[llvm] [SandboxIR] Implement ReturnInst (PR #99784)

[Sriraman Tallam via llvm-commits]

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@@ -668,6 +710,11 @@ Value *Context::getOrCreateValueInternal(llvm::Value *LLVMV, llvm::User *U) {
     It->second = std::unique_ptr<StoreInst>(new StoreInst(LLVMSt, *this));
     return It->second.get();
   }
+  case llvm::Instruction::Ret: {
+    auto *LLVMRet = cast<llvm::ReturnInst>(LLVMV);
+    It->second = std::unique_ptr<ReturnInst>(new ReturnInst(LLVMRet, *this));
+    return It->second.get();
+  }
   default:
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tmsri wrote:

I meant creating a polymorphic lambda here, that didn't come out like I had typed.

https://github.com/llvm/llvm-project/pull/99784