#include "llvm/GlobalVariable.h"
#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
-#include "llvm/ModuleProvider.h"
#include "llvm/Support/IRBuilder.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/SourceMgr.h"
namespace {
Function *makeReturnGlobal(std::string Name, GlobalVariable *G, Module *M) {
- std::vector<const Type*> params;
+ std::vector<Type*> params;
const FunctionType *FTy = FunctionType::get(G->getType()->getElementType(),
params, false);
Function *F = Function::Create(FTy, GlobalValue::ExternalLinkage, Name, M);
protected:
virtual void SetUp() {
M = new Module("<main>", Context);
- MP = new ExistingModuleProvider(M);
RJMM = new RecordingJITMemoryManager;
RJMM->setPoisonMemory(true);
std::string Error;
- TheJIT.reset(EngineBuilder(MP).setEngineKind(EngineKind::JIT)
+ TheJIT.reset(EngineBuilder(M).setEngineKind(EngineKind::JIT)
.setJITMemoryManager(RJMM)
.setErrorStr(&Error).create());
ASSERT_TRUE(TheJIT.get() != NULL) << Error;
}
LLVMContext Context;
- Module *M; // Owned by MP.
- ModuleProvider *MP; // Owned by ExecutionEngine.
+ Module *M; // Owned by ExecutionEngine.
RecordingJITMemoryManager *RJMM;
OwningPtr<ExecutionEngine> TheJIT;
};
TEST(JIT, GlobalInFunction) {
LLVMContext context;
Module *M = new Module("<main>", context);
- ExistingModuleProvider *MP = new ExistingModuleProvider(M);
JITMemoryManager *MemMgr = JITMemoryManager::CreateDefaultMemManager();
// Tell the memory manager to poison freed memory so that accessing freed
// memory is more easily tested.
MemMgr->setPoisonMemory(true);
std::string Error;
- OwningPtr<ExecutionEngine> JIT(EngineBuilder(MP)
+ OwningPtr<ExecutionEngine> JIT(EngineBuilder(M)
.setEngineKind(EngineKind::JIT)
.setErrorStr(&Error)
.setJITMemoryManager(MemMgr)
const FunctionType *Func1Ty =
cast<FunctionType>(TypeBuilder<void(void), false>::get(Context));
- std::vector<const Type*> arg_types;
+ std::vector<Type*> arg_types;
arg_types.push_back(Type::getInt1Ty(Context));
const FunctionType *FuncTy = FunctionType::get(
Type::getVoidTy(Context), arg_types, false);
"} ");
Function *func = M->getFunction("main");
TheJIT->getPointerToFunction(func);
- TheJIT->deleteModuleProvider(MP);
+ TheJIT->removeModule(M);
+ delete M;
SmallPtrSet<const void*, 2> FunctionsDeallocated;
for (unsigned i = 0, e = RJMM->deallocateFunctionBodyCalls.size();
<< " not 7 from the IR version.";
}
+TEST_F(JITTest, EscapedLazyStubStillCallable) {
+ TheJIT->DisableLazyCompilation(false);
+ LoadAssembly("define internal i32 @stubbed() { "
+ " ret i32 42 "
+ "} "
+ " "
+ "define i32()* @get_stub() { "
+ " ret i32()* @stubbed "
+ "} ");
+ typedef int32_t(*StubTy)();
+
+ // Call get_stub() to get the address of @stubbed without actually JITting it.
+ Function *get_stubIR = M->getFunction("get_stub");
+ StubTy (*get_stub)() = reinterpret_cast<StubTy(*)()>(
+ (intptr_t)TheJIT->getPointerToFunction(get_stubIR));
+ StubTy stubbed = get_stub();
+ // Now get_stubIR is the only reference to stubbed's stub.
+ get_stubIR->eraseFromParent();
+ // Now there are no references inside the JIT, but we've got a pointer outside
+ // it. The stub should be callable and return the right value.
+ EXPECT_EQ(42, stubbed());
+}
+
// Converts the LLVM assembly to bitcode and returns it in a std::string. An
// empty string indicates an error.
std::string AssembleToBitcode(LLVMContext &Context, const char *Assembly) {
}
// Returns a newly-created ExecutionEngine that reads the bitcode in 'Bitcode'
-// lazily. The associated ModuleProvider (owned by the ExecutionEngine) is
-// returned in MP. Both will be NULL on an error. Bitcode must live at least
-// as long as the ExecutionEngine.
