[llvm] [SandboxIR] Add utility function to find the base Value for Mem instructions (PR #112030)

[via llvm-commits]

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@@ -49,6 +49,16 @@ class Utils {
     return const_cast<Instruction *>(I);
   }
 
+  /// \Returns the base Value for load or store instruction \p LSI.
+  template <typename LoadOrStoreT>
+  static Value *getMemInstructionBase(const LoadOrStoreT *LSI) {
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vporpo wrote:

Why not use LLVM's name `getUnderlyingObject()` ? getMemInstructionBase() is a better name, but since we are just wrapping LLVM's getUnderlyingObject() we should probably stick to the same name.

https://github.com/llvm/llvm-project/pull/112030