llvm-project/llvm/unittests/Passes/TestPlugin.cpp

//===- unittests/Passes/Plugins/Plugin.cpp --------------------------------===//
//
// 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/Passes/PassBuilder.h"
#include "llvm/Passes/PassPlugin.h"

#include "TestPlugin.h"

using namespace llvm;

struct TestModulePass : public PassInfoMixin<TestModulePass> {
  PreservedAnalyses run(Module &M, ModuleAnalysisManager &MAM) {
    return PreservedAnalyses::all();
  }
};

void registerCallbacks(PassBuilder &PB) {
  PB.registerPipelineParsingCallback(
      [](StringRef Name, ModulePassManager &PM,
         ArrayRef<PassBuilder::PipelineElement> InnerPipeline) {
        if (Name == "plugin-pass") {
          PM.addPass(TestModulePass());
          return true;
        }
        return false;
      });
}

extern "C" ::llvm::PassPluginLibraryInfo LLVM_ATTRIBUTE_WEAK
llvmGetPassPluginInfo() {
  return {LLVM_PLUGIN_API_VERSION, TEST_PLUGIN_NAME, TEST_PLUGIN_VERSION,
          registerCallbacks};
}