1 //===- llvm/unittest/Support/ConstantRangeTest.cpp - ConstantRange 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/Support/ConstantRange.h" 11 #include "llvm/Instructions.h" 12 13 #include "gtest/gtest.h" 14 15 using namespace llvm; 16 17 namespace { 18 19 class ConstantRangeTest : public ::testing::Test { 20 protected: 21 static ConstantRange Full; 22 static ConstantRange Empty; 23 static ConstantRange One; 24 static ConstantRange Some; 25 static ConstantRange Wrap; 26 }; 27 28 ConstantRange ConstantRangeTest::Full(16); 29 ConstantRange ConstantRangeTest::Empty(16, false); 30 ConstantRange ConstantRangeTest::One(APInt(16, 0xa)); 31 ConstantRange ConstantRangeTest::Some(APInt(16, 0xa), APInt(16, 0xaaa)); 32 ConstantRange ConstantRangeTest::Wrap(APInt(16, 0xaaa), APInt(16, 0xa)); 33 34 TEST_F(ConstantRangeTest, Basics) { 35 EXPECT_TRUE(Full.isFullSet()); 36 EXPECT_FALSE(Full.isEmptySet()); 37 EXPECT_TRUE(Full.inverse().isEmptySet()); 38 EXPECT_FALSE(Full.isWrappedSet()); 39 EXPECT_TRUE(Full.contains(APInt(16, 0x0))); 40 EXPECT_TRUE(Full.contains(APInt(16, 0x9))); 41 EXPECT_TRUE(Full.contains(APInt(16, 0xa))); 42 EXPECT_TRUE(Full.contains(APInt(16, 0xaa9))); 43 EXPECT_TRUE(Full.contains(APInt(16, 0xaaa))); 44 45 EXPECT_FALSE(Empty.isFullSet()); 46 EXPECT_TRUE(Empty.isEmptySet()); 47 EXPECT_TRUE(Empty.inverse().isFullSet()); 48 EXPECT_FALSE(Empty.isWrappedSet()); 49 EXPECT_FALSE(Empty.contains(APInt(16, 0x0))); 50 EXPECT_FALSE(Empty.contains(APInt(16, 0x9))); 51 EXPECT_FALSE(Empty.contains(APInt(16, 0xa))); 52 EXPECT_FALSE(Empty.contains(APInt(16, 0xaa9))); 53 EXPECT_FALSE(Empty.contains(APInt(16, 0xaaa))); 54 55 EXPECT_FALSE(One.isFullSet()); 56 EXPECT_FALSE(One.isEmptySet()); 57 EXPECT_FALSE(One.isWrappedSet()); 58 EXPECT_FALSE(One.contains(APInt(16, 0x0))); 59 EXPECT_FALSE(One.contains(APInt(16, 0x9))); 60 EXPECT_TRUE(One.contains(APInt(16, 0xa))); 61 EXPECT_FALSE(One.contains(APInt(16, 0xaa9))); 62 EXPECT_FALSE(One.contains(APInt(16, 0xaaa))); 63 EXPECT_FALSE(One.inverse().contains(APInt(16, 0xa))); 64 65 EXPECT_FALSE(Some.isFullSet()); 66 EXPECT_FALSE(Some.isEmptySet()); 67 EXPECT_FALSE(Some.isWrappedSet()); 68 EXPECT_FALSE(Some.contains(APInt(16, 0x0))); 69 EXPECT_FALSE(Some.contains(APInt(16, 0x9))); 70 EXPECT_TRUE(Some.contains(APInt(16, 0xa))); 71 EXPECT_TRUE(Some.contains(APInt(16, 0xaa9))); 72 EXPECT_FALSE(Some.contains(APInt(16, 0xaaa))); 73 74 EXPECT_FALSE(Wrap.isFullSet()); 75 EXPECT_FALSE(Wrap.isEmptySet()); 76 EXPECT_TRUE(Wrap.isWrappedSet()); 