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