[llvm] [WebAssembly] Add RefTypeMem2Local pass (PR #81965)

[via llvm-commits]

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@@ -0,0 +1,91 @@
+//=== WebAssemblyRefTypeMem2Local.cpp - WebAssembly RefType Mem2Local -----===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// Assign reference type allocas to local addrspace (addrspace(1)) so that
+/// their loads and stores can be lowered to local.gets/local.sets.
+///
+//===----------------------------------------------------------------------===//
+
+#include "Utils/WasmAddressSpaces.h"
+#include "Utils/WebAssemblyTypeUtilities.h"
+#include "WebAssembly.h"
+#include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/InstVisitor.h"
+#include "llvm/IR/ValueHandle.h"
+#include "llvm/Pass.h"
+using namespace llvm;
+
+#define DEBUG_TYPE "wasm-ref-type-mem2local"
+
+namespace {
+class WebAssemblyRefTypeMem2Local final
+    : public FunctionPass,
+      public InstVisitor<WebAssemblyRefTypeMem2Local> {
+  StringRef getPassName() const override {
+    return "WebAssembly Refernce Types Memory to Local";
----------------
xortoast wrote:

```suggestion
    return "WebAssembly Reference Types Memory to Local";
```

https://github.com/llvm/llvm-project/pull/81965