#include "llvm/ExecutionEngine/MCJIT.h"
#include "MCJITTestBase.h"
-#include "SectionMemoryManager.h"
#include "gtest/gtest.h"
using namespace llvm;
+namespace {
+
class MCJITTest : public testing::Test, public MCJITTestBase {
protected:
-
- virtual void SetUp() {
- M.reset(createEmptyModule("<main>"));
- }
+ void SetUp() override { M.reset(createEmptyModule("<main>")); }
};
-namespace {
+// FIXME: Ensure creating an execution engine does not crash when constructed
+// with a null module.
+/*
+TEST_F(MCJITTest, null_module) {
+ createJIT(0);
+}
+*/
// FIXME: In order to JIT an empty module, there needs to be
// an interface to ExecutionEngine that forces compilation but
-// does require retrieval of a pointer to a function/global.
+// does not require retrieval of a pointer to a function/global.
/*
TEST_F(MCJITTest, empty_module) {
createJIT(M.take());
int initialValue = 5;
GlobalValue *Global = insertGlobalInt32(M.get(), "test_global", initialValue);
- createJIT(M.take());
+ createJIT(std::move(M));
void *globalPtr = TheJIT->getPointerToGlobal(Global);
- static_cast<SectionMemoryManager*>(MM)->invalidateInstructionCache();
- EXPECT_TRUE(0 != globalPtr)
+ EXPECT_TRUE(nullptr != globalPtr)
<< "Unable to get pointer to global value from JIT";
EXPECT_EQ(initialValue, *(int32_t*)globalPtr)
SKIP_UNSUPPORTED_PLATFORM;
Function *F = insertAddFunction(M.get());
- createJIT(M.take());
- void *addPtr = TheJIT->getPointerToFunction(F);
- static_cast<SectionMemoryManager*>(MM)->invalidateInstructionCache();
+ createJIT(std::move(M));
+ uint64_t addPtr = TheJIT->getFunctionAddress(F->getName().str());
EXPECT_TRUE(0 != addPtr)
<< "Unable to get pointer to function from JIT";
- int (*AddPtrTy)(int, int) = (int(*)(int, int))(intptr_t)addPtr;
- EXPECT_EQ(0, AddPtrTy(0, 0));
- EXPECT_EQ(3, AddPtrTy(1, 2));
- EXPECT_EQ(-5, AddPtrTy(-2, -3));
+ ASSERT_TRUE(addPtr != 0) << "Unable to get pointer to function .";
+ int (*AddPtr)(int, int) = (int(*)(int, int))addPtr ;
+ EXPECT_EQ(0, AddPtr(0, 0));
+ EXPECT_EQ(1, AddPtr(1, 0));
+ EXPECT_EQ(3, AddPtr(1, 2));
+ EXPECT_EQ(-5, AddPtr(-2, -3));
+ EXPECT_EQ(30, AddPtr(10, 20));
+ EXPECT_EQ(-30, AddPtr(-10, -20));
+ EXPECT_EQ(-40, AddPtr(-10, -30));
}
TEST_F(MCJITTest, run_main) {
int rc = 6;
Function *Main = insertMainFunction(M.get(), 6);
- createJIT(M.take());
- void *vPtr = TheJIT->getPointerToFunction(Main);
- static_cast<SectionMemoryManager*>(MM)->invalidateInstructionCache();
- EXPECT_TRUE(0 != vPtr)
+ createJIT(std::move(M));
+ uint64_t ptr = TheJIT->getFunctionAddress(Main->getName().str());
+ EXPECT_TRUE(0 != ptr)
<< "Unable to get pointer to main() from JIT";
- int (*FuncPtr)(void) = (int(*)(void))(intptr_t)vPtr;
+ int (*FuncPtr)(void) = (int(*)(void))ptr;
int returnCode = FuncPtr();
EXPECT_EQ(returnCode, rc);
}
Value *ReadGlobal = Builder.CreateLoad(GV);
endFunctionWithRet(ReturnGlobal, ReadGlobal);
- createJIT(M.take());
- void *rgvPtr = TheJIT->getPointerToFunction(ReturnGlobal);
