#include "llvm/ExecutionEngine/SectionMemoryManager.h"
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/Support/Alignment.h"
#include "llvm/Support/MemoryBuffer.h"
namespace llvm {
static constexpr const char ModuleID[] = "ExegesisInfoTest";
static constexpr const char FunctionID[] = "foo";
+static const Align kFunctionAlignment(4096);
// Fills the given basic block with register setup code, and returns true if
// all registers could be setup correctly.
ArrayRef<unsigned> LiveIns,
ArrayRef<RegisterValue> RegisterInitialValues,
const FillFunction &Fill, raw_pwrite_stream &AsmStream) {
- std::unique_ptr<LLVMContext> Context = std::make_unique<LLVMContext>();
+ auto Context = std::make_unique<LLVMContext>();
std::unique_ptr<Module> Module =
createModule(Context, TM->createDataLayout());
- std::unique_ptr<MachineModuleInfoWrapperPass> MMIWP =
- std::make_unique<MachineModuleInfoWrapperPass>(TM.get());
+ auto MMIWP = std::make_unique<MachineModuleInfoWrapperPass>(TM.get());
MachineFunction &MF = createVoidVoidPtrMachineFunction(
FunctionID, Module.get(), &MMIWP.get()->getMMI());
+ MF.ensureAlignment(kFunctionAlignment);
// We need to instruct the passes that we're done with SSA and virtual
// registers.
// executable page.
ExecEngine->addObjectFile(std::move(ObjectFileHolder));
// Fetching function bytes.
- FunctionBytes = StringRef(reinterpret_cast<const char *>(
- ExecEngine->getFunctionAddress(FunctionID)),
- CodeSize);
+ const uint64_t FunctionAddress = ExecEngine->getFunctionAddress(FunctionID);
+ assert(isAligned(kFunctionAlignment, FunctionAddress) &&
+ "function is not properly aligned");
+ FunctionBytes =
+ StringRef(reinterpret_cast<const char *>(FunctionAddress), CodeSize);
}
} // namespace exegesis