コード例 #1
0
ファイル: PassManager.cs プロジェクト: bamfbamf/LLVMSharp
 public void AddCorrelatedValuePropagationPass() => LLVM.AddCorrelatedValuePropagationPass(this.Unwrap());
コード例 #2
0
        public void Compile()
        {
            string triple = "x86_64-pc-linux-gnu";

            LLVM.InitializeX86TargetInfo();
            LLVM.InitializeX86Target();
            LLVM.InitializeX86TargetMC();
            LLVM.InitializeX86AsmParser();
            LLVM.InitializeX86AsmPrinter();

            LLVM.SetTarget(ModuleRef, triple);

            var fnPassManager     = LLVM.CreateFunctionPassManagerForModule(ModuleRef);
            var modulePassManager = LLVM.CreatePassManager();

            LLVM.InitializeFunctionPassManager(fnPassManager);

            // Optimizations
            LLVM.AddPromoteMemoryToRegisterPass(fnPassManager);
            LLVM.AddInstructionCombiningPass(fnPassManager);
            LLVM.AddJumpThreadingPass(fnPassManager);
            LLVM.AddEarlyCSEPass(fnPassManager);
            LLVM.AddConstantPropagationPass(fnPassManager);
            LLVM.AddCFGSimplificationPass(fnPassManager);
            LLVM.AddReassociatePass(fnPassManager);
            LLVM.AddLoopUnrollPass(fnPassManager);
            LLVM.AddLoopRerollPass(fnPassManager);
            LLVM.AddLoopDeletionPass(fnPassManager);
            LLVM.AddLoopRotatePass(fnPassManager);
            LLVM.AddLoopIdiomPass(fnPassManager);
            LLVM.AddLoopUnswitchPass(fnPassManager);
            LLVM.AddDeadStoreEliminationPass(fnPassManager);
            LLVM.AddBasicAliasAnalysisPass(fnPassManager);
            LLVM.AddIndVarSimplifyPass(fnPassManager);
            LLVM.AddSCCPPass(fnPassManager);
            LLVM.AddLICMPass(fnPassManager);
            LLVM.AddCorrelatedValuePropagationPass(fnPassManager);
            LLVM.AddScopedNoAliasAAPass(modulePassManager);
            LLVM.AddDeadArgEliminationPass(modulePassManager);
            LLVM.AddTailCallEliminationPass(modulePassManager);
            LLVM.AddLoopUnswitchPass(modulePassManager);
            LLVM.AddIPSCCPPass(modulePassManager);
            LLVM.AddReassociatePass(modulePassManager);
            LLVM.AddAlwaysInlinerPass(modulePassManager);

            // O2
            LLVM.AddNewGVNPass(fnPassManager);
            LLVM.AddLowerExpectIntrinsicPass(fnPassManager);
            LLVM.AddScalarReplAggregatesPassSSA(fnPassManager);
            LLVM.AddMergedLoadStoreMotionPass(fnPassManager);
            LLVM.AddSLPVectorizePass(fnPassManager);
            LLVM.AddConstantMergePass(modulePassManager);
            LLVM.AddConstantMergePass(modulePassManager);
            LLVM.AddFunctionInliningPass(modulePassManager);

            void RecurseTypes(Collection <TypeDefinition> collection, Action <TypeDefinition> callback)
            {
                foreach (TypeDefinition typeDef in collection)
                {
                    callback(typeDef);
                    RecurseTypes(typeDef.NestedTypes, callback);
                }
            }

            // First, declare all types and only define the types in a later pass.
            // The reason is that we may have cycles of types.
            var typeList = new List <TypeDefinition>();

            foreach (ModuleDefinition moduleDef in assemblyDefinition.Modules)
            {
                RecurseTypes(moduleDef.Types, typeDef =>
                {
                    typeList.Add(typeDef);
                    TypeLookup.DeclareType(typeDef);
                });
            }

            // Now, we have all types, so we can declare the methods.
            // Again, we may have cycles so the methods are declared and defined in separate passes.
            // Also define the types now.
            var methodCompilerLookup = new Dictionary <MethodDefinition, MethodCompiler>();

            foreach (var typeDef in typeList)
            {
                TypeLookup.DefineType(typeDef);
                StaticFieldLookup.DeclareFieldsFor(typeDef);

                foreach (MethodDefinition methodDef in typeDef.Methods)
                {
                    methodCompilerLookup.Add(methodDef, new MethodCompiler(this, methodDef));
                }
            }

            // Compile the methods.
            Action <TypeDefinition> methodCompilationFn = typeDef =>
            {
                foreach (MethodDefinition methodDef in typeDef.Methods)
                {
                    var methodCompiler = methodCompilerLookup[methodDef];
                    methodCompiler.Compile();

                    if (!LLVM.VerifyFunction(methodCompiler.FunctionValueRef, LLVMVerifierFailureAction.LLVMPrintMessageAction))
                    {
                        LLVM.RunFunctionPassManager(fnPassManager, methodCompiler.FunctionValueRef);
                    }
                }
            };

            if (LLVM.StartMultithreaded())
            {
                Parallel.ForEach(typeList, methodCompilationFn);
            }
            else
            {
                typeList.ForEach(methodCompilationFn);
            }

            // Free memory already.
            MethodLookup.Finish();
            methodCompilerLookup.Clear();

            Console.WriteLine("-------------------");

            if (LLVM.VerifyModule(ModuleRef, LLVMVerifierFailureAction.LLVMPrintMessageAction, out var outMsg))
            {
                Console.WriteLine(outMsg);
            }

            LLVM.RunPassManager(modulePassManager, ModuleRef);

            // Cleanup
            LLVM.DisposePassManager(modulePassManager);
            LLVM.DumpModule(ModuleRef);



            // XXX

            string        errorMsg;
            LLVMTargetRef targetRef;

            if (LLVM.GetTargetFromTriple(triple, out targetRef, out errorMsg))
            {
                Console.WriteLine(errorMsg);
            }

            LLVMTargetMachineRef machineRef = LLVM.CreateTargetMachine(targetRef, triple, "generic", "", LLVMCodeGenOptLevel.LLVMCodeGenLevelDefault, LLVMRelocMode.LLVMRelocDefault, LLVMCodeModel.LLVMCodeModelDefault);

            System.IO.File.Delete("test.s");
            if (LLVM.TargetMachineEmitToFile(machineRef, ModuleRef, Marshal.StringToHGlobalAnsi("test.s"), LLVMCodeGenFileType.LLVMAssemblyFile, out errorMsg))
            {
                Console.WriteLine(errorMsg);
            }

            Console.WriteLine("written");

            LLVM.DisposeTargetMachine(machineRef);
        }