[llvm] [InstCombine] optimize powi(X,Y)/X with Ofast (PR #67236)

[via llvm-commits]

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@@ -1764,6 +1764,16 @@ Instruction *InstCombinerImpl::visitFDiv(BinaryOperator &I) {
     return replaceInstUsesWith(I, Pow);
   }
 
+  if (I.hasAllowReassoc() && I.hasNoInfs() &&
+      match(Op0, m_OneUse(m_Intrinsic<Intrinsic::powi>(m_Specific(Op1),
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goldsteinn wrote:

hmm?

https://github.com/llvm/llvm-project/pull/67236