Weiming Zhao 0bf5b5cfb8 [SimplifyLibCalls] Removed some TODOs which are already implemented. NFC.
Summary:
D14302 implements tan(atan(x)) -> x
D14045 implements pow(exp(x), y) -> exp(x*y)

Patch by Mandeep Singh Grang <mgrang@codeaurora.org>

Reviewers: majnemer, davide

Differential Revision: http://reviews.llvm.org/D14882

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253768 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-21 06:10:20 +00:00
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