+// lazily. The associated Module (owned by the ExecutionEngine) is returned in
+// M. Both will be NULL on an error. Bitcode must live at least as long as the
+// ExecutionEngine.
ExecutionEngine *getJITFromBitcode(
- LLVMContext &Context, const std::string &Bitcode, ModuleProvider *&MP) {
+ LLVMContext &Context, const std::string &Bitcode, Module *&M) {
// c_str() is null-terminated like MemoryBuffer::getMemBuffer requires.
MemoryBuffer *BitcodeBuffer =
- MemoryBuffer::getMemBuffer(Bitcode.c_str(),
- Bitcode.c_str() + Bitcode.size(),
- "Bitcode for test");
+ MemoryBuffer::getMemBuffer(Bitcode, "Bitcode for test");
std::string errMsg;
- MP = getBitcodeModuleProvider(BitcodeBuffer, Context, &errMsg);
- if (MP == NULL) {
+ M = getLazyBitcodeModule(BitcodeBuffer, Context, &errMsg);
+ if (M == NULL) {
ADD_FAILURE() << errMsg;
delete BitcodeBuffer;
return NULL;
}
- ExecutionEngine *TheJIT = EngineBuilder(MP)
+ ExecutionEngine *TheJIT = EngineBuilder(M)
.setEngineKind(EngineKind::JIT)
.setErrorStr(&errMsg)
.create();
if (TheJIT == NULL) {
ADD_FAILURE() << errMsg;
- delete MP;
- MP = NULL;
+ delete M;
+ M = NULL;
return NULL;
}
return TheJIT;
}
+TEST(LazyLoadedJITTest, MaterializableAvailableExternallyFunctionIsntCompiled) {
+ LLVMContext Context;
+ const std::string Bitcode =
+ AssembleToBitcode(Context,
+ "define available_externally i32 "
+ " @JITTest_AvailableExternallyFunction() { "
+ " ret i32 7 "
+ "} "
+ " "
+ "define i32 @func() { "
+ " %result = tail call i32 "
+ " @JITTest_AvailableExternallyFunction() "
+ " ret i32 %result "
+ "} ");
+ ASSERT_FALSE(Bitcode.empty()) << "Assembling failed";
+ Module *M;
+ OwningPtr<ExecutionEngine> TheJIT(getJITFromBitcode(Context, Bitcode, M));
+ ASSERT_TRUE(TheJIT.get()) << "Failed to create JIT.";
+ TheJIT->DisableLazyCompilation(true);
+
+ Function *funcIR = M->getFunction("func");
+ Function *availableFunctionIR =
+ M->getFunction("JITTest_AvailableExternallyFunction");
+
+ // Double-check that the available_externally function is still unmaterialized
+ // when getPointerToFunction needs to find out if it's available_externally.
+ EXPECT_TRUE(availableFunctionIR->isMaterializable());
+
+ int32_t (*func)() = reinterpret_cast<int32_t(*)()>(
+ (intptr_t)TheJIT->getPointerToFunction(funcIR));
+ EXPECT_EQ(42, func()) << "func should return 42 from the static version,"
+ << " not 7 from the IR version.";
+}
+
TEST(LazyLoadedJITTest, EagerCompiledRecursionThroughGhost) {
LLVMContext Context;
const std::string Bitcode =
" ret i32 %result "
"} ");
ASSERT_FALSE(Bitcode.empty()) << "Assembling failed";
- ModuleProvider *MP;
- OwningPtr<ExecutionEngine> TheJIT(getJITFromBitcode(Context, Bitcode, MP));
+ Module *M;
+ OwningPtr<ExecutionEngine> TheJIT(getJITFromBitcode(Context, Bitcode, M));
ASSERT_TRUE(TheJIT.get()) << "Failed to create JIT.";
TheJIT->DisableLazyCompilation(true);
- Module *M = MP->getModule();
Function *recur1IR = M->getFunction("recur1");
Function *recur2IR = M->getFunction("recur2");
- EXPECT_TRUE(recur1IR->hasNotBeenReadFromBitcode());
- EXPECT_TRUE(recur2IR->hasNotBeenReadFromBitcode());
+ EXPECT_TRUE(recur1IR->isMaterializable());
+ EXPECT_TRUE(recur2IR->isMaterializable());
int32_t (*recur1)(int32_t) = reinterpret_cast<int32_t(*)(int32_t)>(
(intptr_t)TheJIT->getPointerToFunction(recur1IR));
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