1 //===- llvm/unittest/ADT/BitVectorTest.cpp - BitVector 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 // Some of these tests fail on PowerPC for unknown reasons. 11 #ifndef __ppc__ 12 13 #include "llvm/ADT/BitVector.h" 14 #include "llvm/ADT/SmallBitVector.h" 15 #include "gtest/gtest.h" 16 17 using namespace llvm; 18 19 namespace { 20 21 // Test fixture 22 template <typename T> 23 class BitVectorTest : public ::testing::Test { }; 24 25 // Test both BitVector and SmallBitVector with the same suite of tests. 26 typedef ::testing::Types<BitVector, SmallBitVector> BitVectorTestTypes; 27 TYPED_TEST_CASE(BitVectorTest, BitVectorTestTypes); 28 29 TYPED_TEST(BitVectorTest, TrivialOperation) { 30 TypeParam Vec; 31 EXPECT_EQ(0U, Vec.count()); 32 EXPECT_EQ(0U, Vec.size()); 33 EXPECT_FALSE(Vec.any()); 34 EXPECT_TRUE(Vec.all()); 35 EXPECT_TRUE(Vec.none()); 36 EXPECT_TRUE(Vec.empty()); 37 38 Vec.resize(5, true); 39 EXPECT_EQ(5U, Vec.count()); 40 EXPECT_EQ(5U, Vec.size()); 41 EXPECT_TRUE(Vec.any()); 42 EXPECT_TRUE(Vec.all()); 43 EXPECT_FALSE(Vec.none()); 44 EXPECT_FALSE(Vec.empty()); 45 46 Vec.resize(11); 47 EXPECT_EQ(5U, Vec.count()); 48 EXPECT_EQ(11U, Vec.size()); 49 EXPECT_TRUE(Vec.any()); 50 EXPECT_FALSE(Vec.all()); 51 EXPECT_FALSE(Vec.none()); 52 EXPECT_FALSE(Vec.empty()); 53 54 TypeParam Inv = Vec; 55 Inv.flip(); 56 EXPECT_EQ(6U, Inv.count()); 57 EXPECT_EQ(11U, Inv.size()); 58 EXPECT_TRUE(Inv.any()); 59 EXPECT_FALSE(Inv.all()); 60 EXPECT_FALSE(Inv.none()); 61 EXPECT_FALSE(Inv.empty()); 62 63 EXPECT_FALSE(Inv == Vec); 64 EXPECT_TRUE(Inv != Vec); 65 Vec.flip(); 66 EXPECT_TRUE(Inv == Vec); 67 EXPECT_FALSE(Inv != Vec); 68 69 // Add some "interesting" data to Vec. 70 Vec.resize(23, true); 71 Vec.resize(25, false); 72 Vec.resize(26, true); 73 Vec.resize(29, false); 74 Vec.resize(33, true); 75 Vec.resize(57, false); 76 unsigned Count = 0; 77 for (unsigned i = Vec.find_first(); i != -1u; i = Vec.find_next(i)) { 78 ++Count; 79 EXPECT_TRUE(Vec[i]); 80 EXPECT_TRUE(Vec.test(i)); 81 } 82 EXPECT_EQ(Count, Vec.count()); 83 EXPECT_EQ(Count, 23u); 84 EXPECT_FALSE(Vec[0]); 85 EXPECT_TRUE(Vec[32]); 86 EXPECT_FALSE(Vec[56]); 87 Vec.resize(61, false); 88 89 TypeParam Copy = Vec; 90 TypeParam Alt(3, false); 91 Alt.resize(6, true); 92 std::swap(Alt, Vec); 93 EXPECT_TRUE(Copy == Alt); 94 EXPECT_TRUE(Vec.size() == 6); 95 EXPECT_TRUE(Vec.count() == 3); 96 EXPECT_TRUE(Vec.find_first() == 3); 97 std::swap(Copy, Vec); 98 99 // Add some more "interesting" data. 100 Vec.resize(68, true); 101 Vec.resize(78, false); 102 Vec.resize(89, true); 103 Vec.resize(90, false); 104 Vec.resize(91, true); 105 Vec.resize(130, false); 106 Count = 0; 107 for (unsigned i = Vec.find_first(); i != -1u; i = Vec.find_next(i)) { 108 ++Count; 109 EXPECT_TRUE(Vec[i]); 110 EXPECT_TRUE(Vec.test(i)); 111 } 112 EXPECT_EQ(Count, Vec.count()); 113 EXPECT_EQ(Count, 42u); 114 EXPECT_FALSE(Vec[0]); 115 EXPECT_TRUE(Vec[32]); 116 EXPECT_FALSE(Vec[60]); 117 EXPECT_FALSE(Vec[129]); 118 119 Vec.flip(60); 120 EXPECT_TRUE(Vec[60]); 121 EXPECT_EQ(Count + 1, Vec.count()); 122 Vec.flip(60); 123 EXPECT_FALSE(Vec[60]); 124 EXPECT_EQ(Count, Vec.count()); 125 126 Vec.reset(32); 127 EXPECT_FALSE(Vec[32]); 128 EXPECT_EQ(Count - 1, Vec.count()); 129 Vec.set(32); 130 EXPECT_TRUE(Vec[32]); 131 EXPECT_EQ(Count, Vec.count()); 132 133 Vec.flip(); 134 EXPECT_EQ(Vec.size() - Count, Vec.count()); 135 136 Vec.reset(); 137 EXPECT_EQ(0U, Vec.count()); 138 EXPECT_EQ(130U, Vec.size()); 139 EXPECT_FALSE(Vec.any()); 140 EXPECT_FALSE(Vec.all()); 141 EXPECT_TRUE(Vec.none()); 142 EXPECT_FALSE(Vec.empty()); 143 144 Vec.flip(); 145 EXPECT_EQ(130U, Vec.count()); 146 EXPECT_EQ(130U, Vec.size()); 147 EXPECT_TRUE(Vec.any()); 148 EXPECT_TRUE(Vec.all()); 149 EXPECT_FALSE(Vec.none()); 150 EXPECT_FALSE(Vec.empty()); 151 152 Vec.resize(64); 153 EXPECT_EQ(64U, Vec.count()); 154 EXPECT_EQ(64U, Vec.size()); 155 EXPECT_TRUE(Vec.any()); 156 EXPECT_TRUE(Vec.all()); 157 EXPECT_FALSE(Vec.none()); 158 EXPECT_FALSE(Vec.empty()); 159 160 Vec.flip(); 161 EXPECT_EQ(0U, Vec.count()); 162 EXPECT_EQ(64U, Vec.size()); 163 EXPECT_FALSE(Vec.any()); 164 EXPECT_FALSE(Vec.all()); 165 EXPECT_TRUE(Vec.none()); 166 EXPECT_FALSE(Vec.empty()); 167 168 Inv = TypeParam().flip(); 169 EXPECT_EQ(0U, Inv.count()); 170 EXPECT_EQ(0U, Inv.size()); 171 EXPECT_FALSE(Inv.any()); 172 EXPECT_TRUE(Inv.all()); 173 EXPECT_TRUE(Inv.none()); 174 EXPECT_TRUE(Inv.empty()); 175 176 Vec.clear(); 177 EXPECT_EQ(0U, Vec.count()); 178 EXPECT_EQ(0U, Vec.size()); 179 EXPECT_FALSE(Vec.any()); 180 EXPECT_TRUE(Vec.all()); 181 EXPECT_TRUE(Vec.none()); 182 EXPECT_TRUE(Vec.empty()); 183 } 184 185 TYPED_TEST(BitVectorTest, CompoundAssignment) { 186 TypeParam A; 187 A.resize(10); 188 A.set(4); 189 A.set(7); 190 191 TypeParam B; 192 B.resize(50); 193 B.set(5); 194 B.set(18); 195 196 A |= B; 197 EXPECT_TRUE(A.test(4)); 198 EXPECT_TRUE(A.test(5)); 199 EXPECT_TRUE(A.test(7)); 200 EXPECT_TRUE(A.test(18)); 201 EXPECT_EQ(4U, A.count()); 202 EXPECT_EQ(50U, A.size()); 203 204 B.resize(10); 205 B.set(); 206 B.reset(2); 207 B.reset(7); 208 A &= B; 209 EXPECT_FALSE(A.test(2)); 210 EXPECT_FALSE(A.test(7)); 211 EXPECT_EQ(2U, A.count()); 212 EXPECT_EQ(50U, A.size()); 213 214 B.resize(100); 215 B.set(); 216 217 A ^= B; 218 EXPECT_TRUE(A.test(2)); 219 EXPECT_TRUE(A.test(7)); 220 EXPECT_EQ(98U, A.count()); 221 EXPECT_EQ(100U, A.size()); 222 } 223 224 TYPED_TEST(BitVectorTest, ProxyIndex) { 225 TypeParam Vec(3); 226 EXPECT_TRUE(Vec.none()); 227 Vec[0] = Vec[1] = Vec[2] = true; 228 EXPECT_EQ(Vec.size(), Vec.count()); 229 Vec[2] = Vec[1] = Vec[0] = false; 230 EXPECT_TRUE(Vec.none()); 231 } 232 233 TYPED_TEST(BitVectorTest, PortableBitMask) { 234 TypeParam A; 235 const uint32_t Mask1[] = { 0x80000000, 6, 5 }; 236 237 A.resize(10); 238 A.setBitsInMask(Mask1, 3); 239 EXPECT_EQ(10u, A.size()); 240 EXPECT_FALSE(A.test(0)); 241 242 A.resize(32); 243 A.setBitsInMask(Mask1, 3); 244 EXPECT_FALSE(A.test(0)); 245 EXPECT_TRUE(A.test(31)); 246 EXPECT_EQ(1u, A.count()); 247 248 A.resize(33); 249 A.setBitsInMask(Mask1, 1); 250 EXPECT_EQ(1u, A.count()); 251 