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ca2e6c5521
llvm-mirror/unittests/ProfileData/InstrProfTest.cpp
Xinliang David Li ca2e6c5521 [PGO] Fix deserialize bug 
Raw function pointer collected by value
profile data may be from external functions
that are not instrumented. They won't have
mapping data to be used by the deserializer.
Force the value to be 0 in this case.

llvm-svn: 265890
2016-04-10 03:32:02 +00:00

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40 KiB
C++
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//===- unittest/ProfileData/InstrProfTest.cpp -------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/IR/Function.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/ProfileData/InstrProfReader.h"
#include "llvm/ProfileData/InstrProfWriter.h"
#include "llvm/Support/Compression.h"
#include "gtest/gtest.h"
#include <cstdarg>
using namespace llvm;
static ::testing::AssertionResult NoError(std::error_code EC) {
if (!EC)
return ::testing::AssertionSuccess();
return ::testing::AssertionFailure() << "error " << EC.value()
<< ": " << EC.message();
}
static ::testing::AssertionResult ErrorEquals(std::error_code Expected,
std::error_code Found) {
if (Expected == Found)
return ::testing::AssertionSuccess();
return ::testing::AssertionFailure() << "error " << Found.value()
<< ": " << Found.message();
}
namespace {
struct InstrProfTest : ::testing::Test {
InstrProfWriter Writer;
std::unique_ptr<IndexedInstrProfReader> Reader;
void SetUp() { Writer.setOutputSparse(false); }
void readProfile(std::unique_ptr<MemoryBuffer> Profile) {
auto ReaderOrErr = IndexedInstrProfReader::create(std::move(Profile));
ASSERT_TRUE(NoError(ReaderOrErr.getError()));
Reader = std::move(ReaderOrErr.get());
}
};
struct SparseInstrProfTest : public InstrProfTest {
void SetUp() { Writer.setOutputSparse(true); }
};
struct MaybeSparseInstrProfTest : public InstrProfTest,
public ::testing::WithParamInterface<bool> {
void SetUp() { Writer.setOutputSparse(GetParam()); }
};
TEST_P(MaybeSparseInstrProfTest, write_and_read_empty_profile) {
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ASSERT_TRUE(Reader->begin() == Reader->end());
}
TEST_P(MaybeSparseInstrProfTest, write_and_read_one_function) {
InstrProfRecord Record("foo", 0x1234, {1, 2, 3, 4});
Writer.addRecord(std::move(Record));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
auto I = Reader->begin(), E = Reader->end();
ASSERT_TRUE(I != E);
ASSERT_EQ(StringRef("foo"), I->Name);
ASSERT_EQ(0x1234U, I->Hash);
ASSERT_EQ(4U, I->Counts.size());
ASSERT_EQ(1U, I->Counts[0]);
ASSERT_EQ(2U, I->Counts[1]);
ASSERT_EQ(3U, I->Counts[2]);
ASSERT_EQ(4U, I->Counts[3]);
ASSERT_TRUE(++I == E);
}
TEST_P(MaybeSparseInstrProfTest, get_instr_prof_record) {
InstrProfRecord Record1("foo", 0x1234, {1, 2});
InstrProfRecord Record2("foo", 0x1235, {3, 4});
Writer.addRecord(std::move(Record1));
Writer.addRecord(std::move(Record2));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ErrorOr<InstrProfRecord> R = Reader->getInstrProfRecord("foo", 0x1234);
ASSERT_TRUE(NoError(R.getError()));
ASSERT_EQ(2U, R->Counts.size());
ASSERT_EQ(1U, R->Counts[0]);
ASSERT_EQ(2U, R->Counts[1]);
R = Reader->getInstrProfRecord("foo", 0x1235);
ASSERT_TRUE(NoError(R.getError()));
ASSERT_EQ(2U, R->Counts.size());
ASSERT_EQ(3U, R->Counts[0]);
ASSERT_EQ(4U, R->Counts[1]);
R = Reader->getInstrProfRecord("foo", 0x5678);
ASSERT_TRUE(ErrorEquals(instrprof_error::hash_mismatch, R.getError()));
R = Reader->getInstrProfRecord("bar", 0x1234);
ASSERT_TRUE(ErrorEquals(instrprof_error::unknown_function, R.getError()));
}
TEST_P(MaybeSparseInstrProfTest, get_function_counts) {
InstrProfRecord Record1("foo", 0x1234, {1, 2});
InstrProfRecord Record2("foo", 0x1235, {3, 4});
Writer.addRecord(std::move(Record1));
Writer.addRecord(std::move(Record2));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
std::vector<uint64_t> Counts;
ASSERT_TRUE(NoError(Reader->getFunctionCounts("foo", 0x1234, Counts)));
ASSERT_EQ(2U, Counts.size());
ASSERT_EQ(1U, Counts[0]);
ASSERT_EQ(2U, Counts[1]);
ASSERT_TRUE(NoError(Reader->getFunctionCounts("foo", 0x1235, Counts)));
ASSERT_EQ(2U, Counts.size());
ASSERT_EQ(3U, Counts[0]);
ASSERT_EQ(4U, Counts[1]);
std::error_code EC;
EC = Reader->getFunctionCounts("foo", 0x5678, Counts);
ASSERT_TRUE(ErrorEquals(instrprof_error::hash_mismatch, EC));
EC = Reader->getFunctionCounts("bar", 0x1234, Counts);
ASSERT_TRUE(ErrorEquals(instrprof_error::unknown_function, EC));
}
// Profile data is copied from general.proftext
TEST_F(InstrProfTest, get_profile_summary) {
InstrProfRecord Record1("func1", 0x1234, {97531});
InstrProfRecord Record2("func2", 0x1234, {0, 0});
InstrProfRecord Record3("func3", 0x1234,
{2305843009213693952, 1152921504606846976,
576460752303423488, 288230376151711744,
144115188075855872, 72057594037927936});
InstrProfRecord Record4("func4", 0x1234, {0});
Writer.addRecord(std::move(Record1));
Writer.addRecord(std::move(Record2));
Writer.addRecord(std::move(Record3));
Writer.addRecord(std::move(Record4));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
auto VerifySummary = [](InstrProfSummary &IPS) mutable {
ASSERT_EQ(2305843009213693952U, IPS.getMaxFunctionCount());
ASSERT_EQ(2305843009213693952U, IPS.getMaxBlockCount());
ASSERT_EQ(10U, IPS.getNumBlocks());
ASSERT_EQ(4539628424389557499U, IPS.getTotalCount());
std::vector<ProfileSummaryEntry> &Details = IPS.getDetailedSummary();
uint32_t Cutoff = 800000;
auto Predicate = [&Cutoff](const ProfileSummaryEntry &PE) {
return PE.Cutoff == Cutoff;
};
auto EightyPerc = std::find_if(Details.begin(), Details.end(), Predicate);
Cutoff = 900000;
auto NinetyPerc = std::find_if(Details.begin(), Details.end(), Predicate);
Cutoff = 950000;
auto NinetyFivePerc =
std::find_if(Details.begin(), Details.end(), Predicate);
Cutoff = 990000;
auto NinetyNinePerc =
std::find_if(Details.begin(), Details.end(), Predicate);
ASSERT_EQ(576460752303423488U, EightyPerc->MinCount);
ASSERT_EQ(288230376151711744U, NinetyPerc->MinCount);
ASSERT_EQ(288230376151711744U, NinetyFivePerc->MinCount);
ASSERT_EQ(72057594037927936U, NinetyNinePerc->MinCount);
};
InstrProfSummary &PS = Reader->getSummary();
VerifySummary(PS);
// Test that conversion of summary to and from Metadata works.