77 EXPECT_TRUE(Wrap.contains(APInt(16, 0x0))); 78 EXPECT_TRUE(Wrap.contains(APInt(16, 0x9))); 79 EXPECT_FALSE(Wrap.contains(APInt(16, 0xa))); 80 EXPECT_FALSE(Wrap.contains(APInt(16, 0xaa9))); 81 EXPECT_TRUE(Wrap.contains(APInt(16, 0xaaa))); 82 } 83 84 TEST_F(ConstantRangeTest, Equality) { 85 EXPECT_EQ(Full, Full); 86 EXPECT_EQ(Empty, Empty); 87 EXPECT_EQ(One, One); 88 EXPECT_EQ(Some, Some); 89 EXPECT_EQ(Wrap, Wrap); 90 EXPECT_NE(Full, Empty); 91 EXPECT_NE(Full, One); 92 EXPECT_NE(Full, Some); 93 EXPECT_NE(Full, Wrap); 94 EXPECT_NE(Empty, One); 95 EXPECT_NE(Empty, Some); 96 EXPECT_NE(Empty, Wrap); 97 EXPECT_NE(One, Some); 98 EXPECT_NE(One, Wrap); 99 EXPECT_NE(Some, Wrap); 100 } 101 102 TEST_F(ConstantRangeTest, SingleElement) { 103 EXPECT_EQ(Full.getSingleElement(), static_cast<APInt *>(NULL)); 104 EXPECT_EQ(Empty.getSingleElement(), static_cast<APInt *>(NULL)); 105 EXPECT_EQ(*One.getSingleElement(), APInt(16, 0xa)); 106 EXPECT_EQ(Some.getSingleElement(), static_cast<APInt *>(NULL)); 107 EXPECT_EQ(Wrap.getSingleElement(), static_cast<APInt *>(NULL)); 108 109 EXPECT_FALSE(Full.isSingleElement()); 110 EXPECT_FALSE(Empty.isSingleElement()); 111 EXPECT_TRUE(One.isSingleElement()); 112 EXPECT_FALSE(Some.isSingleElement()); 113 EXPECT_FALSE(Wrap.isSingleElement()); 114 } 115 116 TEST_F(ConstantRangeTest, GetSetSize) { 117 EXPECT_EQ(Full.getSetSize(), APInt(16, 0)); 118 EXPECT_EQ(Empty.getSetSize(), APInt(16, 0)); 119 EXPECT_EQ(One.getSetSize(), APInt(16, 1)); 120 EXPECT_EQ(Some.getSetSize(), APInt(16, 0xaa0)); 121 EXPECT_EQ(Wrap.getSetSize(), APInt(16, 0x10000 - 0xaa0)); 122 } 123 124 TEST_F(ConstantRangeTest, GetMinsAndMaxes) { 125 EXPECT_EQ(Full.getUnsignedMax(), APInt(16, UINT16_MAX)); 126 EXPECT_EQ(One.getUnsignedMax(), APInt(16, 0xa)); 127 EXPECT_EQ(Some.getUnsignedMax(), APInt(16, 0xaa9)); 128 EXPECT_EQ(Wrap.getUnsignedMax(), APInt(16, UINT16_MAX)); 129 130 EXPECT_EQ(Full.getUnsignedMin(), APInt(16, 0)); 131 EXPECT_EQ(One.getUnsignedMin(), APInt(16, 0xa)); 132 EXPECT_EQ(Some.getUnsignedMin(), APInt(16, 0xa)); 133 EXPECT_EQ(Wrap.getUnsignedMin(), APInt(16, 0)); 134 135 EXPECT_EQ(Full.getSignedMax(), APInt(16, INT16_MAX)); 136 EXPECT_EQ(One.getSignedMax(), APInt(16, 0xa)); 137 EXPECT_EQ(Some.getSignedMax(), APInt(16, 0xaa9)); 138 EXPECT_EQ(Wrap.getSignedMax(), APInt(16, INT16_MAX)); 139 140 EXPECT_EQ(Full.getSignedMin(), APInt(16, (uint64_t)INT16_MIN)); 141 EXPECT_EQ(One.getSignedMin(), APInt(16, 0xa)); 142 EXPECT_EQ(Some.getSignedMin(), APInt(16, 