A.setBitsInMask(Mask1, 2); 252 EXPECT_EQ(1u, A.count()); 253 254 A.resize(34); 255 A.setBitsInMask(Mask1, 2); 256 EXPECT_EQ(2u, A.count()); 257 258 A.resize(65); 259 A.setBitsInMask(Mask1, 3); 260 EXPECT_EQ(4u, A.count()); 261 262 A.setBitsNotInMask(Mask1, 1); 263 EXPECT_EQ(32u+3u, A.count()); 264 265 A.setBitsNotInMask(Mask1, 3); 266 EXPECT_EQ(65u, A.count()); 267 268 A.resize(96); 269 EXPECT_EQ(65u, A.count()); 270 271 A.clear(); 272 A.resize(128); 273 A.setBitsNotInMask(Mask1, 3); 274 EXPECT_EQ(96u-5u, A.count()); 275 276 A.clearBitsNotInMask(Mask1, 1); 277 EXPECT_EQ(64-4u, A.count()); 278 } 279 280 TYPED_TEST(BitVectorTest, BinOps) { 281 TypeParam A; 282 TypeParam B; 283 284 A.resize(65); 285 EXPECT_FALSE(A.anyCommon(B)); 286 EXPECT_FALSE(B.anyCommon(B)); 287 288 B.resize(64); 289 A.set(64); 290 EXPECT_FALSE(A.anyCommon(B)); 291 EXPECT_FALSE(B.anyCommon(A)); 292 293 B.set(63); 294 EXPECT_FALSE(A.anyCommon(B)); 295 EXPECT_FALSE(B.anyCommon(A)); 296 297 A.set(63); 298 EXPECT_TRUE(A.anyCommon(B)); 299 EXPECT_TRUE(B.anyCommon(A)); 300 301 B.resize(70); 302 B.set(64); 303 B.reset(63); 304 A.resize(64); 305 EXPECT_FALSE(A.anyCommon(B)); 306 EXPECT_FALSE(B.anyCommon(A)); 307 } 308 309 TYPED_TEST(BitVectorTest, RangeOps) { 310 TypeParam A; 311 A.resize(256); 312 A.reset(); 313 A.set(1, 255); 314 315 EXPECT_FALSE(A.test(0)); 316 EXPECT_TRUE( A.test(1)); 317 EXPECT_TRUE( A.test(23)); 318 EXPECT_TRUE( A.test(254)); 319 EXPECT_FALSE(A.test(255)); 320 321 TypeParam B; 322 B.resize(256); 323 B.set(); 324 B.reset(1, 255); 325 326 EXPECT_TRUE( B.test(0)); 327 EXPECT_FALSE(B.test(1)); 328 EXPECT_FALSE(B.test(23)); 329 EXPECT_FALSE(B.test(254)); 330 EXPECT_TRUE( B.test(255)); 331 332 TypeParam C; 333 C.resize(3); 334 C.reset(); 335 C.set(0, 1); 336 337 EXPECT_TRUE(C.test(0)); 338 EXPECT_FALSE( C.test(1)); 339 EXPECT_FALSE( C.test(2)); 340 341 TypeParam D; 342 D.resize(3); 343 D.set(); 344 D.reset(0, 1); 345 346 EXPECT_FALSE(D.test(0)); 347 EXPECT_TRUE( D.test(1)); 348 EXPECT_TRUE( D.test(2)); 349 350 TypeParam E; 351 E.resize(128); 352 E.reset(); 353 E.set(1, 33); 354 355 EXPECT_FALSE(E.test(0)); 356 EXPECT_TRUE( E.test(1)); 357 EXPECT_TRUE( E.test(32)); 358 EXPECT_FALSE(E.test(33)); 359 } 360 361 TYPED_TEST(BitVectorTest, CompoundTestReset) { 362 TypeParam A(50, true); 363 TypeParam B(50, false); 364 365 TypeParam C(100, true); 366 TypeParam D(100, false); 367 368 EXPECT_FALSE(A.test(A)); 369 EXPECT_TRUE(A.test(B)); 370 EXPECT_FALSE(A.test(C)); 371 EXPECT_TRUE(A.test(D)); 372 EXPECT_FALSE(B.test(A)); 373 EXPECT_FALSE(B.test(B)); 374 EXPECT_FALSE(B.test(C)); 375 EXPECT_FALSE(B.test(D)); 376 EXPECT_TRUE(C.test(A)); 377 EXPECT_TRUE(C.test(B)); 378 EXPECT_FALSE(C.test(C)); 379 EXPECT_TRUE(C.test(D)); 380 381 A.reset(B); 382 A.reset(D); 383 EXPECT_TRUE(A.all()); 384 A.reset(A); 385 EXPECT_TRUE(A.none()); 386 A.set(); 387 A.reset(C); 388 EXPECT_TRUE(A.none()); 389 A.set(); 390 391 C.reset(A); 392 EXPECT_EQ(50, C.find_first()); 393 C.reset(C); 394 EXPECT_TRUE(C.none()); 395 } 396 } 397 #endif 398
