[PATCH] D41940: [InstSimplify] Missed optimization in math expression: log10(pow(10.0, x)) == x, log2(pow(2.0, x)) == x

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

Seems ok.



================
Comment at: lib/Analysis/InstructionSimplify.cpp:4944
+        (match(Op0, m_Intrinsic<Intrinsic::exp2>(m_Value(X))) ||
+         match(Op0, m_Intrinsic<Intrinsic::pow>(m_SpecificFP(2.0),
+                                                m_Value(X))))) return X;
----------------
Hmm, do we want to canonicalize `Intrinsic::pow(2.0, x)` to `exp2(x)` instead ?


Repository:
  rL LLVM

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  https://reviews.llvm.org/D41940/new/

https://reviews.llvm.org/D41940