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543d622ef7
We now insert accumulator variables as necessary to eliminate tail recursion more aggressively. This is still fairly limited, but allows us to transform fib/factorial, and other functions into nice happy loops. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10332 91177308-0d34-0410-b5e6-96231b3b80d8