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llvm-mirror/unittests/ProfileData/InstrProfTest.cpp
David Blaikie d02fba9580 Prototype: Reduce llvm-profdata merge memory usage further 
The InstrProfWriter already stores the name and hash of the record in
the nested maps it uses for lookup while merging - this data is
duplicated in the value within the maps.

Refactor the InstrProfRecord to use a nested struct for the counters
themselves so that InstrProfWriter can use this nested struct alone
without the name or hash duplicated there.

This work is incomplete, but enough to demonstrate the value (around a
50% decrease in memory usage for a large test case (10GB -> 5GB)).
Though most of that decrease is probably from removing the
SoftInstrProfError as well, but I haven't implemented a replacement for
it yet. (it needs to go with the counters, because the operations on the
counters - merging, etc, are where the failures are - unlike the
name/hash which are totally unused by those counter-related operations
and thus easy to split out)

Ongoing discussion about removing SoftInstrProfError as a field of the
InstrProfRecord is happening on the thread that added it - including
the possibility of moving back towards an earlier version of that
proposed patch that passed SoftInstrProfError through the various APIs,
rather than as a member of InstrProfRecord.

Reviewers: davidxl

Differential Revision: https://reviews.llvm.org/D34838

llvm-svn: 307298
2017-07-06 19:00:12 +00:00

1001 lines
39 KiB
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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(Error E) {
if (!E)
return ::testing::AssertionSuccess();
return ::testing::AssertionFailure() << "error: " << toString(std::move(E))
<< "\n";
}
static ::testing::AssertionResult ErrorEquals(instrprof_error Expected,
Error E) {
instrprof_error Found;
std::string FoundMsg;
handleAllErrors(std::move(E), [&](const InstrProfError &IPE) {
Found = IPE.get();
FoundMsg = IPE.message();
});
if (Expected == Found)
return ::testing::AssertionSuccess();
return ::testing::AssertionFailure() << "error: " << FoundMsg << "\n";
}
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.takeError()));
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) {
NoError(Writer.addRecord({"foo", 0x1234, {1, 2, 3, 4}}));
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) {
NoError(Writer.addRecord({"foo", 0x1234, {1, 2}}));
NoError(Writer.addRecord({"foo", 0x1235, {3, 4}}));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("foo", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
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.takeError()));
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.takeError()));
R = Reader->getInstrProfRecord("bar", 0x1234);
ASSERT_TRUE(ErrorEquals(instrprof_error::unknown_function, R.takeError()));
}
TEST_P(MaybeSparseInstrProfTest, get_function_counts) {
NoError(Writer.addRecord({"foo", 0x1234, {1, 2}}));
NoError(Writer.addRecord({"foo", 0x1235, {3, 4}}));
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]);
Error E1 = Reader->getFunctionCounts("foo", 0x5678, Counts);
ASSERT_TRUE(ErrorEquals(instrprof_error::hash_mismatch, std::move(E1)));
Error E2 = Reader->getFunctionCounts("bar", 0x1234, Counts);
ASSERT_TRUE(ErrorEquals(instrprof_error::unknown_function, std::move(E2)));
}
// Profile data is copied from general.proftext
TEST_F(InstrProfTest, get_profile_summary) {
NoError(Writer.addRecord({"func1", 0x1234, {97531}}));
NoError(Writer.addRecord({"func2", 0x1234, {0, 0}}));
NoError(Writer.addRecord(
{"func3",
0x1234,
{2305843009213693952, 1152921504606846976, 576460752303423488,
288230376151711744, 144115188075855872, 72057594037927936}}));
NoError(Writer.addRecord({"func4", 0x1234, {0}}));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
auto VerifySummary = [](ProfileSummary &IPS) mutable {
ASSERT_EQ(ProfileSummary::PSK_Instr, IPS.getKind());
ASSERT_EQ(2305843009213693952U, IPS.getMaxFunctionCount());
ASSERT_EQ(2305843009213693952U, IPS.getMaxCount());
ASSERT_EQ(10U, IPS.getNumCounts());
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 = find_if(Details, Predicate);
Cutoff = 900000;
auto NinetyPerc = find_if(Details, Predicate);
Cutoff = 950000;
auto NinetyFivePerc = find_if(Details, Predicate);
Cutoff = 990000;
auto NinetyNinePerc = find_if(Details, Predicate);
ASSERT_EQ(576460752303423488U, EightyPerc->MinCount);
