[X86][SSE] SimplifyDemandedVectorEltsForTargetNode - reduce vector width of X86ISD::BLENDI
If we don't need the upper subvector elements of the BLENDI node then use a smaller vector size.
This causes a couple of minor regressions in insertelement-ones.ll which are more examples of PR26018; given how cheap allones generation is I don't consider that a showstopper, just an annoyance (and there's plenty of other poor codegen cases in that file).
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
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