1 //===---- llvm/unittest/IR/PatternMatch.cpp - PatternMatch unit tests ----===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "llvm/IR/PatternMatch.h" 10 #include "llvm/ADT/APSInt.h" 11 #include "llvm/ADT/STLExtras.h" 12 #include "llvm/Analysis/ValueTracking.h" 13 #include "llvm/IR/BasicBlock.h" 14 #include "llvm/IR/Constants.h" 15 #include "llvm/IR/DataLayout.h" 16 #include "llvm/IR/DerivedTypes.h" 17 #include "llvm/IR/Function.h" 18 #include "llvm/IR/IRBuilder.h" 19 #include "llvm/IR/Instructions.h" 20 #include "llvm/IR/LLVMContext.h" 21 #include "llvm/IR/MDBuilder.h" 22 #include "llvm/IR/Module.h" 23 #include "llvm/IR/NoFolder.h" 24 #include "llvm/IR/Operator.h" 25 #include "llvm/IR/Type.h" 26 #include "gtest/gtest.h" 27 28 using namespace llvm; 29 using namespace llvm::PatternMatch; 30 31 namespace { 32 33 struct PatternMatchTest : ::testing::Test { 34 LLVMContext Ctx; 35 std::unique_ptr<Module> M; 36 Function *F; 37 BasicBlock *BB; 38 IRBuilder<NoFolder> IRB; 39 40 PatternMatchTest() 41 : M(new Module("PatternMatchTestModule", Ctx)), 42 F(Function::Create( 43 FunctionType::get(Type::getVoidTy(Ctx), /* IsVarArg */ false), 44 Function::ExternalLinkage, "f", M.get())), 45 BB(BasicBlock::Create(Ctx, "entry", F)), IRB(BB) {} 46 }; 47 48 TEST_F(PatternMatchTest, OneUse) { 49 // Build up a little tree of values: 50 // 51 // One = (1 + 2) + 42 52 // Two = One + 42 53 // Leaf = (Two + 8) + (Two + 13) 54 Value *One = IRB.CreateAdd(IRB.CreateAdd(IRB.getInt32(1), IRB.getInt32(2)), 55 IRB.getInt32(42)); 56 Value *Two = IRB.CreateAdd(One, IRB.getInt32(42)); 57 Value *Leaf = IRB.CreateAdd(IRB.CreateAdd(Two, IRB.getInt32(8)), 58 IRB.CreateAdd(Two, IRB.getInt32(13))); 59 Value *V; 60 61 EXPECT_TRUE(m_OneUse(m_Value(V)).match(One)); 62 EXPECT_EQ(One, V); 63 64 EXPECT_FALSE(m_OneUse(m_Value()).match(Two)); 65 EXPECT_FALSE(m_OneUse(m_Value()).match(Leaf)); 66 } 67 68 TEST_F(PatternMatchTest, SpecificIntEQ) { 69 Type *IntTy = IRB.getInt32Ty(); 70 unsigned BitWidth = IntTy->getScalarSizeInBits(); 71 72 Value *Zero = ConstantInt::get(IntTy, 0); 73 Value *One = ConstantInt::get(IntTy, 1); 74 Value *NegOne = ConstantInt::get(IntTy, -1); 75 76 EXPECT_TRUE( 77 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, 0)) 78 .match(Zero)); 79 EXPECT_FALSE( 80 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, 0)) 81 .match(One)); 82 EXPECT_FALSE( 83 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, 0)) 84 .match(NegOne)); 85 86 EXPECT_FALSE( 87 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, 1)) 88 .match(Zero)); 89 EXPECT_TRUE( 90 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, 1)) 91 .match(One)); 92 EXPECT_FALSE( 93 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, 1)) 94 .match(NegOne)); 95 96 EXPECT_FALSE( 97 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, -1)) 98 .match(Zero)); 99 EXPECT_FALSE( 100 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, -1)) 101 .match(One)); 102 EXPECT_TRUE( 103 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, -1)) 104 .match(NegOne)); 105 } 106 107 TEST_F(PatternMatchTest, SpecificIntNE) { 108 Type *IntTy = IRB.getInt32Ty(); 109 unsigned BitWidth = IntTy->getScalarSizeInBits(); 110 111 Value *Zero = ConstantInt::get(IntTy, 0); 112 Value *One = ConstantInt::get(IntTy, 1); 113 Value *NegOne = ConstantInt::get(IntTy, -1); 114 115 EXPECT_FALSE( 116 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, 0)) 117 .match(Zero)); 118 EXPECT_TRUE( 119 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, 0)) 120 .match(One)); 121 EXPECT_TRUE( 122 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, 0)) 123 .match(NegOne)); 124 125 EXPECT_TRUE( 126 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, 1)) 127 .match(Zero)); 128 EXPECT_FALSE( 129 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, 1)) 130 .match(One)); 131 EXPECT_TRUE( 132 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, 1)) 133 .match(NegOne)); 134 135 EXPECT_TRUE( 136 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, -1)) 137 .match(Zero)); 138 EXPECT_TRUE( 139 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, -1)) 140 .match(One)); 141 EXPECT_FALSE( 142 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, -1)) 143 .match(NegOne)); 144 } 145 146 TEST_F(PatternMatchTest, SpecificIntUGT) { 147 Type *IntTy = IRB.getInt32Ty(); 148 unsigned BitWidth = IntTy->getScalarSizeInBits(); 149 150 Value *Zero = ConstantInt::get(IntTy, 0); 151 Value *One = ConstantInt::get(IntTy, 1); 152 Value *NegOne = ConstantInt::get(IntTy, -1); 153 154 EXPECT_FALSE( 155 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, 0)) 156 .match(Zero)); 157 EXPECT_TRUE( 158 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, 0)) 159 .match(One)); 160 EXPECT_TRUE( 161 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, 0)) 162 .match(NegOne)); 163 164 EXPECT_FALSE( 165 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, 1)) 166 .match(Zero)); 167 EXPECT_FALSE( 168 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, 1)) 169 .match(One)); 170 EXPECT_TRUE( 171 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, 1)) 172 .match(NegOne)); 173 174 EXPECT_FALSE( 175 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, -1)) 176 .match(Zero)); 177 EXPECT_FALSE( 178 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, -1)) 179 .match(One)); 180 EXPECT_FALSE( 181 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, -1)) 182 .match(NegOne)); 183 } 184 185 TEST_F(PatternMatchTest, SignbitZeroChecks) { 186 Type *IntTy = IRB.getInt32Ty(); 187 188 Value *Zero = ConstantInt::get(IntTy, 0); 189 Value *One = ConstantInt::get(IntTy, 1); 190 Value *NegOne = ConstantInt::get(IntTy, -1); 191 192 EXPECT_TRUE(m_Negative().match(NegOne)); 193 EXPECT_FALSE(m_NonNegative().match(NegOne)); 194 EXPECT_FALSE(m_StrictlyPositive().match(NegOne)); 195 EXPECT_TRUE(m_NonPositive().match(NegOne)); 196 197 EXPECT_FALSE(m_Negative().match(Zero)); 198 EXPECT_TRUE(m_NonNegative().match(Zero)); 199 EXPECT_FALSE(m_StrictlyPositive().match(Zero)); 200 EXPECT_TRUE(m_NonPositive().match(Zero)); 201 202 EXPECT_FALSE(m_Negative().match(One)); 203 EXPECT_TRUE(m_NonNegative().match(One)); 204 EXPECT_TRUE(m_StrictlyPositive().match(One)); 205 EXPECT_FALSE(m_NonPositive().match(One)); 206 } 207 208 TEST_F(PatternMatchTest, SpecificIntUGE) { 209 Type *IntTy = IRB.getInt32Ty(); 210 unsigned BitWidth = IntTy->getScalarSizeInBits(); 211 212 Value *Zero = ConstantInt::get(IntTy, 0); 213 Value *One = ConstantInt::get(IntTy, 1); 214 Value *NegOne = ConstantInt::get(IntTy, -1); 215 216 EXPECT_TRUE( 217 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, 0)) 218 .match(Zero)); 219 EXPECT_TRUE( 220 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, 0)) 221 .match(One)); 222 EXPECT_TRUE( 223 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, 0)) 224 .match(NegOne)); 225 226 EXPECT_FALSE( 227 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, 1)) 228 .match(Zero)); 229 EXPECT_TRUE( 230 