1 //===- llvm/unittest/ADT/APSIntTest.cpp - APSInt unit tests ---------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "llvm/ADT/APSInt.h" 10 #include "gtest/gtest.h" 11 12 using namespace llvm; 13 14 namespace { 15 16 TEST(APSIntTest, MoveTest) { 17 APSInt A(32, true); 18 EXPECT_TRUE(A.isUnsigned()); 19 20 APSInt B(128, false); 21 A = B; 22 EXPECT_FALSE(A.isUnsigned()); 23 24 APSInt C(B); 25 EXPECT_FALSE(C.isUnsigned()); 26 27 APInt Wide(256, 0); 28 const uint64_t *Bits = Wide.getRawData(); 29 APSInt D(std::move(Wide)); 30 EXPECT_TRUE(D.isUnsigned()); 31 EXPECT_EQ(Bits, D.getRawData()); // Verify that "Wide" was really moved. 32 33 A = APSInt(64, true); 34 EXPECT_TRUE(A.isUnsigned()); 35 36 Wide = APInt(128, 1); 37 Bits = Wide.getRawData(); 38 A = std::move(Wide); 39 EXPECT_TRUE(A.isUnsigned()); 40 EXPECT_EQ(Bits, A.getRawData()); // Verify that "Wide" was really moved. 41 } 42 43 TEST(APSIntTest, get) { 44 EXPECT_TRUE(APSInt::get(7).isSigned()); 45 EXPECT_EQ(64u, APSInt::get(7).getBitWidth()); 46 EXPECT_EQ(7u, APSInt::get(7).getZExtValue()); 47 EXPECT_EQ(7, APSInt::get(7).getSExtValue()); 48 EXPECT_TRUE(APSInt::get(-7).isSigned()); 49 EXPECT_EQ(64u, APSInt::get(-7).getBitWidth()); 50 EXPECT_EQ(-7, APSInt::get(-7).getSExtValue()); 51 EXPECT_EQ(UINT64_C(0) - 7, APSInt::get(-7).getZExtValue()); 52 } 53 54 TEST(APSIntTest, getUnsigned) { 55 EXPECT_TRUE(APSInt::getUnsigned(7).isUnsigned()); 56 EXPECT_EQ(64u, APSInt::getUnsigned(7).getBitWidth()); 57 EXPECT_EQ(7u, APSInt::getUnsigned(7).getZExtValue()); 58 EXPECT_EQ(7, APSInt::getUnsigned(7).getSExtValue()); 59 EXPECT_TRUE(APSInt::getUnsigned(-7).isUnsigned()); 60 EXPECT_EQ(64u, APSInt::getUnsigned(-7).getBitWidth()); 61 EXPECT_EQ(-7, APSInt::getUnsigned(-7).getSExtValue()); 62 EXPECT_EQ(UINT64_C(0) - 7, APSInt::getUnsigned(-7).getZExtValue()); 63 } 64 65 TEST(APSIntTest, getExtValue) { 66 EXPECT_TRUE(APSInt(APInt(3, 7), true).isUnsigned()); 67 EXPECT_TRUE(APSInt(APInt(3, 7), false).isSigned()); 68 EXPECT_TRUE(APSInt(APInt(4, 7), true).isUnsigned()); 69 EXPECT_TRUE(APSInt(APInt(4, 7), false).isSigned()); 70 EXPECT_TRUE(APSInt(APInt(4, -7), true).isUnsigned()); 71 EXPECT_TRUE(APSInt(APInt(4, -7), false).isSigned()); 72 EXPECT_EQ(7, APSInt(APInt(3, 7), true).getExtValue()); 73 EXPECT_EQ(-1, APSInt(APInt(3, 7), false).getExtValue()); 74 EXPECT_EQ(7, APSInt(APInt(4, 7), true).getExtValue()); 75 EXPECT_EQ(7, APSInt(APInt(4, 7), false).getExtValue()); 76 EXPECT_EQ(9, APSInt(APInt(4, -7), true).getExtValue()); 77 EXPECT_EQ(-7, APSInt(APInt(4, -7), false).getExtValue()); 78 } 79 80 TEST(APSIntTest, compareValues) { 81 auto U = [](uint64_t V) { return APSInt::getUnsigned(V); }; 82 auto S = [](int64_t V) { return APSInt::get(V); }; 83 84 // Bit-width matches and is-signed. 85 EXPECT_TRUE(APSInt::compareValues(S(7), S(8)) < 0); 86 EXPECT_TRUE(APSInt::compareValues(S(8), S(7)) > 0); 87 EXPECT_TRUE(APSInt::compareValues(S(7), S(7)) == 0); 88 EXPECT_TRUE(APSInt::compareValues(S(-7), S(8)) < 0); 89 EXPECT_TRUE(APSInt::compareValues(S(8), S(-7)) > 0); 90 EXPECT_TRUE(APSInt::compareValues(S(-7), S(-7)) == 0); 91 EXPECT_TRUE(APSInt::compareValues(S(-7), S(-8)) > 0); 92 EXPECT_TRUE(APSInt::compareValues(S(-8), S(-7)) < 0); 93 EXPECT_TRUE(APSInt::compareValues(S(-7), S(-7)) == 0); 94 95 // Bit-width matches and not is-signed. 