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//===-- SnippetFileTest.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 "SnippetFile.h"
#include "LlvmState.h"
#include "TestBase.h"
#include "X86InstrInfo.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Testing/Support/SupportHelpers.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
namespace llvm {
namespace exegesis {
void InitializeX86ExegesisTarget();
namespace {
using testing::ElementsAre;
using testing::Eq;
using testing::Property;
using testing::SizeIs;
using testing::UnorderedElementsAre;
using llvm::unittest::TempDir;
class X86SnippetFileTest : public X86TestBase {
protected:
Expected<std::vector<BenchmarkCode>> TestCommon(StringRef Contents) {
TempDir TestDirectory("SnippetFileTestDir", /*Unique*/ true);
SmallString<64> Filename(TestDirectory.path());
sys::path::append(Filename, "snippet.s");
errs() << Filename << "-------\n";
{
std::error_code EC;
raw_fd_ostream FOS(Filename, EC);
FOS << Contents;
EXPECT_FALSE(EC);
}
return readSnippets(State, Filename);
}
};
// FIXME: Refactor these to ../Common/Matchers.h
static auto HasOpcode = [](unsigned Opcode) {
return Property(&MCInst::getOpcode, Eq(Opcode));
};
MATCHER_P2(RegisterInitialValueIs, Reg, Val, "") {
if (arg.Register == Reg &&
arg.Value.getLimitedValue() == static_cast<uint64_t>(Val))
return true;
*result_listener << "expected: {" << Reg << ", " << Val << "} ";
*result_listener << "actual: {" << arg.Register << ", "
<< arg.Value.getLimitedValue() << "}";
return false;
}
MATCHER_P3(MemoryDefinitionIs, Name, Value, Size, "") {
if (arg.second.Value.getLimitedValue() == static_cast<uint64_t>(Value) &&
arg.second.SizeBytes == static_cast<size_t>(Size) && arg.first == Name)
return true;
*result_listener << "expected: {" << Name << ", " << Value << ", " << Size
<< "} ";
*result_listener << "actual: {" << arg.first << ", "
<< arg.second.Value.getLimitedValue() << ", "
<< arg.second.SizeBytes << "}";
return false;
}
MATCHER_P2(MemoryMappingIs, Address, Name, "") {
if (arg.Address == Address && arg.MemoryValueName == Name)
return true;
*result_listener << "expected: {" << Address << ", " << Name << "} ";
*result_listener << "actual: {" << arg.Address << ", " << arg.MemoryValueName
<< "}";
return false;
}
TEST_F(X86SnippetFileTest, Works) {
auto Snippets = TestCommon(R"(
# LLVM-EXEGESIS-DEFREG RAX 0f
# LLVM-EXEGESIS-DEFREG SIL 0
# LLVM-EXEGESIS-LIVEIN RDI
# LLVM-EXEGESIS-LIVEIN DL
incq %rax
)");
EXPECT_FALSE((bool)Snippets.takeError());
ASSERT_THAT(*Snippets, SizeIs(1));
const auto &Snippet = (*Snippets)[0];
ASSERT_THAT(Snippet.Key.Instructions, ElementsAre(HasOpcode(X86::INC64r)));
ASSERT_THAT(Snippet.Key.RegisterInitialValues,
ElementsAre(RegisterInitialValueIs(X86::RAX, 15),
RegisterInitialValueIs(X86::SIL, 0)));
ASSERT_THAT(Snippet.LiveIns, ElementsAre(X86::RDI, X86::DL));
}
TEST_F(X86SnippetFileTest, BadDefregParam) {
auto Error = TestCommon(R"(
# LLVM-EXEGESIS-DEFREG DOESNOEXIST 0
incq %rax
)")
.takeError();
EXPECT_TRUE((bool)Error);
consumeError(std::move(Error));
}
TEST_F(X86SnippetFileTest, NoDefregValue) {
auto Error = TestCommon(R"(
# LLVM-EXEGESIS-DEFREG RAX
incq %rax
