1 //===- llvm/unittest/ADT/APSIntTest.cpp - APSInt unit tests ---------------===//
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/ADT/APSInt.h"
11 #include "gtest/gtest.h"
12
13 using namespace llvm;
14
15 namespace {
16
TEST(APSIntTest,MoveTest)17 TEST(APSIntTest, MoveTest) {
18 APSInt A(32, true);
19 EXPECT_TRUE(A.isUnsigned());
20
21 APSInt B(128, false);
22 A = B;
23 EXPECT_FALSE(A.isUnsigned());
24
25 APSInt C(B);
26 EXPECT_FALSE(C.isUnsigned());
27
28 APInt Wide(256, 0);
29 const uint64_t *Bits = Wide.getRawData();
30 APSInt D(std::move(Wide));
31 EXPECT_TRUE(D.isUnsigned());
32 EXPECT_EQ(Bits, D.getRawData()); // Verify that "Wide" was really moved.
33
34 A = APSInt(64, true);
35 EXPECT_TRUE(A.isUnsigned());
36
37 Wide = APInt(128, 1);
38 Bits = Wide.getRawData();
39 A = std::move(Wide);
40 EXPECT_TRUE(A.isUnsigned());
41 EXPECT_EQ(Bits, A.getRawData()); // Verify that "Wide" was really moved.
42 }
43
TEST(APSIntTest,get)44 TEST(APSIntTest, get) {
45 EXPECT_TRUE(APSInt::get(7).isSigned());
46 EXPECT_EQ(64u, APSInt::get(7).getBitWidth());
47 EXPECT_EQ(7u, APSInt::get(7).getZExtValue());
48 EXPECT_EQ(7, APSInt::get(7).getSExtValue());
49 EXPECT_TRUE(APSInt::get(-7).isSigned());
50 EXPECT_EQ(64u, APSInt::get(-7).getBitWidth());
51 EXPECT_EQ(-7, APSInt::get(-7).getSExtValue());
52 EXPECT_EQ(UINT64_C(0) - 7, APSInt::get(-7).getZExtValue());
53 }
54
TEST(APSIntTest,getUnsigned)55 TEST(APSIntTest, getUnsigned) {
56 EXPECT_TRUE(APSInt::getUnsigned(7).isUnsigned());
57 EXPECT_EQ(64u, APSInt::getUnsigned(7).getBitWidth());
58 EXPECT_EQ(7u, APSInt::getUnsigned(7).getZExtValue());
59 EXPECT_EQ(7, APSInt::getUnsigned(7).getSExtValue());
60 EXPECT_TRUE(APSInt::getUnsigned(-7).isUnsigned());
61 EXPECT_EQ(64u, APSInt::getUnsigned(-7).getBitWidth());
62 EXPECT_EQ(-7, APSInt::getUnsigned(-7).getSExtValue());
63 EXPECT_EQ(UINT64_C(0) - 7, APSInt::getUnsigned(-7).getZExtValue());
64 }
65
TEST(APSIntTest,getExtValue)66 TEST(APSIntTest, getExtValue) {
67 EXPECT_TRUE(APSInt(APInt(3, 7), true).isUnsigned());
68 EXPECT_TRUE(APSInt(APInt(3, 7), false).isSigned());
69 EXPECT_TRUE(APSInt(APInt(4, 7), true).isUnsigned());
70 EXPECT_TRUE(APSInt(APInt(4, 7), false).isSigned());
71 EXPECT_TRUE(APSInt(APInt(4, -7), true).isUnsigned());
72 EXPECT_TRUE(APSInt(APInt(4, -7), false).isSigned());
73 EXPECT_EQ(7, APSInt(APInt(3, 7), true).getExtValue());
74 EXPECT_EQ(-1, APSInt(APInt(3, 7), false).getExtValue());
75 EXPECT_EQ(7, APSInt(APInt(4, 7), true).getExtValue());
76 EXPECT_EQ(7, APSInt(APInt(4, 7), false).getExtValue());
77 EXPECT_EQ(9, APSInt(APInt(4, -7), true).getExtValue());
78 EXPECT_EQ(-7, APSInt(APInt(4, -7), false).getExtValue());
79 }
80
TEST(APSIntTest,compareValues)81 TEST(APSIntTest, compareValues) {
82 auto U = [](uint64_t V) { return APSInt::getUnsigned(V); };
83 auto S = [](int64_t V) { return APSInt::get(V); };
84
85 // Bit-width matches and is-signed.
86 EXPECT_TRUE(APSInt::compareValues(S(7), S(8)) < 0);
87 EXPECT_TRUE(APSInt::compareValues(S(8), S(7)) > 0);
88 EXPECT_TRUE(APSInt::compareValues(S(7), S(7)) == 0);
89 EXPECT_TRUE(APSInt::compareValues(S(-7), S(8)) < 0);
90 EXPECT_TRUE(APSInt::compareValues(S(8), S(-7)) > 0);
91 EXPECT_TRUE(APSInt::compareValues(S(-7), S(-7)) == 0);
92 EXPECT_TRUE(APSInt::compareValues(S(-7), S(-8)) > 0);
93 EXPECT_TRUE(APSInt::compareValues(S(-8), S(-7)) < 0);
94 EXPECT_TRUE(APSInt::compareValues(S(-7), S(-7)) == 0);
95
96 // Bit-width matches and not is-signed.