Metadata *MD = PS.getMD(getGlobalContext());
ASSERT_TRUE(MD);
ProfileSummary *PSFromMD = ProfileSummary::getFromMD(MD);
ASSERT_TRUE(PSFromMD);
ASSERT_TRUE(isa<InstrProfSummary>(PSFromMD));
InstrProfSummary *IPS = cast<InstrProfSummary>(PSFromMD);
VerifySummary(*IPS);
delete IPS;
// Test that summary can be attached to and read back from module.
Module M("my_module", getGlobalContext());
M.setProfileSummary(MD);
MD = M.getProfileSummary();
ASSERT_TRUE(MD);
PSFromMD = ProfileSummary::getFromMD(MD);
ASSERT_TRUE(PSFromMD);
ASSERT_TRUE(isa<InstrProfSummary>(PSFromMD));
IPS = cast<InstrProfSummary>(PSFromMD);
VerifySummary(*IPS);
delete IPS;
}
static const char callee1[] = "callee1";
static const char callee2[] = "callee2";
static const char callee3[] = "callee3";
static const char callee4[] = "callee4";
static const char callee5[] = "callee5";
static const char callee6[] = "callee6";
TEST_P(MaybeSparseInstrProfTest, get_icall_data_read_write) {
InstrProfRecord Record1("caller", 0x1234, {1, 2});
InstrProfRecord Record2("callee1", 0x1235, {3, 4});
InstrProfRecord Record3("callee2", 0x1235, {3, 4});
InstrProfRecord Record4("callee3", 0x1235, {3, 4});
// 4 value sites.
Record1.reserveSites(IPVK_IndirectCallTarget, 4);
InstrProfValueData VD0[] = {
{(uint64_t)callee1, 1}, {(uint64_t)callee2, 2}, {(uint64_t)callee3, 3}};
Record1.addValueData(IPVK_IndirectCallTarget, 0, VD0, 3, nullptr);
// No value profile data at the second site.
Record1.addValueData(IPVK_IndirectCallTarget, 1, nullptr, 0, nullptr);
InstrProfValueData VD2[] = {{(uint64_t)callee1, 1}, {(uint64_t)callee2, 2}};
Record1.addValueData(IPVK_IndirectCallTarget, 2, VD2, 2, nullptr);
InstrProfValueData VD3[] = {{(uint64_t)callee1, 1}};
Record1.addValueData(IPVK_IndirectCallTarget, 3, VD3, 1, nullptr);
Writer.addRecord(std::move(Record1));
Writer.addRecord(std::move(Record2));
Writer.addRecord(std::move(Record3));
Writer.addRecord(std::move(Record4));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ErrorOr<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.getError()));
ASSERT_EQ(4U, R->getNumValueSites(IPVK_IndirectCallTarget));
ASSERT_EQ(3U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 0));
ASSERT_EQ(0U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 1));
ASSERT_EQ(2U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 2));
ASSERT_EQ(1U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 3));
uint64_t TotalC;
std::unique_ptr<InstrProfValueData[]> VD =
R->getValueForSite(IPVK_IndirectCallTarget, 0, &TotalC);
ASSERT_EQ(3U, VD[0].Count);
ASSERT_EQ(2U, VD[1].Count);
ASSERT_EQ(1U, VD[2].Count);
ASSERT_EQ(6U, TotalC);
ASSERT_EQ(StringRef((const char *)VD[0].Value, 7), StringRef("callee3"));
ASSERT_EQ(StringRef((const char *)VD[1].Value, 7), StringRef("callee2"));
ASSERT_EQ(StringRef((const char *)VD[2].Value, 7), StringRef("callee1"));
}
TEST_P(MaybeSparseInstrProfTest, annotate_vp_data) {
InstrProfRecord Record("caller", 0x1234, {1, 2});
Record.reserveSites(IPVK_IndirectCallTarget, 1);
InstrProfValueData VD0[] = {{1000, 1}, {2000, 2}, {3000, 3}, {5000, 5},
{4000, 4}, {6000, 6}};
Record.addValueData(IPVK_IndirectCallTarget, 0, VD0, 6, nullptr);
Writer.addRecord(std::move(Record));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ErrorOr<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.getError()));
LLVMContext Ctx;
std::unique_ptr<Module> M(new Module("MyModule", Ctx));
FunctionType *FTy = FunctionType::get(Type::getVoidTy(Ctx),
/*isVarArg=*/false);
Function *F =
Function::Create(FTy, Function::ExternalLinkage, "caller", M.get());
BasicBlock *BB = BasicBlock::Create(Ctx, "", F);
IRBuilder<> Builder(BB);
BasicBlock *TBB = BasicBlock::Create(Ctx, "", F);
BasicBlock *FBB = BasicBlock::Create(Ctx, "", F);
// Use branch instruction to annotate with value profile data for simplicity
Instruction *Inst = Builder.CreateCondBr(Builder.getTrue(), TBB, FBB);
Instruction *Inst2 = Builder.CreateCondBr(Builder.getTrue(), TBB, FBB);
annotateValueSite(*M, *Inst, R.get(), IPVK_IndirectCallTarget, 0);
InstrProfValueData ValueData[5];
uint32_t N;
uint64_t T;
bool Res = getValueProfDataFromInst(*Inst, IPVK_IndirectCallTarget, 5,
ValueData, N, T);
ASSERT_TRUE(Res);
ASSERT_EQ(3U, N);
