-//===- MCJITTest.cpp - Unit tests for the MCJIT ---------------------------===//
+//===- MCJITTest.cpp - Unit tests for the MCJIT -----------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
//===----------------------------------------------------------------------===//
#include "llvm/ExecutionEngine/MCJIT.h"
+#include "llvm/Support/DynamicLibrary.h"
#include "MCJITTestBase.h"
#include "gtest/gtest.h"
using namespace llvm;
+namespace {
+
class MCJITTest : public testing::Test, public MCJITTestBase {
protected:
-
- virtual void SetUp();
+ void SetUp() override { M.reset(createEmptyModule("<main>")); }
};
-void MCJITTest::SetUp() {
- M.reset(createEmptyModule("<main>"));
-}
-
-namespace {
-
// FIXME: Ensure creating an execution engine does not crash when constructed
// with a null module.
/*
int initialValue = 5;
GlobalValue *Global = insertGlobalInt32(M.get(), "test_global", initialValue);
- createJIT(M.take());
+ createJIT(std::move(M));
void *globalPtr = TheJIT->getPointerToGlobal(Global);
- 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());
+ 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 rc = 6;
Function *Main = insertMainFunction(M.get(), 6);
- createJIT(M.take());
+ 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))ptr;
+ int (*FuncPtr)() = (int(*)())ptr;
int returnCode = FuncPtr();
EXPECT_EQ(returnCode, rc);
}
Value *ReadGlobal = Builder.CreateLoad(GV);
endFunctionWithRet(ReturnGlobal, ReadGlobal);
- createJIT(M.take());
+ createJIT(std::move(M));
uint64_t rgvPtr = TheJIT->getFunctionAddress(ReturnGlobal->getName().str());
EXPECT_TRUE(0 != rgvPtr);
- int32_t(*FuncPtr)(void) = (int32_t(*)(void))rgvPtr;
+ int32_t(*FuncPtr)() = (int32_t(*)())rgvPtr;
EXPECT_EQ(initialNum, FuncPtr())
<< "Invalid value for global returned from JITted function";
}
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());
+ 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))ptr;
+ int32_t(*FuncPtr)() = (int32_t(*)())ptr;
EXPECT_EQ(innerRetVal, FuncPtr())
<< "Incorrect result returned from function";
}
#endif /*!defined(__arm__)*/
+TEST_F(MCJITTest, multiple_decl_lookups) {
+ SKIP_UNSUPPORTED_PLATFORM;
+
+ Function *Foo = insertExternalReferenceToFunction<void(void)>(M.get(), "_exit");
+ createJIT(std::move(M));
+ void *A = TheJIT->getPointerToFunction(Foo);
+ void *B = TheJIT->getPointerToFunction(Foo);
+
+ EXPECT_TRUE(A != nullptr) << "Failed lookup - test not correctly configured.";
+ EXPECT_EQ(A, B) << "Repeat calls to getPointerToFunction fail.";
}
+
+typedef void * (*FunctionHandlerPtr)(const std::string &str);
+
+TEST_F(MCJITTest, lazy_function_creator_pointer) {
+ SKIP_UNSUPPORTED_PLATFORM;
+
+ Function *Foo = insertExternalReferenceToFunction<int32_t(void)>(M.get(),
+ "\1Foo");
+ 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) {
+ // Try to resolve the function in the current process before marking it as
+ // unresolved. This solves an issue on ARM where '__aeabi_*' function names
+ // are passed to this handler.
+ void *symbol =
+ llvm::sys::DynamicLibrary::SearchForAddressOfSymbol(str.c_str());
+ if (symbol) {
+ return symbol;
+ }
+
+ 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");
+}
+
+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");
+ 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) {
+ // Try to resolve the function in the current process before marking it as
+ // unresolved. This solves an issue on ARM where '__aeabi_*' function names
+ // are passed to this handler.
+ void *symbol =
+ llvm::sys::DynamicLibrary::SearchForAddressOfSymbol(str.c_str());
+ if (symbol) {
+ return symbol;
+ }
+ 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(), 2u);
+ EXPECT_FALSE(std::find(I, E, "Foo1") == E);
+ EXPECT_FALSE(std::find(I, E, "Foo2") == E);
+}
+
+} // end anonymous namespace
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