[llvm] [LVI] Learn value ranges from ctpop/ctlz/cttz results (PR #121945)

[Yingwei Zheng via llvm-commits]

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@@ -1159,6 +1162,49 @@ getRangeViaSLT(CmpInst::Predicate Pred, APInt RHS,
   return std::nullopt;
 }
 
+static bool matchBitIntrinsic(Value *LHS, Value *Val, Intrinsic::ID &IID) {
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dtcxzyw wrote:

Unused?

https://github.com/llvm/llvm-project/pull/121945