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#include "llvm/Target/TargetOptions.h"
#include "llvm/CodeGen/TargetPassConfig.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Target/TargetMachine.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace llvm {
void initializeTestPassPass(PassRegistry &);
}
namespace {
void initLLVM() {
InitializeAllTargets();
InitializeAllTargetMCs();
InitializeAllAsmPrinters();
InitializeAllAsmParsers();
PassRegistry *Registry = PassRegistry::getPassRegistry();
initializeCore(*Registry);
initializeCodeGen(*Registry);
}
/// Create a TargetMachine. We need a target that doesn't have IPRA enabled by
/// default. That turns out to be all targets at the moment, so just use X86.
std::unique_ptr<TargetMachine> createTargetMachine(bool EnableIPRA) {
Triple TargetTriple("x86_64--");
std::string Error;
const Target *T = TargetRegistry::lookupTarget("", TargetTriple, Error);
if (!T)
return nullptr;
TargetOptions Options;
Options.EnableIPRA = EnableIPRA;
return std::unique_ptr<TargetMachine>(T->createTargetMachine(
"X86", "", "", Options, None, None, CodeGenOpt::Aggressive));
}
typedef std::function<void(bool)> TargetOptionsTest;
static void targetOptionsTest(bool EnableIPRA) {
std::unique_ptr<TargetMachine> TM = createTargetMachine(EnableIPRA);
// This test is designed for the X86 backend; stop if it is not available.
if (!TM)
return;
legacy::PassManager PM;
LLVMTargetMachine *LLVMTM = static_cast<LLVMTargetMachine *>(TM.get());
TargetPassConfig *TPC = LLVMTM->createPassConfig(PM);
(void)TPC;
ASSERT_TRUE(TM->Options.EnableIPRA == EnableIPRA);
delete TPC;
}
} // End of anonymous namespace.
TEST(TargetOptionsTest, IPRASetToOff) {
targetOptionsTest(false);
}
TEST(TargetOptionsTest, IPRASetToOn) {
targetOptionsTest(true);
}
int main(int argc, char **argv) {
::testing::InitGoogleTest(&argc, argv);
initLLVM();
return RUN_ALL_TESTS();
}
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