1 //===- llvm/unittest/ADT/APInt.cpp - APInt 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/APInt.h" 11 #include "llvm/ADT/ArrayRef.h" 12 #include "llvm/ADT/SmallString.h" 13 #include "gtest/gtest.h" 14 #include <array> 15 16 using namespace llvm; 17 18 namespace { 19 20 TEST(APIntTest, ValueInit) { 21 APInt Zero = APInt(); 22 EXPECT_TRUE(!Zero); 23 EXPECT_TRUE(!Zero.zext(64)); 24 EXPECT_TRUE(!Zero.sext(64)); 25 } 26 27 // Test that APInt shift left works when bitwidth > 64 and shiftamt == 0 28 TEST(APIntTest, ShiftLeftByZero) { 29 APInt One = APInt::getNullValue(65) + 1; 30 APInt Shl = One.shl(0); 31 EXPECT_TRUE(Shl[0]); 32 EXPECT_FALSE(Shl[1]); 33 } 34 35 TEST(APIntTest, i64_ArithmeticRightShiftNegative) { 36 const APInt neg_one(64, static_cast<uint64_t>(-1), true); 37 EXPECT_EQ(neg_one, neg_one.ashr(7)); 38 } 39 40 TEST(APIntTest, i64_LogicalRightShiftNegative) { 41 const APInt neg_one(128, static_cast<uint64_t>(-1), true); 42 EXPECT_EQ(0, neg_one.lshr(257)); 43 } 44 45 TEST(APIntTest, i128_NegativeCount) { 46 APInt Minus3(128, static_cast<uint64_t>(-3), true); 47 EXPECT_EQ(126u, Minus3.countLeadingOnes()); 48 EXPECT_EQ(-3, Minus3.getSExtValue()); 49 50 APInt Minus1(128, static_cast<uint64_t>(-1), true); 51 EXPECT_EQ(0u, Minus1.countLeadingZeros()); 52 EXPECT_EQ(128u, Minus1.countLeadingOnes()); 53 EXPECT_EQ(128u, Minus1.getActiveBits()); 54 EXPECT_EQ(0u, Minus1.countTrailingZeros()); 55 EXPECT_EQ(128u, Minus1.countTrailingOnes()); 56 EXPECT_EQ(128u, Minus1.countPopulation()); 57 EXPECT_EQ(-1, Minus1.getSExtValue()); 58 } 59 60 TEST(APIntTest, i33_Count) { 61 APInt i33minus2(33, static_cast<uint64_t>(-2), true); 62 EXPECT_EQ(0u, i33minus2.countLeadingZeros()); 63 EXPECT_EQ(32u, i33minus2.countLeadingOnes()); 64 EXPECT_EQ(33u, i33minus2.getActiveBits()); 65 EXPECT_EQ(1u, i33minus2.countTrailingZeros()); 66 EXPECT_EQ(32u, i33minus2.countPopulation()); 67 EXPECT_EQ(-2, i33minus2.getSExtValue()); 68 EXPECT_EQ(((uint64_t)-2)&((1ull<<33) -1), i33minus2.getZExtValue()); 69 } 70 71 TEST(APIntTest, i61_Count) { 72 APInt i61(61, 1 << 15); 73 EXPECT_EQ(45u, i61.countLeadingZeros()); 74 EXPECT_EQ(0u, i61.countLeadingOnes()); 75 EXPECT_EQ(16u, i61.getActiveBits()); 76 EXPECT_EQ(15u, i61.countTrailingZeros()); 77 EXPECT_EQ(1u, i61.countPopulation()); 78 EXPECT_EQ(static_cast<int64_t>(1 << 15), i61.getSExtValue()); 79 EXPECT_EQ(static_cast<uint64_t>(1 << 15), i61.getZExtValue()); 80 81 i61.setBits(8, 19); 82 EXPECT_EQ(42u, i61.countLeadingZeros()); 83 EXPECT_EQ(0u, i61.countLeadingOnes()); 84 EXPECT_EQ(19u, i61.getActiveBits()); 85 EXPECT_EQ(8u, i61.countTrailingZeros()); 86 EXPECT_EQ(11u, i61.countPopulation()); 87 EXPECT_EQ(static_cast<int64_t>((1 << 19) - (1 << 8)), i61.getSExtValue()); 88 EXPECT_EQ(static_cast<uint64_t>((1 << 19) - (1 << 8)), i61.getZExtValue()); 89 } 90 91 TEST(APIntTest, i65_Count) { 92 APInt i65(65, 0, true); 93 EXPECT_EQ(65u, i65.countLeadingZeros()); 94 EXPECT_EQ(0u, i65.countLeadingOnes()); 95 EXPECT_EQ(0u, i65.getActiveBits()); 96 EXPECT_EQ(1u, i65.getActiveWords()); 97 EXPECT_EQ(65u, i65.countTrailingZeros()); 98 EXPECT_EQ(0u, i65.countPopulation()); 99 100 APInt i65minus(65, 0, true); 101 i65minus.setBit(64); 102 EXPECT_EQ(0u, i65minus.countLeadingZeros()); 103 EXPECT_EQ(1u, i65minus.countLeadingOnes()); 104 EXPECT_EQ(65u, i65minus.getActiveBits()); 105 EXPECT_EQ(64u, i65minus.countTrailingZeros()); 106 EXPECT_EQ(1u, i65minus.countPopulation()); 107 } 108 109 TEST(APIntTest, i128_PositiveCount) { 110 APInt u128max = APInt::getAllOnesValue(128); 111 EXPECT_EQ(128u, u128max.countLeadingOnes()); 112 EXPECT_EQ(0u, u128max.countLeadingZeros()); 113 EXPECT_EQ(128u, u128max.getActiveBits()); 114 EXPECT_EQ(0u, u128max.countTrailingZeros()); 115 EXPECT_EQ(128u, u128max.countTrailingOnes()); 116 EXPECT_EQ(128u, u128max.countPopulation()); 117 118 APInt u64max(128, static_cast<uint64_t>(-1), false); 119 EXPECT_EQ(64u, u64max.countLeadingZeros()); 120 EXPECT_EQ(0u, u64max.countLeadingOnes()); 121 EXPECT_EQ(64u, u64max.getActiveBits()); 122 EXPECT_EQ(0u, u64max.countTrailingZeros()); 123 EXPECT_EQ(64u, u64max.countTrailingOnes()); 124 EXPECT_EQ(64u, u64max.countPopulation()); 125 EXPECT_EQ((uint64_t)~0ull, u64max.getZExtValue()); 126 127 APInt zero(128, 0, true); 128 EXPECT_EQ(128u, zero.countLeadingZeros()); 129 EXPECT_EQ(0u, zero.countLeadingOnes()); 130 EXPECT_EQ(0u, zero.getActiveBits()); 131 EXPECT_EQ(128u, zero.countTrailingZeros()); 132 EXPECT_EQ(0u, zero.countTrailingOnes()); 133 EXPECT_EQ(0u, zero.countPopulation()); 134 EXPECT_EQ(0u, zero.getSExtValue()); 135 EXPECT_EQ(0u, zero.getZExtValue()); 136 137 APInt one(128, 1, true); 138 EXPECT_EQ(127u, one.countLeadingZeros()); 139 EXPECT_EQ(0u, one.countLeadingOnes()); 140 EXPECT_EQ(1u, one.getActiveBits()); 141 EXPECT_EQ(0u, one.countTrailingZeros()); 142 EXPECT_EQ(1u, one.countTrailingOnes()); 143 EXPECT_EQ(1u, one.countPopulation()); 144 EXPECT_EQ(1, one.getSExtValue()); 145 EXPECT_EQ(1u, one.getZExtValue()); 146 147 APInt s128(128, 2, true); 148 EXPECT_EQ(126u, s128.countLeadingZeros()); 149 EXPECT_EQ(0u, s128.countLeadingOnes()); 150 EXPECT_EQ(2u, s128.getActiveBits()); 151 EXPECT_EQ(1u, s128.countTrailingZeros()); 152 EXPECT_EQ(0u, s128.countTrailingOnes()); 153 EXPECT_EQ(1u, s128.countPopulation()); 154 EXPECT_EQ(2, s128.getSExtValue()); 155 EXPECT_EQ(2u, s128.getZExtValue()); 156 157 // NOP Test 158 s128.setBits(42, 42); 159 EXPECT_EQ(126u, s128.countLeadingZeros()); 160 EXPECT_EQ(0u, s128.countLeadingOnes()); 161 EXPECT_EQ(2u, s128.getActiveBits()); 162 EXPECT_EQ(1u, s128.countTrailingZeros()); 163 EXPECT_EQ(0u, s128.countTrailingOnes()); 164 EXPECT_EQ(1u, s128.countPopulation()); 165 EXPECT_EQ(2, s128.getSExtValue()); 166 EXPECT_EQ(2u, s128.getZExtValue()); 167 168 s128.setBits(3, 32); 169 EXPECT_EQ(96u, s128.countLeadingZeros()); 170 EXPECT_EQ(0u, s128.countLeadingOnes()); 171 EXPECT_EQ(32u, s128.getActiveBits()); 172 EXPECT_EQ(33u, s128.getMinSignedBits()); 173 EXPECT_EQ(1u, s128.countTrailingZeros()); 174 EXPECT_EQ(0u, s128.countTrailingOnes()); 175 EXPECT_EQ(30u, s128.countPopulation()); 176 EXPECT_EQ(static_cast<uint32_t>((~0u << 3) | 2), s128.getZExtValue()); 177 178 s128.setBits(62, 128); 179 EXPECT_EQ(0u, s128.countLeadingZeros()); 180 EXPECT_EQ(66u, s128.countLeadingOnes()); 181 EXPECT_EQ(128u, s128.getActiveBits()); 182 EXPECT_EQ(63u, s128.getMinSignedBits()); 183 EXPECT_EQ(1u, s128.countTrailingZeros()); 184 EXPECT_EQ(0u, s128.countTrailingOnes()); 185 EXPECT_EQ(96u, s128.countPopulation()); 186 EXPECT_EQ(static_cast<int64_t>((3ull << 62) | 187 static_cast<uint32_t>((~0u << 3) | 2)), 188 s128.getSExtValue()); 189 } 190 191 TEST(APIntTest, i256) { 192 APInt s256(256, 15, true); 193 EXPECT_EQ(252u, s256.countLeadingZeros()); 194 EXPECT_EQ(0u, s256.countLeadingOnes()); 195 EXPECT_EQ(4u, s256.getActiveBits()); 196 EXPECT_EQ(0u, s256.countTrailingZeros()); 197 EXPECT_EQ(4u, s256.countTrailingOnes()); 198 EXPECT_EQ(4u, s256.countPopulation()); 199 EXPECT_EQ(15, s256.getSExtValue()); 200 EXPECT_EQ(15u, s256.getZExtValue()); 201 202 s256.setBits(62, 66); 203 EXPECT_EQ(190u, s256.countLeadingZeros()); 204 EXPECT_EQ(0u, s256.countLeadingOnes()); 205 EXPECT_EQ(66u, s256.getActiveBits()); 206 EXPECT_EQ(67u, s256.getMinSignedBits()); 207 EXPECT_EQ(0u, s256.countTrailingZeros()); 208 EXPECT_EQ(4u, s256.countTrailingOnes()); 209 EXPECT_EQ(8u, s256.countPopulation()); 210 211 s256.setBits(60, 256); 212 EXPECT_EQ(0u, s256.countLeadingZeros()); 213 EXPECT_EQ(196u, s256.countLeadingOnes()); 214 EXPECT_EQ(256u, s256.getActiveBits()); 215 EXPECT_EQ(61u, s256.getMinSignedBits()); 216 EXPECT_EQ(0u, s256.countTrailingZeros()); 217 EXPECT_EQ(4u, s256.countTrailingOnes()); 218 EXPECT_EQ(200u, s256.countPopulation()); 219 EXPECT_EQ(static_cast<int64_t>((~0ull << 60) | 15), s256.getSExtValue()); 220 } 221 222 TEST(APIntTest, i1) { 223 const APInt neg_two(1, static_cast<uint64_t>(-2), true); 224 const APInt neg_one(1, static_cast<uint64_t>(-1), true); 225 const APInt zero(1, 0); 226 const APInt one(1, 1); 227 const APInt two(1, 2); 228 229 EXPECT_EQ(0, neg_two.getSExtValue()); 230 EXPECT_EQ(-1, neg_one.getSExtValue()); 231 EXPECT_EQ(1u, neg_one.getZExtValue()); 232 EXPECT_EQ(0u, zero.getZExtValue()); 233 EXPECT_EQ(-1, one.getSExtValue()); 234 EXPECT_EQ(1u, one.getZExtValue()); 235 EXPECT_EQ(0u, two.getZExtValue()); 236 EXPECT_EQ(0, two.getSExtValue()); 237 238 // Basic equalities for 1-bit values. 239 EXPECT_EQ(zero, two); 240 EXPECT_EQ(zero, neg_two); 241 EXPECT_EQ(one, neg_one); 242 EXPECT_EQ(two, neg_two); 243 244 // Min/max signed values. 245 EXPECT_TRUE(zero.isMaxSignedValue()); 246 EXPECT_FALSE(one.isMaxSignedValue()); 247 EXPECT_FALSE(zero.isMinSignedValue()); 248 EXPECT_TRUE(one.isMinSignedValue()); 249 250 // Additions. 