[PATCH] Adjust the cost of vectorized SHL/SRL/SRA

[Simon Pilgrim]

Thank you for the update. I don't know enough about the LoopVectorize code to review but the TTI cost model looks correct.

Please can you add uniform non-constant tests to:

test/Analysis/CostModel/X86/testshiftashr.ll
test/Analysis/CostModel/X86/testshiftlshr.ll
test/Analysis/CostModel/X86/testshiftshl.ll


REPOSITORY
  rL LLVM

http://reviews.llvm.org/D9923

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