| 1 | //===-- TargetTest.cpp ------------------------------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "Target.h" |
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| 10 | |
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| 11 | #include <cassert> |
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| 12 | #include <memory> |
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| 13 | |
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| 14 | #include "MCTargetDesc/AArch64MCTargetDesc.h" |
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| 15 | #include "llvm/MC/TargetRegistry.h" |
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| 16 | #include "llvm/Support/TargetSelect.h" |
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| 17 | #include "gmock/gmock.h" |
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| 18 | #include "gtest/gtest.h" |
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| 19 | |
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| 20 | namespace llvm { |
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| 21 | namespace exegesis { |
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| 22 | |
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| 23 | void InitializeAArch64ExegesisTarget(); |
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| 24 | |
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| 25 | namespace { |
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| 26 | |
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| 27 | using testing::IsEmpty; |
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| 28 | using testing::Not; |
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| 29 | using testing::NotNull; |
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| 30 | |
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| 31 | constexpr const char kTriple[] = "aarch64-unknown-linux" ; |
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| 32 | |
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| 33 | class AArch64TargetTest : public ::testing::Test { |
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| 34 | protected: |
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| 35 | AArch64TargetTest() |
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| 36 | : ExegesisTarget_(ExegesisTarget::lookup(TT: Triple(kTriple))) { |
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| 37 | EXPECT_THAT(ExegesisTarget_, NotNull()); |
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| 38 | std::string error; |
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| 39 | Target_ = TargetRegistry::lookupTarget(Triple: kTriple, Error&: error); |
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| 40 | EXPECT_THAT(Target_, NotNull()); |
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| 41 | STI_.reset( |
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| 42 | p: Target_->createMCSubtargetInfo(TheTriple: kTriple, CPU: "generic" , /*no features*/ Features: "" )); |
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| 43 | } |
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| 44 | |
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| 45 | static void SetUpTestCase() { |
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| 46 | LLVMInitializeAArch64TargetInfo(); |
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| 47 | LLVMInitializeAArch64Target(); |
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| 48 | LLVMInitializeAArch64TargetMC(); |
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| 49 | InitializeAArch64ExegesisTarget(); |
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| 50 | } |
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| 51 | |
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| 52 | std::vector<MCInst> setRegTo(unsigned Reg, const APInt &Value) { |
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| 53 | return ExegesisTarget_->setRegTo(STI: *STI_, Reg, Value); |
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| 54 | } |
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| 55 | |
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| 56 | const Target *Target_; |
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| 57 | const ExegesisTarget *const ExegesisTarget_; |
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| 58 | std::unique_ptr<MCSubtargetInfo> STI_; |
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| 59 | }; |
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| 60 | |
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| 61 | TEST_F(AArch64TargetTest, SetRegToConstant) { |
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| 62 | // The AArch64 target currently doesn't know how to set register values. |
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| 63 | const auto Insts = setRegTo(AArch64::X0, APInt()); |
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| 64 | EXPECT_THAT(Insts, Not(IsEmpty())); |
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| 65 | } |
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| 66 | |
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| 67 | TEST_F(AArch64TargetTest, DefaultPfmCounters) { |
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| 68 | const std::string Expected = "CPU_CYCLES" ; |
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| 69 | EXPECT_EQ(ExegesisTarget_->getPfmCounters("" ).CycleCounter, Expected); |
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| 70 | EXPECT_EQ(ExegesisTarget_->getPfmCounters("unknown_cpu" ).CycleCounter, |
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| 71 | Expected); |
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| 72 | } |
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| 73 | |
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| 74 | } // namespace |
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| 75 | } // namespace exegesis |
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| 76 | } // namespace llvm |
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| 77 | |
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