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, 1)) 231 .match(One)); 232 EXPECT_TRUE( 233 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, 1)) 234 .match(NegOne)); 235 236 EXPECT_FALSE( 237 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, -1)) 238 .match(Zero)); 239 EXPECT_FALSE( 240 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, -1)) 241 .match(One)); 242 EXPECT_TRUE( 243 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, -1)) 244 .match(NegOne)); 245 } 246 247 TEST_F(PatternMatchTest, SpecificIntULT) { 248 Type *IntTy = IRB.getInt32Ty(); 249 unsigned BitWidth = IntTy->getScalarSizeInBits(); 250 251 Value *Zero = ConstantInt::get(IntTy, 0); 252 Value *One = ConstantInt::get(IntTy, 1); 253 Value *NegOne = ConstantInt::get(IntTy, -1); 254 255 EXPECT_FALSE( 256 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, 0)) 257 .match(Zero)); 258 EXPECT_FALSE( 259 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, 0)) 260 .match(One)); 261 EXPECT_FALSE( 262 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, 0)) 263 .match(NegOne)); 264 265 EXPECT_TRUE( 266 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, 1)) 267 .match(Zero)); 268 EXPECT_FALSE( 269 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, 1)) 270 .match(One)); 271 EXPECT_FALSE( 272 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, 1)) 273 .match(NegOne)); 274 275 EXPECT_TRUE( 276 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, -1)) 277 .match(Zero)); 278 EXPECT_TRUE( 279 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, -1)) 280 .match(One)); 281 EXPECT_FALSE( 282 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, -1)) 283 .match(NegOne)); 284 } 285 286 TEST_F(PatternMatchTest, SpecificIntULE) { 287 Type *IntTy = IRB.getInt32Ty(); 288 unsigned BitWidth = IntTy->getScalarSizeInBits(); 289 290 Value *Zero = ConstantInt::get(IntTy, 0); 291 Value *One = ConstantInt::get(IntTy, 1); 292 Value *NegOne = ConstantInt::get(IntTy, -1); 293 294 EXPECT_TRUE( 295 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, 0)) 296 .match(Zero)); 297 EXPECT_FALSE( 298 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, 0)) 299 .match(One)); 300 EXPECT_FALSE( 301 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, 0)) 302 .match(NegOne)); 303 304 EXPECT_TRUE( 305 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, 1)) 306 .match(Zero)); 307 EXPECT_TRUE( 308 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, 1)) 309 .match(One)); 310 EXPECT_FALSE( 311 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, 1)) 312 .match(NegOne)); 313 314 EXPECT_TRUE( 315 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, -1)) 316 .match(Zero)); 317 EXPECT_TRUE( 318 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, -1)) 319 .match(One)); 320 EXPECT_TRUE( 321 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, -1)) 322 .match(NegOne)); 323 } 324 325 TEST_F(PatternMatchTest, SpecificIntSGT) { 326 Type *IntTy = IRB.getInt32Ty(); 327 unsigned BitWidth = IntTy->getScalarSizeInBits(); 328 329 Value *Zero = ConstantInt::get(IntTy, 0); 330 Value *One = ConstantInt::get(IntTy, 1); 331 Value *NegOne = ConstantInt::get(IntTy, -1); 332 333 EXPECT_FALSE( 334 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, 0)) 335 .match(Zero)); 336 EXPECT_TRUE( 337 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, 0)) 338 .match(One)); 339 EXPECT_FALSE( 340 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, 0)) 341 .match(NegOne)); 342 343 EXPECT_FALSE( 344 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, 1)) 345 .match(Zero)); 346 EXPECT_FALSE( 347 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, 1)) 348 .match(One)); 349 EXPECT_FALSE( 350 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, 1)) 351 .match(NegOne)); 352 353 EXPECT_TRUE( 354 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, -1)) 355 .match(Zero)); 356 EXPECT_TRUE( 357 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, -1)) 358 .match(One)); 359 EXPECT_FALSE( 360 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, -1)) 361 .match(NegOne)); 362 } 363 364 TEST_F(PatternMatchTest, SpecificIntSGE) { 365 Type *IntTy = IRB.getInt32Ty(); 366 unsigned BitWidth = IntTy->getScalarSizeInBits(); 367 368 Value *Zero = ConstantInt::get(IntTy, 0); 369 Value *One = ConstantInt::get(IntTy, 1); 370 Value *NegOne = ConstantInt::get(IntTy, -1); 371 372 EXPECT_TRUE( 373 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, 0)) 374 .match(Zero)); 375 EXPECT_TRUE( 376 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, 0)) 377 .match(One)); 378 EXPECT_FALSE( 379 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, 0)) 380 .match(NegOne)); 381 382 EXPECT_FALSE( 383 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, 1)) 384 .match(Zero)); 385 EXPECT_TRUE( 386 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, 1)) 387 .match(One)); 388 EXPECT_FALSE( 389 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, 1)) 390 .match(NegOne)); 391 392 EXPECT_TRUE( 393 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, -1)) 394 .match(Zero)); 395 EXPECT_TRUE( 396 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, -1)) 397 .match(One)); 398 EXPECT_TRUE( 399 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, -1)) 400 .match(NegOne)); 401 } 402 403 TEST_F(PatternMatchTest, SpecificIntSLT) { 404 Type *IntTy = IRB.getInt32Ty(); 405 unsigned BitWidth = IntTy->getScalarSizeInBits(); 406 407 Value *Zero = ConstantInt::get(IntTy, 0); 408 Value *One = ConstantInt::get(IntTy, 1); 409 Value *NegOne = ConstantInt::get(IntTy, -1); 410 411 EXPECT_FALSE( 412 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, 0)) 413 .match(Zero)); 414 EXPECT_FALSE( 415 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, 0)) 416 .match(One)); 417 EXPECT_TRUE( 418 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, 0)) 419 .match(NegOne)); 420 421 EXPECT_TRUE( 422 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, 1)) 423 .match(Zero)); 424 EXPECT_FALSE( 425 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, 1)) 426 .match(One)); 427 EXPECT_TRUE( 428 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, 1)) 429 .match(NegOne)); 430 431 EXPECT_FALSE( 432 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, -1)) 433 .match(Zero)); 434 EXPECT_FALSE( 435 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, -1)) 436 .match(One)); 437 EXPECT_FALSE( 438 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, -1)) 439 .match(NegOne)); 440 } 441 442 TEST_F(PatternMatchTest, SpecificIntSLE) { 443 Type *IntTy = IRB.getInt32Ty(); 444 unsigned BitWidth = IntTy->getScalarSizeInBits(); 445 446 Value *Zero = ConstantInt::get(IntTy, 0); 447 Value *One = ConstantInt::get(IntTy, 1); 448 Value *NegOne = ConstantInt::get(IntTy, -1); 449 450 EXPECT_TRUE( 451 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, 0)) 452 .match(Zero)); 453 EXPECT_FALSE( 454 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, 0)) 455 .match(One)); 456 EXPECT_TRUE( 457 