0xa)); 143 EXPECT_EQ(Wrap.getSignedMin(), APInt(16, (uint64_t)INT16_MIN)); 144 145 // Found by Klee 146 EXPECT_EQ(ConstantRange(APInt(4, 7), APInt(4, 0)).getSignedMax(), 147 APInt(4, 7)); 148 } 149 150 TEST_F(ConstantRangeTest, SignWrapped) { 151 EXPECT_TRUE(Full.isSignWrappedSet()); 152 EXPECT_FALSE(Empty.isSignWrappedSet()); 153 EXPECT_FALSE(One.isSignWrappedSet()); 154 EXPECT_FALSE(Some.isSignWrappedSet()); 155 EXPECT_TRUE(Wrap.isSignWrappedSet()); 156 157 EXPECT_FALSE(ConstantRange(APInt(8, 127), APInt(8, 128)).isSignWrappedSet()); 158 EXPECT_TRUE(ConstantRange(APInt(8, 127), APInt(8, 129)).isSignWrappedSet()); 159 EXPECT_FALSE(ConstantRange(APInt(8, 128), APInt(8, 129)).isSignWrappedSet()); 160 EXPECT_TRUE(ConstantRange(APInt(8, 10), APInt(8, 9)).isSignWrappedSet()); 161 EXPECT_TRUE(ConstantRange(APInt(8, 10), APInt(8, 250)).isSignWrappedSet()); 162 EXPECT_FALSE(ConstantRange(APInt(8, 250), APInt(8, 10)).isSignWrappedSet()); 163 EXPECT_FALSE(ConstantRange(APInt(8, 250), APInt(8, 251)).isSignWrappedSet()); 164 } 165 166 TEST_F(ConstantRangeTest, Trunc) { 167 ConstantRange TFull = Full.truncate(10); 168 ConstantRange TEmpty = Empty.truncate(10); 169 ConstantRange TOne = One.truncate(10); 170 ConstantRange TSome = Some.truncate(10); 171 ConstantRange TWrap = Wrap.truncate(10); 172 EXPECT_TRUE(TFull.isFullSet()); 173 EXPECT_TRUE(TEmpty.isEmptySet()); 174 EXPECT_EQ(TOne, ConstantRange(One.getLower().trunc(10), 175 One.getUpper().trunc(10))); 176 EXPECT_TRUE(TSome.isFullSet()); 177 } 178 179 TEST_F(ConstantRangeTest, ZExt) { 180 ConstantRange ZFull = Full.zeroExtend(20); 181 ConstantRange ZEmpty = Empty.zeroExtend(20); 182 ConstantRange ZOne = One.zeroExtend(20); 183 ConstantRange ZSome = Some.zeroExtend(20); 184 ConstantRange ZWrap = Wrap.zeroExtend(20); 185 EXPECT_EQ(ZFull, ConstantRange(APInt(20, 0), APInt(20, 0x10000))); 186 EXPECT_TRUE(ZEmpty.isEmptySet()); 187 EXPECT_EQ(ZOne, ConstantRange(One.getLower().zext(20), 188 One.getUpper().zext(20))); 189 EXPECT_EQ(ZSome, ConstantRange(Some.getLower().zext(20), 190 Some.getUpper().zext(20))); 191 EXPECT_EQ(ZWrap, ConstantRange(APInt(20, 0), APInt(20, 0x10000))); 192 } 193 194 TEST_F(ConstantRangeTest, SExt) { 195 ConstantRange SFull = Full.signExtend(20); 196 ConstantRange SEmpty = Empty.signExtend(20); 197 ConstantRange SOne = One.signExtend(20); 198 ConstantRange SSome = Some.signExtend(20); 199 ConstantRange SWrap = Wrap.signExtend(20); 200 EXPECT_EQ(SFull, ConstantRange(APInt(20, (uint64_t)INT16_MIN, true), 