ASSERT_EQ(288230376151711744U, NinetyPerc->MinCount);
ASSERT_EQ(288230376151711744U, NinetyFivePerc->MinCount);
ASSERT_EQ(72057594037927936U, NinetyNinePerc->MinCount);
};
ProfileSummary &PS = Reader->getSummary();
VerifySummary(PS);
// Test that conversion of summary to and from Metadata works.
LLVMContext Context;
Metadata *MD = PS.getMD(Context);
ASSERT_TRUE(MD);
ProfileSummary *PSFromMD = ProfileSummary::getFromMD(MD);
ASSERT_TRUE(PSFromMD);
VerifySummary(*PSFromMD);
delete PSFromMD;
// Test that summary can be attached to and read back from module.
Module M("my_module", Context);
M.setProfileSummary(MD);
MD = M.getProfileSummary();
ASSERT_TRUE(MD);
PSFromMD = ProfileSummary::getFromMD(MD);
ASSERT_TRUE(PSFromMD);
VerifySummary(*PSFromMD);
delete PSFromMD;
}
TEST_F(InstrProfTest, test_writer_merge) {
NoError(Writer.addRecord({"func1", 0x1234, {42}}));
InstrProfWriter Writer2;
NoError(Writer2.addRecord({"func2", 0x1234, {0, 0}}));
NoError(Writer.mergeRecordsFromWriter(std::move(Writer2)));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("func1", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
ASSERT_EQ(1U, R->Counts.size());
ASSERT_EQ(42U, R->Counts[0]);
R = Reader->getInstrProfRecord("func2", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
ASSERT_EQ(2U, R->Counts.size());
ASSERT_EQ(0U, R->Counts[0]);
ASSERT_EQ(0U, R->Counts[1]);
}
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) {
NamedInstrProfRecord Record1("caller", 0x1234, {1, 2});
// 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);
NoError(Writer.addRecord(std::move(Record1)));
NoError(Writer.addRecord({"callee1", 0x1235, {3, 4}}));
NoError(Writer.addRecord({"callee2", 0x1235, {3, 4}}));
NoError(Writer.addRecord({"callee3", 0x1235, {3, 4}}));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
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) {
NamedInstrProfRecord 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);
NoError(Writer.addRecord(std::move(Record)));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
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) {
NamedInstrProfRecord Record1("caller", 0x1234, {1, 2});
// 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);
NoError(Writer.addRecord(std::move(Record1), 10));
NoError(Writer.addRecord({"callee1", 0x1235, {3, 4}}));
NoError(Writer.addRecord({"callee2", 0x1235, {3, 4}}));
NoError(Writer.addRecord({"callee3", 0x1235, {3, 4}}));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
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) {
NamedInstrProfRecord Record1("caller", 0x1234, {1, 2});
// 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);
NoError(Writer.addRecord(std::move(Record1)));
NoError(Writer.addRecord({"callee1", 0x1235, {3, 4}}));
NoError(Writer.addRecord({"callee2", 0x1235, {3, 4}}));
NoError(Writer.addRecord({"callee3", 0x1235, {3, 4}}));
// Set big endian output.
Writer.setValueProfDataEndianness(support::big);
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
// Set big endian input.
Reader->setValueProfDataEndianness(support::big);
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
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";
NamedInstrProfRecord Record11(caller, 0x1234, {1, 2});
NamedInstrProfRecord Record12(caller, 0x1234, {1, 2});
// 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 different 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);
NoError(Writer.addRecord(std::move(Record11)));
// Merge profile data.
NoError(Writer.addRecord(std::move(Record12)));
NoError(Writer.addRecord({callee1, 0x1235, {3, 4}}));
NoError(Writer.addRecord({callee2, 0x1235, {3, 4}}));
NoError(Writer.addRecord({callee3, 0x1235, {3, 4}}));
NoError(Writer.addRecord({callee3, 0x1235, {3, 4}}));
NoError(Writer.addRecord({callee4, 0x1235, {3, 5}}));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
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();
auto Result1 = Writer.addRecord({"foo", 0x1234, {1}});
ASSERT_EQ(InstrProfError::take(std::move(Result1)),
instrprof_error::success);
// Verify counter overflow.
auto Result2 = Writer.addRecord({"foo", 0x1234, {Max}});
ASSERT_EQ(InstrProfError::take(std::move(Result2)),
instrprof_error::counter_overflow);
auto Result3 = Writer.addRecord({bar, 0x9012, {8}});
ASSERT_EQ(InstrProfError::take(std::move(Result3)),
instrprof_error::success);
