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[X86][SSE] LowerBUILD_VECTORAsVariablePermute - add support for scaling index vectors
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Thu, 1 Feb 2018 18:10:30 +0000 (18:10 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Thu, 1 Feb 2018 18:10:30 +0000 (18:10 +0000)
commit1fd44f70ffa799ed4afb5d8ef9746a31b6b38c43
tree2d4b0c2590cf8723dae8720dffd3aceb8b8bdbeetree | snapshot
parentbbafe884fcdfd0c94bdd9a2add6b84e680e77cd7commit | diff
[X86][SSE] LowerBUILD_VECTORAsVariablePermute - add support for scaling index vectors

This allows us to use PSHUFB for v8i16/v4i32 and VPERMD/PERMPS for v4i64/v4f64 variable shuffles.

Differential Revision: https://reviews.llvm.org/D42487

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@323987 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86ISelLowering.cpp diff | blob | history
test/CodeGen/X86/var-permute-128.ll diff | blob | history
test/CodeGen/X86/var-permute-256.ll diff | blob | history
external/llvm
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