1 //===- unittest/ProfileData/InstrProfTest.cpp -------------------------------=//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include "llvm/ProfileData/InstrProfReader.h"
11 #include "llvm/ProfileData/InstrProfWriter.h"
12 #include "gtest/gtest.h"
13
14 #include <cstdarg>
15
16 using namespace llvm;
17
NoError(std::error_code EC)18 static ::testing::AssertionResult NoError(std::error_code EC) {
19 if (!EC)
20 return ::testing::AssertionSuccess();
21 return ::testing::AssertionFailure() << "error " << EC.value()
22 << ": " << EC.message();
23 }
24
ErrorEquals(std::error_code Expected,std::error_code Found)25 static ::testing::AssertionResult ErrorEquals(std::error_code Expected,
26 std::error_code Found) {
27 if (Expected == Found)
28 return ::testing::AssertionSuccess();
29 return ::testing::AssertionFailure() << "error " << Found.value()
30 << ": " << Found.message();
31 }
32
33 namespace {
34
35 struct InstrProfTest : ::testing::Test {
36 InstrProfWriter Writer;
37 std::unique_ptr<IndexedInstrProfReader> Reader;
38
readProfile__anonfb3b20cf0111::InstrProfTest39 void readProfile(std::unique_ptr<MemoryBuffer> Profile) {
40 auto ReaderOrErr = IndexedInstrProfReader::create(std::move(Profile));
41 ASSERT_TRUE(NoError(ReaderOrErr.getError()));
42 Reader = std::move(ReaderOrErr.get());
43 }
44 };
45
TEST_F(InstrProfTest,write_and_read_empty_profile)46 TEST_F(InstrProfTest, write_and_read_empty_profile) {
47 auto Profile = Writer.writeBuffer();
48 readProfile(std::move(Profile));
49 ASSERT_TRUE(Reader->begin() == Reader->end());
50 }
51
TEST_F(InstrProfTest,write_and_read_one_function)52 TEST_F(InstrProfTest, write_and_read_one_function) {
53 Writer.addFunctionCounts("foo", 0x1234, {1, 2, 3, 4});
54 auto Profile = Writer.writeBuffer();
55 readProfile(std::move(Profile));
56
57 auto I = Reader->begin(), E = Reader->end();
58 ASSERT_TRUE(I != E);
59 ASSERT_EQ(StringRef("foo"), I->Name);
60 ASSERT_EQ(0x1234U, I->Hash);
61 ASSERT_EQ(4U, I->Counts.size());
62 ASSERT_EQ(1U, I->Counts[0]);
63 ASSERT_EQ(2U, I->Counts[1]);
64 ASSERT_EQ(3U, I->Counts[2]);
65 ASSERT_EQ(4U, I->Counts[3]);
66 ASSERT_TRUE(++I == E);
67 }
68
TEST_F(InstrProfTest,get_function_counts)69 TEST_F(InstrProfTest, get_function_counts) {
70 Writer.addFunctionCounts("foo", 0x1234, {1, 2});
71 auto Profile = Writer.writeBuffer();
72 readProfile(std::move(Profile));
73
74 std::vector<uint64_t> Counts;
75 ASSERT_TRUE(NoError(Reader->getFunctionCounts("foo", 0x1234, Counts)));
76 ASSERT_EQ(2U, Counts.size());
77 ASSERT_EQ(1U, Counts[0]);
78 ASSERT_EQ(2U, Counts[1]);
79
80 std::error_code EC;
81 EC = Reader->getFunctionCounts("foo", 0x5678, Counts);
82 ASSERT_TRUE(ErrorEquals(instrprof_error::hash_mismatch, EC));
83
84 EC = Reader->getFunctionCounts("bar", 0x1234, Counts);
85 ASSERT_TRUE(ErrorEquals(instrprof_error::unknown_function, EC));
86 }
87
TEST_F(InstrProfTest,get_max_function_count)88 TEST_F(InstrProfTest, get_max_function_count) {
89 Writer.addFunctionCounts("foo", 0x1234, {1ULL << 31, 2});
90 Writer.addFunctionCounts("bar", 0, {1ULL << 63});
91 Writer.addFunctionCounts("baz", 0x5678, {0, 0, 0, 0});
92 auto Profile = Writer.writeBuffer();
93 readProfile(std::move(Profile));
94
95 ASSERT_EQ(1ULL << 63, Reader->getMaximumFunctionCount());
96 }
97
98 } // end anonymous namespace
99