10b57cec5SDimitry Andric //===------ CompileUtils.cpp - Utilities for compiling IR in the JIT ------===// 20b57cec5SDimitry Andric // 30b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 40b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 50b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 60b57cec5SDimitry Andric // 70b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 80b57cec5SDimitry Andric 90b57cec5SDimitry Andric #include "llvm/ExecutionEngine/Orc/CompileUtils.h" 100b57cec5SDimitry Andric 110b57cec5SDimitry Andric #include "llvm/ADT/SmallVector.h" 120b57cec5SDimitry Andric #include "llvm/ExecutionEngine/ObjectCache.h" 130b57cec5SDimitry Andric #include "llvm/IR/LegacyPassManager.h" 140b57cec5SDimitry Andric #include "llvm/IR/Module.h" 150b57cec5SDimitry Andric #include "llvm/Object/ObjectFile.h" 160b57cec5SDimitry Andric #include "llvm/Support/Error.h" 170b57cec5SDimitry Andric #include "llvm/Support/ErrorHandling.h" 180b57cec5SDimitry Andric #include "llvm/Support/MemoryBuffer.h" 190b57cec5SDimitry Andric #include "llvm/Support/SmallVectorMemoryBuffer.h" 200b57cec5SDimitry Andric #include "llvm/Target/TargetMachine.h" 210b57cec5SDimitry Andric 220b57cec5SDimitry Andric #include <algorithm> 230b57cec5SDimitry Andric 240b57cec5SDimitry Andric namespace llvm { 250b57cec5SDimitry Andric namespace orc { 260b57cec5SDimitry Andric 270b57cec5SDimitry Andric /// Compile a Module to an ObjectFile. 280b57cec5SDimitry Andric SimpleCompiler::CompileResult SimpleCompiler::operator()(Module &M) { 290b57cec5SDimitry Andric CompileResult CachedObject = tryToLoadFromObjectCache(M); 300b57cec5SDimitry Andric if (CachedObject) 310b57cec5SDimitry Andric return CachedObject; 320b57cec5SDimitry Andric 330b57cec5SDimitry Andric SmallVector<char, 0> ObjBufferSV; 340b57cec5SDimitry Andric 350b57cec5SDimitry Andric { 360b57cec5SDimitry Andric raw_svector_ostream ObjStream(ObjBufferSV); 370b57cec5SDimitry Andric 380b57cec5SDimitry Andric legacy::PassManager PM; 390b57cec5SDimitry Andric MCContext *Ctx; 400b57cec5SDimitry Andric if (TM.addPassesToEmitMC(PM, Ctx, ObjStream)) 410b57cec5SDimitry Andric llvm_unreachable("Target does not support MC emission."); 420b57cec5SDimitry Andric PM.run(M); 430b57cec5SDimitry Andric } 440b57cec5SDimitry Andric 45*8bcb0991SDimitry Andric auto ObjBuffer = std::make_unique<SmallVectorMemoryBuffer>( 460b57cec5SDimitry Andric std::move(ObjBufferSV), 470b57cec5SDimitry Andric "<in memory object compiled from " + M.getModuleIdentifier() + ">"); 480b57cec5SDimitry Andric 490b57cec5SDimitry Andric auto Obj = object::ObjectFile::createObjectFile(ObjBuffer->getMemBufferRef()); 500b57cec5SDimitry Andric 510b57cec5SDimitry Andric if (Obj) { 520b57cec5SDimitry Andric notifyObjectCompiled(M, *ObjBuffer); 530b57cec5SDimitry Andric return std::move(ObjBuffer); 540b57cec5SDimitry Andric } 550b57cec5SDimitry Andric 560b57cec5SDimitry Andric // TODO: Actually report errors helpfully. 570b57cec5SDimitry Andric consumeError(Obj.takeError()); 580b57cec5SDimitry Andric return nullptr; 590b57cec5SDimitry Andric } 600b57cec5SDimitry Andric 610b57cec5SDimitry Andric SimpleCompiler::CompileResult 620b57cec5SDimitry Andric SimpleCompiler::tryToLoadFromObjectCache(const Module &M) { 630b57cec5SDimitry Andric if (!ObjCache) 640b57cec5SDimitry Andric return CompileResult(); 650b57cec5SDimitry Andric 660b57cec5SDimitry Andric return ObjCache->getObject(&M); 670b57cec5SDimitry Andric } 680b57cec5SDimitry Andric 690b57cec5SDimitry Andric void SimpleCompiler::notifyObjectCompiled(const Module &M, 700b57cec5SDimitry Andric const MemoryBuffer &ObjBuffer) { 710b57cec5SDimitry Andric if (ObjCache) 720b57cec5SDimitry Andric ObjCache->notifyObjectCompiled(&M, ObjBuffer.getMemBufferRef()); 730b57cec5SDimitry Andric } 740b57cec5SDimitry Andric 750b57cec5SDimitry Andric ConcurrentIRCompiler::ConcurrentIRCompiler(JITTargetMachineBuilder JTMB, 760b57cec5SDimitry Andric ObjectCache *ObjCache) 770b57cec5SDimitry Andric : JTMB(std::move(JTMB)), ObjCache(ObjCache) {} 780b57cec5SDimitry Andric 790b57cec5SDimitry Andric std::unique_ptr<MemoryBuffer> ConcurrentIRCompiler::operator()(Module &M) { 800b57cec5SDimitry Andric auto TM = cantFail(JTMB.createTargetMachine()); 810b57cec5SDimitry Andric SimpleCompiler C(*TM, ObjCache); 820b57cec5SDimitry Andric return C(M); 830b57cec5SDimitry Andric } 840b57cec5SDimitry Andric 850b57cec5SDimitry Andric } // end namespace orc 860b57cec5SDimitry Andric } // end namespace llvm 87