)")
.takeError();
EXPECT_TRUE((bool)Error);
consumeError(std::move(Error));
}
TEST_F(X86SnippetFileTest, MissingParam) {
auto Error = TestCommon(R"(
# LLVM-EXEGESIS-LIVEIN
incq %rax
)")
.takeError();
EXPECT_TRUE((bool)Error);
consumeError(std::move(Error));
}
TEST_F(X86SnippetFileTest, NoAsmStreamer) {
auto Snippets = TestCommon(R"(
.cv_fpo_proc foo 4
)");
EXPECT_FALSE((bool)Snippets.takeError());
}
TEST_F(X86SnippetFileTest, MemoryDefinitionTestSingleDef) {
auto Snippets = TestCommon(R"(
# LLVM-EXEGESIS-MEM-DEF test1 4096 ff
# LLVM-EXEGESIS-MEM-MAP test1 65536
# LLVM-EXEGESIS-MEM-MAP test1 131072
movq $8192, %r10
movq (%r10), %r11
)");
EXPECT_FALSE((bool)Snippets.takeError());
ASSERT_THAT(*Snippets, SizeIs(1));
const auto &Snippet = (*Snippets)[0];
ASSERT_THAT(Snippet.Key.MemoryValues,
UnorderedElementsAre(MemoryDefinitionIs("test1", 255, 4096)));
ASSERT_THAT(Snippet.Key.MemoryMappings,
ElementsAre(MemoryMappingIs(65536, "test1"),
MemoryMappingIs(131072, "test1")));
}
TEST_F(X86SnippetFileTest, MemoryDefinitionsTestTwoDef) {
auto Snippets = TestCommon(R"(
# LLVM-EXEGESIS-MEM-DEF test1 4096 ff
# LLVM-EXEGESIS-MEM-DEF test2 4096 100
# LLVM-EXEGESIS-MEM-MAP test1 65536
# LLVM-EXEGESIS-MEM-MAP test2 131072
movq $8192, %r10
movq (%r10), %r11
)");
EXPECT_FALSE((bool)Snippets.takeError());
ASSERT_THAT(*Snippets, SizeIs(1));
const auto &Snippet = (*Snippets)[0];
ASSERT_THAT(Snippet.Key.MemoryValues,
UnorderedElementsAre(MemoryDefinitionIs("test1", 255, 4096),
MemoryDefinitionIs("test2", 256, 4096)));
ASSERT_THAT(Snippet.Key.MemoryMappings,
ElementsAre(MemoryMappingIs(65536, "test1"),
MemoryMappingIs(131072, "test2")));
}
TEST_F(X86SnippetFileTest, MemoryDefinitionMissingParameter) {
auto Error = TestCommon(R"(
# LLVM-EXEGESIS-MEM-DEF test1 4096
)")
.takeError();
EXPECT_TRUE((bool)Error);
consumeError(std::move(Error));
}
TEST_F(X86SnippetFileTest, MemoryMappingMissingParameters) {
auto Error = TestCommon(R"(
# LLVM-EXEGESIS-MEM-MAP test1
)")
.takeError();
EXPECT_TRUE((bool)Error);
consumeError(std::move(Error));
}
TEST_F(X86SnippetFileTest, MemoryMappingNoDefinition) {
auto Error = TestCommon(R"(
# LLVM-EXEGESIS-MEM-MAP test1 65536
)")
.takeError();
EXPECT_TRUE((bool)Error);
consumeError(std::move(Error));
}
TEST_F(X86SnippetFileTest, SnippetAddress) {
auto Snippets = TestCommon(R"(
# LLVM-EXEGESIS-SNIPPET-ADDRESS 10000
)");
ASSERT_TRUE(static_cast<bool>(Snippets));
EXPECT_THAT(*Snippets, SizeIs(1));
const auto &Snippet = (*Snippets)[0];
EXPECT_EQ(Snippet.Key.SnippetAddress, 0x10000);
}
TEST_F(X86SnippetFileTest, LoopRegister) {
auto Snippets = TestCommon(R"(
# LLVM-EXEGESIS-LOOP-REGISTER R11
)");
ASSERT_TRUE(static_cast<bool>(Snippets));
EXPECT_THAT(*Snippets, SizeIs(1));
const auto &Snippet = (*Snippets)[0];
EXPECT_EQ(Snippet.Key.LoopRegister, X86::R11);
}
TEST_F(X86SnippetFileTest, LoopRegisterInvalidRegister) {
auto Error = TestCommon(R"(
# LLVM-EXEGESIS-LOOP-REGISTER INVALID
)")
.takeError();
EXPECT_TRUE(static_cast<bool>(Error));
consumeError(std::move(Error));
}
} // namespace
} // namespace exegesis
} // namespace llvm
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