- static_cast<SectionMemoryManager*>(MM)->invalidateInstructionCache();
+ createJIT(std::move(M));
+ uint64_t rgvPtr = TheJIT->getFunctionAddress(ReturnGlobal->getName().str());
EXPECT_TRUE(0 != rgvPtr);
- int32_t(*FuncPtr)(void) = (int32_t(*)(void))(intptr_t)rgvPtr;
+ int32_t(*FuncPtr)(void) = (int32_t(*)(void))rgvPtr;
EXPECT_EQ(initialNum, FuncPtr())
<< "Invalid value for global returned from JITted function";
}
void *gvPtr = TheJIT->getPointerToGlobal(GV);
EXPECT_EQ(initialNum, *(int32_t*)gvPtr);
- void *vPtr = TheJIT->getPointerToFunction(IncrementGlobal);
+ void *vPtr = TheJIT->getFunctionAddress(IncrementGlobal->getName().str());
EXPECT_TRUE(0 != vPtr)
<< "Unable to get pointer to main() from JIT";
}
*/
+// PR16013: XFAIL this test on ARM, which currently can't handle multiple relocations.
+#if !defined(__arm__)
+
TEST_F(MCJITTest, multiple_functions) {
SKIP_UNSUPPORTED_PLATFORM;
std::stringstream funcName;
funcName << "level_" << i;
Outer = startFunction<int32_t(void)>(M.get(), funcName.str());
- Value *innerResult = Builder.CreateCall(Inner);
+ Value *innerResult = Builder.CreateCall(Inner, {});
endFunctionWithRet(Outer, innerResult);
Inner = Outer;
}
- createJIT(M.take());
- void *vPtr = TheJIT->getPointerToFunction(Outer);
- static_cast<SectionMemoryManager*>(MM)->invalidateInstructionCache();
- EXPECT_TRUE(0 != vPtr)
+ createJIT(std::move(M));
+ uint64_t ptr = TheJIT->getFunctionAddress(Outer->getName().str());
+ EXPECT_TRUE(0 != ptr)
<< "Unable to get pointer to outer function from JIT";
- int32_t(*FuncPtr)(void) = (int32_t(*)(void))(intptr_t)vPtr;
+ int32_t(*FuncPtr)(void) = (int32_t(*)(void))ptr;
EXPECT_EQ(innerRetVal, FuncPtr())
<< "Incorrect result returned from function";
}
-// FIXME: ExecutionEngine has no support empty modules
-/*
-TEST_F(MCJITTest, multiple_empty_modules) {
- SKIP_UNSUPPORTED_PLATFORM;
-
- createJIT(M.take());
- // JIT-compile
- EXPECT_NE(0, TheJIT->getObjectImage())
- << "Unable to generate executable loaded object image";
-
- TheJIT->addModule(createEmptyModule("<other module>"));
- TheJIT->addModule(createEmptyModule("<other other module>"));
+#endif /*!defined(__arm__)*/
- // JIT again
- EXPECT_NE(0, TheJIT->getObjectImage())
- << "Unable to generate executable loaded object image";
-}
-*/
-
-// FIXME: MCJIT must support multiple modules
-/*
-TEST_F(MCJITTest, multiple_modules) {
+TEST_F(MCJITTest, multiple_decl_lookups) {
SKIP_UNSUPPORTED_PLATFORM;
- Function *Callee = insertAddFunction(M.get());
- createJIT(M.take());
-
- // caller function is defined in a different module
- M.reset(createEmptyModule("<caller module>"));
+ Function *Foo = insertExternalReferenceToFunction<void(void)>(M.get(), "_exit");
+ createJIT(std::move(M));
+ void *A = TheJIT->getPointerToFunction(Foo);
+ void *B = TheJIT->getPointerToFunction(Foo);
- Function *CalleeRef = insertExternalReferenceToFunction(M.get(), Callee);
- Function *Caller = insertSimpleCallFunction(M.get(), CalleeRef);
-
- TheJIT->addModule(M.take());
