[llvm] [SandboxIR] Implement AllocaInst (PR #102027)

[Arthur Eubanks via llvm-commits]

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@@ -1393,6 +1396,108 @@ class GetElementPtrInst final : public Instruction {
 #endif
 };
 
+class AllocaInst final : public UnaryInstruction {
+  Use getOperandUseInternal(unsigned OpIdx, bool Verify) const final {
+    return getOperandUseDefault(OpIdx, Verify);
+  }
+  SmallVector<llvm::Instruction *, 1> getLLVMInstrs() const final {
+    return {cast<llvm::Instruction>(Val)};
+  }
+
+public:
+  AllocaInst(llvm::AllocaInst *AI, Context &Ctx)
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aeubanks wrote:

I thought this was supposed to be private

https://github.com/llvm/llvm-project/pull/102027