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d0bfb83efb
intermediate TTI implementation template and instead query up to the derived class for both the TargetMachine and the TargetLowering. Most of the derived types had a TLI cached already and there is no need to store a less precisely typed target machine pointer. This will in turn make it much cleaner to look up the TLI via a per-function subtarget instead of the generic subtarget, and it will pave the way toward pulling the subtarget used for unroll preferences into the same form once we are *always* using the function to look up the correct subtarget. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227737 91177308-0d34-0410-b5e6-96231b3b80d8