201 APInt(20, INT16_MAX + 1, true))); 202 EXPECT_TRUE(SEmpty.isEmptySet()); 203 EXPECT_EQ(SOne, ConstantRange(One.getLower().sext(20), 204 One.getUpper().sext(20))); 205 EXPECT_EQ(SSome, ConstantRange(Some.getLower().sext(20), 206 Some.getUpper().sext(20))); 207 EXPECT_EQ(SWrap, ConstantRange(APInt(20, (uint64_t)INT16_MIN, true), 208 APInt(20, INT16_MAX + 1, true))); 209 210 EXPECT_EQ(ConstantRange(APInt(8, 120), APInt(8, 140)).signExtend(16), 211 ConstantRange(APInt(16, -128), APInt(16, 128))); 212 } 213 214 TEST_F(ConstantRangeTest, IntersectWith) { 215 EXPECT_EQ(Empty.intersectWith(Full), Empty); 216 EXPECT_EQ(Empty.intersectWith(Empty), Empty); 217 EXPECT_EQ(Empty.intersectWith(One), Empty); 218 EXPECT_EQ(Empty.intersectWith(Some), Empty); 219 EXPECT_EQ(Empty.intersectWith(Wrap), Empty); 220 EXPECT_EQ(Full.intersectWith(Full), Full); 221 EXPECT_EQ(Some.intersectWith(Some), Some); 222 EXPECT_EQ(Some.intersectWith(One), One); 223 EXPECT_EQ(Full.intersectWith(One), One); 224 EXPECT_EQ(Full.intersectWith(Some), Some); 225 EXPECT_EQ(Some.intersectWith(Wrap), Empty); 226 EXPECT_EQ(One.intersectWith(Wrap), Empty); 227 EXPECT_EQ(One.intersectWith(Wrap), Wrap.intersectWith(One)); 228 229 // Klee generated testcase from PR4545. 230 // The intersection of i16 [4, 2) and [6, 5) is disjoint, looking like 231 // 01..4.6789ABCDEF where the dots represent values not in the intersection. 232 ConstantRange LHS(APInt(16, 4), APInt(16, 2)); 233 ConstantRange RHS(APInt(16, 6), APInt(16, 5)); 234 EXPECT_TRUE(LHS.intersectWith(RHS) == LHS); 235 } 236 237 TEST_F(ConstantRangeTest, UnionWith) { 238 EXPECT_EQ(Wrap.unionWith(One), 239 ConstantRange(APInt(16, 0xaaa), APInt(16, 0xb))); 240 EXPECT_EQ(One.unionWith(Wrap), Wrap.unionWith(One)); 241 EXPECT_EQ(Empty.unionWith(Empty), Empty); 242 EXPECT_EQ(Full.unionWith(Full), Full); 243 EXPECT_EQ(Some.unionWith(Wrap), Full); 244 245 // PR4545 246 EXPECT_EQ(ConstantRange(APInt(16, 14), APInt(16, 1)).unionWith( 247 ConstantRange(APInt(16, 0), APInt(16, 8))), 248 ConstantRange(APInt(16, 14), APInt(16, 8))); 249 EXPECT_EQ(ConstantRange(APInt(16, 6), APInt(16, 4)).unionWith( 250 ConstantRange(APInt(16, 4), APInt(16, 0))), 251 ConstantRange(16)); 252 EXPECT_EQ(ConstantRange(APInt(16, 1), APInt(16, 0)).unionWith( 253 ConstantRange(APInt(16, 2), APInt(16, 1))), 254 ConstantRange(16)); 255 } 256 257 TEST_F(ConstantRangeTest, SubtractAPInt) { 258 EXPECT_EQ(Full.subtract(APInt(16, 4)), Full); 259 EXPECT_EQ(Empty.subtract(APInt(16, 