ASSERT_EQ(21U, T);
// The result should be sorted already:
ASSERT_EQ(6000U, ValueData[0].Value);
ASSERT_EQ(6U, ValueData[0].Count);
ASSERT_EQ(5000U, ValueData[1].Value);
ASSERT_EQ(5U, ValueData[1].Count);
ASSERT_EQ(4000U, ValueData[2].Value);
ASSERT_EQ(4U, ValueData[2].Count);
Res = getValueProfDataFromInst(*Inst, IPVK_IndirectCallTarget, 1, ValueData,
N, T);
ASSERT_TRUE(Res);
ASSERT_EQ(1U, N);
ASSERT_EQ(21U, T);
Res = getValueProfDataFromInst(*Inst2, IPVK_IndirectCallTarget, 5, ValueData,
N, T);
ASSERT_FALSE(Res);
// Remove the MD_prof metadata
Inst->setMetadata(LLVMContext::MD_prof, 0);
// Annotate 5 records this time.
annotateValueSite(*M, *Inst, R.get(), IPVK_IndirectCallTarget, 0, 5);
Res = getValueProfDataFromInst(*Inst, IPVK_IndirectCallTarget, 5,
ValueData, N, T);
ASSERT_TRUE(Res);
ASSERT_EQ(5U, N);
ASSERT_EQ(21U, T);
ASSERT_EQ(6000U, ValueData[0].Value);
ASSERT_EQ(6U, ValueData[0].Count);
ASSERT_EQ(5000U, ValueData[1].Value);
ASSERT_EQ(5U, ValueData[1].Count);
ASSERT_EQ(4000U, ValueData[2].Value);
ASSERT_EQ(4U, ValueData[2].Count);
ASSERT_EQ(3000U, ValueData[3].Value);
ASSERT_EQ(3U, ValueData[3].Count);
ASSERT_EQ(2000U, ValueData[4].Value);
ASSERT_EQ(2U, ValueData[4].Count);
// Remove the MD_prof metadata
Inst->setMetadata(LLVMContext::MD_prof, 0);
// Annotate with 4 records.
InstrProfValueData VD0Sorted[] = {{1000, 6}, {2000, 5}, {3000, 4}, {4000, 3},
{5000, 2}, {6000, 1}};
annotateValueSite(*M, *Inst, makeArrayRef(VD0Sorted).slice(2), 10,
IPVK_IndirectCallTarget, 5);
Res = getValueProfDataFromInst(*Inst, IPVK_IndirectCallTarget, 5,
ValueData, N, T);
ASSERT_TRUE(Res);
ASSERT_EQ(4U, N);
ASSERT_EQ(10U, T);
ASSERT_EQ(3000U, ValueData[0].Value);
ASSERT_EQ(4U, ValueData[0].Count);
ASSERT_EQ(4000U, ValueData[1].Value);
ASSERT_EQ(3U, ValueData[1].Count);
ASSERT_EQ(5000U, ValueData[2].Value);
ASSERT_EQ(2U, ValueData[2].Count);
ASSERT_EQ(6000U, ValueData[3].Value);
ASSERT_EQ(1U, ValueData[3].Count);
}
TEST_P(MaybeSparseInstrProfTest, get_icall_data_read_write_with_weight) {
InstrProfRecord Record1("caller", 0x1234, {1, 2});
InstrProfRecord Record2("callee1", 0x1235, {3, 4});
InstrProfRecord Record3("callee2", 0x1235, {3, 4});
InstrProfRecord Record4("callee3", 0x1235, {3, 4});
// 4 value sites.
Record1.reserveSites(IPVK_IndirectCallTarget, 4);
InstrProfValueData VD0[] = {
{(uint64_t)callee1, 1}, {(uint64_t)callee2, 2}, {(uint64_t)callee3, 3}};
Record1.addValueData(IPVK_IndirectCallTarget, 0, VD0, 3, nullptr);
// No value profile data at the second site.
Record1.addValueData(IPVK_IndirectCallTarget, 1, nullptr, 0, nullptr);
InstrProfValueData VD2[] = {{(uint64_t)callee1, 1}, {(uint64_t)callee2, 2}};
Record1.addValueData(IPVK_IndirectCallTarget, 2, VD2, 2, nullptr);
InstrProfValueData VD3[] = {{(uint64_t)callee1, 1}};
Record1.addValueData(IPVK_IndirectCallTarget, 3, VD3, 1, nullptr);
Writer.addRecord(std::move(Record1), 10);
Writer.addRecord(std::move(Record2));
Writer.addRecord(std::move(Record3));
Writer.addRecord(std::move(Record4));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ErrorOr<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.getError()));
ASSERT_EQ(4U, R->getNumValueSites(IPVK_IndirectCallTarget));
ASSERT_EQ(3U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 0));
ASSERT_EQ(0U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 1));
ASSERT_EQ(2U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 2));
ASSERT_EQ(1U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 3));
uint64_t TotalC;
std::unique_ptr<InstrProfValueData[]> VD =
R->getValueForSite(IPVK_IndirectCallTarget, 0, &TotalC);
ASSERT_EQ(30U, VD[0].Count);
ASSERT_EQ(20U, VD[1].Count);
ASSERT_EQ(10U, VD[2].Count);
ASSERT_EQ(60U, TotalC);
ASSERT_EQ(StringRef((const char *)VD[0].Value, 7), StringRef("callee3"));
ASSERT_EQ(StringRef((const char *)VD[1].Value, 7), StringRef("callee2"));
ASSERT_EQ(StringRef((const char *)VD[2].Value, 7), StringRef("callee1"));
}
TEST_P(MaybeSparseInstrProfTest, get_icall_data_read_write_big_endian) {
InstrProfRecord Record1("caller", 0x1234, {1, 2});
InstrProfRecord Record2("callee1", 0x1235, {3, 4});
InstrProfRecord Record3("callee2", 0x1235, {3, 4});
InstrProfRecord Record4("callee3", 0x1235, {3, 4});
// 4 value sites.
