//
//===----------------------------------------------------------------------===//
-#include "llvm/LLVMContext.h"
-#include "llvm/Module.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Constants.h"
-#include "llvm/Instructions.h"
-#include "llvm/ModuleProvider.h"
-#include "llvm/Analysis/Verifier.h"
-#include "llvm/ExecutionEngine/JIT.h"
-#include "llvm/ExecutionEngine/Interpreter.h"
+#include "llvm/IR/Verifier.h"
#include "llvm/ExecutionEngine/GenericValue.h"
+#include "llvm/ExecutionEngine/Interpreter.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/TargetSelect.h"
#include "llvm/Support/raw_ostream.h"
+
using namespace llvm;
static Function *CreateFibFunction(Module *M, LLVMContext &Context) {
- // Create the fib function and insert it into module M. This function is said
+ // Create the fib function and insert it into module M. This function is said
// to return an int and take an int parameter.
Function *FibF =
- cast<Function>(M->getOrInsertFunction("fib", Type::Int32Ty, Type::Int32Ty,
- (Type *)0));
+ cast<Function>(M->getOrInsertFunction("fib", Type::getInt32Ty(Context),
+ Type::getInt32Ty(Context),
+ nullptr));
// Add a basic block to the function.
- BasicBlock *BB = BasicBlock::Create("EntryBlock", FibF);
+ BasicBlock *BB = BasicBlock::Create(Context, "EntryBlock", FibF);
// Get pointers to the constants.
- Value *One = ConstantInt::get(Type::Int32Ty, 1);
- Value *Two = ConstantInt::get(Type::Int32Ty, 2);
+ Value *One = ConstantInt::get(Type::getInt32Ty(Context), 1);
+ Value *Two = ConstantInt::get(Type::getInt32Ty(Context), 2);
// Get pointer to the integer argument of the add1 function...
Argument *ArgX = FibF->arg_begin(); // Get the arg.
ArgX->setName("AnArg"); // Give it a nice symbolic name for fun.
// Create the true_block.
- BasicBlock *RetBB = BasicBlock::Create("return", FibF);
+ BasicBlock *RetBB = BasicBlock::Create(Context, "return", FibF);
// Create an exit block.
- BasicBlock* RecurseBB = BasicBlock::Create("recurse", FibF);
+ BasicBlock* RecurseBB = BasicBlock::Create(Context, "recurse", FibF);
// Create the "if (arg <= 2) goto exitbb"
Value *CondInst = new ICmpInst(*BB, ICmpInst::ICMP_SLE, ArgX, Two, "cond");
BranchInst::Create(RetBB, RecurseBB, CondInst, BB);
// Create: ret int 1
- ReturnInst::Create(One, RetBB);
+ ReturnInst::Create(Context, One, RetBB);
// create fib(x-1)
Value *Sub = BinaryOperator::CreateSub(ArgX, One, "arg", RecurseBB);
"addresult", RecurseBB);
// Create the return instruction and add it to the basic block
- ReturnInst::Create(Sum, RecurseBB);
+ ReturnInst::Create(Context, Sum, RecurseBB);
return FibF;
}
-
int main(int argc, char **argv) {
int n = argc > 1 ? atol(argv[1]) : 24;
+ InitializeNativeTarget();
LLVMContext Context;
-
+
// Create some module to put our function into it.
- Module *M = new Module("test", Context);
+ std::unique_ptr<Module> Owner(new Module("test", Context));
+ Module *M = Owner.get();
// We are about to create the "fib" function:
Function *FibF = CreateFibFunction(M, Context);
// Now we going to create JIT
- ExecutionEngine *EE = EngineBuilder(M).create();
+ std::string errStr;
+ ExecutionEngine *EE =
+ EngineBuilder(std::move(Owner))
+ .setErrorStr(&errStr)
+ .setEngineKind(EngineKind::JIT)
+ .create();
+
+ if (!EE) {
+ errs() << argv[0] << ": Failed to construct ExecutionEngine: " << errStr
+ << "\n";
+ return 1;
+ }
errs() << "verifying... ";
if (verifyModule(*M)) {
// import result of execution
outs() << "Result: " << GV.IntVal << "\n";
+
return 0;
}