4)), Empty); 260 EXPECT_EQ(Some.subtract(APInt(16, 4)), 261 ConstantRange(APInt(16, 0x6), APInt(16, 0xaa6))); 262 EXPECT_EQ(Wrap.subtract(APInt(16, 4)), 263 ConstantRange(APInt(16, 0xaa6), APInt(16, 0x6))); 264 EXPECT_EQ(One.subtract(APInt(16, 4)), 265 ConstantRange(APInt(16, 0x6))); 266 } 267 268 TEST_F(ConstantRangeTest, Add) { 269 EXPECT_EQ(Full.add(APInt(16, 4)), Full); 270 EXPECT_EQ(Full.add(Full), Full); 271 EXPECT_EQ(Full.add(Empty), Empty); 272 EXPECT_EQ(Full.add(One), Full); 273 EXPECT_EQ(Full.add(Some), Full); 274 EXPECT_EQ(Full.add(Wrap), Full); 275 EXPECT_EQ(Empty.add(Empty), Empty); 276 EXPECT_EQ(Empty.add(One), Empty); 277 EXPECT_EQ(Empty.add(Some), Empty); 278 EXPECT_EQ(Empty.add(Wrap), Empty); 279 EXPECT_EQ(Empty.add(APInt(16, 4)), Empty); 280 EXPECT_EQ(Some.add(APInt(16, 4)), 281 ConstantRange(APInt(16, 0xe), APInt(16, 0xaae))); 282 EXPECT_EQ(Wrap.add(APInt(16, 4)), 283 ConstantRange(APInt(16, 0xaae), APInt(16, 0xe))); 284 EXPECT_EQ(One.add(APInt(16, 4)), 285 ConstantRange(APInt(16, 0xe))); 286 } 287 288 TEST_F(ConstantRangeTest, Sub) { 289 EXPECT_EQ(Full.sub(APInt(16, 4)), Full); 290 EXPECT_EQ(Full.sub(Full), Full); 291 EXPECT_EQ(Full.sub(Empty), Empty); 292 EXPECT_EQ(Full.sub(One), Full); 293 EXPECT_EQ(Full.sub(Some), Full); 294 EXPECT_EQ(Full.sub(Wrap), Full); 295 EXPECT_EQ(Empty.sub(Empty), Empty); 296 EXPECT_EQ(Empty.sub(One), Empty); 297 EXPECT_EQ(Empty.sub(Some), Empty); 298 EXPECT_EQ(Empty.sub(Wrap), Empty); 299 EXPECT_EQ(Empty.sub(APInt(16, 4)), Empty); 300 EXPECT_EQ(Some.sub(APInt(16, 4)), 301 ConstantRange(APInt(16, 0x6), APInt(16, 0xaa6))); 302 EXPECT_EQ(Some.sub(Some), 303 ConstantRange(APInt(16, 0xf561), APInt(16, 0xaa0))); 304 EXPECT_EQ(Wrap.sub(APInt(16, 4)), 305 ConstantRange(APInt(16, 0xaa6), APInt(16, 0x6))); 306 EXPECT_EQ(One.sub(APInt(16, 4)), 307 ConstantRange(APInt(16, 0x6))); 308 } 309 310 TEST_F(ConstantRangeTest, Multiply) { 311 EXPECT_EQ(Full.multiply(Full), Full); 312 EXPECT_EQ(Full.multiply(Empty), Empty); 313 EXPECT_EQ(Full.multiply(One), Full); 314 EXPECT_EQ(Full.multiply(Some), Full); 315 EXPECT_EQ(Full.multiply(Wrap), Full); 316 EXPECT_EQ(Empty.multiply(Empty), Empty); 317 EXPECT_EQ(Empty.multiply(One), Empty); 318 EXPECT_EQ(Empty.multiply(Some), Empty); 319 EXPECT_EQ(Empty.multiply(Wrap), Empty); 320 EXPECT_EQ(One.multiply(One), ConstantRange(APInt(16, 0xa*0xa), 321 APInt(16, 0xa*0xa + 1))); 322 EXPECT_EQ(One.multiply(Some), ConstantRange(APInt(16, 0xa*0xa), 323 APInt(16, 0xa*0xaa9 + 1))); 324 