[X86][SSE] combineVectorTruncation - simplify PSHUFB-is-better logic. NFCI.
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Sun, 6 Jun 2021 18:53:49 +0000 (19:53 +0100)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Sun, 6 Jun 2021 19:04:14 +0000 (20:04 +0100)
commit4879c8f3b06eebb498c28c3d2aa6bc0f3f9b961e
tree8b2de05db75eef0151e69e81ddcaad04cda3f8f8
parent0a9d0799316c7a601a0b20a123bd99922ac6455b
[X86][SSE] combineVectorTruncation - simplify PSHUFB-is-better logic. NFCI.

OutSVT is guaranteed to be i8/i16 and we accept any InSVT that isn't i64
llvm/lib/Target/X86/X86ISelLowering.cpp