Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter2/CMakeLists.txt

@@ -1,17 +0,0 @@
-set(LLVM_LINK_COMPONENTS
-  Analysis
-  Core
-  ExecutionEngine
-  InstCombine
-  Object
-  RuntimeDyld
-  ScalarOpts
-  Support
-  native
-  )
-
-add_kaleidoscope_chapter(BuildingAJIT-Ch2
-  toy.cpp
-  )
-
-export_executable_symbols(BuildingAJIT-Ch2)

external/llvm/examples/Kaleidoscope/BuildingAJIT/Chapter2/KaleidoscopeJIT.h

@@ -1,130 +0,0 @@
-//===- KaleidoscopeJIT.h - A simple JIT for Kaleidoscope --------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// Contains a simple JIT definition for use in the kaleidoscope tutorials.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_EXECUTIONENGINE_ORC_KALEIDOSCOPEJIT_H
-#define LLVM_EXECUTIONENGINE_ORC_KALEIDOSCOPEJIT_H
-
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ExecutionEngine/ExecutionEngine.h"
-#include "llvm/ExecutionEngine/JITSymbol.h"
-#include "llvm/ExecutionEngine/RTDyldMemoryManager.h"
-#include "llvm/ExecutionEngine/SectionMemoryManager.h"
-#include "llvm/ExecutionEngine/Orc/CompileUtils.h"
-#include "llvm/ExecutionEngine/Orc/IRCompileLayer.h"
-#include "llvm/ExecutionEngine/Orc/IRTransformLayer.h"
-#include "llvm/ExecutionEngine/Orc/LambdaResolver.h"
-#include "llvm/ExecutionEngine/Orc/RTDyldObjectLinkingLayer.h"
-#include "llvm/IR/DataLayout.h"
-#include "llvm/IR/LegacyPassManager.h"
-#include "llvm/IR/Mangler.h"
-#include "llvm/Support/DynamicLibrary.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/Transforms/Scalar.h"
-#include "llvm/Transforms/Scalar/GVN.h"
-#include <algorithm>
-#include <memory>
-#include <string>
-#include <vector>
-
-namespace llvm {
-namespace orc {
-
-class KaleidoscopeJIT {
-private:
-  std::unique_ptr<TargetMachine> TM;
-  const DataLayout DL;
-  RTDyldObjectLinkingLayer ObjectLayer;
-  IRCompileLayer<decltype(ObjectLayer), SimpleCompiler> CompileLayer;
-
-  using OptimizeFunction =
-      std::function<std::shared_ptr<Module>(std::shared_ptr<Module>)>;
-
-  IRTransformLayer<decltype(CompileLayer), OptimizeFunction> OptimizeLayer;
-
-public:
-  using ModuleHandle = decltype(OptimizeLayer)::ModuleHandleT;
-
-  KaleidoscopeJIT()
-      : TM(EngineBuilder().selectTarget()), DL(TM->createDataLayout()),
-        ObjectLayer([]() { return std::make_shared<SectionMemoryManager>(); }),
-        CompileLayer(ObjectLayer, SimpleCompiler(*TM)),
-        OptimizeLayer(CompileLayer,
-                      [this](std::shared_ptr<Module> M) {
-                        return optimizeModule(std::move(M));
-                      }) {
-    llvm::sys::DynamicLibrary::LoadLibraryPermanently(nullptr);
-  }
-
-  TargetMachine &getTargetMachine() { return *TM; }
-
-  ModuleHandle addModule(std::unique_ptr<Module> M) {
-    // Build our symbol resolver:
-    // Lambda 1: Look back into the JIT itself to find symbols that are part of
-    //           the same "logical dylib".
-    // Lambda 2: Search for external symbols in the host process.
-    auto Resolver = createLambdaResolver(
-        [&](const std::string &Name) {
-          if (auto Sym = OptimizeLayer.findSymbol(Name, false))
-            return Sym;
-          return JITSymbol(nullptr);
-        },
-        [](const std::string &Name) {
-          if (auto SymAddr =
-                RTDyldMemoryManager::getSymbolAddressInProcess(Name))
-            return JITSymbol(SymAddr, JITSymbolFlags::Exported);
-          return JITSymbol(nullptr);
-        });
-
-    // Add the set to the JIT with the resolver we created above and a newly
-    // created SectionMemoryManager.
-    return cantFail(OptimizeLayer.addModule(std::move(M),
-                                            std::move(Resolver)));
-  }
-
-  JITSymbol findSymbol(const std::string Name) {
-    std::string MangledName;
-    raw_string_ostream MangledNameStream(MangledName);
-    Mangler::getNameWithPrefix(MangledNameStream, Name, DL);
-    return OptimizeLayer.findSymbol(MangledNameStream.str(), true);
-  }
-
-  void removeModule(ModuleHandle H) {
-    cantFail(OptimizeLayer.removeModule(H));
-  }
-
-private:
-  std::shared_ptr<Module> optimizeModule(std::shared_ptr<Module> M) {
-    // Create a function pass manager.
-    auto FPM = llvm::make_unique<legacy::FunctionPassManager>(M.get());
-
-    // Add some optimizations.
-    FPM->add(createInstructionCombiningPass());
-    FPM->add(createReassociatePass());
-    FPM->add(createGVNPass());
-    FPM->add(createCFGSimplificationPass());
-    FPM->doInitialization();
-
-    // Run the optimizations over all functions in the module being added to
-    // the JIT.
-    for (auto &F : *M)
-      FPM->run(F);
-
-    return M;
-  }
-};
-
-} // end namespace orc
-} // end namespace llvm
-
-#endif // LLVM_EXECUTIONENGINE_ORC_KALEIDOSCOPEJIT_H