+//===- unittest/ProfileData/InstrProfTest.cpp -------------------------------=//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ProfileData/InstrProfReader.h"
+#include "llvm/ProfileData/InstrProfWriter.h"
+#include "gtest/gtest.h"
+
+using namespace llvm;
+
+namespace {
+
+struct InstrProfTest : ::testing::Test {
+ InstrProfWriter Writer;
+ std::unique_ptr<IndexedInstrProfReader> Reader;
+
+ void addCounts(StringRef Name, uint64_t Hash, int NumCounts, ...) {
+ SmallVector<uint64_t, 8> Counts;
+ va_list Args;
+ va_start(Args, NumCounts);
+ for (int I = 0; I < NumCounts; ++I)
+ Counts.push_back(va_arg(Args, uint64_t));
+ va_end(Args);
+ Writer.addFunctionCounts(Name, Hash, Counts);
+ }
+
+ std::string writeProfile() { return Writer.writeString(); }
+ void readProfile(std::string Profile) {
+ auto ReaderOrErr =
+ IndexedInstrProfReader::create(MemoryBuffer::getMemBuffer(Profile));
+ ASSERT_EQ(std::error_code(), ReaderOrErr.getError());
+ Reader = std::move(ReaderOrErr.get());
+ }
+};
+
+TEST_F(InstrProfTest, write_and_read_empty_profile) {
+ std::string Profile = writeProfile();
+ readProfile(Profile);
+ ASSERT_TRUE(Reader->begin() == Reader->end());
+}
+
+TEST_F(InstrProfTest, write_and_read_one_function) {
+ addCounts("foo", 0x1234, 4, 1ULL, 2ULL, 3ULL, 4ULL);
+ std::string Profile = writeProfile();
+ readProfile(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_F(InstrProfTest, get_function_counts) {
+ addCounts("foo", 0x1234, 2, 1ULL, 2ULL);
+ std::string Profile = writeProfile();
+ readProfile(Profile);
+
+ std::vector<uint64_t> Counts;
+ std::error_code EC;
+
+ EC = Reader->getFunctionCounts("foo", 0x1234, Counts);
+ ASSERT_EQ(instrprof_error::success, EC);
+ ASSERT_EQ(2U, Counts.size());
+ ASSERT_EQ(1U, Counts[0]);
+ ASSERT_EQ(2U, Counts[1]);
+
+ EC = Reader->getFunctionCounts("foo", 0x5678, Counts);
+ ASSERT_EQ(instrprof_error::hash_mismatch, EC);
+
+ EC = Reader->getFunctionCounts("bar", 0x1234, Counts);
+ ASSERT_EQ(instrprof_error::unknown_function, EC);
+}
+
+TEST_F(InstrProfTest, get_max_function_count) {
+ addCounts("foo", 0x1234, 2, 1ULL << 31, 2ULL);
+ addCounts("bar", 0, 1, 1ULL << 63);
+ addCounts("baz", 0x5678, 4, 0ULL, 0ULL, 0ULL, 0ULL);
+ std::string Profile = writeProfile();
+ readProfile(Profile);
+
+ ASSERT_EQ(1ULL << 63, Reader->getMaximumFunctionCount());
+}
+
+} // end anonymous namespace