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b594a84df5
the very high overhead of the complex inline cost analysis when all it wants to do is detect three patterns which must not be inlined. Comment the code, clean it up, and leave some hints about possible performance improvements if this ever shows up on a profile. Moving this off of the (now more expensive) inline cost analysis is particularly important because we have to run this inliner even at -O0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153814 91177308-0d34-0410-b5e6-96231b3b80d8
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