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c7e0a8178a
A value of 5 means if we have a split or spill option that has a really low cost (1 << 14 is the entry frequency), we will choose to spill or split the really cold path before using a callee-saved register. This gives us the performance benefit on SPECInt2k and is also conservative. rdar://16162005 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205248 91177308-0d34-0410-b5e6-96231b3b80d8
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