251 EXPECT_EQ(two, one + one); 252 EXPECT_EQ(zero, neg_one + one); 253 EXPECT_EQ(neg_two, neg_one + neg_one); 254 255 // Subtractions. 256 EXPECT_EQ(neg_two, neg_one - one); 257 EXPECT_EQ(two, one - neg_one); 258 EXPECT_EQ(zero, one - one); 259 260 // And 261 EXPECT_EQ(zero, zero & zero); 262 EXPECT_EQ(zero, one & zero); 263 EXPECT_EQ(zero, zero & one); 264 EXPECT_EQ(one, one & one); 265 EXPECT_EQ(zero, zero & zero); 266 EXPECT_EQ(zero, neg_one & zero); 267 EXPECT_EQ(zero, zero & neg_one); 268 EXPECT_EQ(neg_one, neg_one & neg_one); 269 270 // Or 271 EXPECT_EQ(zero, zero | zero); 272 EXPECT_EQ(one, one | zero); 273 EXPECT_EQ(one, zero | one); 274 EXPECT_EQ(one, one | one); 275 EXPECT_EQ(zero, zero | zero); 276 EXPECT_EQ(neg_one, neg_one | zero); 277 EXPECT_EQ(neg_one, zero | neg_one); 278 EXPECT_EQ(neg_one, neg_one | neg_one); 279 280 // Xor 281 EXPECT_EQ(zero, zero ^ zero); 282 EXPECT_EQ(one, one ^ zero); 283 EXPECT_EQ(one, zero ^ one); 284 EXPECT_EQ(zero, one ^ one); 285 EXPECT_EQ(zero, zero ^ zero); 286 EXPECT_EQ(neg_one, neg_one ^ zero); 287 EXPECT_EQ(neg_one, zero ^ neg_one); 288 EXPECT_EQ(zero, neg_one ^ neg_one); 289 290 // Shifts. 291 EXPECT_EQ(zero, one << one); 292 EXPECT_EQ(one, one << zero); 293 EXPECT_EQ(zero, one.shl(1)); 294 EXPECT_EQ(one, one.shl(0)); 295 EXPECT_EQ(zero, one.lshr(1)); 296 EXPECT_EQ(zero, one.ashr(1)); 297 298 // Rotates. 299 EXPECT_EQ(one, one.rotl(0)); 300 EXPECT_EQ(one, one.rotl(1)); 301 EXPECT_EQ(one, one.rotr(0)); 302 EXPECT_EQ(one, one.rotr(1)); 303 304 // Multiplies. 305 EXPECT_EQ(neg_one, neg_one * one); 306 EXPECT_EQ(neg_one, one * neg_one); 307 EXPECT_EQ(one, neg_one * neg_one); 308 EXPECT_EQ(one, one * one); 309 310 // Divides. 311 EXPECT_EQ(neg_one, one.sdiv(neg_one)); 312 EXPECT_EQ(neg_one, neg_one.sdiv(one)); 313 EXPECT_EQ(one, neg_one.sdiv(neg_one)); 314 EXPECT_EQ(one, one.sdiv(one)); 315 316 EXPECT_EQ(neg_one, one.udiv(neg_one)); 317 EXPECT_EQ(neg_one, neg_one.udiv(one)); 318 EXPECT_EQ(one, neg_one.udiv(neg_one)); 319 EXPECT_EQ(one, one.udiv(one)); 320 321 // Remainders. 322 EXPECT_EQ(zero, neg_one.srem(one)); 323 EXPECT_EQ(zero, neg_one.urem(one)); 324 EXPECT_EQ(zero, one.srem(neg_one)); 325 326 // sdivrem 327 { 328 APInt q(8, 0); 329 APInt r(8, 0); 330 APInt one(8, 1); 331 APInt two(8, 2); 332 APInt nine(8, 9); 333 APInt four(8, 4); 334 335 EXPECT_EQ(nine.srem(two), one); 336 EXPECT_EQ(nine.srem(-two), one); 337 EXPECT_EQ((-nine).srem(two), -one); 338 EXPECT_EQ((-nine).srem(-two), -one); 339 340 APInt::sdivrem(nine, two, q, r); 341 EXPECT_EQ(four, q); 342 EXPECT_EQ(one, r); 343 APInt::sdivrem(-nine, two, q, r); 344 EXPECT_EQ(-four, q); 345 EXPECT_EQ(-one, r); 346 APInt::sdivrem(nine, -two, q, r); 347 EXPECT_EQ(-four, q); 348 EXPECT_EQ(one, r); 349 APInt::sdivrem(-nine, -two, q, r); 350 EXPECT_EQ(four, q); 351 EXPECT_EQ(-one, r); 352 } 353 } 354 355 TEST(APIntTest, compare) { 356 std::array<APInt, 5> testVals{{ 357 APInt{16, 2}, 358 APInt{16, 1}, 359 APInt{16, 0}, 360 APInt{16, (uint64_t)-1, true}, 361 APInt{16, (uint64_t)-2, true}, 362 }}; 363 364 for (auto &arg1 : testVals) 365 for (auto &arg2 : testVals) { 366 auto uv1 = arg1.getZExtValue(); 367 auto uv2 = arg2.getZExtValue(); 368 auto sv1 = arg1.getSExtValue(); 369 auto sv2 = arg2.getSExtValue(); 370 371 EXPECT_EQ(uv1 < uv2, arg1.ult(arg2)); 372 EXPECT_EQ(uv1 <= uv2, arg1.ule(arg2)); 373 EXPECT_EQ(uv1 > uv2, arg1.ugt(arg2)); 374 EXPECT_EQ(uv1 >= uv2, arg1.uge(arg2)); 375 376 EXPECT_EQ(sv1 < sv2, arg1.slt(arg2)); 377 EXPECT_EQ(sv1 <= sv2, arg1.sle(arg2)); 378 EXPECT_EQ(sv1 > sv2, arg1.sgt(arg2)); 379 EXPECT_EQ(sv1 >= sv2, arg1.sge(arg2)); 380 381 EXPECT_EQ(uv1 < uv2, arg1.ult(uv2)); 382 EXPECT_EQ(uv1 <= uv2, arg1.ule(uv2)); 383 EXPECT_EQ(uv1 > uv2, arg1.ugt(uv2)); 384 EXPECT_EQ(uv1 >= uv2, arg1.uge(uv2)); 385 386 EXPECT_EQ(sv1 < sv2, arg1.slt(sv2)); 387 EXPECT_EQ(sv1 <= sv2, arg1.sle(sv2)); 388 EXPECT_EQ(sv1 > sv2, arg1.sgt(sv2)); 389 EXPECT_EQ(sv1 >= sv2, arg1.sge(sv2)); 390 } 391 } 392 393 TEST(APIntTest, compareWithRawIntegers) { 394 EXPECT_TRUE(!APInt(8, 1).uge(256)); 395 EXPECT_TRUE(!APInt(8, 1).ugt(256)); 396 EXPECT_TRUE( APInt(8, 1).ule(256)); 397 EXPECT_TRUE( APInt(8, 1).ult(256)); 398 EXPECT_TRUE(!APInt(8, 1).sge(256)); 399 EXPECT_TRUE(!APInt(8, 1).sgt(256)); 400 EXPECT_TRUE( APInt(8, 1).sle(256)); 401 EXPECT_TRUE( APInt(8, 1).slt(256)); 402 EXPECT_TRUE(!(APInt(8, 0) == 256)); 403 EXPECT_TRUE( APInt(8, 0) != 256); 404 EXPECT_TRUE(!(APInt(8, 1) == 256)); 405 EXPECT_TRUE( APInt(8, 1) != 256); 406 407 auto uint64max = UINT64_MAX; 408 auto int64max = INT64_MAX; 409 auto int64min = INT64_MIN; 410 411 auto u64 = APInt{128, uint64max}; 412 auto s64 = APInt{128, static_cast<uint64_t>(int64max), true}; 413 auto big = u64 + 1; 414 415 EXPECT_TRUE( u64.uge(uint64max)); 416 EXPECT_TRUE(!u64.ugt(uint64max)); 417 EXPECT_TRUE( u64.ule(uint64max)); 418 EXPECT_TRUE(!u64.ult(uint64max)); 419 EXPECT_TRUE( u64.sge(int64max)); 420 EXPECT_TRUE( u64.sgt(int64max)); 421 EXPECT_TRUE(!u64.sle(int64max)); 422 EXPECT_TRUE(!u64.slt(int64max)); 423 EXPECT_TRUE( u64.sge(int64min)); 424 EXPECT_TRUE( u64.sgt(int64min)); 425 EXPECT_TRUE(!u64.sle(int64min)); 426 EXPECT_TRUE(!u64.slt(int64min)); 427 428 EXPECT_TRUE(u64 == uint64max); 429 EXPECT_TRUE(u64 != int64max); 430 EXPECT_TRUE(u64 != int64min); 431 432 EXPECT_TRUE(!s64.uge(uint64max)); 433 EXPECT_TRUE(!s64.ugt(uint64max)); 434 EXPECT_TRUE( s64.ule(uint64max)); 435 EXPECT_TRUE( s64.ult(uint64max)); 436 EXPECT_TRUE( s64.sge(int64max)); 437 EXPECT_TRUE(!s64.sgt(int64max)); 438 EXPECT_TRUE( s64.sle(int64max)); 439 EXPECT_TRUE(!s64.slt(int64max)); 440 EXPECT_TRUE( s64.sge(int64min)); 441 EXPECT_TRUE( s64.sgt(int64min)); 442 EXPECT_TRUE(!s64.sle(int64min)); 443 EXPECT_TRUE(!s64.slt(int64min)); 444 445 EXPECT_TRUE(s64 != uint64max); 446 EXPECT_TRUE(s64 == int64max); 447 EXPECT_TRUE(s64 != int64min); 448 449 EXPECT_TRUE( big.uge(uint64max)); 450 EXPECT_TRUE( big.ugt(uint64max)); 451 EXPECT_TRUE(!big.ule(uint64max)); 452 EXPECT_TRUE(!big.ult(uint64max)); 453 EXPECT_TRUE( big.sge(int64max)); 454 EXPECT_TRUE( big.sgt(int64max)); 455 EXPECT_TRUE(!big.sle(int64max)); 456 EXPECT_TRUE(!big.slt(int64max)); 457 EXPECT_TRUE( big.sge(int64min)); 458 EXPECT_TRUE( big.sgt(int64min)); 459 EXPECT_TRUE(!big.sle(int64min)); 460 EXPECT_TRUE(!big.slt(int64min)); 461 462 EXPECT_TRUE(big != uint64max); 463 EXPECT_TRUE(big != int64max); 464 EXPECT_TRUE(big != int64min); 465 } 466 467 TEST(APIntTest, compareWithInt64Min) { 468 int64_t edge = INT64_MIN; 469 int64_t edgeP1 = edge + 1; 470 int64_t edgeM1 = INT64_MAX; 471 auto a = APInt{64, static_cast<uint64_t>(edge), true}; 472 473 EXPECT_TRUE(!a.slt(edge)); 474 EXPECT_TRUE( a.sle(edge)); 475 EXPECT_TRUE(!a.sgt(edge)); 476 EXPECT_TRUE( a.sge(edge)); 477 EXPECT_TRUE( a.slt(edgeP1)); 478 EXPECT_TRUE( a.sle(edgeP1)); 479 EXPECT_TRUE(!a.sgt(edgeP1)); 480 EXPECT_TRUE(!a.sge(edgeP1)); 481 EXPECT_TRUE( a.slt(edgeM1)); 482 EXPECT_TRUE( a.sle(edgeM1)); 483 EXPECT_TRUE(!a.sgt(edgeM1)); 484 EXPECT_TRUE(!a.sge(edgeM1)); 485 } 486 487 TEST(APIntTest, compareWithHalfInt64Max) { 488 uint64_t edge = 0x4000000000000000; 489 uint64_t edgeP1 = edge + 1; 490 uint64_t edgeM1 = edge - 1; 491 auto a = APInt{64, edge}; 492 493 EXPECT_TRUE(!a.ult(edge)); 494 EXPECT_TRUE( a.ule(edge)); 495 EXPECT_TRUE(!a.ugt(edge)); 496 EXPECT_TRUE( a.uge(edge)); 497 EXPECT_TRUE( a.ult(edgeP1)); 498 EXPECT_TRUE( a.ule(edgeP1)); 499 EXPECT_TRUE(!a.ugt(edgeP1)); 500 EXPECT_TRUE(!a.uge(edgeP1)); 501 EXPECT_TRUE(!a.ult(edgeM1)); 502 EXPECT_TRUE(!a.ule(edgeM1)); 503 EXPECT_TRUE( a.ugt(edgeM1)); 504 EXPECT_TRUE( a.uge(edgeM1)); 505 506 EXPECT_TRUE(!a.slt(edge)); 507 EXPECT_TRUE( a.sle(edge)); 508 EXPECT_TRUE(!a.sgt(edge)); 509 EXPECT_TRUE( a.sge(edge)); 510 EXPECT_TRUE( a.slt(edgeP1)); 511 EXPECT_TRUE( a.sle(edgeP1)); 512 EXPECT_TRUE(!a.sgt(edgeP1)); 513 EXPECT_TRUE(!a.sge(edgeP1)); 514 EXPECT_TRUE(!a.slt(edgeM1)); 515 EXPECT_TRUE(!a.sle(edgeM1)); 516 EXPECT_TRUE( a.sgt(edgeM1)); 517 EXPECT_TRUE( a.sge(edgeM1)); 518 } 519 520 TEST(APIntTest, compareLargeIntegers) { 521 // Make sure all the combinations of signed comparisons work with big ints. 522 auto One = APInt{128, static_cast<uint64_t>(1), true}; 523 auto Two = APInt{128, static_cast<uint64_t>(2), true}; 524 auto MinusOne = APInt{128, static_cast<uint64_t>(-1), true}; 525 auto MinusTwo = APInt{128, static_cast<uint64_t>(-2), true}; 526 527 EXPECT_TRUE(!One.slt(One)); 528 EXPECT_TRUE(!Two.slt(One)); 529 EXPECT_TRUE(MinusOne.slt(One)); 530 EXPECT_TRUE(MinusTwo.slt(One)); 531 532 EXPECT_TRUE(One.slt(Two)); 533 EXPECT_TRUE(!Two.slt(Two)); 534 EXPECT_TRUE(MinusOne.slt(Two)); 535 EXPECT_TRUE(MinusTwo.slt(Two)); 536 537 EXPECT_TRUE(!One.slt(MinusOne)); 538 EXPECT_TRUE(!Two.slt(MinusOne)); 539 EXPECT_TRUE(!MinusOne.slt(MinusOne)); 540 EXPECT_TRUE(MinusTwo.slt(MinusOne)); 541 542 EXPECT_TRUE(!One.slt(MinusTwo)); 543 EXPECT_TRUE(!Two.slt(MinusTwo)); 544 EXPECT_TRUE(!MinusOne.slt(MinusTwo)); 545 EXPECT_TRUE(!MinusTwo.slt(MinusTwo)); 546 } 547 548 TEST(APIntTest, binaryOpsWithRawIntegers) { 549 // Single word check. 