96 EXPECT_TRUE(APSInt::compareValues(U(7), U(8)) < 0); 97 EXPECT_TRUE(APSInt::compareValues(U(8), U(7)) > 0); 98 EXPECT_TRUE(APSInt::compareValues(U(7), U(7)) == 0); 99 100 // Bit-width matches and mixed signs. 101 EXPECT_TRUE(APSInt::compareValues(U(7), S(8)) < 0); 102 EXPECT_TRUE(APSInt::compareValues(U(8), S(7)) > 0); 103 EXPECT_TRUE(APSInt::compareValues(U(7), S(7)) == 0); 104 EXPECT_TRUE(APSInt::compareValues(U(8), S(-7)) > 0); 105 106 // Bit-width mismatch and is-signed. 107 EXPECT_TRUE(APSInt::compareValues(S(7).trunc(32), S(8)) < 0); 108 EXPECT_TRUE(APSInt::compareValues(S(8).trunc(32), S(7)) > 0); 109 EXPECT_TRUE(APSInt::compareValues(S(7).trunc(32), S(7)) == 0); 110 EXPECT_TRUE(APSInt::compareValues(S(-7).trunc(32), S(8)) < 0); 111 EXPECT_TRUE(APSInt::compareValues(S(8).trunc(32), S(-7)) > 0); 112 EXPECT_TRUE(APSInt::compareValues(S(-7).trunc(32), S(-7)) == 0); 113 EXPECT_TRUE(APSInt::compareValues(S(-7).trunc(32), S(-8)) > 0); 114 EXPECT_TRUE(APSInt::compareValues(S(-8).trunc(32), S(-7)) < 0); 115 EXPECT_TRUE(APSInt::compareValues(S(-7).trunc(32), S(-7)) == 0); 116 EXPECT_TRUE(APSInt::compareValues(S(7), S(8).trunc(32)) < 0); 117 EXPECT_TRUE(APSInt::compareValues(S(8), S(7).trunc(32)) > 0); 118 EXPECT_TRUE(APSInt::compareValues(S(7), S(7).trunc(32)) == 0); 119 EXPECT_TRUE(APSInt::compareValues(S(-7), S(8).trunc(32)) < 0); 120 EXPECT_TRUE(APSInt::compareValues(S(8), S(-7).trunc(32)) > 0); 121 EXPECT_TRUE(APSInt::compareValues(S(-7), S(-7).trunc(32)) == 0); 122 EXPECT_TRUE(APSInt::compareValues(S(-7), S(-8).trunc(32)) > 0); 123 EXPECT_TRUE(APSInt::compareValues(S(-8), S(-7).trunc(32)) < 0); 124 EXPECT_TRUE(APSInt::compareValues(S(-7), S(-7).trunc(32)) == 0); 125 126 // Bit-width mismatch and not is-signed. 127 EXPECT_TRUE(APSInt::compareValues(U(7), U(8).trunc(32)) < 0); 128 EXPECT_TRUE(APSInt::compareValues(U(8), U(7).trunc(32)) > 0); 129 EXPECT_TRUE(APSInt::compareValues(U(7), U(7).trunc(32)) == 0); 130 EXPECT_TRUE(APSInt::compareValues(U(7).trunc(32), U(8)) < 0); 131 EXPECT_TRUE(APSInt::compareValues(U(8).trunc(32), U(7)) > 0); 132 EXPECT_TRUE(APSInt::compareValues(U(7).trunc(32), U(7)) == 0); 133 134 // Bit-width mismatch and mixed signs. 135 EXPECT_TRUE(APSInt::compareValues(U(7).trunc(32), S(8)) < 0); 136 EXPECT_TRUE(APSInt::compareValues(U(8).trunc(32), S(7)) > 0); 137 EXPECT_TRUE(APSInt::compareValues(U(7).trunc(32), S(7)) == 0); 138 EXPECT_TRUE(APSInt::compareValues(U(8).trunc(32), S(-7)) > 0); 139 EXPECT_TRUE(APSInt::compareValues(U(7), S(8).trunc(32)) < 0); 140 EXPECT_TRUE(APSInt::compareValues(U(8), S(7).trunc(32)) > 0); 141 EXPECT_TRUE(APSInt::compareValues(U(7), S(7).trunc(32)) == 0); 142 EXPECT_TRUE(APSInt::compareValues(U(8), S(-7).trunc(32)) > 0); 143 } 144 145 TEST(APSIntTest, FromString) { 146 EXPECT_EQ(APSInt("1").getExtValue(), 1); 147 EXPECT_EQ(APSInt("-1").getExtValue(), -1); 148 EXPECT_EQ(APSInt("0").getExtValue(), 0); 149 EXPECT_EQ(APSInt("56789").getExtValue(), 56789); 150 EXPECT_EQ(APSInt("-1234").getExtValue(), -1234); 151 } 152 153 #if defined(GTEST_HAS_DEATH_TEST) && !defined(NDEBUG) 154 155 