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Author SHA1 Message Date
Stanislav Mekhanoshin e9eedd7fa6 [AMDGPU] combine extractelement into several selects 
An extractelement with non-constant index will be lowered either to
scratch or movrel loop in most cases. This patch converts such
instruction into a set of selects if vector size is not too big.

Differential Revision: https://reviews.llvm.org/D54351

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@346800 91177308-0d34-0410-b5e6-96231b3b80d8
 2018-11-13 21:18:21 +00:00
Stanislav Mekhanoshin c0ca57801c Fixed DAGTypeLegalizer::SplitVecOp_EXTRACT_VECTOR_ELT i1 handling 
Legalizer used to request an ext load from i8 to i1 when promoting
vector element type to i8. Fixed.

Differential Revision: https://reviews.llvm.org/D54440

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@346795 91177308-0d34-0410-b5e6-96231b3b80d8
 2018-11-13 20:26:27 +00:00