Record1.reserveSites(IPVK_IndirectCallTarget, 4);
InstrProfValueData VD0[] = {
{(uint64_t)callee1, 1}, {(uint64_t)callee2, 2}, {(uint64_t)callee3, 3}};
Record1.addValueData(IPVK_IndirectCallTarget, 0, VD0, 3, nullptr);
// No value profile data at the second site.
Record1.addValueData(IPVK_IndirectCallTarget, 1, nullptr, 0, nullptr);
InstrProfValueData VD2[] = {{(uint64_t)callee1, 1}, {(uint64_t)callee2, 2}};
Record1.addValueData(IPVK_IndirectCallTarget, 2, VD2, 2, nullptr);
InstrProfValueData VD3[] = {{(uint64_t)callee1, 1}};
Record1.addValueData(IPVK_IndirectCallTarget, 3, VD3, 1, nullptr);
Writer.addRecord(std::move(Record1));
Writer.addRecord(std::move(Record2));
Writer.addRecord(std::move(Record3));
Writer.addRecord(std::move(Record4));
// Set big endian output.
Writer.setValueProfDataEndianness(support::big);
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
// Set big endian input.
Reader->setValueProfDataEndianness(support::big);
ErrorOr<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.getError()));
ASSERT_EQ(4U, R->getNumValueSites(IPVK_IndirectCallTarget));
ASSERT_EQ(3U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 0));
ASSERT_EQ(0U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 1));
ASSERT_EQ(2U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 2));
ASSERT_EQ(1U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 3));
std::unique_ptr<InstrProfValueData[]> VD =
R->getValueForSite(IPVK_IndirectCallTarget, 0);
ASSERT_EQ(StringRef((const char *)VD[0].Value, 7), StringRef("callee3"));
ASSERT_EQ(StringRef((const char *)VD[1].Value, 7), StringRef("callee2"));
ASSERT_EQ(StringRef((const char *)VD[2].Value, 7), StringRef("callee1"));
// Restore little endian default:
Writer.setValueProfDataEndianness(support::little);
}
TEST_P(MaybeSparseInstrProfTest, get_icall_data_merge1) {
static const char caller[] = "caller";
InstrProfRecord Record11(caller, 0x1234, {1, 2});
InstrProfRecord Record12(caller, 0x1234, {1, 2});
InstrProfRecord Record2(callee1, 0x1235, {3, 4});
InstrProfRecord Record3(callee2, 0x1235, {3, 4});
InstrProfRecord Record4(callee3, 0x1235, {3, 4});
InstrProfRecord Record5(callee3, 0x1235, {3, 4});
InstrProfRecord Record6(callee4, 0x1235, {3, 5});
// 5 value sites.
Record11.reserveSites(IPVK_IndirectCallTarget, 5);
InstrProfValueData VD0[] = {{uint64_t(callee1), 1},
{uint64_t(callee2), 2},
{uint64_t(callee3), 3},
{uint64_t(callee4), 4}};
Record11.addValueData(IPVK_IndirectCallTarget, 0, VD0, 4, nullptr);
// No value profile data at the second site.
Record11.addValueData(IPVK_IndirectCallTarget, 1, nullptr, 0, nullptr);
InstrProfValueData VD2[] = {
{uint64_t(callee1), 1}, {uint64_t(callee2), 2}, {uint64_t(callee3), 3}};
Record11.addValueData(IPVK_IndirectCallTarget, 2, VD2, 3, nullptr);
InstrProfValueData VD3[] = {{uint64_t(callee1), 1}};
Record11.addValueData(IPVK_IndirectCallTarget, 3, VD3, 1, nullptr);
InstrProfValueData VD4[] = {{uint64_t(callee1), 1},
{uint64_t(callee2), 2},
{uint64_t(callee3), 3}};
Record11.addValueData(IPVK_IndirectCallTarget, 4, VD4, 3, nullptr);
// A differnt record for the same caller.
Record12.reserveSites(IPVK_IndirectCallTarget, 5);
InstrProfValueData VD02[] = {{uint64_t(callee2), 5}, {uint64_t(callee3), 3}};
Record12.addValueData(IPVK_IndirectCallTarget, 0, VD02, 2, nullptr);
// No value profile data at the second site.
Record12.addValueData(IPVK_IndirectCallTarget, 1, nullptr, 0, nullptr);
InstrProfValueData VD22[] = {
{uint64_t(callee2), 1}, {uint64_t(callee3), 3}, {uint64_t(callee4), 4}};
Record12.addValueData(IPVK_IndirectCallTarget, 2, VD22, 3, nullptr);
Record12.addValueData(IPVK_IndirectCallTarget, 3, nullptr, 0, nullptr);
InstrProfValueData VD42[] = {{uint64_t(callee1), 1},
{uint64_t(callee2), 2},
{uint64_t(callee3), 3}};
Record12.addValueData(IPVK_IndirectCallTarget, 4, VD42, 3, nullptr);
Writer.addRecord(std::move(Record11));
// Merge profile data.