550 uint64_t E1 = 0x2CA7F46BF6569915ULL; 551 APInt A1(64, E1); 552 553 EXPECT_EQ(A1 & E1, E1); 554 EXPECT_EQ(A1 & 0, 0); 555 EXPECT_EQ(A1 & 1, 1); 556 EXPECT_EQ(A1 & 5, 5); 557 EXPECT_EQ(A1 & UINT64_MAX, E1); 558 559 EXPECT_EQ(A1 | E1, E1); 560 EXPECT_EQ(A1 | 0, E1); 561 EXPECT_EQ(A1 | 1, E1); 562 EXPECT_EQ(A1 | 2, E1 | 2); 563 EXPECT_EQ(A1 | UINT64_MAX, UINT64_MAX); 564 565 EXPECT_EQ(A1 ^ E1, 0); 566 EXPECT_EQ(A1 ^ 0, E1); 567 EXPECT_EQ(A1 ^ 1, E1 ^ 1); 568 EXPECT_EQ(A1 ^ 7, E1 ^ 7); 569 EXPECT_EQ(A1 ^ UINT64_MAX, ~E1); 570 571 // Multiword check. 572 uint64_t N = 0xEB6EB136591CBA21ULL; 573 APInt::WordType E2[4] = { 574 N, 575 0x7B9358BD6A33F10AULL, 576 0x7E7FFA5EADD8846ULL, 577 0x305F341CA00B613DULL 578 }; 579 APInt A2(APInt::APINT_BITS_PER_WORD*4, E2); 580 581 EXPECT_EQ(A2 & N, N); 582 EXPECT_EQ(A2 & 0, 0); 583 EXPECT_EQ(A2 & 1, 1); 584 EXPECT_EQ(A2 & 5, 1); 585 EXPECT_EQ(A2 & UINT64_MAX, N); 586 587 EXPECT_EQ(A2 | N, A2); 588 EXPECT_EQ(A2 | 0, A2); 589 EXPECT_EQ(A2 | 1, A2); 590 EXPECT_EQ(A2 | 2, A2 + 2); 591 EXPECT_EQ(A2 | UINT64_MAX, A2 - N + UINT64_MAX); 592 593 EXPECT_EQ(A2 ^ N, A2 - N); 594 EXPECT_EQ(A2 ^ 0, A2); 595 EXPECT_EQ(A2 ^ 1, A2 - 1); 596 EXPECT_EQ(A2 ^ 7, A2 + 5); 597 EXPECT_EQ(A2 ^ UINT64_MAX, A2 - N + ~N); 598 } 599 600 TEST(APIntTest, rvalue_arithmetic) { 601 // Test all combinations of lvalue/rvalue lhs/rhs of add/sub 602 603 // Lamdba to return an APInt by value, but also provide the raw value of the 604 // allocated data. 605 auto getRValue = [](const char *HexString, uint64_t const *&RawData) { 606 APInt V(129, HexString, 16); 607 RawData = V.getRawData(); 608 return V; 609 }; 610 611 APInt One(129, "1", 16); 612 APInt Two(129, "2", 16); 613 APInt Three(129, "3", 16); 614 APInt MinusOne = -One; 615 616 const uint64_t *RawDataL = nullptr; 617 const uint64_t *RawDataR = nullptr; 618 619 { 620 // 1 + 1 = 2 621 APInt AddLL = One + One; 622 EXPECT_EQ(AddLL, Two); 623 624 APInt AddLR = One + getRValue("1", RawDataR); 625 EXPECT_EQ(AddLR, Two); 626 EXPECT_EQ(AddLR.getRawData(), RawDataR); 627 628 APInt AddRL = getRValue("1", RawDataL) + One; 629 EXPECT_EQ(AddRL, Two); 630 EXPECT_EQ(AddRL.getRawData(), RawDataL); 631 632 APInt AddRR = getRValue("1", RawDataL) + getRValue("1", RawDataR); 633 EXPECT_EQ(AddRR, Two); 634 EXPECT_EQ(AddRR.getRawData(), RawDataR); 635 636 // LValue's and constants 637 APInt AddLK = One + 1; 638 EXPECT_EQ(AddLK, Two); 639 640 APInt AddKL = 1 + One; 641 EXPECT_EQ(AddKL, Two); 642 643 // RValue's and constants 644 APInt AddRK = getRValue("1", RawDataL) + 1; 645 EXPECT_EQ(AddRK, Two); 646 EXPECT_EQ(AddRK.getRawData(), RawDataL); 647 648 APInt AddKR = 1 + getRValue("1", RawDataR); 649 EXPECT_EQ(AddKR, Two); 650 EXPECT_EQ(AddKR.getRawData(), RawDataR); 651 } 652 653 { 654 // 0x0,FFFF...FFFF + 0x2 = 0x100...0001 655 APInt AllOnes(129, "0FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 16); 656 APInt HighOneLowOne(129, "100000000000000000000000000000001", 16); 657 658 APInt AddLL = AllOnes + Two; 659 EXPECT_EQ(AddLL, HighOneLowOne); 660 661 APInt AddLR = AllOnes + getRValue("2", RawDataR); 662 EXPECT_EQ(AddLR, HighOneLowOne); 663 EXPECT_EQ(AddLR.getRawData(), RawDataR); 664 665 APInt AddRL = getRValue("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", RawDataL) + Two; 666 EXPECT_EQ(AddRL, HighOneLowOne); 667 EXPECT_EQ(AddRL.getRawData(), RawDataL); 668 669 APInt AddRR = getRValue("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", RawDataL) + 670 getRValue("2", RawDataR); 671 EXPECT_EQ(AddRR, HighOneLowOne); 672 EXPECT_EQ(AddRR.getRawData(), RawDataR); 673 674 // LValue's and constants 675 APInt AddLK = AllOnes + 2; 676 EXPECT_EQ(AddLK, HighOneLowOne); 677 678 APInt AddKL = 2 + AllOnes; 679 EXPECT_EQ(AddKL, HighOneLowOne); 680 681 // RValue's and constants 682 APInt AddRK = getRValue("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", RawDataL) + 2; 683 EXPECT_EQ(AddRK, HighOneLowOne); 684 EXPECT_EQ(AddRK.getRawData(), RawDataL); 685 686 APInt AddKR = 2 + getRValue("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", RawDataR); 687 EXPECT_EQ(AddKR, HighOneLowOne); 688 EXPECT_EQ(AddKR.getRawData(), RawDataR); 689 } 690 691 { 692 // 2 - 1 = 1 693 APInt SubLL = Two - One; 694 EXPECT_EQ(SubLL, One); 695 696 APInt SubLR = Two - getRValue("1", RawDataR); 697 EXPECT_EQ(SubLR, One); 698 EXPECT_EQ(SubLR.getRawData(), RawDataR); 699 700 APInt SubRL = getRValue("2", RawDataL) - One; 701 EXPECT_EQ(SubRL, One); 702 EXPECT_EQ(SubRL.getRawData(), RawDataL); 703 704 APInt SubRR = getRValue("2", RawDataL) - getRValue("1", RawDataR); 705 EXPECT_EQ(SubRR, One); 706 EXPECT_EQ(SubRR.getRawData(), RawDataR); 707 708 // LValue's and constants 709 APInt SubLK = Two - 1; 710 EXPECT_EQ(SubLK, One); 711 712 APInt SubKL = 2 - One; 713 EXPECT_EQ(SubKL, One); 714 715 // RValue's and constants 716 APInt SubRK = getRValue("2", RawDataL) - 1; 717 EXPECT_EQ(SubRK, One); 718 EXPECT_EQ(SubRK.getRawData(), RawDataL); 719 720 APInt SubKR = 2 - getRValue("1", RawDataR); 721 EXPECT_EQ(SubKR, One); 722 EXPECT_EQ(SubKR.getRawData(), RawDataR); 723 } 724 725 { 726 // 0x100...0001 - 0x0,FFFF...FFFF = 0x2 727 APInt AllOnes(129, "0FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 16); 728 APInt HighOneLowOne(129, "100000000000000000000000000000001", 16); 729 730 APInt SubLL = HighOneLowOne - AllOnes; 731 EXPECT_EQ(SubLL, Two); 732 733 APInt SubLR = HighOneLowOne - 734 getRValue("0FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", RawDataR); 735 EXPECT_EQ(SubLR, Two); 736 EXPECT_EQ(SubLR.getRawData(), RawDataR); 737 738 APInt SubRL = getRValue("100000000000000000000000000000001", RawDataL) - 739 AllOnes; 740 EXPECT_EQ(SubRL, Two); 741 EXPECT_EQ(SubRL.getRawData(), RawDataL); 742 743 APInt SubRR = getRValue("100000000000000000000000000000001", RawDataL) - 744 getRValue("0FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", RawDataR); 745 EXPECT_EQ(SubRR, Two); 746 EXPECT_EQ(SubRR.getRawData(), RawDataR); 747 748 // LValue's and constants 749 // 0x100...0001 - 0x2 = 0x0,FFFF...FFFF 750 APInt SubLK = HighOneLowOne - 2; 751 EXPECT_EQ(SubLK, AllOnes); 752 753 // 2 - (-1) = 3 754 APInt SubKL = 2 - MinusOne; 755 EXPECT_EQ(SubKL, Three); 756 757 // RValue's and constants 758 // 0x100...0001 - 0x2 = 0x0,FFFF...FFFF 759 APInt SubRK = getRValue("100000000000000000000000000000001", RawDataL) - 2; 760 EXPECT_EQ(SubRK, AllOnes); 761 EXPECT_EQ(SubRK.getRawData(), RawDataL); 762 763 APInt SubKR = 2 - getRValue("1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", RawDataR); 764 EXPECT_EQ(SubKR, Three); 765 EXPECT_EQ(SubKR.getRawData(), RawDataR); 766 } 767 } 768 769 TEST(APIntTest, rvalue_bitwise) { 770 // Test all combinations of lvalue/rvalue lhs/rhs of and/or/xor 771 772 // Lamdba to return an APInt by value, but also provide the raw value of the 773 // allocated data. 774 auto getRValue = [](const char *HexString, uint64_t const *&RawData) { 775 APInt V(129, HexString, 16); 776 RawData = V.getRawData(); 777 return V; 778 }; 779 780 APInt Ten(129, "A", 16); 781 APInt Twelve(129, "C", 16); 782 783 const uint64_t *RawDataL = nullptr; 784 const uint64_t *RawDataR = nullptr; 785 786 { 787 // 12 & 10 = 8 788 APInt AndLL = Ten & Twelve; 789 EXPECT_EQ(AndLL, 0x8); 790 791 APInt AndLR = Ten & getRValue("C", RawDataR); 792 EXPECT_EQ(AndLR, 0x8); 793 EXPECT_EQ(AndLR.getRawData(), RawDataR); 794 795 APInt AndRL = getRValue("A", RawDataL) & Twelve; 796 EXPECT_EQ(AndRL, 0x8); 797 EXPECT_EQ(AndRL.getRawData(), RawDataL); 798 799 APInt AndRR = getRValue("A", RawDataL) & getRValue("C", RawDataR); 800 EXPECT_EQ(AndRR, 0x8); 801 EXPECT_EQ(AndRR.getRawData(), RawDataR); 802 803 // LValue's and constants 804 APInt AndLK = Ten & 0xc; 805 EXPECT_EQ(AndLK, 0x8); 806 807 APInt AndKL = 0xa & Twelve; 808 EXPECT_EQ(AndKL, 0x8); 809 810 // RValue's and constants 811 APInt AndRK = getRValue("A", RawDataL) & 0xc; 812 EXPECT_EQ(AndRK, 0x8); 813 EXPECT_EQ(AndRK.getRawData(), RawDataL); 814 815 APInt AndKR = 0xa & getRValue("C", RawDataR); 816 EXPECT_EQ(AndKR, 0x8); 817 EXPECT_EQ(AndKR.getRawData(), RawDataR); 818 } 819 820 { 821 // 12 | 10 = 14 822 APInt OrLL = Ten | Twelve; 823 EXPECT_EQ(OrLL, 0xe); 824 825 APInt OrLR = Ten | getRValue("C", RawDataR); 826 EXPECT_EQ(OrLR, 0xe); 827 EXPECT_EQ(OrLR.getRawData(), RawDataR); 828 829 APInt OrRL = getRValue("A", RawDataL) | Twelve; 830 EXPECT_EQ(OrRL, 0xe); 831 EXPECT_EQ(OrRL.getRawData(), RawDataL); 832 833 APInt OrRR = getRValue("A", RawDataL) | getRValue("C", RawDataR); 834 EXPECT_EQ(OrRR, 0xe); 835 EXPECT_EQ(OrRR.getRawData(), RawDataR); 836 837 // LValue's and constants 838 APInt OrLK = Ten | 0xc; 839 EXPECT_EQ(OrLK, 0xe); 840 841 APInt OrKL = 0xa | Twelve; 842 EXPECT_EQ(OrKL, 0xe); 843 844 // RValue's and constants 845 APInt OrRK = getRValue("A", RawDataL) | 0xc; 846 EXPECT_EQ(OrRK, 0xe); 847 EXPECT_EQ(OrRK.getRawData(), RawDataL); 848 849 APInt OrKR = 0xa | getRValue("C", RawDataR); 850 EXPECT_EQ(OrKR, 0xe); 851 EXPECT_EQ(OrKR.getRawData(), RawDataR); 852 } 853 854 { 855 // 12 ^ 10 = 6 856 APInt XorLL = Ten ^ Twelve; 857 EXPECT_EQ(XorLL, 0x6); 858 859 APInt XorLR = Ten ^ getRValue("C", RawDataR); 860 EXPECT_EQ(XorLR, 0x6); 861 EXPECT_EQ(XorLR.getRawData(), RawDataR); 862 863 APInt XorRL = getRValue("A", RawDataL) ^ Twelve; 864 EXPECT_EQ(XorRL, 0x6); 865 EXPECT_EQ(XorRL.getRawData(), RawDataL); 866 867 APInt XorRR = getRValue("A", RawDataL) ^ getRValue("C", RawDataR); 868 EXPECT_EQ(XorRR, 0x6); 869 EXPECT_EQ(XorRR.getRawData(), RawDataR); 870 871 // LValue's and constants 872 APInt XorLK = Ten ^ 0xc; 873 EXPECT_EQ(XorLK, 0x6); 874 875 APInt XorKL = 0xa ^ Twelve; 876 EXPECT_EQ(XorKL, 0x6); 877 878 // RValue's and constants 879 APInt XorRK = getRValue("A", RawDataL) ^ 0xc; 880 EXPECT_EQ(XorRK, 0x6); 881 EXPECT_EQ(XorRK.getRawData(), RawDataL); 882 883 APInt XorKR = 0xa ^ getRValue("C", RawDataR); 884 EXPECT_EQ(XorKR, 0x6); 885 EXPECT_EQ(XorKR.getRawData(), RawDataR); 886 } 887 } 888 889 TEST(APIntTest, rvalue_invert) { 890 // Lamdba to return an APInt by value, but also provide the raw value of the 891 // allocated data. 892 auto getRValue = [](const char *HexString, uint64_t const *&RawData) { 893 APInt V(129, HexString, 16); 894 RawData = V.getRawData(); 895 return V; 896 }; 897 898 APInt One(129, 1); 899 APInt NegativeTwo(129, -2ULL, true); 900 901 const uint64_t *RawData = nullptr; 902 903 { 904 // ~1 = -2 905 APInt NegL = ~One; 906 EXPECT_EQ(NegL, NegativeTwo); 907 908 APInt NegR = ~getRValue("1", RawData); 909 EXPECT_EQ(NegR, NegativeTwo); 910 EXPECT_EQ(NegR.getRawData(), RawData); 911 } 912 } 913 914 // Tests different div/rem varaints using scheme (a * b + c) / a 915 void testDiv(APInt a, APInt b, APInt c) { 916 ASSERT_TRUE(a.uge(b)); // Must: a >= b 917 ASSERT_TRUE(a.ugt(c)); // Must: a > c 918 919 auto p = a * b + c; 920 921 auto q = p.udiv(a); 922 auto r = p.urem(a); 923 EXPECT_EQ(b, q); 924 EXPECT_EQ(c, r); 925 APInt::udivrem(p, a, q, r); 926 EXPECT_EQ(b, q); 927 EXPECT_EQ(c, r); 928 q = p.sdiv(a); 929 r = p.srem(a); 930 EXPECT_EQ(b, q); 931 EXPECT_EQ(c, r); 932 APInt::sdivrem(p, a, q, r); 933 EXPECT_EQ(b, q); 934 EXPECT_EQ(c, r); 935 936 if (b.ugt(c)) { // Test also symmetric case 937 q = p.udiv(b); 938 r = p.urem(b); 939 EXPECT_EQ(a, q); 940 EXPECT_EQ(c, r); 941 APInt::udivrem(p, b, q, r); 942 EXPECT_EQ(a, q); 943 EXPECT_EQ(c, r); 944 q = p.sdiv(b); 945 r = p.srem(b); 946 EXPECT_EQ(a, q); 947 EXPECT_EQ(c, r); 948 APInt::sdivrem(p, b, q, r); 949 EXPECT_EQ(a, q); 950 EXPECT_EQ(c, r); 951 } 952 } 953 954 TEST(APIntTest, divrem_big1) { 955 // Tests KnuthDiv rare step D6 956 testDiv({256, "1ffffffffffffffff", 16}, 957 {256, "1ffffffffffffffff", 16}, 958 {256, 0}); 959 } 960 961 TEST(APIntTest, divrem_big2) { 962 // Tests KnuthDiv rare step D6 963 testDiv({1024, "112233ceff" 964 "cecece000000ffffffffffffffffffff" 965 "ffffffffffffffffffffffffffffffff" 966 "ffffffffffffffffffffffffffffffff" 967 "ffffffffffffffffffffffffffffff33", 16}, 968 {1024, "111111ffffffffffffffff" 969 "ffffffffffffffffffffffffffffffff" 970 "fffffffffffffffffffffffffffffccf" 971 "ffffffffffffffffffffffffffffff00", 16}, 972 {1024, 7919}); 973 } 974 975 TEST(APIntTest, divrem_big3) { 976 // Tests KnuthDiv case without shift 977 testDiv({256, "80000001ffffffffffffffff", 16}, 978 {256, "ffffffffffffff0000000", 16}, 979 {256, 4219}); 980 } 981 982 TEST(APIntTest, divrem_big4) { 983 // Tests heap allocation in divide() enfoced by huge numbers 984 testDiv(APInt{4096, 5}.shl(2001), 985 APInt{4096, 1}.shl(2000), 986 APInt{4096, 4219*13}); 987 } 988 989 TEST(APIntTest, divrem_big5) { 990 // Tests one word divisor case of divide() 991 testDiv(APInt{1024, 19}.shl(811), 992 APInt{1024, 4356013}, // one word 993 APInt{1024, 1}); 994 } 995 996 TEST(APIntTest, divrem_big6) { 997 // Tests some rare "borrow" cases in D4 step 998 testDiv(APInt{512, "ffffffffffffffff00000000000000000000000001", 16}, 999 APInt{512, "10000000000000001000000000000001", 16}, 1000 APInt{512, "10000000000000000000000000000000", 16}); 1001 } 1002 1003 TEST(APIntTest, divrem_big7) { 1004 // Yet another test for KnuthDiv rare step D6. 1005 testDiv({224, "800000008000000200000005", 16}, 1006 {224, "fffffffd", 16}, 1007 {224, "80000000800000010000000f", 16}); 1008 } 1009 1010 TEST(APIntTest, fromString) { 1011 EXPECT_EQ(APInt(32, 0), APInt(32, "0", 2)); 1012 EXPECT_EQ(APInt(32, 1), APInt(32, "1", 2)); 1013 EXPECT_EQ(APInt(32, 2), APInt(32, "10", 2)); 1014 EXPECT_EQ(APInt(32, 3), APInt(32, "11", 2)); 1015 EXPECT_EQ(APInt(32, 4), APInt(32, "100", 2)); 1016 1017 EXPECT_EQ(APInt(32, 0), APInt(32, "+0", 2)); 1018 EXPECT_EQ(APInt(32, 1), APInt(32, "+1", 2)); 1019 EXPECT_EQ(APInt(32, 2), APInt(32, "+10", 2)); 1020 EXPECT_EQ(APInt(32, 3), APInt(32, "+11", 2)); 1021 EXPECT_EQ(APInt(32, 4), APInt(32, "+100", 2)); 1022 1023 EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 2)); 1024 EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 2)); 1025 EXPECT_EQ(APInt(32, uint64_t(-2LL)), APInt(32, "-10", 2)); 1026 EXPECT_EQ(APInt(32, uint64_t(-3LL)), APInt(32, "-11", 2)); 1027 EXPECT_EQ(APInt(32, uint64_t(-4LL)), APInt(32, "-100", 2)); 1028 1029 EXPECT_EQ(APInt(32, 0), APInt(32, "0", 8)); 1030 EXPECT_EQ(APInt(32, 1), APInt(32, "1", 8)); 1031 EXPECT_EQ(APInt(32, 7), APInt(32, "7", 8)); 1032 EXPECT_EQ(APInt(32, 8), APInt(32, "10", 8)); 1033 EXPECT_EQ(APInt(32, 15), APInt(32, "17", 8)); 1034 EXPECT_EQ(APInt(32, 16), APInt(32, "20", 8)); 1035 1036 EXPECT_EQ(APInt(32, +0), APInt(32, "+0", 8)); 1037 EXPECT_EQ(APInt(32, +1), APInt(32, "+1", 8)); 1038 EXPECT_EQ(APInt(32, +7), APInt(32, "+7", 8)); 1039 EXPECT_EQ(APInt(32, +8), APInt(32, "+10", 8)); 1040 EXPECT_EQ(APInt(32, +15), APInt(32, "+17", 8)); 1041 EXPECT_EQ(APInt(32, +16), APInt(32, "+20", 8)); 1042 1043 EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 8)); 1044 EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 8)); 1045 EXPECT_EQ(APInt(32, uint64_t(-7LL)), APInt(32, "-7", 8)); 1046 EXPECT_EQ(APInt(32, uint64_t(-8LL)), APInt(32, "-10", 8)); 1047 EXPECT_EQ(APInt(32, uint64_t(-15LL)), APInt(32, "-17", 8)); 1048 EXPECT_EQ(APInt(32, uint64_t(-16LL)), APInt(32, "-20", 8)); 1049 1050 EXPECT_EQ(APInt(32, 0), APInt(32, "0", 10)); 1051 EXPECT_EQ(APInt(32, 1), APInt(32, "1", 10)); 1052 EXPECT_EQ(APInt(32, 9), APInt(32, "9", 10)); 1053 EXPECT_EQ(APInt(32, 10), APInt(32, "10", 10)); 1054 EXPECT_EQ(APInt(32, 19), APInt(32, "19", 10)); 1055 EXPECT_EQ(APInt(32, 20), APInt(32, "20", 10)); 1056 1057 EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 10)); 1058 EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 10)); 1059 EXPECT_EQ(APInt(32, uint64_t(-9LL)), APInt(32, "-9", 10)); 1060 EXPECT_EQ(APInt(32, uint64_t(-10LL)), APInt(32, "-10", 10)); 1061 EXPECT_EQ(APInt(32, uint64_t(-19LL)), APInt(32, "-19", 10)); 1062 EXPECT_EQ(APInt(32, uint64_t(-20LL)), APInt(32, "-20", 10)); 1063 1064 EXPECT_EQ(APInt(32, 0), APInt(32, "0", 16)); 1065 EXPECT_EQ(APInt(32, 1), APInt(32, "1", 16)); 1066 EXPECT_EQ(APInt(32, 15), APInt(32, "F", 16)); 1067 EXPECT_EQ(APInt(32, 16), APInt(32, "10", 16)); 1068 EXPECT_EQ(APInt(32, 31), APInt(32, "1F", 16)); 1069 EXPECT_EQ(APInt(32, 32), APInt(32, "20", 16)); 1070 1071 EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 16)); 1072 EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 16)); 1073 EXPECT_EQ(APInt(32, uint64_t(-15LL)), APInt(32, "-F", 16)); 1074 EXPECT_EQ(APInt(32, uint64_t(-16LL)), APInt(32, "-10", 16)); 1075 EXPECT_EQ(APInt(32, uint64_t(-31LL)), APInt(32, "-1F", 16)); 1076 EXPECT_EQ(APInt(32, uint64_t(-32LL)), APInt(32, "-20", 16)); 1077 1078 EXPECT_EQ(APInt(32, 0), APInt(32, "0", 36)); 1079 EXPECT_EQ(APInt(32, 1), APInt(32, "1", 36)); 1080 EXPECT_EQ(APInt(32, 35), APInt(32, "Z", 36)); 1081 EXPECT_EQ(APInt(32, 36), APInt(32, "10", 36)); 1082 EXPECT_EQ(APInt(32, 71), APInt(32, "1Z", 36)); 1083 EXPECT_EQ(APInt(32, 72), APInt(32, "20", 36)); 1084 1085 EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32, "-0", 36)); 1086 EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32, "-1", 36)); 1087 EXPECT_EQ(APInt(32, uint64_t(-35LL)), APInt(32, "-Z", 36)); 1088 EXPECT_EQ(APInt(32, uint64_t(-36LL)), APInt(32, "-10", 36)); 1089 EXPECT_EQ(APInt(32, uint64_t(-71LL)), APInt(32, "-1Z", 36)); 1090 EXPECT_EQ(APInt(32, uint64_t(-72LL)), APInt(32, "-20", 36)); 1091 } 1092 1093 TEST(APIntTest, FromArray) { 1094 EXPECT_EQ(APInt(32, uint64_t(1)), APInt(32, ArrayRef<uint64_t>(1))); 1095 } 1096 1097 TEST(APIntTest, StringBitsNeeded2) { 1098 EXPECT_EQ(1U, APInt::getBitsNeeded( "0", 2)); 1099 