EXPECT_EQ(One.multiply(Wrap), Full); 325 EXPECT_EQ(Some.multiply(Some), Full); 326 EXPECT_EQ(Some.multiply(Wrap), Full); 327 EXPECT_EQ(Wrap.multiply(Wrap), Full); 328 329 // http://llvm.org/PR4545 330 EXPECT_EQ(ConstantRange(APInt(4, 1), APInt(4, 6)).multiply( 331 ConstantRange(APInt(4, 6), APInt(4, 2))), 332 ConstantRange(4, /*isFullSet=*/true)); 333 } 334 335 TEST_F(ConstantRangeTest, UMax) { 336 EXPECT_EQ(Full.umax(Full), Full); 337 EXPECT_EQ(Full.umax(Empty), Empty); 338 EXPECT_EQ(Full.umax(Some), ConstantRange(APInt(16, 0xa), APInt(16, 0))); 339 EXPECT_EQ(Full.umax(Wrap), Full); 340 EXPECT_EQ(Full.umax(Some), ConstantRange(APInt(16, 0xa), APInt(16, 0))); 341 EXPECT_EQ(Empty.umax(Empty), Empty); 342 EXPECT_EQ(Empty.umax(Some), Empty); 343 EXPECT_EQ(Empty.umax(Wrap), Empty); 344 EXPECT_EQ(Empty.umax(One), Empty); 345 EXPECT_EQ(Some.umax(Some), Some); 346 EXPECT_EQ(Some.umax(Wrap), ConstantRange(APInt(16, 0xa), APInt(16, 0))); 347 EXPECT_EQ(Some.umax(One), Some); 348 // TODO: ConstantRange is currently over-conservative here. 349 EXPECT_EQ(Wrap.umax(Wrap), Full); 350 EXPECT_EQ(Wrap.umax(One), ConstantRange(APInt(16, 0xa), APInt(16, 0))); 351 EXPECT_EQ(One.umax(One), One); 352 } 353 354 TEST_F(ConstantRangeTest, SMax) { 355 EXPECT_EQ(Full.smax(Full), Full); 356 EXPECT_EQ(Full.smax(Empty), Empty); 357 EXPECT_EQ(Full.smax(Some), ConstantRange(APInt(16, 0xa), 358 APInt::getSignedMinValue(16))); 359 EXPECT_EQ(Full.smax(Wrap), Full); 360 EXPECT_EQ(Full.smax(One), ConstantRange(APInt(16, 0xa), 361 APInt::getSignedMinValue(16))); 362 EXPECT_EQ(Empty.smax(Empty), Empty); 363 EXPECT_EQ(Empty.smax(Some), Empty); 364 EXPECT_EQ(Empty.smax(Wrap), Empty); 365 EXPECT_EQ(Empty.smax(One), Empty); 366 EXPECT_EQ(Some.smax(Some), Some); 367 EXPECT_EQ(Some.smax(Wrap), ConstantRange(APInt(16, 0xa), 368 APInt(16, (uint64_t)INT16_MIN))); 369 EXPECT_EQ(Some.smax(One), Some); 370 EXPECT_EQ(Wrap.smax(One), ConstantRange(APInt(16, 0xa), 371 APInt(16, (uint64_t)INT16_MIN))); 372 EXPECT_EQ(One.smax(One), One); 373 } 374 375 TEST_F(ConstantRangeTest, UDiv) { 376 EXPECT_EQ(Full.udiv(Full), Full); 377 EXPECT_EQ(Full.udiv(Empty), Empty); 378 EXPECT_EQ(Full.udiv(One), ConstantRange(APInt(16, 0), 379 APInt(16, 0xffff / 0xa + 1))); 380 EXPECT_EQ(Full.udiv(Some), ConstantRange(APInt(16, 0), 381 APInt(16, 0xffff / 0xa + 1))); 382 EXPECT_EQ(Full.udiv(Wrap), Full); 383 EXPECT_EQ(Empty.udiv(Empty), Empty); 384 EXPECT_EQ(Empty.udiv(One), Empty); 385 EXPECT_EQ(Empty.udiv(Some), Empty); 386 