Writer.addRecord(std::move(Record12));
Writer.addRecord(std::move(Record2));
Writer.addRecord(std::move(Record3));
Writer.addRecord(std::move(Record4));
Writer.addRecord(std::move(Record5));
Writer.addRecord(std::move(Record6));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ErrorOr<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.getError()));
ASSERT_EQ(5U, R->getNumValueSites(IPVK_IndirectCallTarget));
ASSERT_EQ(4U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 0));
ASSERT_EQ(0U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 1));
ASSERT_EQ(4U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 2));
ASSERT_EQ(1U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 3));
ASSERT_EQ(3U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 4));
std::unique_ptr<InstrProfValueData[]> VD =
R->getValueForSite(IPVK_IndirectCallTarget, 0);
ASSERT_EQ(StringRef((const char *)VD[0].Value, 7), StringRef("callee2"));
ASSERT_EQ(7U, VD[0].Count);
ASSERT_EQ(StringRef((const char *)VD[1].Value, 7), StringRef("callee3"));
ASSERT_EQ(6U, VD[1].Count);
ASSERT_EQ(StringRef((const char *)VD[2].Value, 7), StringRef("callee4"));
ASSERT_EQ(4U, VD[2].Count);
ASSERT_EQ(StringRef((const char *)VD[3].Value, 7), StringRef("callee1"));
ASSERT_EQ(1U, VD[3].Count);
std::unique_ptr<InstrProfValueData[]> VD_2(
R->getValueForSite(IPVK_IndirectCallTarget, 2));
ASSERT_EQ(StringRef((const char *)VD_2[0].Value, 7), StringRef("callee3"));
ASSERT_EQ(6U, VD_2[0].Count);
ASSERT_EQ(StringRef((const char *)VD_2[1].Value, 7), StringRef("callee4"));
ASSERT_EQ(4U, VD_2[1].Count);
ASSERT_EQ(StringRef((const char *)VD_2[2].Value, 7), StringRef("callee2"));
ASSERT_EQ(3U, VD_2[2].Count);
ASSERT_EQ(StringRef((const char *)VD_2[3].Value, 7), StringRef("callee1"));
ASSERT_EQ(1U, VD_2[3].Count);
std::unique_ptr<InstrProfValueData[]> VD_3(
R->getValueForSite(IPVK_IndirectCallTarget, 3));
ASSERT_EQ(StringRef((const char *)VD_3[0].Value, 7), StringRef("callee1"));
ASSERT_EQ(1U, VD_3[0].Count);
std::unique_ptr<InstrProfValueData[]> VD_4(
R->getValueForSite(IPVK_IndirectCallTarget, 4));
ASSERT_EQ(StringRef((const char *)VD_4[0].Value, 7), StringRef("callee3"));
ASSERT_EQ(6U, VD_4[0].Count);
ASSERT_EQ(StringRef((const char *)VD_4[1].Value, 7), StringRef("callee2"));
ASSERT_EQ(4U, VD_4[1].Count);
ASSERT_EQ(StringRef((const char *)VD_4[2].Value, 7), StringRef("callee1"));
ASSERT_EQ(2U, VD_4[2].Count);
}
TEST_P(MaybeSparseInstrProfTest, get_icall_data_merge1_saturation) {
static const char bar[] = "bar";
const uint64_t Max = std::numeric_limits<uint64_t>::max();
InstrProfRecord Record1("foo", 0x1234, {1});
auto Result1 = Writer.addRecord(std::move(Record1));
ASSERT_EQ(Result1, instrprof_error::success);
// Verify counter overflow.
InstrProfRecord Record2("foo", 0x1234, {Max});
auto Result2 = Writer.addRecord(std::move(Record2));
ASSERT_EQ(Result2, instrprof_error::counter_overflow);
InstrProfRecord Record3(bar, 0x9012, {8});
auto Result3 = Writer.addRecord(std::move(Record3));
ASSERT_EQ(Result3, instrprof_error::success);
InstrProfRecord Record4("baz", 0x5678, {3, 4});
Record4.reserveSites(IPVK_IndirectCallTarget, 1);
InstrProfValueData VD4[] = {{uint64_t(bar), 1}};
Record4.addValueData(IPVK_IndirectCallTarget, 0, VD4, 1, nullptr);
auto Result4 = Writer.addRecord(std::move(Record4));
ASSERT_EQ(Result4, instrprof_error::success);
// Verify value data counter overflow.
InstrProfRecord Record5("baz", 0x5678, {5, 6});
Record5.reserveSites(IPVK_IndirectCallTarget, 1);
InstrProfValueData VD5[] = {{uint64_t(bar), Max}};
Record5.addValueData(IPVK_IndirectCallTarget, 0, VD5, 1, nullptr);
auto Result5 = Writer.addRecord(std::move(Record5));
ASSERT_EQ(Result5, instrprof_error::counter_overflow);
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
// Verify saturation of counts.
ErrorOr<InstrProfRecord> ReadRecord1 =
Reader->getInstrProfRecord("foo", 0x1234);
ASSERT_TRUE(NoError(ReadRecord1.getError()));
ASSERT_EQ(Max, ReadRecord1->Counts[0]);
ErrorOr<InstrProfRecord> ReadRecord2 =
Reader->getInstrProfRecord("baz", 0x5678);
ASSERT_EQ(1U, ReadRecord2->getNumValueSites(IPVK_IndirectCallTarget));
std::unique_ptr<InstrProfValueData[]> VD =
ReadRecord2->getValueForSite(IPVK_IndirectCallTarget, 0);
ASSERT_EQ(StringRef("bar"), StringRef((const char *)VD[0].Value, 3));
ASSERT_EQ(Max, VD[0].Count);
}
// This test tests that when there are too many values
// for a given site, the merged results are properly
// truncated.
TEST_P(MaybeSparseInstrProfTest, get_icall_data_merge_site_trunc) {
static const char caller[] = "caller";
InstrProfRecord Record11(caller, 0x1234, {1, 2});
InstrProfRecord Record12(caller, 0x1234, {1, 2});
// 2 value sites.