+ EXPECT_TRUE(A != 0) << "Failed lookup - test not correctly configured.";
+ EXPECT_EQ(A, B) << "Repeat calls to getPointerToFunction fail.";
+}
- // get a function pointer in a module that was not used in EE construction
- void *vPtr = TheJIT->getPointerToFunction(Caller);
- EXPECT_NE(0, vPtr)
- << "Unable to get pointer to caller function from JIT";
+typedef void * (*FunctionHandlerPtr)(const std::string &str);
- int(*FuncPtr)(int, int) = (int(*)(int, int))(intptr_t)vPtr;
- EXPECT_EQ(0, FuncPtr(0, 0));
- EXPECT_EQ(30, FuncPtr(10, 20));
- EXPECT_EQ(-30, FuncPtr(-10, -20));
+TEST_F(MCJITTest, lazy_function_creator_pointer) {
+ SKIP_UNSUPPORTED_PLATFORM;
+
+ Function *Foo = insertExternalReferenceToFunction<int32_t(void)>(M.get(),
+ "\1Foo");
+ Function *Parent = startFunction<int32_t(void)>(M.get(), "Parent");
+ CallInst *Call = Builder.CreateCall(Foo, {});
+ Builder.CreateRet(Call);
+
+ createJIT(std::move(M));
+
+ // Set up the lazy function creator that records the name of the last
+ // unresolved external function found in the module. Using a function pointer
+ // prevents us from capturing local variables, which is why this is static.
+ static std::string UnresolvedExternal;
+ FunctionHandlerPtr UnresolvedHandler = [] (const std::string &str) {
+ UnresolvedExternal = str;
+ return (void *)(uintptr_t)-1;
+ };
+ TheJIT->InstallLazyFunctionCreator(UnresolvedHandler);
+
+ // JIT the module.
+ TheJIT->finalizeObject();
+
+ // Verify that our handler was called.
+ EXPECT_EQ(UnresolvedExternal, "Foo");
+}
- // ensure caller is destroyed before callee (free use before def)
- M.reset();
+TEST_F(MCJITTest, lazy_function_creator_lambda) {
+ SKIP_UNSUPPORTED_PLATFORM;
+
+ Function *Foo1 = insertExternalReferenceToFunction<int32_t(void)>(M.get(),
+ "\1Foo1");
+ Function *Foo2 = insertExternalReferenceToFunction<int32_t(void)>(M.get(),
+ "\1Foo2");
+ Function *Parent = startFunction<int32_t(void)>(M.get(), "Parent");
+ CallInst *Call1 = Builder.CreateCall(Foo1, {});
+ CallInst *Call2 = Builder.CreateCall(Foo2, {});
+ Value *Result = Builder.CreateAdd(Call1, Call2);
+ Builder.CreateRet(Result);
+
+ createJIT(std::move(M));
+
+ // Set up the lazy function creator that records the name of unresolved
+ // external functions in the module.
+ std::vector<std::string> UnresolvedExternals;
+ auto UnresolvedHandler = [&UnresolvedExternals] (const std::string &str) {
+ llvm:dbgs() << "str is '" << str << "'\n";
+ UnresolvedExternals.push_back(str);
+ return (void *)(uintptr_t)-1;
+ };
+ TheJIT->InstallLazyFunctionCreator(UnresolvedHandler);
+
+ // JIT the module.
+ TheJIT->finalizeObject();
+
+ // Verify that our handler was called for each unresolved function.
+ auto I = UnresolvedExternals.begin(), E = UnresolvedExternals.end();
+ EXPECT_EQ(UnresolvedExternals.size(), 2);
+ EXPECT_FALSE(std::find(I, E, "Foo1") == E);
+ EXPECT_FALSE(std::find(I, E, "Foo2") == E);
}
-*/
}
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