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[X86][XOP] XOP's general v16i8 shifts will be used instead of v8i16 shift + mask.
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Sun, 14 May 2017 17:59:46 +0000 (17:59 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Sun, 14 May 2017 17:59:46 +0000 (17:59 +0000)
commit40a0941bb95d216ae46e4a5946ab15df62585f7d
tree80ba71bab563bdd13b133fb1897172f807d7eb10
parent7adcab9058e6773b3dab7fc0705ab6c6829d45a7
[X86][XOP] XOP's general v16i8 shifts will be used instead of v8i16 shift + mask.

Tweak cost model to match what lowering actually does.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303013 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86TargetTransformInfo.cpp
test/Analysis/CostModel/X86/vshift-ashr-cost.ll
test/Analysis/CostModel/X86/vshift-shl-cost.ll