Record11.reserveSites(IPVK_IndirectCallTarget, 2);
InstrProfValueData VD0[255];
for (int I = 0; I < 255; I++) {
VD0[I].Value = 2 * I;
VD0[I].Count = 2 * I + 1000;
}
Record11.addValueData(IPVK_IndirectCallTarget, 0, VD0, 255, nullptr);
Record11.addValueData(IPVK_IndirectCallTarget, 1, nullptr, 0, nullptr);
Record12.reserveSites(IPVK_IndirectCallTarget, 2);
InstrProfValueData VD1[255];
for (int I = 0; I < 255; I++) {
VD1[I].Value = 2 * I + 1;
VD1[I].Count = 2 * I + 1001;
}
Record12.addValueData(IPVK_IndirectCallTarget, 0, VD1, 255, nullptr);
Record12.addValueData(IPVK_IndirectCallTarget, 1, nullptr, 0, nullptr);
Writer.addRecord(std::move(Record11));
// Merge profile data.
Writer.addRecord(std::move(Record12));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ErrorOr<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.getError()));
std::unique_ptr<InstrProfValueData[]> VD(
R->getValueForSite(IPVK_IndirectCallTarget, 0));
ASSERT_EQ(2U, R->getNumValueSites(IPVK_IndirectCallTarget));
ASSERT_EQ(255U, R->getNumValueDataForSite(IPVK_IndirectCallTarget, 0));
for (unsigned I = 0; I < 255; I++) {
ASSERT_EQ(VD[I].Value, 509 - I);
ASSERT_EQ(VD[I].Count, 1509 - I);
}
}
// Synthesize runtime value profile data.
ValueProfNode Site1Values[5] = {{{uint64_t(callee1), 400}, &Site1Values[1]},
{{uint64_t(callee2), 1000}, &Site1Values[2]},
{{uint64_t(callee3), 500}, &Site1Values[3]},
{{uint64_t(callee4), 300}, &Site1Values[4]},
{{uint64_t(callee5), 100}, nullptr}};
ValueProfNode Site2Values[4] = {{{uint64_t(callee5), 800}, &Site2Values[1]},
{{uint64_t(callee3), 1000}, &Site2Values[2]},
{{uint64_t(callee2), 2500}, &Site2Values[3]},
{{uint64_t(callee1), 1300}, nullptr}};
ValueProfNode Site3Values[3] = {{{uint64_t(callee6), 800}, &Site3Values[1]},
{{uint64_t(callee3), 1000}, &Site3Values[2]},
{{uint64_t(callee4), 5500}, nullptr}};
ValueProfNode Site4Values[2] = {{{uint64_t(callee2), 1800}, &Site4Values[1]},
{{uint64_t(callee3), 2000}, nullptr}};
static ValueProfNode *ValueProfNodes[5] = {&Site1Values[0], &Site2Values[0],
&Site3Values[0], &Site4Values[0],
nullptr};
static uint16_t NumValueSites[IPVK_Last + 1] = {5};
TEST_P(MaybeSparseInstrProfTest, runtime_value_prof_data_read_write) {
ValueProfRuntimeRecord RTRecord;
initializeValueProfRuntimeRecord(&RTRecord, &NumValueSites[0],
&ValueProfNodes[0]);
ValueProfData *VPData = serializeValueProfDataFromRT(&RTRecord, nullptr);
InstrProfRecord Record("caller", 0x1234, {1ULL << 31, 2});
VPData->deserializeTo(Record, nullptr);
// Now read data from Record and sanity check the data
ASSERT_EQ(5U, Record.getNumValueSites(IPVK_IndirectCallTarget));
ASSERT_EQ(5U, Record.getNumValueDataForSite(IPVK_IndirectCallTarget, 0));
ASSERT_EQ(4U, Record.getNumValueDataForSite(IPVK_IndirectCallTarget, 1));
ASSERT_EQ(3U, Record.getNumValueDataForSite(IPVK_IndirectCallTarget, 2));
ASSERT_EQ(2U, Record.getNumValueDataForSite(IPVK_IndirectCallTarget, 3));
ASSERT_EQ(0U, Record.getNumValueDataForSite(IPVK_IndirectCallTarget, 4));
auto Cmp = [](const InstrProfValueData &VD1, const InstrProfValueData &VD2) {
return VD1.Count > VD2.Count;
};
std::unique_ptr<InstrProfValueData[]> VD_0(
Record.getValueForSite(IPVK_IndirectCallTarget, 0));
std::sort(&VD_0[0], &VD_0[5], Cmp);
ASSERT_EQ(StringRef((const char *)VD_0[0].Value, 7), StringRef("callee2"));
ASSERT_EQ(1000U, VD_0[0].Count);
ASSERT_EQ(StringRef((const char *)VD_0[1].Value, 7), StringRef("callee3"));
ASSERT_EQ(500U, VD_0[1].Count);
ASSERT_EQ(StringRef((const char *)VD_0[2].Value, 7), StringRef("callee1"));
ASSERT_EQ(400U, VD_0[2].Count);
ASSERT_EQ(StringRef((const char *)VD_0[3].Value, 7), StringRef("callee4"));
ASSERT_EQ(300U, VD_0[3].Count);
ASSERT_EQ(StringRef((const char *)VD_0[4].Value, 7), StringRef("callee5"));
ASSERT_EQ(100U, VD_0[4].Count);
std::unique_ptr<InstrProfValueData[]> VD_1(
Record.getValueForSite(IPVK_IndirectCallTarget, 1));
std::sort(&VD_1[0], &VD_1[4], Cmp);
ASSERT_EQ(StringRef((const char *)VD_1[0].Value, 7), StringRef("callee2"));
ASSERT_EQ(2500U, VD_1[0].Count);
ASSERT_EQ(StringRef((const char *)VD_1[1].Value, 7), StringRef("callee1"));
ASSERT_EQ(1300U, VD_1[1].Count);
ASSERT_EQ(StringRef((const char *)VD_1[2].Value, 7), StringRef("callee3"));
ASSERT_EQ(1000U, VD_1[2].Count);
ASSERT_EQ(StringRef((const char *)VD_1[3].Value, 7), StringRef("callee5"));
ASSERT_EQ(800U, VD_1[3].Count);
std::unique_ptr<InstrProfValueData[]> VD_2(
Record.getValueForSite(IPVK_IndirectCallTarget, 2));
std::sort(&VD_2[0], &VD_2[3], Cmp);
ASSERT_EQ(StringRef((const char *)VD_2[0].Value, 7), StringRef("callee4"));
ASSERT_EQ(5500U, VD_2[0].Count);
ASSERT_EQ(StringRef((const char *)VD_2[1].Value, 7), StringRef("callee3"));
ASSERT_EQ(1000U, VD_2[1].Count);
ASSERT_EQ(StringRef((const char *)VD_2[2].Value, 7), StringRef("callee6"));
ASSERT_EQ(800U, VD_2[2].Count);
std::unique_ptr<InstrProfValueData[]> VD_3(
Record.getValueForSite(IPVK_IndirectCallTarget, 3));
std::sort(&VD_3[0], &VD_3[2], Cmp);
ASSERT_EQ(StringRef((const char *)VD_3[0].Value, 7), StringRef("callee3"));