EXPECT_EQ(1U, APInt::getBitsNeeded( "1", 2)); 1100 EXPECT_EQ(2U, APInt::getBitsNeeded( "10", 2)); 1101 EXPECT_EQ(2U, APInt::getBitsNeeded( "11", 2)); 1102 EXPECT_EQ(3U, APInt::getBitsNeeded("100", 2)); 1103 1104 EXPECT_EQ(1U, APInt::getBitsNeeded( "+0", 2)); 1105 EXPECT_EQ(1U, APInt::getBitsNeeded( "+1", 2)); 1106 EXPECT_EQ(2U, APInt::getBitsNeeded( "+10", 2)); 1107 EXPECT_EQ(2U, APInt::getBitsNeeded( "+11", 2)); 1108 EXPECT_EQ(3U, APInt::getBitsNeeded("+100", 2)); 1109 1110 EXPECT_EQ(2U, APInt::getBitsNeeded( "-0", 2)); 1111 EXPECT_EQ(2U, APInt::getBitsNeeded( "-1", 2)); 1112 EXPECT_EQ(3U, APInt::getBitsNeeded( "-10", 2)); 1113 EXPECT_EQ(3U, APInt::getBitsNeeded( "-11", 2)); 1114 EXPECT_EQ(4U, APInt::getBitsNeeded("-100", 2)); 1115 } 1116 1117 TEST(APIntTest, StringBitsNeeded8) { 1118 EXPECT_EQ(3U, APInt::getBitsNeeded( "0", 8)); 1119 EXPECT_EQ(3U, APInt::getBitsNeeded( "7", 8)); 1120 EXPECT_EQ(6U, APInt::getBitsNeeded("10", 8)); 1121 EXPECT_EQ(6U, APInt::getBitsNeeded("17", 8)); 1122 EXPECT_EQ(6U, APInt::getBitsNeeded("20", 8)); 1123 1124 EXPECT_EQ(3U, APInt::getBitsNeeded( "+0", 8)); 1125 EXPECT_EQ(3U, APInt::getBitsNeeded( "+7", 8)); 1126 EXPECT_EQ(6U, APInt::getBitsNeeded("+10", 8)); 1127 EXPECT_EQ(6U, APInt::getBitsNeeded("+17", 8)); 1128 EXPECT_EQ(6U, APInt::getBitsNeeded("+20", 8)); 1129 1130 EXPECT_EQ(4U, APInt::getBitsNeeded( "-0", 8)); 1131 EXPECT_EQ(4U, APInt::getBitsNeeded( "-7", 8)); 1132 EXPECT_EQ(7U, APInt::getBitsNeeded("-10", 8)); 1133 EXPECT_EQ(7U, APInt::getBitsNeeded("-17", 8)); 1134 EXPECT_EQ(7U, APInt::getBitsNeeded("-20", 8)); 1135 } 1136 1137 TEST(APIntTest, StringBitsNeeded10) { 1138 EXPECT_EQ(1U, APInt::getBitsNeeded( "0", 10)); 1139 EXPECT_EQ(2U, APInt::getBitsNeeded( "3", 10)); 1140 EXPECT_EQ(4U, APInt::getBitsNeeded( "9", 10)); 1141 EXPECT_EQ(4U, APInt::getBitsNeeded("10", 10)); 1142 EXPECT_EQ(5U, APInt::getBitsNeeded("19", 10)); 1143 EXPECT_EQ(5U, APInt::getBitsNeeded("20", 10)); 1144 1145 EXPECT_EQ(1U, APInt::getBitsNeeded( "+0", 10)); 1146 EXPECT_EQ(4U, APInt::getBitsNeeded( "+9", 10)); 1147 EXPECT_EQ(4U, APInt::getBitsNeeded("+10", 10)); 1148 EXPECT_EQ(5U, APInt::getBitsNeeded("+19", 10)); 1149 EXPECT_EQ(5U, APInt::getBitsNeeded("+20", 10)); 1150 1151 EXPECT_EQ(2U, APInt::getBitsNeeded( "-0", 10)); 1152 EXPECT_EQ(5U, APInt::getBitsNeeded( "-9", 10)); 1153 EXPECT_EQ(5U, APInt::getBitsNeeded("-10", 10)); 1154 EXPECT_EQ(6U, APInt::getBitsNeeded("-19", 10)); 1155 EXPECT_EQ(6U, APInt::getBitsNeeded("-20", 10)); 1156 } 1157 1158 TEST(APIntTest, StringBitsNeeded16) { 1159 EXPECT_EQ(4U, APInt::getBitsNeeded( "0", 16)); 1160 EXPECT_EQ(4U, APInt::getBitsNeeded( "F", 16)); 1161 EXPECT_EQ(8U, APInt::getBitsNeeded("10", 16)); 1162 EXPECT_EQ(8U, APInt::getBitsNeeded("1F", 16)); 1163 EXPECT_EQ(8U, APInt::getBitsNeeded("20", 16)); 1164 1165 EXPECT_EQ(4U, APInt::getBitsNeeded( "+0", 16)); 1166 EXPECT_EQ(4U, APInt::getBitsNeeded( "+F", 16)); 1167 EXPECT_EQ(8U, APInt::getBitsNeeded("+10", 16)); 1168 EXPECT_EQ(8U, APInt::getBitsNeeded("+1F", 16)); 1169 EXPECT_EQ(8U, APInt::getBitsNeeded("+20", 16)); 1170 1171 EXPECT_EQ(5U, APInt::getBitsNeeded( "-0", 16)); 1172 EXPECT_EQ(5U, APInt::getBitsNeeded( "-F", 16)); 1173 EXPECT_EQ(9U, APInt::getBitsNeeded("-10", 16)); 1174 EXPECT_EQ(9U, APInt::getBitsNeeded("-1F", 16)); 1175 EXPECT_EQ(9U, APInt::getBitsNeeded("-20", 16)); 1176 } 1177 1178 TEST(APIntTest, toString) { 1179 SmallString<16> S; 1180 bool isSigned; 1181 1182 APInt(8, 0).toString(S, 2, true, true); 1183 EXPECT_EQ(S.str().str(), "0b0"); 1184 S.clear(); 1185 APInt(8, 0).toString(S, 8, true, true); 1186 EXPECT_EQ(S.str().str(), "00"); 1187 S.clear(); 1188 APInt(8, 0).toString(S, 10, true, true); 1189 EXPECT_EQ(S.str().str(), "0"); 1190 S.clear(); 1191 APInt(8, 0).toString(S, 16, true, true); 1192 EXPECT_EQ(S.str().str(), "0x0"); 1193 S.clear(); 1194 APInt(8, 0).toString(S, 36, true, false); 1195 EXPECT_EQ(S.str().str(), "0"); 1196 S.clear(); 1197 1198 isSigned = false; 1199 APInt(8, 255, isSigned).toString(S, 2, isSigned, true); 1200 EXPECT_EQ(S.str().str(), "0b11111111"); 1201 S.clear(); 1202 APInt(8, 255, isSigned).toString(S, 8, isSigned, true); 1203 EXPECT_EQ(S.str().str(), "0377"); 1204 S.clear(); 1205 APInt(8, 255, isSigned).toString(S, 10, isSigned, true); 1206 EXPECT_EQ(S.str().str(), "255"); 1207 S.clear(); 1208 APInt(8, 255, isSigned).toString(S, 16, isSigned, true); 1209 EXPECT_EQ(S.str().str(), "0xFF"); 1210 S.clear(); 1211 APInt(8, 255, isSigned).toString(S, 36, isSigned, false); 1212 EXPECT_EQ(S.str().str(), "73"); 1213 S.clear(); 1214 1215 isSigned = true; 1216 APInt(8, 255, isSigned).toString(S, 2, isSigned, true); 1217 EXPECT_EQ(S.str().str(), "-0b1"); 1218 S.clear(); 1219 APInt(8, 255, isSigned).toString(S, 8, isSigned, true); 1220 EXPECT_EQ(S.str().str(), "-01"); 1221 S.clear(); 1222 APInt(8, 255, isSigned).toString(S, 10, isSigned, true); 1223 EXPECT_EQ(S.str().str(), "-1"); 1224 S.clear(); 1225 APInt(8, 255, isSigned).toString(S, 16, isSigned, true); 1226 EXPECT_EQ(S.str().str(), "-0x1"); 1227 S.clear(); 1228 APInt(8, 255, isSigned).toString(S, 36, isSigned, false); 1229 EXPECT_EQ(S.str().str(), "-1"); 1230 S.clear(); 1231 } 1232 1233 TEST(APIntTest, Log2) { 1234 EXPECT_EQ(APInt(15, 7).logBase2(), 2U); 1235 EXPECT_EQ(APInt(15, 7).ceilLogBase2(), 3U); 1236 EXPECT_EQ(APInt(15, 7).exactLogBase2(), -1); 1237 EXPECT_EQ(APInt(15, 8).logBase2(), 3U); 1238 EXPECT_EQ(APInt(15, 8).ceilLogBase2(), 3U); 1239 EXPECT_EQ(APInt(15, 8).exactLogBase2(), 3); 1240 EXPECT_EQ(APInt(15, 9).logBase2(), 3U); 1241 EXPECT_EQ(APInt(15, 9).ceilLogBase2(), 4U); 1242 EXPECT_EQ(APInt(15, 9).exactLogBase2(), -1); 1243 } 1244 1245 TEST(APIntTest, magic) { 1246 EXPECT_EQ(APInt(32, 3).magic().m, APInt(32, "55555556", 16)); 1247 EXPECT_EQ(APInt(32, 3).magic().s, 0U); 1248 EXPECT_EQ(APInt(32, 5).magic().m, APInt(32, "66666667", 16)); 1249 EXPECT_EQ(APInt(32, 5).magic().s, 1U); 1250 EXPECT_EQ(APInt(32, 7).magic().m, APInt(32, "92492493", 16)); 1251 EXPECT_EQ(APInt(32, 7).magic().s, 2U); 1252 } 1253 1254 TEST(APIntTest, magicu) { 1255 EXPECT_EQ(APInt(32, 3).magicu().m, APInt(32, "AAAAAAAB", 16)); 1256 EXPECT_EQ(APInt(32, 3).magicu().s, 1U); 1257 EXPECT_EQ(APInt(32, 5).magicu().m, APInt(32, "CCCCCCCD", 16)); 1258 EXPECT_EQ(APInt(32, 5).magicu().s, 2U); 1259 EXPECT_EQ(APInt(32, 7).magicu().m, APInt(32, "24924925", 16)); 1260 EXPECT_EQ(APInt(32, 7).magicu().s, 3U); 1261 EXPECT_EQ(APInt(64, 25).magicu(1).m, APInt(64, "A3D70A3D70A3D70B", 16)); 1262 EXPECT_EQ(APInt(64, 25).magicu(1).s, 4U); 1263 } 1264 1265 #ifdef GTEST_HAS_DEATH_TEST 1266 #ifndef NDEBUG 1267 TEST(APIntTest, StringDeath) { 1268 EXPECT_DEATH(APInt(0, "", 0), "Bitwidth too small"); 1269 EXPECT_DEATH(APInt(32, "", 0), "Invalid string length"); 1270 EXPECT_DEATH(APInt(32, "0", 0), "Radix should be 2, 8, 10, 16, or 36!"); 1271 EXPECT_DEATH(APInt(32, "", 10), "Invalid string length"); 1272 EXPECT_DEATH(APInt(32, "-", 10), "String is only a sign, needs a value."); 1273 EXPECT_DEATH(APInt(1, "1234", 10), "Insufficient bit width"); 1274 EXPECT_DEATH(APInt(32, "\0", 10), "Invalid string length"); 1275 EXPECT_DEATH(APInt(32, StringRef("1\02", 3), 10), "Invalid character in digit string"); 1276 EXPECT_DEATH(APInt(32, "1L", 10), "Invalid character in digit string"); 1277 } 1278 #endif 1279 #endif 1280 1281 TEST(APIntTest, mul_clear) { 1282 APInt ValA(65, -1ULL); 1283 APInt ValB(65, 4); 1284 APInt ValC(65, 0); 1285 ValC = ValA * ValB; 1286 ValA *= ValB; 1287 EXPECT_EQ(ValA.toString(10, false), ValC.toString(10, false)); 1288 } 1289 1290 TEST(APIntTest, Rotate) { 1291 EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotl(0)); 1292 EXPECT_EQ(APInt(8, 2), APInt(8, 1).rotl(1)); 1293 EXPECT_EQ(APInt(8, 4), APInt(8, 1).rotl(2)); 1294 EXPECT_EQ(APInt(8, 16), APInt(8, 1).rotl(4)); 1295 EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotl(8)); 1296 1297 EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotl(0)); 1298 EXPECT_EQ(APInt(8, 32), APInt(8, 16).rotl(1)); 1299 EXPECT_EQ(APInt(8, 64), APInt(8, 16).rotl(2)); 1300 EXPECT_EQ(APInt(8, 1), APInt(8, 16).rotl(4)); 1301 EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotl(8)); 1302 1303 EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(33)); 1304 EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(APInt(32, 33))); 1305 1306 EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(33)); 1307 EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(APInt(32, 33))); 1308 EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(APInt(33, 33))); 1309 EXPECT_EQ(APInt(32, (1 << 8)), APInt(32, 1).rotl(APInt(32, 40))); 1310 EXPECT_EQ(APInt(32, (1 << 30)), APInt(32, 1).rotl(APInt(31, 30))); 1311 EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotl(APInt(31, 31))); 1312 1313 EXPECT_EQ(APInt(32, 1), APInt(32, 1).rotl(APInt(1, 0))); 1314 EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(APInt(1, 1))); 1315 1316 EXPECT_EQ(APInt(32, 16), APInt(32, 1).rotl(APInt(3, 4))); 1317 1318 EXPECT_EQ(APInt(32, 1), APInt(32, 1).rotl(APInt(64, 64))); 1319 EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(APInt(64, 65))); 1320 1321 EXPECT_EQ(APInt(7, 24), APInt(7, 3).rotl(APInt(7, 3))); 1322 EXPECT_EQ(APInt(7, 24), APInt(7, 3).rotl(APInt(7, 10))); 1323 EXPECT_EQ(APInt(7, 24), APInt(7, 3).rotl(APInt(5, 10))); 1324 EXPECT_EQ(APInt(7, 6), APInt(7, 3).rotl(APInt(12, 120))); 1325 1326 EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotr(0)); 1327 EXPECT_EQ(APInt(8, 8), APInt(8, 16).rotr(1)); 1328 EXPECT_EQ(APInt(8, 4), APInt(8, 16).rotr(2)); 1329 EXPECT_EQ(APInt(8, 1), APInt(8, 16).rotr(4)); 1330 EXPECT_EQ(APInt(8, 16), APInt(8, 16).rotr(8)); 1331 1332 EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotr(0)); 1333 EXPECT_EQ(APInt(8, 128), APInt(8, 1).rotr(1)); 1334 EXPECT_EQ(APInt(8, 64), APInt(8, 1).rotr(2)); 1335 EXPECT_EQ(APInt(8, 16), APInt(8, 1).rotr(4)); 1336 EXPECT_EQ(APInt(8, 1), APInt(8, 1).rotr(8)); 1337 1338 EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(33)); 1339 EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(32, 33))); 1340 1341 EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(33)); 1342 EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(32, 33))); 1343 EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(33, 33))); 1344 EXPECT_EQ(APInt(32, (1 << 24)), APInt(32, 1).rotr(APInt(32, 40))); 1345 1346 EXPECT_EQ(APInt(32, (1 << 2)), APInt(32, 1).rotr(APInt(31, 30))); 1347 EXPECT_EQ(APInt(32, (1 << 1)), APInt(32, 1).rotr(APInt(31, 31))); 1348 1349 EXPECT_EQ(APInt(32, 1), APInt(32, 1).rotr(APInt(1, 0))); 1350 EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(1, 1))); 1351 1352 EXPECT_EQ(APInt(32, (1 << 28)), APInt(32, 1).rotr(APInt(3, 4))); 1353 1354 EXPECT_EQ(APInt(32, 1), APInt(32, 1).rotr(APInt(64, 64))); 1355 EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(64, 65))); 1356 1357 EXPECT_EQ(APInt(7, 48), APInt(7, 3).rotr(APInt(7, 3))); 1358 EXPECT_EQ(APInt(7, 48), APInt(7, 3).rotr(APInt(7, 10))); 1359 EXPECT_EQ(APInt(7, 48), APInt(7, 3).rotr(APInt(5, 10))); 1360 EXPECT_EQ(APInt(7, 65), APInt(7, 3).rotr(APInt(12, 120))); 1361 1362 APInt Big(256, "00004000800000000000000000003fff8000000000000003", 16); 1363 APInt Rot(256, "3fff80000000000000030000000000000000000040008000", 16); 1364 EXPECT_EQ(Rot, Big.rotr(144)); 1365 1366 EXPECT_EQ(APInt(32, 8), APInt(32, 1).rotl(Big)); 1367 EXPECT_EQ(APInt(32, (1 << 29)), APInt(32, 1).rotr(Big)); 1368 } 1369 1370 TEST(APIntTest, Splat) { 1371 APInt ValA(8, 0x01); 1372 EXPECT_EQ(ValA, APInt::getSplat(8, ValA)); 1373 EXPECT_EQ(APInt(64, 0x0101010101010101ULL), APInt::getSplat(64, ValA)); 1374 1375 APInt ValB(3, 5); 1376 EXPECT_EQ(APInt(4, 0xD), APInt::getSplat(4, ValB)); 1377 EXPECT_EQ(APInt(15, 0xDB6D), APInt::getSplat(15, ValB)); 1378 } 1379 1380 TEST(APIntTest, tcDecrement) { 1381 // Test single word decrement. 1382 1383 // No out borrow. 1384 { 1385 APInt::WordType singleWord = ~APInt::WordType(0) << (APInt::APINT_BITS_PER_WORD - 1); 1386 APInt::WordType carry = APInt::tcDecrement(&singleWord, 1); 1387 EXPECT_EQ(carry, APInt::WordType(0)); 1388 EXPECT_EQ(singleWord, ~APInt::WordType(0) >> 1); 1389 } 1390 1391 // With out borrow. 1392 { 1393 APInt::WordType singleWord = 0; 1394 APInt::WordType carry = APInt::tcDecrement(&singleWord, 1); 1395 EXPECT_EQ(carry, APInt::WordType(1)); 1396 EXPECT_EQ(singleWord, ~APInt::WordType(0)); 1397 } 1398 1399 // Test multiword decrement. 1400 1401 // No across word borrow, no out borrow. 1402 { 1403 APInt::WordType test[4] = {0x1, 0x1, 0x1, 0x1}; 1404 APInt::WordType expected[4] = {0x0, 0x1, 0x1, 0x1}; 1405 APInt::tcDecrement(test, 4); 1406 EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0); 1407 } 1408 1409 // 1 across word borrow, no out borrow. 1410 { 1411 APInt::WordType test[4] = {0x0, 0xF, 0x1, 0x1}; 1412 APInt::WordType expected[4] = {~APInt::WordType(0), 0xE, 0x1, 0x1}; 1413 APInt::WordType carry = APInt::tcDecrement(test, 4); 1414 EXPECT_EQ(carry, APInt::WordType(0)); 1415 EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0); 1416 } 1417 1418 // 2 across word borrow, no out borrow. 1419 { 1420 APInt::WordType test[4] = {0x0, 0x0, 0xC, 0x1}; 1421 APInt::WordType expected[4] = {~APInt::WordType(0), ~APInt::WordType(0), 0xB, 0x1}; 1422 APInt::WordType carry = APInt::tcDecrement(test, 4); 1423 EXPECT_EQ(carry, APInt::WordType(0)); 1424 EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0); 1425 } 1426 1427 // 3 across word borrow, no out borrow. 1428 { 1429 APInt::WordType test[4] = {0x0, 0x0, 0x0, 0x1}; 1430 APInt::WordType expected[4] = {~APInt::WordType(0), ~APInt::WordType(0), ~APInt::WordType(0), 0x0}; 1431 APInt::WordType carry = APInt::tcDecrement(test, 4); 1432 EXPECT_EQ(carry, APInt::WordType(0)); 1433 EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0); 1434 } 1435 1436 // 3 across word borrow, with out borrow. 1437 { 1438 APInt::WordType test[4] = {0x0, 0x0, 0x0, 0x0}; 1439 APInt::WordType expected[4] = {~APInt::WordType(0), ~APInt::WordType(0), ~APInt::WordType(0), ~APInt::WordType(0)}; 1440 APInt::WordType carry = APInt::tcDecrement(test, 4); 1441 EXPECT_EQ(carry, APInt::WordType(1)); 1442 EXPECT_EQ(APInt::tcCompare(test, expected, 4), 0); 1443 } 1444 } 1445 1446 TEST(APIntTest, arrayAccess) { 1447 // Single word check. 1448 uint64_t E1 = 0x2CA7F46BF6569915ULL; 1449 APInt A1(64, E1); 1450 for (unsigned i = 0, e = 64; i < e; ++i) { 1451 EXPECT_EQ(bool(E1 & (1ULL << i)), 1452 A1[i]); 1453 } 1454 1455 // Multiword check. 1456 APInt::WordType E2[4] = { 1457 0xEB6EB136591CBA21ULL, 1458 0x7B9358BD6A33F10AULL, 1459 0x7E7FFA5EADD8846ULL, 1460 0x305F341CA00B613DULL 1461 }; 1462 APInt A2(APInt::APINT_BITS_PER_WORD*4, E2); 1463 for (unsigned i = 0; i < 4; ++i) { 1464 for (unsigned j = 0; j < APInt::APINT_BITS_PER_WORD; ++j) { 1465 EXPECT_EQ(bool(E2[i] & (1ULL << j)), 1466 A2[i*APInt::APINT_BITS_PER_WORD + j]); 1467 } 1468 } 1469 } 1470 1471 TEST(APIntTest, LargeAPIntConstruction) { 1472 // Check that we can properly construct very large APInt. It is very 1473 // unlikely that people will ever do this, but it is a legal input, 1474 // so we should not crash on it. 1475 APInt A9(UINT32_MAX, 0); 1476 EXPECT_FALSE(A9.getBoolValue()); 1477 } 1478 1479 TEST(APIntTest, nearestLogBase2) { 1480 // Single word check. 1481 1482 // Test round up. 1483 uint64_t I1 = 0x1800001; 1484 APInt A1(64, I1); 1485 EXPECT_EQ(A1.nearestLogBase2(), A1.ceilLogBase2()); 1486 1487 // Test round down. 1488 uint64_t I2 = 0x1000011; 1489 APInt A2(64, I2); 1490 EXPECT_EQ(A2.nearestLogBase2(), A2.logBase2()); 1491 1492 // Test ties round up. 1493 uint64_t I3 = 0x1800000; 1494 APInt A3(64, I3); 1495 EXPECT_EQ(A3.nearestLogBase2(), A3.ceilLogBase2()); 1496 1497 // Multiple word check. 1498 1499 // Test round up. 1500 APInt::WordType I4[4] = {0x0, 0xF, 0x18, 0x0}; 1501 APInt A4(APInt::APINT_BITS_PER_WORD*4, I4); 1502 EXPECT_EQ(A4.nearestLogBase2(), A4.ceilLogBase2()); 1503 1504 // Test round down. 1505 APInt::WordType I5[4] = {0x0, 0xF, 0x10, 0x0}; 1506 APInt A5(APInt::APINT_BITS_PER_WORD*4, I5); 1507 EXPECT_EQ(A5.nearestLogBase2(), A5.logBase2()); 1508 1509 // Test ties round up. 1510 uint64_t I6[4] = {0x0, 0x0, 0x0, 0x18}; 1511 APInt A6(APInt::APINT_BITS_PER_WORD*4, I6); 1512 EXPECT_EQ(A6.nearestLogBase2(), A6.ceilLogBase2()); 1513 1514 // Test BitWidth == 1 special cases. 1515 APInt A7(1, 1); 1516 EXPECT_EQ(A7.nearestLogBase2(), 0ULL); 1517 APInt A8(1, 0); 1518 EXPECT_EQ(A8.nearestLogBase2(), UINT32_MAX); 1519 1520 // Test the zero case when we have a bit width large enough such 1521 // that the bit width is larger than UINT32_MAX-1. 