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//===-- TargetTest.cpp ------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "Target.h"
#include <cassert>
#include <memory>
#include "MCTargetDesc/AArch64MCTargetDesc.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/TargetSelect.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
namespace llvm {
namespace exegesis {
void InitializeAArch64ExegesisTarget();
namespace {
using testing::Gt;
using testing::IsEmpty;
using testing::Not;
using testing::NotNull;
constexpr const char kTriple[] = "aarch64-unknown-linux";
class AArch64TargetTest : public ::testing::Test {
protected:
AArch64TargetTest()
: ExegesisTarget_(ExegesisTarget::lookup(Triple(kTriple))) {
EXPECT_THAT(ExegesisTarget_, NotNull());
std::string error;
Target_ = TargetRegistry::lookupTarget(kTriple, error);
EXPECT_THAT(Target_, NotNull());
STI_.reset(
Target_->createMCSubtargetInfo(kTriple, "generic", /*no features*/ ""));
}
static void SetUpTestCase() {
LLVMInitializeAArch64TargetInfo();
LLVMInitializeAArch64Target();
LLVMInitializeAArch64TargetMC();
InitializeAArch64ExegesisTarget();
}
std::vector<MCInst> setRegTo(unsigned Reg, const APInt &Value) {
return ExegesisTarget_->setRegTo(*STI_, Reg, Value);
}
const Target *Target_;
const ExegesisTarget *const ExegesisTarget_;
std::unique_ptr<MCSubtargetInfo> STI_;
};
TEST_F(AArch64TargetTest, SetRegToConstant) {
// The AArch64 target currently doesn't know how to set register values.
const auto Insts = setRegTo(AArch64::X0, APInt());
EXPECT_THAT(Insts, Not(IsEmpty()));
}
TEST_F(AArch64TargetTest, DefaultPfmCounters) {
const std::string Expected = "CPU_CYCLES";
EXPECT_EQ(ExegesisTarget_->getPfmCounters("").CycleCounter, Expected);
EXPECT_EQ(ExegesisTarget_->getPfmCounters("unknown_cpu").CycleCounter,
Expected);
}
} // namespace
} // namespace exegesis
} // namespace llvm
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