//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 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/Module.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Constants.h"
-#include "llvm/Instructions.h"
-#include "llvm/Bytecode/Writer.h"
-#include "llvm/Support/Streams.h"
+#include "llvm/Bitcode/ReaderWriter.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
+#include "llvm/Support/raw_ostream.h"
using namespace llvm;
int main() {
+ LLVMContext Context;
+
// Create the "module" or "program" or "translation unit" to hold the
// function
- Module *M = new Module("test");
+ Module *M = new Module("test", Context);
// Create the main function: first create the type 'int ()'
- FunctionType *FT = FunctionType::get(Type::IntTy, std::vector<const Type*>(),
- /*not vararg*/false);
+ FunctionType *FT =
+ FunctionType::get(Type::getInt32Ty(Context), /*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(Context, "EntryBlock", F);
// Get pointers to the constant integers...
- Value *Two = ConstantInt::get(Type::IntTy, 2);
- Value *Three = ConstantInt::get(Type::IntTy, 3);
+ Value *Two = ConstantInt::get(Type::getInt32Ty(Context), 2);
+ Value *Three = ConstantInt::get(Type::getInt32Ty(Context), 3);
// Create the add instruction... does not insert...
- Instruction *Add = BinaryOperator::create(Instruction::Add, Two, Three,
+ 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));
+ BB->getInstList().push_back(ReturnInst::Create(Context, Add));
- // Output the bytecode file to stdout
- WriteBytecodeToFile(M, llvm_cout);
+ // Output the bitcode file to stdout
+ WriteBitcodeToFile(M, outs());
// Delete the module and all of its contents.
delete M;