NamedInstrProfRecord 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(InstrProfError::take(std::move(Result4)),
instrprof_error::success);
// Verify value data counter overflow.
NamedInstrProfRecord 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(InstrProfError::take(std::move(Result5)),
instrprof_error::counter_overflow);
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
// Verify saturation of counts.
Expected<InstrProfRecord> ReadRecord1 =
Reader->getInstrProfRecord("foo", 0x1234);
ASSERT_TRUE(NoError(ReadRecord1.takeError()));
ASSERT_EQ(Max, ReadRecord1->Counts[0]);
Expected<InstrProfRecord> ReadRecord2 =
Reader->getInstrProfRecord("baz", 0x5678);
ASSERT_TRUE(bool(ReadRecord2));
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";
NamedInstrProfRecord Record11(caller, 0x1234, {1, 2});
NamedInstrProfRecord 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);
NoError(Writer.addRecord(std::move(Record11)));
// Merge profile data.
NoError(Writer.addRecord(std::move(Record12)));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
Expected<InstrProfRecord> R = Reader->getInstrProfRecord("caller", 0x1234);
ASSERT_TRUE(NoError(R.takeError()));
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);
}
}
static void addValueProfData(InstrProfRecord &Record) {
Record.reserveSites(IPVK_IndirectCallTarget, 5);
InstrProfValueData VD0[] = {{uint64_t(callee1), 400},
{uint64_t(callee2), 1000},
{uint64_t(callee3), 500},
{uint64_t(callee4), 300},
{uint64_t(callee5), 100}};
Record.addValueData(IPVK_IndirectCallTarget, 0, VD0, 5, nullptr);
InstrProfValueData VD1[] = {{uint64_t(callee5), 800},
{uint64_t(callee3), 1000},
{uint64_t(callee2), 2500},
{uint64_t(callee1), 1300}};
Record.addValueData(IPVK_IndirectCallTarget, 1, VD1, 4, nullptr);
InstrProfValueData VD2[] = {{uint64_t(callee6), 800},
{uint64_t(callee3), 1000},
{uint64_t(callee4), 5500}};
Record.addValueData(IPVK_IndirectCallTarget, 2, VD2, 3, nullptr);
InstrProfValueData VD3[] = {{uint64_t(callee2), 1800},
{uint64_t(callee3), 2000}};
Record.addValueData(IPVK_IndirectCallTarget, 3, VD3, 2, nullptr);
Record.addValueData(IPVK_IndirectCallTarget, 4, nullptr, 0, nullptr);
}
TEST_P(MaybeSparseInstrProfTest, value_prof_data_read_write) {
InstrProfRecord SrcRecord({1ULL << 31, 2});
addValueProfData(SrcRecord);
std::unique_ptr<ValueProfData> VPData =
ValueProfData::serializeFrom(SrcRecord);
InstrProfRecord Record({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);
}
TEST_P(MaybeSparseInstrProfTest, value_prof_data_read_write_mapping) {
NamedInstrProfRecord SrcRecord("caller", 0x1234, {1ULL << 31, 2});
addValueProfData(SrcRecord);
std::unique_ptr<ValueProfData> VPData =
ValueProfData::serializeFrom(SrcRecord);
NamedInstrProfRecord 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(5U, 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) {
NoError(Writer.addRecord({"foo", 0x1234, {1ULL << 31, 2}}));
NoError(Writer.addRecord({"bar", 0, {1ULL << 63}}));
NoError(Writer.addRecord({"baz", 0x5678, {0, 0, 0, 0}}));
auto Profile = Writer.writeBuffer();
readProfile(std::move(Profile));
ASSERT_EQ(1ULL << 63, Reader->getMaximumFunctionCount());
}
TEST_P(MaybeSparseInstrProfTest, get_weighted_function_counts) {
NoError(Writer.addRecord({"foo", 0x1234, {1, 2}}, 3));
NoError(Writer.addRecord({"foo", 0x1235, {3, 4}}, 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;
NoError(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
NoError(Symtab.addFuncName("blah_1"));
NoError(Symtab.addFuncName("blah_2"));
NoError(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);
}
// Test that we get an error when creating a bogus symtab.
TEST_P(MaybeSparseInstrProfTest, instr_prof_bogus_symtab_empty_func_name) {
InstrProfSymtab Symtab;
ErrorEquals(instrprof_error::malformed, Symtab.addFuncName(""));
}
// 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;
NoError(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;
NoError(collectPGOFuncNameStrings(
FuncNames1, (DoCompression && zlib::isAvailable()), FuncNameStrings1));
// Compressing:
std::string FuncNameStrings2;
NoError(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;
NoError(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) {
NoError(Writer.addRecord({"foo", 0x1234, {0}}));
NoError(Writer.addRecord({"bar", 0x4321, {0, 0}}));
NoError(Writer.addRecord({"bar", 0x4321, {0, 0, 0}}));
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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