ASSERT_EQ(2000U, VD_3[0].Count);
ASSERT_EQ(StringRef((const char *)VD_3[1].Value, 7), StringRef("callee2"));
ASSERT_EQ(1800U, VD_3[1].Count);
finalizeValueProfRuntimeRecord(&RTRecord);
free(VPData);
}
static uint16_t NumValueSites2[IPVK_Last + 1] = {1};
TEST_P(MaybeSparseInstrProfTest, runtime_value_prof_data_read_write_mapping) {
ValueProfRuntimeRecord RTRecord;
initializeValueProfRuntimeRecord(&RTRecord, &NumValueSites2[0],
&ValueProfNodes[0]);
ValueProfData *VPData = serializeValueProfDataFromRT(&RTRecord, nullptr);
InstrProfRecord Record("caller", 0x1234, {1ULL << 31, 2});
InstrProfSymtab Symtab;
Symtab.mapAddress(uint64_t(callee1), 0x1000ULL);
Symtab.mapAddress(uint64_t(callee2), 0x2000ULL);
Symtab.mapAddress(uint64_t(callee3), 0x3000ULL);
Symtab.mapAddress(uint64_t(callee4), 0x4000ULL);
// Missing mapping for callee5
Symtab.finalizeSymtab();
VPData->deserializeTo(Record, &Symtab.getAddrHashMap());
// Now read data from Record and sanity check the data
ASSERT_EQ(1U, Record.getNumValueSites(IPVK_IndirectCallTarget));
ASSERT_EQ(5U, Record.getNumValueDataForSite(IPVK_IndirectCallTarget, 0));
auto Cmp = [](const InstrProfValueData &VD1, const InstrProfValueData &VD2) {
return VD1.Count > VD2.Count;
};
std::unique_ptr<InstrProfValueData[]> VD_0(
Record.getValueForSite(IPVK_IndirectCallTarget, 0));
std::sort(&VD_0[0], &VD_0[5], Cmp);
ASSERT_EQ(VD_0[0].Value, 0x2000ULL);
ASSERT_EQ(1000U, VD_0[0].Count);
ASSERT_EQ(VD_0[1].Value, 0x3000ULL);
ASSERT_EQ(500U, VD_0[1].Count);
ASSERT_EQ(VD_0[2].Value, 0x1000ULL);
ASSERT_EQ(400U, VD_0[2].Count);
// callee5 does not have a mapped value -- default to 0.
ASSERT_EQ(VD_0[4].Value, 0ULL);
}
TEST_P(MaybeSparseInstrProfTest, get_max_function_count) {
InstrProfRecord Record1("foo", 0x1234, {1ULL << 31, 2});
InstrProfRecord Record2("bar", 0, {1ULL << 63});
InstrProfRecord Record3("baz", 0x5678, {0, 0, 0, 0});
Writer.addRecord(std::move(Record1));
Writer.addRecord(std::move(Record2));
Writer.addRecord(std::move(Record3));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ASSERT_EQ(1ULL << 63, Reader->getMaximumFunctionCount());
}
TEST_P(MaybeSparseInstrProfTest, get_weighted_function_counts) {
InstrProfRecord Record1("foo", 0x1234, {1, 2});
InstrProfRecord Record2("foo", 0x1235, {3, 4});
Writer.addRecord(std::move(Record1), 3);
Writer.addRecord(std::move(Record2), 5);
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
std::vector<uint64_t> Counts;
ASSERT_TRUE(NoError(Reader->getFunctionCounts("foo", 0x1234, Counts)));
ASSERT_EQ(2U, Counts.size());
ASSERT_EQ(3U, Counts[0]);
ASSERT_EQ(6U, Counts[1]);
ASSERT_TRUE(NoError(Reader->getFunctionCounts("foo", 0x1235, Counts)));
ASSERT_EQ(2U, Counts.size());
ASSERT_EQ(15U, Counts[0]);
ASSERT_EQ(20U, Counts[1]);
}
// Testing symtab creator interface used by indexed profile reader.
TEST_P(MaybeSparseInstrProfTest, instr_prof_symtab_test) {
std::vector<StringRef> FuncNames;
FuncNames.push_back("func1");
FuncNames.push_back("func2");
FuncNames.push_back("func3");
FuncNames.push_back("bar1");
FuncNames.push_back("bar2");
FuncNames.push_back("bar3");
InstrProfSymtab Symtab;
Symtab.create(FuncNames);
StringRef R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("func1"));
ASSERT_EQ(StringRef("func1"), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("func2"));
ASSERT_EQ(StringRef("func2"), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("func3"));
ASSERT_EQ(StringRef("func3"), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("bar1"));
ASSERT_EQ(StringRef("bar1"), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("bar2"));
ASSERT_EQ(StringRef("bar2"), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("bar3"));
ASSERT_EQ(StringRef("bar3"), R);
// negative tests
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("bar4"));
ASSERT_EQ(StringRef(), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("foo4"));
ASSERT_EQ(StringRef(), R);
// Now incrementally update the symtab
Symtab.addFuncName("blah_1");
Symtab.addFuncName("blah_2");
Symtab.addFuncName("blah_3");
// Finalize it
Symtab.finalizeSymtab();
// Check again
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("blah_1"));
ASSERT_EQ(StringRef("blah_1"), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("blah_2"));
ASSERT_EQ(StringRef("blah_2"), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("blah_3"));
ASSERT_EQ(StringRef("blah_3"), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("func1"));
ASSERT_EQ(StringRef("func1"), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("func2"));
ASSERT_EQ(StringRef("func2"), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("func3"));
ASSERT_EQ(StringRef("func3"), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("bar1"));
ASSERT_EQ(StringRef("bar1"), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("bar2"));
ASSERT_EQ(StringRef("bar2"), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash("bar3"));
ASSERT_EQ(StringRef("bar3"), R);
}
// Testing symtab creator interface used by value profile transformer.
