[clang] [ORC] Implement basic reoptimization. (PR #67050)

[via cfe-commits]

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@@ -0,0 +1,28 @@
+//===---- RedirectionManager.cpp - Redirection manager interface in Orc ---===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ExecutionEngine/Orc/RedirectionManager.h"
+
+#define DEBUG_TYPE "orc"
+
+using namespace llvm;
+using namespace llvm::orc;
+
+void RedirectionManager::anchor() {}
+
+Error RedirectableSymbolManager::createRedirectableSymbols(
+    ResourceTrackerSP RT, const SymbolMap &InitialDests) {
+  auto &JD = RT->getJITDylib();
+
+  if (auto Err = JD.define(std::make_unique<RedirectableMaterializationUnit>(
+                               *this, InitialDests),
+                           RT))
+    return Err;
+
+  return Error::success();
----------------
lhames wrote:

This could just be:
```c++
  return JD.define(std::make_unique<RedirectableMaterializationUnit>(*this, InitialDests), RT);
```

https://github.com/llvm/llvm-project/pull/67050