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[CostModel][X86] Update SSE41/AVX1 vXi32 SHL costs
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Sat, 7 Jan 2017 22:27:43 +0000 (22:27 +0000)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Sat, 7 Jan 2017 22:27:43 +0000 (22:27 +0000)
commit4f2c5010fd8bd4f4f64c24cf454b7c72084b9bbc
treeeb600a2e7e848b91c82425bf3d726900624169a5
parent8c5dd44736cae5c24518d5e2e2b73b5c256f6aca
[CostModel][X86] Update SSE41/AVX1 vXi32 SHL costs

SSE41 provides pmulld which allows the simpler pslld/paddd/cvttps2dq/pmulld pattern than SSE2's use of pmuludq.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291372 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86TargetTransformInfo.cpp
test/Analysis/CostModel/X86/vshift-shl-cost.ll