TEST_P(MaybeSparseInstrProfTest, instr_prof_symtab_module_test) {
LLVMContext Ctx;
std::unique_ptr<Module> M = llvm::make_unique<Module>("MyModule.cpp", Ctx);
FunctionType *FTy = FunctionType::get(Type::getVoidTy(Ctx),
/*isVarArg=*/false);
Function::Create(FTy, Function::ExternalLinkage, "Gfoo", M.get());
Function::Create(FTy, Function::ExternalLinkage, "Gblah", M.get());
Function::Create(FTy, Function::ExternalLinkage, "Gbar", M.get());
Function::Create(FTy, Function::InternalLinkage, "Ifoo", M.get());
Function::Create(FTy, Function::InternalLinkage, "Iblah", M.get());
Function::Create(FTy, Function::InternalLinkage, "Ibar", M.get());
Function::Create(FTy, Function::PrivateLinkage, "Pfoo", M.get());
Function::Create(FTy, Function::PrivateLinkage, "Pblah", M.get());
Function::Create(FTy, Function::PrivateLinkage, "Pbar", M.get());
Function::Create(FTy, Function::WeakODRLinkage, "Wfoo", M.get());
Function::Create(FTy, Function::WeakODRLinkage, "Wblah", M.get());
Function::Create(FTy, Function::WeakODRLinkage, "Wbar", M.get());
InstrProfSymtab ProfSymtab;
ProfSymtab.create(*M);
StringRef Funcs[] = {"Gfoo", "Gblah", "Gbar", "Ifoo", "Iblah", "Ibar",
"Pfoo", "Pblah", "Pbar", "Wfoo", "Wblah", "Wbar"};
for (unsigned I = 0; I < sizeof(Funcs) / sizeof(*Funcs); I++) {
Function *F = M->getFunction(Funcs[I]);
ASSERT_TRUE(F != nullptr);
std::string PGOName = getPGOFuncName(*F);
uint64_t Key = IndexedInstrProf::ComputeHash(PGOName);
ASSERT_EQ(StringRef(PGOName),
ProfSymtab.getFuncName(Key));
ASSERT_EQ(StringRef(Funcs[I]), ProfSymtab.getOrigFuncName(Key));
}
}
// Testing symtab serialization and creator/deserialization interface
// used by coverage map reader, and raw profile reader.
TEST_P(MaybeSparseInstrProfTest, instr_prof_symtab_compression_test) {
std::vector<std::string> FuncNames1;
std::vector<std::string> FuncNames2;
for (int I = 0; I < 3; I++) {
std::string str;
raw_string_ostream OS(str);
OS << "func_" << I;
FuncNames1.push_back(OS.str());
str.clear();
OS << "f oooooooooooooo_" << I;
FuncNames1.push_back(OS.str());
str.clear();
OS << "BAR_" << I;
FuncNames2.push_back(OS.str());
str.clear();
OS << "BlahblahBlahblahBar_" << I;
FuncNames2.push_back(OS.str());
}
for (bool DoCompression : {false, true}) {
// Compressing:
std::string FuncNameStrings1;
collectPGOFuncNameStrings(
FuncNames1, (DoCompression && zlib::isAvailable()), FuncNameStrings1);
// Compressing:
std::string FuncNameStrings2;
collectPGOFuncNameStrings(
FuncNames2, (DoCompression && zlib::isAvailable()), FuncNameStrings2);
for (int Padding = 0; Padding < 2; Padding++) {
// Join with paddings :
std::string FuncNameStrings = FuncNameStrings1;
for (int P = 0; P < Padding; P++) {
FuncNameStrings.push_back('\0');
}
FuncNameStrings += FuncNameStrings2;
// Now decompress:
InstrProfSymtab Symtab;
Symtab.create(StringRef(FuncNameStrings));
// Now do the checks:
// First sampling some data points:
StringRef R = Symtab.getFuncName(IndexedInstrProf::ComputeHash(FuncNames1[0]));
ASSERT_EQ(StringRef("func_0"), R);
R = Symtab.getFuncName(IndexedInstrProf::ComputeHash(FuncNames1[1]));
ASSERT_EQ(StringRef("f oooooooooooooo_0"), R);
for (int I = 0; I < 3; I++) {
std::string N[4];
N[0] = FuncNames1[2 * I];
N[1] = FuncNames1[2 * I + 1];
N[2] = FuncNames2[2 * I];
N[3] = FuncNames2[2 * I + 1];
for (int J = 0; J < 4; J++) {
StringRef R = Symtab.getFuncName(IndexedInstrProf::ComputeHash(N[J]));
ASSERT_EQ(StringRef(N[J]), R);
}
}
}
}
}
TEST_F(SparseInstrProfTest, preserve_no_records) {
InstrProfRecord Record1("foo", 0x1234, {0});
InstrProfRecord Record2("bar", 0x4321, {0, 0});
InstrProfRecord Record3("bar", 0x4321, {0, 0, 0});
Writer.addRecord(std::move(Record1));
Writer.addRecord(std::move(Record2));
Writer.addRecord(std::move(Record3));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
auto I = Reader->begin(), E = Reader->end();
ASSERT_TRUE(I == E);
}
INSTANTIATE_TEST_CASE_P(MaybeSparse, MaybeSparseInstrProfTest,
::testing::Bool());
} // end anonymous namespace
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