-//===- ModuleMaker.cpp - Example project which creates modules --*- C++ -*-===//
+//===- examples/ModuleMaker/ModuleMaker.cpp - Example project ---*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
//
// This programs is a simple example that creates an LLVM module "from scratch",
-// emitting it as a bytecode file to standard out. This is just to show how
+// emitting it as a bitcode file to standard out. This is just to show how
// LLVM projects work and to demonstrate some of the LLVM APIs.
//
//===----------------------------------------------------------------------===//
#include "llvm/DerivedTypes.h"
#include "llvm/Constants.h"
#include "llvm/Instructions.h"
-#include "llvm/Bytecode/Writer.h"
-
+#include "llvm/Bitcode/ReaderWriter.h"
+#include <iostream>
using namespace llvm;
int main() {
// Create the "module" or "program" or "translation unit" to hold the
// function
Module *M = new Module("test");
-
+
// Create the main function: first create the type 'int ()'
- FunctionType *FT = FunctionType::get(Type::IntTy, std::vector<const Type*>(),
+ FunctionType *FT = FunctionType::get(Type::Int32Ty, std::vector<const Type*>(),
/*not vararg*/false);
-
+
// By passing a module as the last parameter to the Function constructor,
// it automatically gets appended to the Module.
- Function *F = new Function(FT, Function::ExternalLinkage, "main", M);
-
+ Function *F = Function::Create(FT, Function::ExternalLinkage, "main", M);
+
// Add a basic block to the function... again, it automatically inserts
// because of the last argument.
- BasicBlock *BB = new BasicBlock("EntryBlock", F);
-
+ BasicBlock *BB = BasicBlock::Create("EntryBlock", F);
+
// Get pointers to the constant integers...
- Value *Two = ConstantSInt::get(Type::IntTy, 2);
- Value *Three = ConstantSInt::get(Type::IntTy, 3);
-
+ Value *Two = ConstantInt::get(Type::Int32Ty, 2);
+ Value *Three = ConstantInt::get(Type::Int32Ty, 3);
+
// Create the add instruction... does not insert...
Instruction *Add = BinaryOperator::create(Instruction::Add, Two, Three,
"addresult");
-
+
// explicitly insert it into the basic block...
BB->getInstList().push_back(Add);
-
+
// Create the return instruction and add it to the basic block
- BB->getInstList().push_back(new ReturnInst(Add));
-
- // Output the bytecode file to stdout
- WriteBytecodeToFile(M, std::cout);
-
+ BB->getInstList().push_back(ReturnInst::Create(Add));
+
+ // Output the bitcode file to stdout
+ WriteBitcodeToFile(M, std::cout);
+
// Delete the module and all of its contents.
delete M;
return 0;