[PATCH] D107713: [NFC] Fix the formula for reciprocal calculation.

[LuoYuanke via Phabricator via llvm-commits]

LuoYuanke added inline comments.


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Comment at: llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:22880
 /// For the reciprocal, we need to find the zero of the function:
-///   F(X) = A X - 1 [which has a zero at X = 1/A]
 ///     =>
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The original formula (F(X) = A X - 1) is mis-leading. It doesn't fit "X_{i+1} = X_i - F(X_i)/F'(X_i)"


Repository:
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CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D107713/new/

https://reviews.llvm.org/D107713