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, 0)) 458 .match(NegOne)); 459 460 EXPECT_TRUE( 461 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, 1)) 462 .match(Zero)); 463 EXPECT_TRUE( 464 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, 1)) 465 .match(One)); 466 EXPECT_TRUE( 467 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, 1)) 468 .match(NegOne)); 469 470 EXPECT_FALSE( 471 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, -1)) 472 .match(Zero)); 473 EXPECT_FALSE( 474 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, -1)) 475 .match(One)); 476 EXPECT_TRUE( 477 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, -1)) 478 .match(NegOne)); 479 } 480 481 TEST_F(PatternMatchTest, Unless) { 482 Value *X = IRB.CreateAdd(IRB.getInt32(1), IRB.getInt32(0)); 483 484 EXPECT_TRUE(m_Add(m_One(), m_Zero()).match(X)); 485 EXPECT_FALSE(m_Add(m_Zero(), m_One()).match(X)); 486 487 EXPECT_FALSE(m_Unless(m_Add(m_One(), m_Zero())).match(X)); 488 EXPECT_TRUE(m_Unless(m_Add(m_Zero(), m_One())).match(X)); 489 490 EXPECT_TRUE(m_c_Add(m_One(), m_Zero()).match(X)); 491 EXPECT_TRUE(m_c_Add(m_Zero(), m_One()).match(X)); 492 493 EXPECT_FALSE(m_Unless(m_c_Add(m_One(), m_Zero())).match(X)); 494 EXPECT_FALSE(m_Unless(m_c_Add(m_Zero(), m_One())).match(X)); 495 } 496 497 TEST_F(PatternMatchTest, BitWise) { 498 Value *Or = IRB.CreateOr(IRB.getInt32(1), IRB.getInt32(0)); 499 Value *Xor = IRB.CreateXor(IRB.getInt32(1), IRB.getInt32(0)); 500 Value *And = IRB.CreateXor(IRB.getInt32(1), IRB.getInt32(0)); 501 Constant *T = IRB.getInt1(true); 502 Constant *F = IRB.getInt1(false); 503 Value *Alloca = IRB.CreateAlloca(IRB.getInt1Ty()); 504 Value *X = IRB.CreateLoad(IRB.getInt1Ty(), Alloca); 505 Value *Y = IRB.CreateLoad(IRB.getInt1Ty(), Alloca); 506 Value *LAnd = IRB.CreateSelect(X, Y, F); 507 Value *LOr = IRB.CreateSelect(X, T, Y); 508 Value *Add = IRB.CreateAdd(IRB.getInt32(1), IRB.getInt32(0)); 509 510 EXPECT_TRUE(m_BitwiseLogic(m_One(), m_Zero()).match(Or)); 511 EXPECT_TRUE(m_BitwiseLogic(m_One(), m_Zero()).match(Xor)); 512 EXPECT_TRUE(m_BitwiseLogic(m_One(), m_Zero()).match(And)); 513 EXPECT_FALSE(m_BitwiseLogic(m_Value(), m_Value()).match(LAnd)); 514 EXPECT_FALSE(m_BitwiseLogic(m_Value(), m_Value()).match(LOr)); 515 EXPECT_FALSE(m_BitwiseLogic(m_Value(), m_Value()).match(Add)); 516 517 EXPECT_FALSE(m_BitwiseLogic(m_Zero(), m_One()).match(Or)); 518 EXPECT_FALSE(m_BitwiseLogic(m_Zero(), m_One()).match(Xor)); 519 EXPECT_FALSE(m_BitwiseLogic(m_Zero(), m_One()).match(And)); 520 521 EXPECT_TRUE(m_c_BitwiseLogic(m_One(), m_Zero()).match(Or)); 522 EXPECT_TRUE(m_c_BitwiseLogic(m_One(), m_Zero()).match(Xor)); 523 EXPECT_TRUE(m_c_BitwiseLogic(m_One(), m_Zero()).match(And)); 524 EXPECT_FALSE(m_c_BitwiseLogic(m_Value(), m_Value()).match(LAnd)); 525 EXPECT_FALSE(m_c_BitwiseLogic(m_Value(), m_Value()).match(LOr)); 526 EXPECT_FALSE(m_c_BitwiseLogic(m_Value(), m_Value()).match(Add)); 527 528 EXPECT_TRUE(m_c_BitwiseLogic(m_Zero(), m_One()).match(Or)); 529 EXPECT_TRUE(m_c_BitwiseLogic(m_Zero(), m_One()).match(Xor)); 530 EXPECT_TRUE(m_c_BitwiseLogic(m_Zero(), m_One()).match(And)); 531 532 EXPECT_FALSE(m_c_BitwiseLogic(m_One(), m_One()).match(Or)); 533 EXPECT_FALSE(m_c_BitwiseLogic(m_Zero(), m_Zero()).match(Xor)); 534 } 535 536 TEST_F(PatternMatchTest, ZExtSExtSelf) { 537 LLVMContext &Ctx = IRB.getContext(); 538 539 Value *One32 = IRB.getInt32(1); 540 Value *One64Z = IRB.CreateZExt(One32, IntegerType::getInt64Ty(Ctx)); 541 Value *One64S = IRB.CreateSExt(One32, IntegerType::getInt64Ty(Ctx)); 542 543 EXPECT_TRUE(m_One().match(One32)); 544 EXPECT_FALSE(m_One().match(One64Z)); 545 EXPECT_FALSE(m_One().match(One64S)); 546 547 EXPECT_FALSE(m_ZExt(m_One()).match(One32)); 548 EXPECT_TRUE(m_ZExt(m_One()).match(One64Z)); 549 EXPECT_FALSE(m_ZExt(m_One()).match(One64S)); 550 551 EXPECT_FALSE(m_SExt(m_One()).match(One32)); 552 EXPECT_FALSE(m_SExt(m_One()).match(One64Z)); 553 EXPECT_TRUE(m_SExt(m_One()).match(One64S)); 554 555 EXPECT_TRUE(m_ZExtOrSelf(m_One()).match(One32)); 556 EXPECT_TRUE(m_ZExtOrSelf(m_One()).match(One64Z)); 557 EXPECT_FALSE(m_ZExtOrSelf(m_One()).match(One64S)); 558 559 EXPECT_TRUE(m_SExtOrSelf(m_One()).match(One32)); 560 EXPECT_FALSE(m_SExtOrSelf(m_One()).match(One64Z)); 561 EXPECT_TRUE(m_SExtOrSelf(m_One()).match(One64S)); 562 563 EXPECT_FALSE(m_ZExtOrSExt(m_One()).match(One32)); 564 EXPECT_TRUE(m_ZExtOrSExt(m_One()).match(One64Z)); 565 EXPECT_TRUE(m_ZExtOrSExt(m_One()).match(One64S)); 566 567 EXPECT_TRUE(m_ZExtOrSExtOrSelf(m_One()).match(One32)); 568 EXPECT_TRUE(m_ZExtOrSExtOrSelf(m_One()).match(One64Z)); 569 EXPECT_TRUE(m_ZExtOrSExtOrSelf(m_One()).match(One64S)); 570 } 571 572 TEST_F(PatternMatchTest, BitCast) { 573 Value *OneDouble = ConstantFP::get(IRB.getDoubleTy(), APFloat(1.0)); 574 Value *ScalableDouble = ConstantFP::get( 575 VectorType::get(IRB.getDoubleTy(), 2, /*Scalable=*/true), APFloat(1.0)); 576 // scalar -> scalar 577 Value *DoubleToI64 = IRB.CreateBitCast(OneDouble, IRB.getInt64Ty()); 578 // scalar -> vector 579 Value *DoubleToV2I32 = IRB.CreateBitCast( 580 OneDouble, VectorType::get(IRB.getInt32Ty(), 2, /*Scalable=*/false)); 581 // vector -> scalar 582 Value *V2I32ToDouble = IRB.CreateBitCast(DoubleToV2I32, IRB.getDoubleTy()); 583 // vector -> vector (same count) 584 Value *V2I32ToV2Float = IRB.CreateBitCast( 585 DoubleToV2I32, VectorType::get(IRB.getFloatTy(), 2, /*Scalable=*/false)); 586 // vector -> vector (different count) 587 Value *V2I32TOV4I16 = IRB.CreateBitCast( 588 DoubleToV2I32, VectorType::get(IRB.getInt16Ty(), 4, /*Scalable=*/false)); 589 // scalable vector -> scalable vector (same count) 590 Value *NXV2DoubleToNXV2I64 = IRB.CreateBitCast( 591 ScalableDouble, VectorType::get(IRB.getInt64Ty(), 2, /*Scalable=*/true)); 592 // scalable vector -> scalable vector (different count) 593 Value *NXV2I64ToNXV4I32 = IRB.CreateBitCast( 594 NXV2DoubleToNXV2I64, 595 VectorType::get(IRB.getInt32Ty(), 4, /*Scalable=*/true)); 596 597 EXPECT_TRUE(m_BitCast(m_Value()).match(DoubleToI64)); 598 EXPECT_TRUE(m_BitCast(m_Value()).match(DoubleToV2I32)); 599 EXPECT_TRUE(m_BitCast(m_Value()).match(V2I32ToDouble)); 600 EXPECT_TRUE(m_BitCast(m_Value()).match(V2I32ToV2Float)); 601 EXPECT_TRUE(m_BitCast(m_Value()).match(V2I32TOV4I16)); 602 EXPECT_TRUE(m_BitCast(m_Value()).match(NXV2DoubleToNXV2I64)); 603 EXPECT_TRUE(m_BitCast(m_Value()).match(NXV2I64ToNXV4I32)); 604 605 EXPECT_TRUE(m_ElementWiseBitCast(m_Value()).match(DoubleToI64)); 606 EXPECT_FALSE(m_ElementWiseBitCast(m_Value()).match(DoubleToV2I32)); 607 EXPECT_FALSE(m_ElementWiseBitCast(m_Value()).match(V2I32ToDouble)); 608 EXPECT_TRUE(m_ElementWiseBitCast(m_Value()).match(V2I32ToV2Float)); 609 EXPECT_FALSE(m_ElementWiseBitCast(m_Value()).match(V2I32TOV4I16)); 610 EXPECT_TRUE(m_ElementWiseBitCast(m_Value()).match(NXV2DoubleToNXV2I64)); 611 EXPECT_FALSE(m_ElementWiseBitCast(m_Value()).match(NXV2I64ToNXV4I32)); 612 } 613 614 TEST_F(PatternMatchTest, CheckedInt) { 615 Type *I8Ty = IRB.getInt8Ty(); 616 const APInt *Res = nullptr; 617 618 auto CheckUgt1 = [](const APInt &C) { return C.ugt(1); }; 619 auto CheckTrue = [](const APInt &) { return true; }; 620 auto CheckFalse = [](const APInt &) { return false; }; 621 auto CheckNonZero = [](const APInt &C) { return !C.isZero(); }; 622 auto CheckPow2 = [](const APInt &C) { return C.isPowerOf2(); }; 623 624 auto DoScalarCheck = [&](int8_t Val) { 625 APInt APVal(8, Val); 626 Constant *C = ConstantInt::get(I8Ty, Val); 627 628 Res = nullptr; 629 EXPECT_TRUE(m_CheckedInt(CheckTrue).match(C)); 630 EXPECT_TRUE(m_CheckedInt(Res, CheckTrue).match(C)); 631 EXPECT_EQ(*Res, APVal); 632 633 Res = nullptr; 634 EXPECT_FALSE(m_CheckedInt(CheckFalse).match(C)); 635 EXPECT_FALSE(m_CheckedInt(Res, CheckFalse).match(C)); 636 637 Res = nullptr; 638 EXPECT_EQ(CheckUgt1(APVal), m_CheckedInt(CheckUgt1).match(C)); 639 EXPECT_EQ(CheckUgt1(APVal), m_CheckedInt(Res, CheckUgt1).match(C)); 640 if (CheckUgt1(APVal)) { 641 EXPECT_NE(Res, nullptr); 642 EXPECT_EQ(*Res, APVal); 643 } 644 645 Res = nullptr; 646 EXPECT_EQ(CheckNonZero(APVal), m_CheckedInt(CheckNonZero).match(C)); 647 EXPECT_EQ(CheckNonZero(APVal), m_CheckedInt(Res, CheckNonZero).match(C)); 648 if (CheckNonZero(APVal)) { 649 EXPECT_NE(Res, nullptr); 650 EXPECT_EQ(*Res, APVal); 651 } 652 653 Res = nullptr; 654 EXPECT_EQ(CheckPow2(APVal), m_CheckedInt(CheckPow2).match(C)); 655 EXPECT_EQ(CheckPow2(APVal), m_CheckedInt(Res, CheckPow2).match(C)); 656 if (CheckPow2(APVal)) { 657 EXPECT_NE(Res, nullptr); 658 EXPECT_EQ(*Res, APVal); 659 } 660 661 }; 662 663 DoScalarCheck(0); 664 DoScalarCheck(1); 665 DoScalarCheck(2); 666 DoScalarCheck(3); 667 668 EXPECT_FALSE(m_CheckedInt(CheckTrue).match(UndefValue::get(I8Ty))); 669 EXPECT_FALSE(m_CheckedInt(Res, CheckTrue).match(UndefValue::get(I8Ty))); 670 EXPECT_EQ(Res, nullptr); 671 672 EXPECT_FALSE(m_CheckedInt(CheckFalse).match(UndefValue::get(I8Ty))); 673 EXPECT_FALSE(m_CheckedInt(Res, CheckFalse).match(UndefValue::get(I8Ty))); 674 EXPECT_EQ(Res, nullptr); 675 676 EXPECT_FALSE(m_CheckedInt(CheckTrue).match(PoisonValue::get(I8Ty))); 677 EXPECT_FALSE(m_CheckedInt(Res, CheckTrue).match(PoisonValue::get(I8Ty))); 678 EXPECT_EQ(Res, nullptr); 679 680 EXPECT_FALSE(m_CheckedInt(CheckFalse).match(PoisonValue::get(I8Ty))); 681 EXPECT_FALSE(m_CheckedInt(Res, CheckFalse).match(PoisonValue::get(I8Ty))); 682 EXPECT_EQ(Res, nullptr); 683 684 auto DoVecCheckImpl = [&](ArrayRef<std::optional<int8_t>> Vals, 685 function_ref<bool(const APInt &)> CheckFn, 686 bool UndefAsPoison) { 687 SmallVector<Constant *> VecElems; 688 std::optional<bool> Okay; 689 bool AllSame = true; 690 bool HasUndef = false; 691 std::optional<APInt> First; 692 for (const std::optional<int8_t> &Val : Vals) { 693 if (!Val.has_value()) { 694 VecElems.push_back(UndefAsPoison ? PoisonValue::get(I8Ty) 695 : UndefValue::get(I8Ty)); 696 HasUndef = true; 697 } else { 698 if (!Okay.has_value()) 699 Okay = true; 700 APInt APVal(8, *Val); 701 if (!First.has_value()) 702 First = APVal; 703 else 704 AllSame &= First->eq(APVal); 705 Okay = *Okay && CheckFn(APVal); 706 VecElems.push_back(ConstantInt::get(I8Ty, *Val)); 707 } 708 } 709 710 Constant *C = ConstantVector::get(VecElems); 711 EXPECT_EQ(!(HasUndef && !UndefAsPoison) && Okay.value_or(false), 712 m_CheckedInt(CheckFn).match(C)); 713 714 Res = nullptr; 715 bool Expec = 716 !(HasUndef && !UndefAsPoison) && AllSame && Okay.value_or(false); 717 EXPECT_EQ(Expec, m_CheckedInt(Res, CheckFn).match(C)); 718 if (Expec) { 719 EXPECT_NE(Res, nullptr); 720 EXPECT_EQ(*Res, *First); 721 } 722 }; 723 auto DoVecCheck = [&](ArrayRef<std::optional<int8_t>> Vals) { 724 DoVecCheckImpl(Vals, CheckTrue, /*UndefAsPoison=*/false); 725 DoVecCheckImpl(Vals, CheckFalse, /*UndefAsPoison=*/false); 726 DoVecCheckImpl(Vals, CheckTrue, /*UndefAsPoison=*/true); 727 DoVecCheckImpl(Vals, CheckFalse, /*UndefAsPoison=*/true); 728 DoVecCheckImpl(Vals, CheckUgt1, /*UndefAsPoison=*/false); 729 DoVecCheckImpl(Vals, CheckNonZero, /*UndefAsPoison=*/false); 730 DoVecCheckImpl(Vals, CheckPow2, /*UndefAsPoison=*/false); 731 }; 732 733 DoVecCheck({0, 1}); 734 DoVecCheck({1, 1}); 735 DoVecCheck({1, 2}); 736 DoVecCheck({1, std::nullopt}); 737 DoVecCheck({1, std::nullopt, 1}); 738 DoVecCheck({1, std::nullopt, 2}); 739 DoVecCheck({std::nullopt, std::nullopt, std::nullopt}); 740 } 741 742 TEST_F(PatternMatchTest, Power2) { 743 Value *C128 = IRB.getInt32(128); 744 Value *CNeg128 = ConstantExpr::getNeg(cast<Constant>(C128)); 745 746 EXPECT_TRUE(m_Power2().match(C128)); 747 EXPECT_FALSE(m_Power2().match(CNeg128)); 748 749 EXPECT_TRUE(m_Power2OrZero().match(C128)); 750 EXPECT_FALSE(m_Power2OrZero().match(CNeg128)); 751 752 EXPECT_FALSE(m_NegatedPower2().match(C128)); 753 EXPECT_TRUE(m_NegatedPower2().match(CNeg128)); 754 755 EXPECT_FALSE(m_NegatedPower2OrZero().match(C128)); 756 EXPECT_TRUE(m_NegatedPower2OrZero().match(CNeg128)); 757 758 Value *CIntMin = IRB.getInt64(APSInt::getSignedMinValue(64).getSExtValue()); 759 Value *CNegIntMin = ConstantExpr::getNeg(cast<Constant>(CIntMin)); 760 761 EXPECT_TRUE(m_Power2().match(CIntMin)); 762 EXPECT_TRUE(m_Power2().match(CNegIntMin)); 763 764 EXPECT_TRUE(m_Power2OrZero().match(CIntMin)); 765 EXPECT_TRUE(m_Power2OrZero().match(CNegIntMin)); 766 767 EXPECT_TRUE(m_NegatedPower2().match(CIntMin)); 768 EXPECT_TRUE(m_NegatedPower2().match(CNegIntMin)); 769 770 EXPECT_TRUE(m_NegatedPower2OrZero().match(CIntMin)); 771 EXPECT_TRUE(m_NegatedPower2OrZero().match(CNegIntMin)); 772 773 Value *CZero = IRB.getInt64(0); 774 775 EXPECT_FALSE(m_Power2().match(CZero)); 776 777 EXPECT_TRUE(m_Power2OrZero().match(CZero)); 778 779 EXPECT_FALSE(m_NegatedPower2().match(CZero)); 780 781 EXPECT_TRUE(m_NegatedPower2OrZero().match(CZero)); 782 } 783 784 TEST_F(PatternMatchTest, Not) { 785 Value *C1 = IRB.getInt32(1); 786 Value *C2 = IRB.getInt32(2); 787 Value *C3 = IRB.getInt32(3); 788 Instruction *Not = BinaryOperator::CreateXor(C1, C2); 789 790 // When `m_Not` does not match the `not` itself, 791 // it should not try to apply the inner matcher. 