[llvm] [ValueTracking] Handle range attributes (PR #85143)

[Yingwei Zheng via llvm-commits]

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@@ -2154,6 +2155,10 @@ class CallBase : public Instruction {
   /// parameter.
   FPClassTest getParamNoFPClass(unsigned i) const;
 
+  /// If this return value has a range attribute, return the value range of the
+  /// argument. Otherwise, std::nullopt is returned.
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dtcxzyw wrote:

typo

https://github.com/llvm/llvm-project/pull/85143