97 EXPECT_TRUE(APSInt::compareValues(U(7), U(8)) < 0);
98 EXPECT_TRUE(APSInt::compareValues(U(8), U(7)) > 0);
99 EXPECT_TRUE(APSInt::compareValues(U(7), U(7)) == 0);
100
101 // Bit-width matches and mixed signs.
102 EXPECT_TRUE(APSInt::compareValues(U(7), S(8)) < 0);
103 EXPECT_TRUE(APSInt::compareValues(U(8), S(7)) > 0);
104 EXPECT_TRUE(APSInt::compareValues(U(7), S(7)) == 0);
105 EXPECT_TRUE(APSInt::compareValues(U(8), S(-7)) > 0);
106
107 // Bit-width mismatch and is-signed.
108 EXPECT_TRUE(APSInt::compareValues(S(7).trunc(32), S(8)) < 0);
109 EXPECT_TRUE(APSInt::compareValues(S(8).trunc(32), S(7)) > 0);
110 EXPECT_TRUE(APSInt::compareValues(S(7).trunc(32), S(7)) == 0);
111 EXPECT_TRUE(APSInt::compareValues(S(-7).trunc(32), S(8)) < 0);
112 EXPECT_TRUE(APSInt::compareValues(S(8).trunc(32), S(-7)) > 0);
113 EXPECT_TRUE(APSInt::compareValues(S(-7).trunc(32), S(-7)) == 0);
114 EXPECT_TRUE(APSInt::compareValues(S(-7).trunc(32), S(-8)) > 0);
115 EXPECT_TRUE(APSInt::compareValues(S(-8).trunc(32), S(-7)) < 0);
116 EXPECT_TRUE(APSInt::compareValues(S(-7).trunc(32), S(-7)) == 0);
117 EXPECT_TRUE(APSInt::compareValues(S(7), S(8).trunc(32)) < 0);
118 EXPECT_TRUE(APSInt::compareValues(S(8), S(7).trunc(32)) > 0);
119 EXPECT_TRUE(APSInt::compareValues(S(7), S(7).trunc(32)) == 0);
120 EXPECT_TRUE(APSInt::compareValues(S(-7), S(8).trunc(32)) < 0);
121 EXPECT_TRUE(APSInt::compareValues(S(8), S(-7).trunc(32)) > 0);
122 EXPECT_TRUE(APSInt::compareValues(S(-7), S(-7).trunc(32)) == 0);
123 EXPECT_TRUE(APSInt::compareValues(S(-7), S(-8).trunc(32)) > 0);
124 EXPECT_TRUE(APSInt::compareValues(S(-8), S(-7).trunc(32)) < 0);
125 EXPECT_TRUE(APSInt::compareValues(S(-7), S(-7).trunc(32)) == 0);
126
127 // Bit-width mismatch and not is-signed.
128 EXPECT_TRUE(APSInt::compareValues(U(7), U(8).trunc(32)) < 0);
129 EXPECT_TRUE(APSInt::compareValues(U(8), U(7).trunc(32)) > 0);
130 EXPECT_TRUE(APSInt::compareValues(U(7), U(7).trunc(32)) == 0);
131 EXPECT_TRUE(APSInt::compareValues(U(7).trunc(32), U(8)) < 0);
132 EXPECT_TRUE(APSInt::compareValues(U(8).trunc(32), U(7)) > 0);
133 EXPECT_TRUE(APSInt::compareValues(U(7).trunc(32), U(7)) == 0);
134
135 // Bit-width mismatch and mixed signs.
136 EXPECT_TRUE(APSInt::compareValues(U(7).trunc(32), S(8)) < 0);
137 EXPECT_TRUE(APSInt::compareValues(U(8).trunc(32), S(7)) > 0);
138 EXPECT_TRUE(APSInt::compareValues(U(7).trunc(32), S(7)) == 0);
139 EXPECT_TRUE(APSInt::compareValues(U(8).trunc(32), S(-7)) > 0);
140 EXPECT_TRUE(APSInt::compareValues(U(7), S(8).trunc(32)) < 0);
141 EXPECT_TRUE(APSInt::compareValues(U(8), S(7).trunc(32)) > 0);
142 EXPECT_TRUE(APSInt::compareValues(U(7), S(7).trunc(32)) == 0);
143 EXPECT_TRUE(APSInt::compareValues(U(8), S(-7).trunc(32)) > 0);
144 }
145
TEST(APSIntTest,FromString)146 TEST(APSIntTest, FromString) {
147 EXPECT_EQ(APSInt("1").getExtValue(), 1);
148 EXPECT_EQ(APSInt("-1").getExtValue(), -1);
149 EXPECT_EQ(APSInt("0").getExtValue(), 0);
150 EXPECT_EQ(APSInt("56789").getExtValue(), 56789);
151 EXPECT_EQ(APSInt("-1234").getExtValue(), -1234);
152 }
153
154 #if defined(GTEST_HAS_DEATH_TEST) && !defined(NDEBUG)
155
TEST(APSIntTest,StringDeath)156 TEST(APSIntTest, StringDeath) {
157 EXPECT_DEATH(APSInt(""), "Invalid string length");
158 EXPECT_DEATH(APSInt("1a"), "Invalid character in digit string");
159 }
160
161 #endif
162
163 } // end anonymous namespace
164