792 Value *Val = C3; 793 EXPECT_FALSE(m_Not(m_Value(Val)).match(Not)); 794 EXPECT_EQ(Val, C3); 795 Not->deleteValue(); 796 } 797 798 TEST_F(PatternMatchTest, CommutativeDeferredValue) { 799 Value *X = IRB.getInt32(1); 800 Value *Y = IRB.getInt32(2); 801 802 { 803 Value *tX = X; 804 EXPECT_TRUE(match(X, m_Deferred(tX))); 805 EXPECT_FALSE(match(Y, m_Deferred(tX))); 806 } 807 { 808 const Value *tX = X; 809 EXPECT_TRUE(match(X, m_Deferred(tX))); 810 EXPECT_FALSE(match(Y, m_Deferred(tX))); 811 } 812 { 813 Value *const tX = X; 814 EXPECT_TRUE(match(X, m_Deferred(tX))); 815 EXPECT_FALSE(match(Y, m_Deferred(tX))); 816 } 817 { 818 const Value *const tX = X; 819 EXPECT_TRUE(match(X, m_Deferred(tX))); 820 EXPECT_FALSE(match(Y, m_Deferred(tX))); 821 } 822 823 { 824 Value *tX = nullptr; 825 EXPECT_TRUE(match(IRB.CreateAnd(X, X), m_And(m_Value(tX), m_Deferred(tX)))); 826 EXPECT_EQ(tX, X); 827 } 828 { 829 Value *tX = nullptr; 830 EXPECT_FALSE( 831 match(IRB.CreateAnd(X, Y), m_c_And(m_Value(tX), m_Deferred(tX)))); 832 } 833 834 auto checkMatch = [X, Y](Value *Pattern) { 835 Value *tX = nullptr, *tY = nullptr; 836 EXPECT_TRUE(match( 837 Pattern, m_c_And(m_Value(tX), m_c_And(m_Deferred(tX), m_Value(tY))))); 838 EXPECT_EQ(tX, X); 839 EXPECT_EQ(tY, Y); 840 }; 841 842 checkMatch(IRB.CreateAnd(X, IRB.CreateAnd(X, Y))); 843 checkMatch(IRB.CreateAnd(X, IRB.CreateAnd(Y, X))); 844 checkMatch(IRB.CreateAnd(IRB.CreateAnd(X, Y), X)); 845 checkMatch(IRB.CreateAnd(IRB.CreateAnd(Y, X), X)); 846 } 847 848 TEST_F(PatternMatchTest, FloatingPointOrderedMin) { 849 Type *FltTy = IRB.getFloatTy(); 850 Value *L = ConstantFP::get(FltTy, 1.0); 851 Value *R = ConstantFP::get(FltTy, 2.0); 852 Value *MatchL, *MatchR; 853 854 // Test OLT. 855 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 856 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), L, R))); 857 EXPECT_EQ(L, MatchL); 858 EXPECT_EQ(R, MatchR); 859 860 // Test OLE. 861 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 862 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), L, R))); 863 EXPECT_EQ(L, MatchL); 864 EXPECT_EQ(R, MatchR); 865 866 // Test no match on OGE. 867 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 868 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), L, R))); 869 870 // Test no match on OGT. 871 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 872 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), L, R))); 873 874 // Test inverted selects. Note, that this "inverts" the ordering, e.g.: 875 // %cmp = fcmp oge L, R 876 // %min = select %cmp R, L 877 // Given L == NaN 878 // the above is expanded to %cmp == false ==> %min = L 879 // which is true for UnordFMin, not OrdFMin, so test that: 880 881 // [OU]GE with inverted select. 882 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 883 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), R, L))); 884 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 885 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), R, L))); 886 EXPECT_EQ(L, MatchL); 887 EXPECT_EQ(R, MatchR); 888 889 // [OU]GT with inverted select. 890 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 891 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), R, L))); 892 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 893 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), R, L))); 894 EXPECT_EQ(L, MatchL); 895 EXPECT_EQ(R, MatchR); 896 } 897 898 TEST_F(PatternMatchTest, FloatingPointOrderedMax) { 899 Type *FltTy = IRB.getFloatTy(); 900 Value *L = ConstantFP::get(FltTy, 1.0); 901 Value *R = ConstantFP::get(FltTy, 2.0); 902 Value *MatchL, *MatchR; 903 904 // Test OGT. 905 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 906 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), L, R))); 907 EXPECT_EQ(L, MatchL); 908 EXPECT_EQ(R, MatchR); 909 910 // Test OGE. 911 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 912 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), L, R))); 913 EXPECT_EQ(L, MatchL); 914 EXPECT_EQ(R, MatchR); 915 916 // Test no match on OLE. 917 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 918 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), L, R))); 919 920 // Test no match on OLT. 921 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 922 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), L, R))); 923 924 925 // Test inverted selects. Note, that this "inverts" the ordering, e.g.: 926 // %cmp = fcmp ole L, R 927 // %max = select %cmp, R, L 928 // Given L == NaN, 929 // the above is expanded to %cmp == false ==> %max == L 930 // which is true for UnordFMax, not OrdFMax, so test that: 931 932 // [OU]LE with inverted select. 933 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 934 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), R, L))); 935 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 936 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), R, L))); 937 EXPECT_EQ(L, MatchL); 938 EXPECT_EQ(R, MatchR); 939 940 // [OUT]LT with inverted select. 941 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 942 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), R, L))); 943 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 944 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), R, L))); 945 EXPECT_EQ(L, MatchL); 946 EXPECT_EQ(R, MatchR); 947 } 948 949 TEST_F(PatternMatchTest, FloatingPointUnorderedMin) { 950 Type *FltTy = IRB.getFloatTy(); 951 Value *L = ConstantFP::get(FltTy, 1.0); 952 Value *R = ConstantFP::get(FltTy, 2.0); 953 Value *MatchL, *MatchR; 954 955 // Test ULT. 956 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 957 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), L, R))); 958 EXPECT_EQ(L, MatchL); 959 EXPECT_EQ(R, MatchR); 960 961 // Test ULE. 962 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 963 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), L, R))); 964 EXPECT_EQ(L, MatchL); 965 EXPECT_EQ(R, MatchR); 966 967 // Test no match on UGE. 968 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 969 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), L, R))); 970 971 // Test no match on UGT. 972 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 973 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), L, R))); 974 975 // Test inverted selects. Note, that this "inverts" the ordering, e.g.: 976 // %cmp = fcmp uge L, R 977 // %min = select %cmp R, L 978 // Given L == NaN 979 // the above is expanded to %cmp == true ==> %min = R 980 // which is true for OrdFMin, not UnordFMin, so test that: 981 982 // [UO]GE with inverted select. 983 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 984 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), R, L))); 985 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 986 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), R, L))); 987 EXPECT_EQ(L, MatchL); 988 EXPECT_EQ(R, MatchR); 989 990 // [UO]GT with inverted select. 991 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 992 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), R, L))); 993 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 994 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), R, L))); 995 EXPECT_EQ(L, MatchL); 996 EXPECT_EQ(R, MatchR); 997 } 998 999 TEST_F(PatternMatchTest, FloatingPointUnorderedMax) { 1000 Type *FltTy = IRB.getFloatTy(); 1001 Value *L = ConstantFP::get(FltTy, 1.0); 1002 Value *R = ConstantFP::get(FltTy, 2.0); 1003 Value *MatchL, *MatchR; 1004 1005 // Test UGT. 1006 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 1007 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), L, R))); 1008 EXPECT_EQ(L, MatchL); 1009 EXPECT_EQ(R, MatchR); 1010 1011 // Test UGE. 1012 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 1013 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), L, R))); 1014 EXPECT_EQ(L, MatchL); 1015 EXPECT_EQ(R, MatchR); 1016 1017 // Test no match on ULE. 1018 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 1019 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), L, R))); 1020 1021 // Test no match on ULT. 1022 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 1023 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), L, R))); 1024 1025 // Test inverted selects. Note, that this "inverts" the ordering, e.g.: 1026 // %cmp = fcmp ule L, R 1027 // %max = select %cmp R, L 1028 // Given L == NaN 1029 // the above is expanded to %cmp == true ==> %max = R 1030 // which is true for OrdFMax, not UnordFMax, so test that: 1031 1032 // [UO]LE with inverted select. 