[PATCH] D26518: [AArch64] Compute the Newton series for reciprocals natively

[Evandro Menezes via llvm-commits]

evandro created this revision.
evandro added reviewers: spatel, t.p.northover, rengolin.
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Implement the Newton series for square root, its reciprocal and reciprocal natively using the helper instructions in AArch64.


Repository:
  rL LLVM

https://reviews.llvm.org/D26518

Files:
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.h
  llvm/lib/Target/AArch64/AArch64InstrInfo.td
  llvm/test/CodeGen/AArch64/recp-fastmath.ll
  llvm/test/CodeGen/AArch64/sqrt-fastmath.ll

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