EXPECT_EQ(Empty.udiv(Wrap), Empty); 387 EXPECT_EQ(One.udiv(One), ConstantRange(APInt(16, 1))); 388 EXPECT_EQ(One.udiv(Some), ConstantRange(APInt(16, 0), APInt(16, 2))); 389 EXPECT_EQ(One.udiv(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xb))); 390 EXPECT_EQ(Some.udiv(Some), ConstantRange(APInt(16, 0), APInt(16, 0x111))); 391 EXPECT_EQ(Some.udiv(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xaaa))); 392 EXPECT_EQ(Wrap.udiv(Wrap), Full); 393 } 394 395 TEST_F(ConstantRangeTest, Shl) { 396 EXPECT_EQ(Full.shl(Full), Full); 397 EXPECT_EQ(Full.shl(Empty), Empty); 398 EXPECT_EQ(Full.shl(One), Full); // TODO: [0, (-1 << 0xa) + 1) 399 EXPECT_EQ(Full.shl(Some), Full); // TODO: [0, (-1 << 0xa) + 1) 400 EXPECT_EQ(Full.shl(Wrap), Full); 401 EXPECT_EQ(Empty.shl(Empty), Empty); 402 EXPECT_EQ(Empty.shl(One), Empty); 403 EXPECT_EQ(Empty.shl(Some), Empty); 404 EXPECT_EQ(Empty.shl(Wrap), Empty); 405 EXPECT_EQ(One.shl(One), ConstantRange(APInt(16, 0xa << 0xa), 406 APInt(16, (0xa << 0xa) + 1))); 407 EXPECT_EQ(One.shl(Some), Full); // TODO: [0xa << 0xa, 0) 408 EXPECT_EQ(One.shl(Wrap), Full); // TODO: [0xa, 0xa << 14 + 1) 409 EXPECT_EQ(Some.shl(Some), Full); // TODO: [0xa << 0xa, 0xfc01) 410 EXPECT_EQ(Some.shl(Wrap), Full); // TODO: [0xa, 0x7ff << 0x5 + 1) 411 EXPECT_EQ(Wrap.shl(Wrap), Full); 412 } 413 414 TEST_F(ConstantRangeTest, Lshr) { 415 EXPECT_EQ(Full.lshr(Full), Full); 416 EXPECT_EQ(Full.lshr(Empty), Empty); 417 EXPECT_EQ(Full.lshr(One), ConstantRange(APInt(16, 0), 418 APInt(16, (0xffff >> 0xa) + 1))); 419 EXPECT_EQ(Full.lshr(Some), ConstantRange(APInt(16, 0), 420 APInt(16, (0xffff >> 0xa) + 1))); 421 EXPECT_EQ(Full.lshr(Wrap), Full); 422 EXPECT_EQ(Empty.lshr(Empty), Empty); 423 EXPECT_EQ(Empty.lshr(One), Empty); 424 EXPECT_EQ(Empty.lshr(Some), Empty); 425 EXPECT_EQ(Empty.lshr(Wrap), Empty); 426 EXPECT_EQ(One.lshr(One), ConstantRange(APInt(16, 0))); 427 EXPECT_EQ(One.lshr(Some), ConstantRange(APInt(16, 0))); 428 EXPECT_EQ(One.lshr(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xb))); 429 EXPECT_EQ(Some.lshr(Some), ConstantRange(APInt(16, 0), 430 APInt(16, (0xaaa >> 0xa) + 1))); 431 EXPECT_EQ(Some.lshr(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xaaa))); 432 EXPECT_EQ(Wrap.lshr(Wrap), Full); 433 } 434 435 TEST(ConstantRange, MakeICmpRegion) { 436 // PR8250 437 ConstantRange SMax = ConstantRange(APInt::getSignedMaxValue(32)); 438 EXPECT_TRUE(ConstantRange::makeICmpRegion(ICmpInst::ICMP_SGT, 439 SMax).isEmptySet()); 440 } 441 442 } // anonymous namespace 443