1033 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 1034 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), R, L))); 1035 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 1036 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), R, L))); 1037 EXPECT_EQ(L, MatchL); 1038 EXPECT_EQ(R, MatchR); 1039 1040 // [UO]LT with inverted select. 1041 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 1042 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), R, L))); 1043 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 1044 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), R, L))); 1045 EXPECT_EQ(L, MatchL); 1046 EXPECT_EQ(R, MatchR); 1047 } 1048 1049 TEST_F(PatternMatchTest, OverflowingBinOps) { 1050 Value *L = IRB.getInt32(1); 1051 Value *R = IRB.getInt32(2); 1052 Value *MatchL, *MatchR; 1053 1054 EXPECT_TRUE( 1055 m_NSWAdd(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWAdd(L, R))); 1056 EXPECT_EQ(L, MatchL); 1057 EXPECT_EQ(R, MatchR); 1058 MatchL = MatchR = nullptr; 1059 EXPECT_TRUE( 1060 m_NSWSub(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWSub(L, R))); 1061 EXPECT_EQ(L, MatchL); 1062 EXPECT_EQ(R, MatchR); 1063 MatchL = MatchR = nullptr; 1064 EXPECT_TRUE( 1065 m_NSWMul(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWMul(L, R))); 1066 EXPECT_EQ(L, MatchL); 1067 EXPECT_EQ(R, MatchR); 1068 MatchL = MatchR = nullptr; 1069 EXPECT_TRUE(m_NSWShl(m_Value(MatchL), m_Value(MatchR)).match( 1070 IRB.CreateShl(L, R, "", /* NUW */ false, /* NSW */ true))); 1071 EXPECT_EQ(L, MatchL); 1072 EXPECT_EQ(R, MatchR); 1073 1074 EXPECT_TRUE( 1075 m_NUWAdd(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWAdd(L, R))); 1076 EXPECT_EQ(L, MatchL); 1077 EXPECT_EQ(R, MatchR); 1078 MatchL = MatchR = nullptr; 1079 1080 EXPECT_TRUE( 1081 m_c_NUWAdd(m_Specific(L), m_Specific(R)).match(IRB.CreateNUWAdd(L, R))); 1082 EXPECT_TRUE( 1083 m_c_NUWAdd(m_Specific(R), m_Specific(L)).match(IRB.CreateNUWAdd(L, R))); 1084 EXPECT_FALSE( 1085 m_c_NUWAdd(m_Specific(R), m_ZeroInt()).match(IRB.CreateNUWAdd(L, R))); 1086 EXPECT_FALSE( 1087 m_NUWAdd(m_Specific(R), m_Specific(L)).match(IRB.CreateNUWAdd(L, R))); 1088 1089 EXPECT_TRUE( 1090 m_NUWSub(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWSub(L, R))); 1091 EXPECT_EQ(L, MatchL); 1092 EXPECT_EQ(R, MatchR); 1093 MatchL = MatchR = nullptr; 1094 EXPECT_TRUE( 1095 m_NUWMul(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWMul(L, R))); 1096 EXPECT_EQ(L, MatchL); 1097 EXPECT_EQ(R, MatchR); 1098 MatchL = MatchR = nullptr; 1099 EXPECT_TRUE(m_NUWShl(m_Value(MatchL), m_Value(MatchR)).match( 1100 IRB.CreateShl(L, R, "", /* NUW */ true, /* NSW */ false))); 1101 EXPECT_EQ(L, MatchL); 1102 EXPECT_EQ(R, MatchR); 1103 1104 EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateAdd(L, R))); 1105 EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); 1106 EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateNSWSub(L, R))); 1107 EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateSub(L, R))); 1108 EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateNUWSub(L, R))); 1109 EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); 1110 EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateMul(L, R))); 1111 EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateNUWMul(L, R))); 1112 EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); 1113 EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match(IRB.CreateShl(L, R))); 1114 EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match( 1115 IRB.CreateShl(L, R, "", /* NUW */ true, /* NSW */ false))); 1116 EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); 1117 1118 EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateAdd(L, R))); 1119 EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); 1120 EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateNUWSub(L, R))); 1121 EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateSub(L, R))); 1122 EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateNSWSub(L, R))); 1123 EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); 1124 EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateMul(L, R))); 1125 EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateNSWMul(L, R))); 1126 EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); 1127 EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match(IRB.CreateShl(L, R))); 1128 EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match( 1129 IRB.CreateShl(L, R, "", /* NUW */ false, /* NSW */ true))); 1130 EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); 1131 } 1132 1133 TEST_F(PatternMatchTest, LoadStoreOps) { 1134 // Create this load/store sequence: 1135 // 1136 // %p = alloca i32* 1137 // %0 = load i32*, i32** %p 1138 // store i32 42, i32* %0 1139 1140 Value *Alloca = IRB.CreateAlloca(IRB.getInt32Ty()); 1141 Value *LoadInst = IRB.CreateLoad(IRB.getInt32Ty(), Alloca); 1142 Value *FourtyTwo = IRB.getInt32(42); 1143 Value *StoreInst = IRB.CreateStore(FourtyTwo, Alloca); 1144 Value *MatchLoad, *MatchStoreVal, *MatchStorePointer; 1145 1146 EXPECT_TRUE(m_Load(m_Value(MatchLoad)).match(LoadInst)); 1147 EXPECT_EQ(Alloca, MatchLoad); 1148 1149 EXPECT_TRUE(m_Load(m_Specific(Alloca)).match(LoadInst)); 1150 1151 EXPECT_FALSE(m_Load(m_Value(MatchLoad)).match(Alloca)); 1152 1153 EXPECT_TRUE(m_Store(m_Value(MatchStoreVal), m_Value(MatchStorePointer)) 1154 .match(StoreInst)); 1155 EXPECT_EQ(FourtyTwo, MatchStoreVal); 1156 EXPECT_EQ(Alloca, MatchStorePointer); 1157 1158 EXPECT_FALSE(m_Store(m_Value(MatchStoreVal), m_Value(MatchStorePointer)) 1159 .match(Alloca)); 1160 1161 EXPECT_TRUE(m_Store(m_SpecificInt(42), m_Specific(Alloca)) 1162 .match(StoreInst)); 1163 EXPECT_FALSE(m_Store(m_SpecificInt(42), m_Specific(FourtyTwo)) 1164 .match(StoreInst)); 1165 EXPECT_FALSE(m_Store(m_SpecificInt(43), m_Specific(Alloca)) 1166 .match(StoreInst)); 1167 } 1168 1169 TEST_F(PatternMatchTest, VectorOps) { 1170 // Build up small tree of vector operations 1171 // 1172 // Val = 0 + 1 1173 // Val2 = Val + 3 1174 // VI1 = insertelement <2 x i8> undef, i8 1, i32 0 = <1, undef> 1175 // VI2 = insertelement <2 x i8> %VI1, i8 %Val2, i8 %Val = <1, 4> 1176 // VI3 = insertelement <2 x i8> %VI1, i8 %Val2, i32 1 = <1, 4> 1177 // VI4 = insertelement <2 x i8> %VI1, i8 2, i8 %Val = <1, 2> 1178 // 1179 // SI1 = shufflevector <2 x i8> %VI1, <2 x i8> undef, zeroinitializer 1180 // SI2 = shufflevector <2 x i8> %VI3, <2 x i8> %VI4, <2 x i8> <i8 0, i8 2> 1181 // SI3 = shufflevector <2 x i8> %VI3, <2 x i8> undef, zeroinitializer 1182 // SI4 = shufflevector <2 x i8> %VI4, <2 x i8> undef, zeroinitializer 1183 // 1184 // SP1 = VectorSplat(2, i8 2) 1185 // SP2 = VectorSplat(2, i8 %Val) 1186 Type *VecTy = FixedVectorType::get(IRB.getInt8Ty(), 2); 1187 Type *i32 = IRB.getInt32Ty(); 1188 Type *i32VecTy = FixedVectorType::get(i32, 2); 1189 1190 Value *Val = IRB.CreateAdd(IRB.getInt8(0), IRB.getInt8(1)); 1191 Value *Val2 = IRB.CreateAdd(Val, IRB.getInt8(3)); 1192 1193 SmallVector<Constant *, 2> VecElemIdxs; 1194 VecElemIdxs.push_back(ConstantInt::get(i32, 0)); 1195 VecElemIdxs.push_back(ConstantInt::get(i32, 2)); 1196 auto *IdxVec = ConstantVector::get(VecElemIdxs); 1197 1198 Value *VI1 = IRB.CreateInsertElement(VecTy, IRB.getInt8(1), (uint64_t)0); 1199 Value *VI2 = IRB.CreateInsertElement(VI1, Val2, Val); 1200 Value *VI3 = IRB.CreateInsertElement(VI1, Val2, (uint64_t)1); 1201 Value *VI4 = IRB.CreateInsertElement(VI1, IRB.getInt8(2), Val); 1202 1203 Value *EX1 = IRB.CreateExtractElement(VI4, Val); 1204 Value *EX2 = IRB.CreateExtractElement(VI4, (uint64_t)0); 1205 Value *EX3 = IRB.CreateExtractElement(IdxVec, (uint64_t)1); 1206 1207 Constant *Zero = ConstantAggregateZero::get(i32VecTy); 1208 SmallVector<int, 16> ZeroMask; 1209 ShuffleVectorInst::getShuffleMask(Zero, ZeroMask); 1210 1211 Value *SI1 = IRB.CreateShuffleVector(VI1, ZeroMask); 1212 Value *SI2 = IRB.CreateShuffleVector(VI3, VI4, IdxVec); 1213 Value *SI3 = IRB.CreateShuffleVector(VI3, ZeroMask); 1214 Value *SI4 = IRB.CreateShuffleVector(VI4, ZeroMask); 1215 1216 Value *SP1 = IRB.CreateVectorSplat(2, IRB.getInt8(2)); 1217 Value *SP2 = IRB.CreateVectorSplat(2, Val); 1218 1219 Value *A = nullptr, *B = nullptr, *C = nullptr; 1220 1221 // Test matching insertelement 1222 EXPECT_TRUE(match(VI1, m_InsertElt(m_Value(), m_Value(), m_Value()))); 1223 EXPECT_TRUE( 1224 match(VI1, m_InsertElt(m_Undef(), m_ConstantInt(), m_ConstantInt()))); 1225 EXPECT_TRUE( 1226 match(VI1, m_InsertElt(m_Undef(), m_ConstantInt(), m_Zero()))); 1227 EXPECT_TRUE( 1228 match(VI1, m_InsertElt(m_Undef(), m_SpecificInt(1), m_Zero()))); 1229 EXPECT_TRUE(match(VI2, m_InsertElt(m_Value(), m_Value(), m_Value()))); 1230 EXPECT_FALSE( 1231 match(VI2, m_InsertElt(m_Value(), m_Value(), m_ConstantInt()))); 1232 EXPECT_FALSE( 1233 match(VI2, m_InsertElt(m_Value(), m_ConstantInt(), m_Value()))); 1234 EXPECT_FALSE(match(VI2, m_InsertElt(m_Constant(), m_Value(), m_Value()))); 1235 EXPECT_TRUE(match(VI3, m_InsertElt(m_Value(A), m_Value(B), m_Value(C)))); 1236 EXPECT_TRUE(A == VI1); 1237 EXPECT_TRUE(B == Val2); 1238 EXPECT_TRUE(isa<ConstantInt>(C)); 1239 A = B = C = nullptr; // reset 1240 1241 // Test matching extractelement 1242 EXPECT_TRUE(match(EX1, m_ExtractElt(m_Value(A), m_Value(B)))); 1243 EXPECT_TRUE(A == VI4); 1244 EXPECT_TRUE(B == Val); 1245 A = B = C = nullptr; // reset 1246 EXPECT_FALSE(match(EX1, m_ExtractElt(m_Value(), m_ConstantInt()))); 1247 EXPECT_TRUE(match(EX2, m_ExtractElt(m_Value(), m_ConstantInt()))); 1248 EXPECT_TRUE(match(EX3, m_ExtractElt(m_Constant(), m_ConstantInt()))); 1249 1250 // Test matching shufflevector 1251 ArrayRef<int> Mask; 1252 EXPECT_TRUE(match(SI1, m_Shuffle(m_Value(), m_Undef(), m_ZeroMask()))); 1253 EXPECT_TRUE(match(SI2, m_Shuffle(m_Value(A), m_Value(B), m_Mask(Mask)))); 1254 EXPECT_TRUE(A == VI3); 1255 EXPECT_TRUE(B == VI4); 1256 A = B = C = nullptr; // reset 1257 1258 // Test matching the vector splat pattern 1259 EXPECT_TRUE(match( 1260 SI1, 1261 m_Shuffle(m_InsertElt(m_Undef(), m_SpecificInt(1), m_Zero()), 1262 m_Undef(), m_ZeroMask()))); 1263 EXPECT_FALSE(match( 1264 SI3, m_Shuffle(m_InsertElt(m_Undef(), m_Value(), m_Zero()), 1265 m_Undef(), m_ZeroMask()))); 1266 EXPECT_FALSE(match( 1267 SI4, m_Shuffle(m_InsertElt(m_Undef(), m_Value(), m_Zero()), 1268 m_Undef(), m_ZeroMask()))); 1269 EXPECT_TRUE(match( 1270 SP1, 1271 m_Shuffle(m_InsertElt(m_Undef(), m_SpecificInt(2), m_Zero()), 1272 m_Undef(), m_ZeroMask()))); 1273 EXPECT_TRUE(match( 1274 SP2, m_Shuffle(m_InsertElt(m_Undef(), m_Value(A), m_Zero()), 1275 m_Undef(), m_ZeroMask()))); 1276 EXPECT_TRUE(A == Val); 1277 } 1278 1279 TEST_F(PatternMatchTest, UndefPoisonMix) { 1280 Type *ScalarTy = IRB.getInt8Ty(); 1281 ArrayType *ArrTy = ArrayType::get(ScalarTy, 2); 1282 StructType *StTy = StructType::get(ScalarTy, ScalarTy); 1283 StructType *StTy2 = StructType::get(ScalarTy, StTy); 1284 StructType *StTy3 = StructType::get(StTy, ScalarTy); 1285 Constant *Zero = ConstantInt::getNullValue(ScalarTy); 1286 UndefValue *U = UndefValue::get(ScalarTy); 1287 UndefValue *P = PoisonValue::get(ScalarTy); 1288 1289 EXPECT_TRUE(match(ConstantVector::get({U, P}), m_Undef())); 1290 EXPECT_TRUE(match(ConstantVector::get({P, U}), m_Undef())); 1291 1292 EXPECT_TRUE(match(ConstantArray::get(ArrTy, {U, P}), m_Undef())); 1293 EXPECT_TRUE(match(ConstantArray::get(ArrTy, {P, U}), m_Undef())); 1294 1295 auto *UP = ConstantStruct::get(StTy, {U, P}); 1296 EXPECT_TRUE(match(ConstantStruct::get(StTy2, {U, UP}), m_Undef())); 1297 EXPECT_TRUE(match(ConstantStruct::get(StTy2, {P, UP}), m_Undef())); 1298 EXPECT_TRUE(match(ConstantStruct::get(StTy3, {UP, U}), m_Undef())); 1299 EXPECT_TRUE(match(ConstantStruct::get(StTy3, {UP, P}), m_Undef())); 1300 1301 EXPECT_FALSE(match(ConstantStruct::get(StTy, {U, Zero}), m_Undef())); 1302 EXPECT_FALSE(match(ConstantStruct::get(StTy, {Zero, U}), m_Undef())); 1303 EXPECT_FALSE(match(ConstantStruct::get(StTy, {P, Zero}), m_Undef())); 1304 EXPECT_FALSE(match(ConstantStruct::get(StTy, {Zero, P}), m_Undef())); 1305 1306 EXPECT_FALSE(match(ConstantStruct::get(StTy2, {Zero, UP}), m_Undef())); 1307 EXPECT_FALSE(match(ConstantStruct::get(StTy3, {UP, Zero}), m_Undef())); 1308 } 1309 1310 TEST_F(PatternMatchTest, VectorUndefInt) { 1311 Type *ScalarTy = IRB.getInt8Ty(); 1312 Type *VectorTy = FixedVectorType::get(ScalarTy, 4); 1313 Constant *ScalarUndef = UndefValue::get(ScalarTy); 1314 Constant *VectorUndef = UndefValue::get(VectorTy); 1315 Constant *ScalarPoison = PoisonValue::get(ScalarTy); 1316 Constant *VectorPoison = PoisonValue::get(VectorTy); 1317 Constant *ScalarZero = Constant::getNullValue(ScalarTy); 1318 Constant *VectorZero = Constant::getNullValue(VectorTy); 1319 1320 SmallVector<Constant *, 4> Elems; 1321 Elems.push_back(ScalarUndef); 1322 Elems.push_back(ScalarZero); 1323 Elems.push_back(ScalarUndef); 1324 Elems.push_back(ScalarZero); 1325 Constant *VectorZeroUndef = ConstantVector::get(Elems); 1326 1327 SmallVector<Constant *, 4> Elems2; 1328 Elems2.push_back(ScalarPoison); 1329 Elems2.push_back(ScalarZero); 1330 Elems2.push_back(ScalarPoison); 1331 Elems2.push_back(ScalarZero); 1332 Constant *VectorZeroPoison = ConstantVector::get(Elems2); 1333 1334 EXPECT_TRUE(match(ScalarUndef, m_Undef())); 1335 EXPECT_TRUE(match(ScalarPoison, m_Undef())); 1336 EXPECT_TRUE(match(VectorUndef, m_Undef())); 1337 EXPECT_TRUE(match(VectorPoison, m_Undef())); 1338 EXPECT_FALSE(match(ScalarZero, m_Undef())); 1339 EXPECT_FALSE(match(VectorZero, m_Undef())); 1340 EXPECT_FALSE(match(VectorZeroUndef, m_Undef())); 1341 EXPECT_FALSE(match(VectorZeroPoison, m_Undef())); 1342 1343 EXPECT_FALSE(match(ScalarUndef, m_Zero())); 1344 EXPECT_FALSE(match(ScalarPoison, m_Zero())); 1345 EXPECT_FALSE(match(VectorUndef, m_Zero())); 1346 EXPECT_FALSE(match(VectorPoison, m_Zero())); 1347 EXPECT_FALSE(match(VectorZeroUndef, m_Zero())); 1348 EXPECT_TRUE(match(ScalarZero, m_Zero())); 1349 EXPECT_TRUE(match(VectorZero, m_Zero())); 1350 EXPECT_TRUE(match(VectorZeroPoison, m_Zero())); 1351 1352 const APInt *C; 1353 // Regardless of whether poison is allowed, 1354 // a fully undef/poison constant does not match. 