Kill ModuleProvider and ghost linkage by inverting the relationship between

[oota-llvm.git] / examples / HowToUseJIT / HowToUseJIT.cpp

diff --git a/examples/HowToUseJIT/HowToUseJIT.cpp b/examples/HowToUseJIT/HowToUseJIT.cpp
index 5fa4237179f7605fd0694f0b02394ec3ef17ea48..426d2818cd414af7dc8d5a4f884c5adbe1c0b971 100644 (file)
--- a/examples/HowToUseJIT/HowToUseJIT.cpp
+++ b/examples/HowToUseJIT/HowToUseJIT.cpp
@@ -34,34 +34,42 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/LLVMContext.h"
 #include "llvm/Module.h"
 #include "llvm/Constants.h"
 #include "llvm/DerivedTypes.h"
 #include "llvm/Instructions.h"
-#include "llvm/ModuleProvider.h"
 #include "llvm/ExecutionEngine/JIT.h"
 #include "llvm/ExecutionEngine/Interpreter.h"
 #include "llvm/ExecutionEngine/GenericValue.h"
-#include <iostream>
+#include "llvm/Target/TargetSelect.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/raw_ostream.h"
 using namespace llvm;
 
 int main() {
+  
+  InitializeNativeTarget();
+
+  LLVMContext Context;
+  
   // Create some module to put our function into it.
-  Module *M = new Module("test");
+  Module *M = new Module("test", Context);
 
   // Create the add1 function entry and insert this entry into module M.  The
   // function will have a return type of "int" and take an argument of "int".
   // The '0' terminates the list of argument types.
   Function *Add1F =
-    cast<Function>(M->getOrInsertFunction("add1", Type::Int32Ty, Type::Int32Ty,
+    cast<Function>(M->getOrInsertFunction("add1", Type::getInt32Ty(Context),
+                                          Type::getInt32Ty(Context),
                                           (Type *)0));
 
   // Add a basic block to the function. As before, it automatically inserts
   // because of the last argument.
-  BasicBlock *BB = BasicBlock::Create("EntryBlock", Add1F);
+  BasicBlock *BB = BasicBlock::Create(Context, "EntryBlock", Add1F);
 
   // Get pointers to the constant `1'.
-  Value *One = ConstantInt::get(Type::Int32Ty, 1);
+  Value *One = ConstantInt::get(Type::getInt32Ty(Context), 1);
 
   // Get pointers to the integer argument of the add1 function...
   assert(Add1F->arg_begin() != Add1F->arg_end()); // Make sure there's an arg
@@ -72,7 +80,7 @@ int main() {
   Instruction *Add = BinaryOperator::CreateAdd(One, ArgX, "addresult", BB);
 
   // Create the return instruction and add it to the basic block
-  ReturnInst::Create(Add, BB);
+  ReturnInst::Create(Context, Add, BB);
 
   // Now, function add1 is ready.
 
@@ -80,33 +88,37 @@ int main() {
   // Now we going to create function `foo', which returns an int and takes no
   // arguments.
   Function *FooF =
-    cast<Function>(M->getOrInsertFunction("foo", Type::Int32Ty, (Type *)0));
+    cast<Function>(M->getOrInsertFunction("foo", Type::getInt32Ty(Context),
+                                          (Type *)0));
 
   // Add a basic block to the FooF function.
-  BB = BasicBlock::Create("EntryBlock", FooF);
+  BB = BasicBlock::Create(Context, "EntryBlock", FooF);
 
   // Get pointers to the constant `10'.
-  Value *Ten = ConstantInt::get(Type::Int32Ty, 10);
+  Value *Ten = ConstantInt::get(Type::getInt32Ty(Context), 10);
 
   // Pass Ten to the call call:
   CallInst *Add1CallRes = CallInst::Create(Add1F, Ten, "add1", BB);
   Add1CallRes->setTailCall(true);
 
   // Create the return instruction and add it to the basic block.
-  ReturnInst::Create(Add1CallRes, BB);
+  ReturnInst::Create(Context, Add1CallRes, BB);
 
   // Now we create the JIT.
-  ExistingModuleProvider* MP = new ExistingModuleProvider(M);
-  ExecutionEngine* EE = ExecutionEngine::create(MP, false);
+  ExecutionEngine* EE = EngineBuilder(M).create();
 
-  std::cout << "We just constructed this LLVM module:\n\n" << *M;
-  std::cout << "\n\nRunning foo: " << std::flush;
+  outs() << "We just constructed this LLVM module:\n\n" << *M;
+  outs() << "\n\nRunning foo: ";
+  outs().flush();
 
   // Call the `foo' function with no arguments:
   std::vector<GenericValue> noargs;
   GenericValue gv = EE->runFunction(FooF, noargs);
 
   // Import result of execution:
-  std::cout << "Result: " << gv.IntVal.toStringUnsigned(10) << "\n";
+  outs() << "Result: " << gv.IntVal << "\n";
+  EE->freeMachineCodeForFunction(FooF);
+  delete EE;
+  llvm_shutdown();
   return 0;
 }