1522 APInt A9(UINT32_MAX, 0); 1523 EXPECT_EQ(A9.nearestLogBase2(), UINT32_MAX); 1524 } 1525 1526 TEST(APIntTest, IsSplat) { 1527 APInt A(32, 0x01010101); 1528 EXPECT_FALSE(A.isSplat(1)); 1529 EXPECT_FALSE(A.isSplat(2)); 1530 EXPECT_FALSE(A.isSplat(4)); 1531 EXPECT_TRUE(A.isSplat(8)); 1532 EXPECT_TRUE(A.isSplat(16)); 1533 EXPECT_TRUE(A.isSplat(32)); 1534 1535 APInt B(24, 0xAAAAAA); 1536 EXPECT_FALSE(B.isSplat(1)); 1537 EXPECT_TRUE(B.isSplat(2)); 1538 EXPECT_TRUE(B.isSplat(4)); 1539 EXPECT_TRUE(B.isSplat(8)); 1540 EXPECT_TRUE(B.isSplat(24)); 1541 1542 APInt C(24, 0xABAAAB); 1543 EXPECT_FALSE(C.isSplat(1)); 1544 EXPECT_FALSE(C.isSplat(2)); 1545 EXPECT_FALSE(C.isSplat(4)); 1546 EXPECT_FALSE(C.isSplat(8)); 1547 EXPECT_TRUE(C.isSplat(24)); 1548 1549 APInt D(32, 0xABBAABBA); 1550 EXPECT_FALSE(D.isSplat(1)); 1551 EXPECT_FALSE(D.isSplat(2)); 1552 EXPECT_FALSE(D.isSplat(4)); 1553 EXPECT_FALSE(D.isSplat(8)); 1554 EXPECT_TRUE(D.isSplat(16)); 1555 EXPECT_TRUE(D.isSplat(32)); 1556 1557 APInt E(32, 0); 1558 EXPECT_TRUE(E.isSplat(1)); 1559 EXPECT_TRUE(E.isSplat(2)); 1560 EXPECT_TRUE(E.isSplat(4)); 1561 EXPECT_TRUE(E.isSplat(8)); 1562 EXPECT_TRUE(E.isSplat(16)); 1563 EXPECT_TRUE(E.isSplat(32)); 1564 } 1565 1566 TEST(APIntTest, isMask) { 1567 EXPECT_FALSE(APInt(32, 0x01010101).isMask()); 1568 EXPECT_FALSE(APInt(32, 0xf0000000).isMask()); 1569 EXPECT_FALSE(APInt(32, 0xffff0000).isMask()); 1570 EXPECT_FALSE(APInt(32, 0xff << 1).isMask()); 1571 1572 for (int N : { 1, 2, 3, 4, 7, 8, 16, 32, 64, 127, 128, 129, 256 }) { 1573 EXPECT_FALSE(APInt(N, 0).isMask()); 1574 1575 APInt One(N, 1); 1576 for (int I = 1; I <= N; ++I) { 1577 APInt MaskVal = One.shl(I) - 1; 1578 EXPECT_TRUE(MaskVal.isMask()); 1579 EXPECT_TRUE(MaskVal.isMask(I)); 1580 } 1581 } 1582 } 1583 1584 TEST(APIntTest, isShiftedMask) { 1585 EXPECT_FALSE(APInt(32, 0x01010101).isShiftedMask()); 1586 EXPECT_TRUE(APInt(32, 0xf0000000).isShiftedMask()); 1587 EXPECT_TRUE(APInt(32, 0xffff0000).isShiftedMask()); 1588 EXPECT_TRUE(APInt(32, 0xff << 1).isShiftedMask()); 1589 1590 for (int N : { 1, 2, 3, 4, 7, 8, 16, 32, 64, 127, 128, 129, 256 }) { 1591 EXPECT_FALSE(APInt(N, 0).isShiftedMask()); 1592 1593 APInt One(N, 1); 1594 for (int I = 1; I < N; ++I) { 1595 APInt MaskVal = One.shl(I) - 1; 1596 EXPECT_TRUE(MaskVal.isShiftedMask()); 1597 } 1598 for (int I = 1; I < N - 1; ++I) { 1599 APInt MaskVal = One.shl(I); 1600 EXPECT_TRUE(MaskVal.isShiftedMask()); 1601 } 1602 for (int I = 1; I < N; ++I) { 1603 APInt MaskVal = APInt::getHighBitsSet(N, I); 1604 EXPECT_TRUE(MaskVal.isShiftedMask()); 1605 } 1606 } 1607 } 1608 1609 #if defined(__clang__) 1610 // Disable the pragma warning from versions of Clang without -Wself-move 1611 #pragma clang diagnostic push 1612 #pragma clang diagnostic ignored "-Wunknown-pragmas" 1613 // Disable the warning that triggers on exactly what is being tested. 1614 #pragma clang diagnostic push 1615 #pragma clang diagnostic ignored "-Wself-move" 1616 #endif 1617 TEST(APIntTest, SelfMoveAssignment) { 1618 APInt X(32, 0xdeadbeef); 1619 X = std::move(X); 1620 EXPECT_EQ(32u, X.getBitWidth()); 1621 EXPECT_EQ(0xdeadbeefULL, X.getLimitedValue()); 1622 1623 uint64_t Bits[] = {0xdeadbeefdeadbeefULL, 0xdeadbeefdeadbeefULL}; 1624 APInt Y(128, Bits); 1625 Y = std::move(Y); 1626 EXPECT_EQ(128u, Y.getBitWidth()); 1627 EXPECT_EQ(~0ULL, Y.getLimitedValue()); 1628 const uint64_t *Raw = Y.getRawData(); 1629 EXPECT_EQ(2u, Y.getNumWords()); 1630 EXPECT_EQ(0xdeadbeefdeadbeefULL, Raw[0]); 1631 EXPECT_EQ(0xdeadbeefdeadbeefULL, Raw[1]); 1632 } 1633 #if defined(__clang__) 1634 #pragma clang diagnostic pop 1635 #pragma clang diagnostic pop 1636 #endif 1637 } 1638 1639 TEST(APIntTest, reverseBits) { 1640 EXPECT_EQ(1, APInt(1, 1).reverseBits()); 1641 EXPECT_EQ(0, APInt(1, 0).reverseBits()); 1642 1643 EXPECT_EQ(3, APInt(2, 3).reverseBits()); 1644 EXPECT_EQ(3, APInt(2, 3).reverseBits()); 1645 1646 EXPECT_EQ(0xb, APInt(4, 0xd).reverseBits()); 1647 EXPECT_EQ(0xd, APInt(4, 0xb).reverseBits()); 1648 EXPECT_EQ(0xf, APInt(4, 0xf).reverseBits()); 1649 1650 EXPECT_EQ(0x30, APInt(7, 0x6).reverseBits()); 1651 EXPECT_EQ(0x5a, APInt(7, 0x2d).reverseBits()); 1652 1653 EXPECT_EQ(0x0f, APInt(8, 0xf0).reverseBits()); 1654 EXPECT_EQ(0xf0, APInt(8, 0x0f).reverseBits()); 1655 1656 EXPECT_EQ(0x0f0f, APInt(16, 0xf0f0).reverseBits()); 1657 EXPECT_EQ(0xf0f0, APInt(16, 0x0f0f).reverseBits()); 1658 1659 EXPECT_EQ(0x0f0f0f0f, APInt(32, 0xf0f0f0f0).reverseBits()); 1660 EXPECT_EQ(0xf0f0f0f0, APInt(32, 0x0f0f0f0f).reverseBits()); 1661 1662 EXPECT_EQ(0x402880a0 >> 1, APInt(31, 0x05011402).reverseBits()); 1663 1664 EXPECT_EQ(0x0f0f0f0f, APInt(32, 0xf0f0f0f0).reverseBits()); 1665 EXPECT_EQ(0xf0f0f0f0, APInt(32, 0x0f0f0f0f).reverseBits()); 1666 1667 EXPECT_EQ(0x0f0f0f0f0f0f0f0f, APInt(64, 0xf0f0f0f0f0f0f0f0).reverseBits()); 1668 EXPECT_EQ(0xf0f0f0f0f0f0f0f0, APInt(64, 0x0f0f0f0f0f0f0f0f).reverseBits()); 1669 1670 for (unsigned N : { 1, 8, 16, 24, 31, 32, 33, 1671 63, 64, 65, 127, 128, 257, 1024 }) { 1672 for (unsigned I = 0; I < N; ++I) { 1673 APInt X = APInt::getOneBitSet(N, I); 1674 APInt Y = APInt::getOneBitSet(N, N - (I + 1)); 1675 EXPECT_EQ(Y, X.reverseBits()); 1676 EXPECT_EQ(X, Y.reverseBits()); 1677 } 1678 } 1679 } 1680 1681 TEST(APIntTest, insertBits) { 1682 APInt iSrc(31, 0x00123456); 1683 1684 // Direct copy. 1685 APInt i31(31, 0x76543210ull); 1686 i31.insertBits(iSrc, 0); 1687 EXPECT_EQ(static_cast<int64_t>(0x00123456ull), i31.getSExtValue()); 1688 1689 // Single word src/dst insertion. 1690 APInt i63(63, 0x01234567FFFFFFFFull); 1691 i63.insertBits(iSrc, 4); 1692 EXPECT_EQ(static_cast<int64_t>(0x012345600123456Full), i63.getSExtValue()); 1693 1694 // Insert single word src into one word of dst. 1695 APInt i120(120, UINT64_MAX, true); 1696 i120.insertBits(iSrc, 8); 1697 EXPECT_EQ(static_cast<int64_t>(0xFFFFFF80123456FFull), i120.getSExtValue()); 1698 1699 // Insert single word src into two words of dst. 1700 APInt i127(127, UINT64_MAX, true); 1701 i127.insertBits(iSrc, 48); 1702 EXPECT_EQ(i127.extractBits(64, 0).getZExtValue(), 0x3456FFFFFFFFFFFFull); 1703 EXPECT_EQ(i127.extractBits(63, 64).getZExtValue(), 0x7FFFFFFFFFFF8012ull); 1704 1705 // Insert on word boundaries. 1706 APInt i128(128, 0); 1707 i128.insertBits(APInt(64, UINT64_MAX, true), 0); 1708 i128.insertBits(APInt(64, UINT64_MAX, true), 64); 1709 EXPECT_EQ(-1, i128.getSExtValue()); 1710 1711 APInt i256(256, UINT64_MAX, true); 1712 i256.insertBits(APInt(65, 0), 0); 1713 i256.insertBits(APInt(69, 0), 64); 1714 i256.insertBits(APInt(128, 0), 128); 1715 EXPECT_EQ(0u, i256.getSExtValue()); 1716 1717 APInt i257(257, 0); 1718 i257.insertBits(APInt(96, UINT64_MAX, true), 64); 1719 EXPECT_EQ(i257.extractBits(64, 0).getZExtValue(), 0x0000000000000000ull); 1720 EXPECT_EQ(i257.extractBits(64, 64).getZExtValue(), 0xFFFFFFFFFFFFFFFFull); 1721 EXPECT_EQ(i257.extractBits(64, 128).getZExtValue(), 0x00000000FFFFFFFFull); 1722 EXPECT_EQ(i257.extractBits(65, 192).getZExtValue(), 0x0000000000000000ull); 1723 1724 // General insertion. 1725 APInt i260(260, UINT64_MAX, true); 1726 i260.insertBits(APInt(129, 1ull << 48), 15); 1727 EXPECT_EQ(i260.extractBits(64, 0).getZExtValue(), 0x8000000000007FFFull); 1728 EXPECT_EQ(i260.extractBits(64, 64).getZExtValue(), 0x0000000000000000ull); 1729 EXPECT_EQ(i260.extractBits(64, 128).getZExtValue(), 0xFFFFFFFFFFFF0000ull); 1730 EXPECT_EQ(i260.extractBits(64, 192).getZExtValue(), 0xFFFFFFFFFFFFFFFFull); 1731 EXPECT_EQ(i260.extractBits(4, 256).getZExtValue(), 0x000000000000000Full); 1732 } 1733 1734 TEST(APIntTest, extractBits) { 1735 APInt i32(32, 0x1234567); 1736 EXPECT_EQ(0x3456, i32.extractBits(16, 4)); 1737 1738 APInt i257(257, 0xFFFFFFFFFF0000FFull, true); 1739 EXPECT_EQ(0xFFu, i257.extractBits(16, 0)); 1740 EXPECT_EQ((0xFFu >> 1), i257.extractBits(16, 1)); 1741 EXPECT_EQ(-1, i257.extractBits(32, 64).getSExtValue()); 1742 EXPECT_EQ(-1, i257.extractBits(128, 128).getSExtValue()); 1743 EXPECT_EQ(-1, i257.extractBits(66, 191).getSExtValue()); 1744 EXPECT_EQ(static_cast<int64_t>(0xFFFFFFFFFF80007Full), 1745 i257.extractBits(128, 1).getSExtValue()); 1746 EXPECT_EQ(static_cast<int64_t>(0xFFFFFFFFFF80007Full), 1747 i257.extractBits(129, 1).getSExtValue()); 1748 } 1749 1750 TEST(APIntTest, getLowBitsSet) { 1751 APInt i128lo64 = APInt::getLowBitsSet(128, 64); 1752 EXPECT_EQ(0u, i128lo64.countLeadingOnes()); 1753 EXPECT_EQ(64u, i128lo64.countLeadingZeros()); 1754 EXPECT_EQ(64u, i128lo64.getActiveBits()); 1755 EXPECT_EQ(0u, i128lo64.countTrailingZeros()); 1756 EXPECT_EQ(64u, i128lo64.countTrailingOnes()); 1757 EXPECT_EQ(64u, i128lo64.countPopulation()); 1758 } 1759 1760 TEST(APIntTest, getBitsSet) { 1761 APInt i64hi1lo1 = APInt::getBitsSet(64, 63, 1); 1762 EXPECT_EQ(1u, i64hi1lo1.countLeadingOnes()); 1763 EXPECT_EQ(0u, i64hi1lo1.countLeadingZeros()); 1764 EXPECT_EQ(64u, i64hi1lo1.getActiveBits()); 1765 EXPECT_EQ(0u, i64hi1lo1.countTrailingZeros()); 1766 EXPECT_EQ(1u, i64hi1lo1.countTrailingOnes()); 1767 EXPECT_EQ(2u, i64hi1lo1.countPopulation()); 1768 1769 APInt i127hi1lo1 = APInt::getBitsSet(127, 126, 1); 1770 EXPECT_EQ(1u, i127hi1lo1.countLeadingOnes()); 1771 EXPECT_EQ(0u, i127hi1lo1.countLeadingZeros()); 1772 EXPECT_EQ(127u, i127hi1lo1.getActiveBits()); 1773 EXPECT_EQ(0u, i127hi1lo1.countTrailingZeros()); 1774 EXPECT_EQ(1u, i127hi1lo1.countTrailingOnes()); 1775 EXPECT_EQ(2u, i127hi1lo1.countPopulation()); 1776 } 1777 1778 TEST(APIntTest, getHighBitsSet) { 1779 APInt i64hi32 = APInt::getHighBitsSet(64, 32); 1780 EXPECT_EQ(32u, i64hi32.countLeadingOnes()); 1781 EXPECT_EQ(0u, i64hi32.countLeadingZeros()); 1782 EXPECT_EQ(64u, i64hi32.getActiveBits()); 1783 EXPECT_EQ(32u, i64hi32.countTrailingZeros()); 1784 EXPECT_EQ(0u, i64hi32.countTrailingOnes()); 1785 EXPECT_EQ(32u, i64hi32.countPopulation()); 1786 } 1787 1788 TEST(APIntTest, getBitsSetFrom) { 1789 APInt i64hi31 = APInt::getBitsSetFrom(64, 33); 1790 EXPECT_EQ(31u, i64hi31.countLeadingOnes()); 