[PATCH] D65979: [InstCombine] Simplify pow() into ldexp()

[Eli Friedman via Phabricator via llvm-commits]

efriedma added a comment.

Does this require fast math due to rounding in the sitofp conversion?  Off the top of my head, probably it doesn't matter because those cases would produce zero or infinity anyway, but it's worth explaining in the code.


Repository:
  rL LLVM

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  https://reviews.llvm.org/D65979/new/

https://reviews.llvm.org/D65979