TEST(APSIntTest, StringDeath) { 156 EXPECT_DEATH((void)APSInt(""), "Invalid string length"); 157 EXPECT_DEATH((void)APSInt("1a"), "Invalid character in digit string"); 158 } 159 160 #endif 161 162 TEST(APSIntTest, SignedHighBit) { 163 APSInt False(APInt(1, 0), false); 164 APSInt True(APInt(1, 1), false); 165 APSInt CharMin(APInt(8, 0), false); 166 APSInt CharSmall(APInt(8, 0x13), false); 167 APSInt CharBoundaryUnder(APInt(8, 0x7f), false); 168 APSInt CharBoundaryOver(APInt(8, 0x80), false); 169 APSInt CharLarge(APInt(8, 0xd9), false); 170 APSInt CharMax(APInt(8, 0xff), false); 171 172 EXPECT_FALSE(False.isNegative()); 173 EXPECT_TRUE(False.isNonNegative()); 174 EXPECT_FALSE(False.isStrictlyPositive()); 175 176 EXPECT_TRUE(True.isNegative()); 177 EXPECT_FALSE(True.isNonNegative()); 178 EXPECT_FALSE(True.isStrictlyPositive()); 179 180 EXPECT_FALSE(CharMin.isNegative()); 181 EXPECT_TRUE(CharMin.isNonNegative()); 182 EXPECT_FALSE(CharMin.isStrictlyPositive()); 183 184 EXPECT_FALSE(CharSmall.isNegative()); 185 EXPECT_TRUE(CharSmall.isNonNegative()); 186 EXPECT_TRUE(CharSmall.isStrictlyPositive()); 187 188 EXPECT_FALSE(CharBoundaryUnder.isNegative()); 189 EXPECT_TRUE(CharBoundaryUnder.isNonNegative()); 190 EXPECT_TRUE(CharBoundaryUnder.isStrictlyPositive()); 191 192 EXPECT_TRUE(CharBoundaryOver.isNegative()); 193 EXPECT_FALSE(CharBoundaryOver.isNonNegative()); 194 EXPECT_FALSE(CharBoundaryOver.isStrictlyPositive()); 195 196 EXPECT_TRUE(CharLarge.isNegative()); 197 EXPECT_FALSE(CharLarge.isNonNegative()); 198 EXPECT_FALSE(CharLarge.isStrictlyPositive()); 199 200 EXPECT_TRUE(CharMax.isNegative()); 201 EXPECT_FALSE(CharMax.isNonNegative()); 202 EXPECT_FALSE(CharMax.isStrictlyPositive()); 203 } 204 205 TEST(APSIntTest, UnsignedHighBit) { 206 APSInt False(APInt(1, 0)); 207 APSInt True(APInt(1, 1)); 208 APSInt CharMin(APInt(8, 0)); 209 APSInt CharSmall(APInt(8, 0x13)); 210 APSInt CharBoundaryUnder(APInt(8, 0x7f)); 211 APSInt CharBoundaryOver(APInt(8, 0x80)); 212 APSInt CharLarge(APInt(8, 0xd9)); 213 APSInt CharMax(APInt(8, 0xff)); 214 215 EXPECT_FALSE(False.isNegative()); 216 EXPECT_TRUE(False.isNonNegative()); 217 EXPECT_FALSE(False.isStrictlyPositive()); 218 219 EXPECT_FALSE(True.isNegative()); 220 EXPECT_TRUE(True.isNonNegative()); 221 EXPECT_TRUE(True.isStrictlyPositive()); 222 223 EXPECT_FALSE(CharMin.isNegative()); 224 EXPECT_TRUE(CharMin.isNonNegative()); 225 EXPECT_FALSE(CharMin.isStrictlyPositive()); 226 227 EXPECT_FALSE(CharSmall.isNegative()); 228 EXPECT_TRUE(CharSmall.isNonNegative()); 229 EXPECT_TRUE(CharSmall.isStrictlyPositive()); 230 231 EXPECT_FALSE(CharBoundaryUnder.isNegative()); 232 EXPECT_TRUE(CharBoundaryUnder.isNonNegative()); 233 EXPECT_TRUE(CharBoundaryUnder.isStrictlyPositive()); 234 235 EXPECT_FALSE(CharBoundaryOver.isNegative()); 236 EXPECT_TRUE(CharBoundaryOver.isNonNegative()); 237 EXPECT_TRUE(CharBoundaryOver.isStrictlyPositive()); 238 239 EXPECT_FALSE(CharLarge.isNegative()); 240 EXPECT_TRUE(CharLarge.isNonNegative()); 241 EXPECT_TRUE(CharLarge.isStrictlyPositive()); 242 243 EXPECT_FALSE(CharMax.isNegative()); 244 EXPECT_TRUE(CharMax.isNonNegative()); 245 EXPECT_TRUE(CharMax.isStrictlyPositive()); 246 } 247 248 } // end anonymous namespace 249