1791 EXPECT_EQ(0u, i64hi31.countLeadingZeros()); 1792 EXPECT_EQ(64u, i64hi31.getActiveBits()); 1793 EXPECT_EQ(33u, i64hi31.countTrailingZeros()); 1794 EXPECT_EQ(0u, i64hi31.countTrailingOnes()); 1795 EXPECT_EQ(31u, i64hi31.countPopulation()); 1796 } 1797 1798 TEST(APIntTest, setLowBits) { 1799 APInt i64lo32(64, 0); 1800 i64lo32.setLowBits(32); 1801 EXPECT_EQ(0u, i64lo32.countLeadingOnes()); 1802 EXPECT_EQ(32u, i64lo32.countLeadingZeros()); 1803 EXPECT_EQ(32u, i64lo32.getActiveBits()); 1804 EXPECT_EQ(0u, i64lo32.countTrailingZeros()); 1805 EXPECT_EQ(32u, i64lo32.countTrailingOnes()); 1806 EXPECT_EQ(32u, i64lo32.countPopulation()); 1807 1808 APInt i128lo64(128, 0); 1809 i128lo64.setLowBits(64); 1810 EXPECT_EQ(0u, i128lo64.countLeadingOnes()); 1811 EXPECT_EQ(64u, i128lo64.countLeadingZeros()); 1812 EXPECT_EQ(64u, i128lo64.getActiveBits()); 1813 EXPECT_EQ(0u, i128lo64.countTrailingZeros()); 1814 EXPECT_EQ(64u, i128lo64.countTrailingOnes()); 1815 EXPECT_EQ(64u, i128lo64.countPopulation()); 1816 1817 APInt i128lo24(128, 0); 1818 i128lo24.setLowBits(24); 1819 EXPECT_EQ(0u, i128lo24.countLeadingOnes()); 1820 EXPECT_EQ(104u, i128lo24.countLeadingZeros()); 1821 EXPECT_EQ(24u, i128lo24.getActiveBits()); 1822 EXPECT_EQ(0u, i128lo24.countTrailingZeros()); 1823 EXPECT_EQ(24u, i128lo24.countTrailingOnes()); 1824 EXPECT_EQ(24u, i128lo24.countPopulation()); 1825 1826 APInt i128lo104(128, 0); 1827 i128lo104.setLowBits(104); 1828 EXPECT_EQ(0u, i128lo104.countLeadingOnes()); 1829 EXPECT_EQ(24u, i128lo104.countLeadingZeros()); 1830 EXPECT_EQ(104u, i128lo104.getActiveBits()); 1831 EXPECT_EQ(0u, i128lo104.countTrailingZeros()); 1832 EXPECT_EQ(104u, i128lo104.countTrailingOnes()); 1833 EXPECT_EQ(104u, i128lo104.countPopulation()); 1834 1835 APInt i128lo0(128, 0); 1836 i128lo0.setLowBits(0); 1837 EXPECT_EQ(0u, i128lo0.countLeadingOnes()); 1838 EXPECT_EQ(128u, i128lo0.countLeadingZeros()); 1839 EXPECT_EQ(0u, i128lo0.getActiveBits()); 1840 EXPECT_EQ(128u, i128lo0.countTrailingZeros()); 1841 EXPECT_EQ(0u, i128lo0.countTrailingOnes()); 1842 EXPECT_EQ(0u, i128lo0.countPopulation()); 1843 1844 APInt i80lo79(80, 0); 1845 i80lo79.setLowBits(79); 1846 EXPECT_EQ(0u, i80lo79.countLeadingOnes()); 1847 EXPECT_EQ(1u, i80lo79.countLeadingZeros()); 1848 EXPECT_EQ(79u, i80lo79.getActiveBits()); 1849 EXPECT_EQ(0u, i80lo79.countTrailingZeros()); 1850 EXPECT_EQ(79u, i80lo79.countTrailingOnes()); 1851 EXPECT_EQ(79u, i80lo79.countPopulation()); 1852 } 1853 1854 TEST(APIntTest, setHighBits) { 1855 APInt i64hi32(64, 0); 1856 i64hi32.setHighBits(32); 1857 EXPECT_EQ(32u, i64hi32.countLeadingOnes()); 1858 EXPECT_EQ(0u, i64hi32.countLeadingZeros()); 1859 EXPECT_EQ(64u, i64hi32.getActiveBits()); 1860 EXPECT_EQ(32u, i64hi32.countTrailingZeros()); 1861 EXPECT_EQ(0u, i64hi32.countTrailingOnes()); 1862 EXPECT_EQ(32u, i64hi32.countPopulation()); 1863 1864 APInt i128hi64(128, 0); 1865 i128hi64.setHighBits(64); 1866 EXPECT_EQ(64u, i128hi64.countLeadingOnes()); 1867 EXPECT_EQ(0u, i128hi64.countLeadingZeros()); 1868 EXPECT_EQ(128u, i128hi64.getActiveBits()); 1869 EXPECT_EQ(64u, i128hi64.countTrailingZeros()); 1870 EXPECT_EQ(0u, i128hi64.countTrailingOnes()); 1871 EXPECT_EQ(64u, i128hi64.countPopulation()); 1872 1873 APInt i128hi24(128, 0); 1874 i128hi24.setHighBits(24); 1875 EXPECT_EQ(24u, i128hi24.countLeadingOnes()); 1876 EXPECT_EQ(0u, i128hi24.countLeadingZeros()); 1877 EXPECT_EQ(128u, i128hi24.getActiveBits()); 1878 EXPECT_EQ(104u, i128hi24.countTrailingZeros()); 1879 EXPECT_EQ(0u, i128hi24.countTrailingOnes()); 1880 EXPECT_EQ(24u, i128hi24.countPopulation()); 1881 1882 APInt i128hi104(128, 0); 1883 i128hi104.setHighBits(104); 1884 EXPECT_EQ(104u, i128hi104.countLeadingOnes()); 1885 EXPECT_EQ(0u, i128hi104.countLeadingZeros()); 1886 EXPECT_EQ(128u, i128hi104.getActiveBits()); 1887 EXPECT_EQ(24u, i128hi104.countTrailingZeros()); 1888 EXPECT_EQ(0u, i128hi104.countTrailingOnes()); 1889 EXPECT_EQ(104u, i128hi104.countPopulation()); 1890 1891 APInt i128hi0(128, 0); 1892 i128hi0.setHighBits(0); 1893 EXPECT_EQ(0u, i128hi0.countLeadingOnes()); 1894 EXPECT_EQ(128u, i128hi0.countLeadingZeros()); 1895 EXPECT_EQ(0u, i128hi0.getActiveBits()); 1896 EXPECT_EQ(128u, i128hi0.countTrailingZeros()); 1897 EXPECT_EQ(0u, i128hi0.countTrailingOnes()); 1898 EXPECT_EQ(0u, i128hi0.countPopulation()); 1899 1900 APInt i80hi1(80, 0); 1901 i80hi1.setHighBits(1); 1902 EXPECT_EQ(1u, i80hi1.countLeadingOnes()); 1903 EXPECT_EQ(0u, i80hi1.countLeadingZeros()); 1904 EXPECT_EQ(80u, i80hi1.getActiveBits()); 1905 EXPECT_EQ(79u, i80hi1.countTrailingZeros()); 1906 EXPECT_EQ(0u, i80hi1.countTrailingOnes()); 1907 EXPECT_EQ(1u, i80hi1.countPopulation()); 1908 1909 APInt i32hi16(32, 0); 1910 i32hi16.setHighBits(16); 1911 EXPECT_EQ(16u, i32hi16.countLeadingOnes()); 1912 EXPECT_EQ(0u, i32hi16.countLeadingZeros()); 1913 EXPECT_EQ(32u, i32hi16.getActiveBits()); 1914 EXPECT_EQ(16u, i32hi16.countTrailingZeros()); 1915 EXPECT_EQ(0u, i32hi16.countTrailingOnes()); 1916 EXPECT_EQ(16u, i32hi16.countPopulation()); 1917 } 1918 1919 TEST(APIntTest, setBitsFrom) { 1920 APInt i64from63(64, 0); 1921 i64from63.setBitsFrom(63); 1922 EXPECT_EQ(1u, i64from63.countLeadingOnes()); 1923 EXPECT_EQ(0u, i64from63.countLeadingZeros()); 1924 EXPECT_EQ(64u, i64from63.getActiveBits()); 1925 EXPECT_EQ(63u, i64from63.countTrailingZeros()); 1926 EXPECT_EQ(0u, i64from63.countTrailingOnes()); 1927 EXPECT_EQ(1u, i64from63.countPopulation()); 1928 } 1929 1930 TEST(APIntTest, setAllBits) { 1931 APInt i32(32, 0); 1932 i32.setAllBits(); 1933 EXPECT_EQ(32u, i32.countLeadingOnes()); 1934 EXPECT_EQ(0u, i32.countLeadingZeros()); 1935 EXPECT_EQ(32u, i32.getActiveBits()); 1936 EXPECT_EQ(0u, i32.countTrailingZeros()); 1937 EXPECT_EQ(32u, i32.countTrailingOnes()); 1938 EXPECT_EQ(32u, i32.countPopulation()); 1939 1940 APInt i64(64, 0); 1941 i64.setAllBits(); 1942 EXPECT_EQ(64u, i64.countLeadingOnes()); 1943 EXPECT_EQ(0u, i64.countLeadingZeros()); 1944 EXPECT_EQ(64u, i64.getActiveBits()); 1945 EXPECT_EQ(0u, i64.countTrailingZeros()); 1946 EXPECT_EQ(64u, i64.countTrailingOnes()); 1947 EXPECT_EQ(64u, i64.countPopulation()); 1948 1949 APInt i96(96, 0); 1950 i96.setAllBits(); 1951 EXPECT_EQ(96u, i96.countLeadingOnes()); 1952 EXPECT_EQ(0u, i96.countLeadingZeros()); 1953 EXPECT_EQ(96u, i96.getActiveBits()); 1954 EXPECT_EQ(0u, i96.countTrailingZeros()); 1955 EXPECT_EQ(96u, i96.countTrailingOnes()); 1956 EXPECT_EQ(96u, i96.countPopulation()); 1957 1958 APInt i128(128, 0); 1959 i128.setAllBits(); 1960 EXPECT_EQ(128u, i128.countLeadingOnes()); 1961 EXPECT_EQ(0u, i128.countLeadingZeros()); 1962 EXPECT_EQ(128u, i128.getActiveBits()); 1963 EXPECT_EQ(0u, i128.countTrailingZeros()); 1964 EXPECT_EQ(128u, i128.countTrailingOnes()); 1965 EXPECT_EQ(128u, i128.countPopulation()); 1966 } 1967 1968 TEST(APIntTest, getLoBits) { 1969 APInt i32(32, 0xfa); 1970 i32.setHighBits(1); 1971 EXPECT_EQ(0xa, i32.getLoBits(4)); 1972 APInt i128(128, 0xfa); 1973 i128.setHighBits(1); 1974 EXPECT_EQ(0xa, i128.getLoBits(4)); 1975 } 1976 1977 TEST(APIntTest, getHiBits) { 1978 APInt i32(32, 0xfa); 1979 i32.setHighBits(2); 1980 EXPECT_EQ(0xc, i32.getHiBits(4)); 1981 APInt i128(128, 0xfa); 1982 i128.setHighBits(2); 1983 EXPECT_EQ(0xc, i128.getHiBits(4)); 1984 } 1985 1986 TEST(APIntTest, GCD) { 1987 using APIntOps::GreatestCommonDivisor; 1988 1989 for (unsigned Bits : {1, 2, 32, 63, 64, 65}) { 1990 // Test some corner cases near zero. 1991 APInt Zero(Bits, 0), One(Bits, 1); 1992 EXPECT_EQ(GreatestCommonDivisor(Zero, Zero), Zero); 1993 EXPECT_EQ(GreatestCommonDivisor(Zero, One), One); 1994 EXPECT_EQ(GreatestCommonDivisor(One, Zero), One); 1995 EXPECT_EQ(GreatestCommonDivisor(One, One), One); 1996 1997 if (Bits > 1) { 1998 APInt Two(Bits, 2); 1999 EXPECT_EQ(GreatestCommonDivisor(Zero, Two), Two); 2000 EXPECT_EQ(GreatestCommonDivisor(One, Two), One); 2001 EXPECT_EQ(GreatestCommonDivisor(Two, Two), Two); 2002 2003 // Test some corner cases near the highest representable value. 2004 APInt Max(Bits, 0); 2005 Max.setAllBits(); 2006 EXPECT_EQ(GreatestCommonDivisor(Zero, Max), Max); 2007 EXPECT_EQ(GreatestCommonDivisor(One, Max), One); 2008 EXPECT_EQ(GreatestCommonDivisor(Two, Max), One); 2009 EXPECT_EQ(GreatestCommonDivisor(Max, Max), Max); 2010 2011 APInt MaxOver2 = Max.udiv(Two); 2012 EXPECT_EQ(GreatestCommonDivisor(MaxOver2, Max), One); 2013 // Max - 1 == Max / 2 * 2, because Max is odd. 2014 EXPECT_EQ(GreatestCommonDivisor(MaxOver2, Max - 1), MaxOver2); 2015 } 2016 } 2017 2018 // Compute the 20th Mersenne prime. 2019 const unsigned BitWidth = 4450; 2020 APInt HugePrime = APInt::getLowBitsSet(BitWidth, 4423); 2021 2022 // 9931 and 123456 are coprime. 2023 APInt A = HugePrime * APInt(BitWidth, 9931); 2024 APInt B = HugePrime * APInt(BitWidth, 123456); 2025 APInt C = GreatestCommonDivisor(A, B); 2026 EXPECT_EQ(C, HugePrime); 2027 } 2028