1355 EXPECT_FALSE(match(ScalarUndef, m_APInt(C))); 1356 EXPECT_FALSE(match(ScalarUndef, m_APIntForbidPoison(C))); 1357 EXPECT_FALSE(match(ScalarUndef, m_APIntAllowPoison(C))); 1358 EXPECT_FALSE(match(VectorUndef, m_APInt(C))); 1359 EXPECT_FALSE(match(VectorUndef, m_APIntForbidPoison(C))); 1360 EXPECT_FALSE(match(VectorUndef, m_APIntAllowPoison(C))); 1361 EXPECT_FALSE(match(ScalarPoison, m_APInt(C))); 1362 EXPECT_FALSE(match(ScalarPoison, m_APIntForbidPoison(C))); 1363 EXPECT_FALSE(match(ScalarPoison, m_APIntAllowPoison(C))); 1364 EXPECT_FALSE(match(VectorPoison, m_APInt(C))); 1365 EXPECT_FALSE(match(VectorPoison, m_APIntForbidPoison(C))); 1366 EXPECT_FALSE(match(VectorPoison, m_APIntAllowPoison(C))); 1367 1368 // We can always match simple constants and simple splats. 1369 C = nullptr; 1370 EXPECT_TRUE(match(ScalarZero, m_APInt(C))); 1371 EXPECT_TRUE(C->isZero()); 1372 C = nullptr; 1373 EXPECT_TRUE(match(ScalarZero, m_APIntForbidPoison(C))); 1374 EXPECT_TRUE(C->isZero()); 1375 C = nullptr; 1376 EXPECT_TRUE(match(ScalarZero, m_APIntAllowPoison(C))); 1377 EXPECT_TRUE(C->isZero()); 1378 C = nullptr; 1379 EXPECT_TRUE(match(VectorZero, m_APInt(C))); 1380 EXPECT_TRUE(C->isZero()); 1381 C = nullptr; 1382 EXPECT_TRUE(match(VectorZero, m_APIntForbidPoison(C))); 1383 EXPECT_TRUE(C->isZero()); 1384 C = nullptr; 1385 EXPECT_TRUE(match(VectorZero, m_APIntAllowPoison(C))); 1386 EXPECT_TRUE(C->isZero()); 1387 1388 // Splats with undef are never allowed. 1389 // Whether splats with poison can be matched depends on the matcher. 1390 EXPECT_FALSE(match(VectorZeroUndef, m_APInt(C))); 1391 EXPECT_FALSE(match(VectorZeroUndef, m_APIntForbidPoison(C))); 1392 EXPECT_FALSE(match(VectorZeroUndef, m_APIntAllowPoison(C))); 1393 1394 EXPECT_FALSE(match(VectorZeroPoison, m_APInt(C))); 1395 EXPECT_FALSE(match(VectorZeroPoison, m_APIntForbidPoison(C))); 1396 C = nullptr; 1397 EXPECT_TRUE(match(VectorZeroPoison, m_APIntAllowPoison(C))); 1398 EXPECT_TRUE(C->isZero()); 1399 } 1400 1401 TEST_F(PatternMatchTest, VectorUndefFloat) { 1402 Type *ScalarTy = IRB.getFloatTy(); 1403 Type *VectorTy = FixedVectorType::get(ScalarTy, 4); 1404 Constant *ScalarUndef = UndefValue::get(ScalarTy); 1405 Constant *VectorUndef = UndefValue::get(VectorTy); 1406 Constant *ScalarPoison = PoisonValue::get(ScalarTy); 1407 Constant *VectorPoison = PoisonValue::get(VectorTy); 1408 Constant *ScalarZero = Constant::getNullValue(ScalarTy); 1409 Constant *VectorZero = Constant::getNullValue(VectorTy); 1410 Constant *ScalarPosInf = ConstantFP::getInfinity(ScalarTy, false); 1411 Constant *ScalarNegInf = ConstantFP::getInfinity(ScalarTy, true); 1412 Constant *ScalarNaN = ConstantFP::getNaN(ScalarTy, true); 1413 1414 Constant *VectorZeroUndef = 1415 ConstantVector::get({ScalarUndef, ScalarZero, ScalarUndef, ScalarZero}); 1416 1417 Constant *VectorZeroPoison = 1418 ConstantVector::get({ScalarPoison, ScalarZero, ScalarPoison, ScalarZero}); 1419 1420 Constant *VectorInfUndef = ConstantVector::get( 1421 {ScalarPosInf, ScalarNegInf, ScalarUndef, ScalarPosInf}); 1422 1423 Constant *VectorInfPoison = ConstantVector::get( 1424 {ScalarPosInf, ScalarNegInf, ScalarPoison, ScalarPosInf}); 1425 1426 Constant *VectorNaNUndef = 1427 ConstantVector::get({ScalarUndef, ScalarNaN, ScalarNaN, ScalarNaN}); 1428 1429 Constant *VectorNaNPoison = 1430 ConstantVector::get({ScalarPoison, ScalarNaN, ScalarNaN, ScalarNaN}); 1431 1432 EXPECT_TRUE(match(ScalarUndef, m_Undef())); 1433 EXPECT_TRUE(match(VectorUndef, m_Undef())); 1434 EXPECT_TRUE(match(ScalarPoison, m_Undef())); 1435 EXPECT_TRUE(match(VectorPoison, m_Undef())); 1436 EXPECT_FALSE(match(ScalarZero, m_Undef())); 1437 EXPECT_FALSE(match(VectorZero, m_Undef())); 1438 EXPECT_FALSE(match(VectorZeroUndef, m_Undef())); 1439 EXPECT_FALSE(match(VectorInfUndef, m_Undef())); 1440 EXPECT_FALSE(match(VectorNaNUndef, m_Undef())); 1441 EXPECT_FALSE(match(VectorZeroPoison, m_Undef())); 1442 EXPECT_FALSE(match(VectorInfPoison, m_Undef())); 1443 EXPECT_FALSE(match(VectorNaNPoison, m_Undef())); 1444 1445 EXPECT_FALSE(match(ScalarUndef, m_AnyZeroFP())); 1446 EXPECT_FALSE(match(VectorUndef, m_AnyZeroFP())); 1447 EXPECT_FALSE(match(ScalarPoison, m_AnyZeroFP())); 1448 EXPECT_FALSE(match(VectorPoison, m_AnyZeroFP())); 1449 EXPECT_TRUE(match(ScalarZero, m_AnyZeroFP())); 1450 EXPECT_TRUE(match(VectorZero, m_AnyZeroFP())); 1451 EXPECT_FALSE(match(VectorZeroUndef, m_AnyZeroFP())); 1452 EXPECT_FALSE(match(VectorInfUndef, m_AnyZeroFP())); 1453 EXPECT_FALSE(match(VectorNaNUndef, m_AnyZeroFP())); 1454 EXPECT_TRUE(match(VectorZeroPoison, m_AnyZeroFP())); 1455 EXPECT_FALSE(match(VectorInfPoison, m_AnyZeroFP())); 1456 EXPECT_FALSE(match(VectorNaNPoison, m_AnyZeroFP())); 1457 1458 EXPECT_FALSE(match(ScalarUndef, m_NaN())); 1459 EXPECT_FALSE(match(VectorUndef, m_NaN())); 1460 EXPECT_FALSE(match(VectorZeroUndef, m_NaN())); 1461 EXPECT_FALSE(match(ScalarPoison, m_NaN())); 1462 EXPECT_FALSE(match(VectorPoison, m_NaN())); 1463 EXPECT_FALSE(match(VectorZeroPoison, m_NaN())); 1464 EXPECT_FALSE(match(ScalarPosInf, m_NaN())); 1465 EXPECT_FALSE(match(ScalarNegInf, m_NaN())); 1466 EXPECT_TRUE(match(ScalarNaN, m_NaN())); 1467 EXPECT_FALSE(match(VectorInfUndef, m_NaN())); 1468 EXPECT_FALSE(match(VectorNaNUndef, m_NaN())); 1469 EXPECT_FALSE(match(VectorInfPoison, m_NaN())); 1470 EXPECT_TRUE(match(VectorNaNPoison, m_NaN())); 1471 1472 EXPECT_FALSE(match(ScalarUndef, m_NonNaN())); 1473 EXPECT_FALSE(match(VectorUndef, m_NonNaN())); 1474 EXPECT_FALSE(match(VectorZeroUndef, m_NonNaN())); 1475 EXPECT_FALSE(match(ScalarPoison, m_NonNaN())); 1476 EXPECT_FALSE(match(VectorPoison, m_NonNaN())); 1477 EXPECT_TRUE(match(VectorZeroPoison, m_NonNaN())); 1478 EXPECT_TRUE(match(ScalarPosInf, m_NonNaN())); 1479 EXPECT_TRUE(match(ScalarNegInf, m_NonNaN())); 1480 EXPECT_FALSE(match(ScalarNaN, m_NonNaN())); 1481 EXPECT_FALSE(match(VectorInfUndef, m_NonNaN())); 1482 EXPECT_FALSE(match(VectorNaNUndef, m_NonNaN())); 1483 EXPECT_TRUE(match(VectorInfPoison, m_NonNaN())); 1484 EXPECT_FALSE(match(VectorNaNPoison, m_NonNaN())); 1485 1486 EXPECT_FALSE(match(ScalarUndef, m_Inf())); 1487 EXPECT_FALSE(match(VectorUndef, m_Inf())); 1488 EXPECT_FALSE(match(VectorZeroUndef, m_Inf())); 1489 EXPECT_FALSE(match(ScalarPoison, m_Inf())); 1490 EXPECT_FALSE(match(VectorPoison, m_Inf())); 1491 EXPECT_FALSE(match(VectorZeroPoison, m_Inf())); 1492 EXPECT_TRUE(match(ScalarPosInf, m_Inf())); 1493 EXPECT_TRUE(match(ScalarNegInf, m_Inf())); 1494 EXPECT_FALSE(match(ScalarNaN, m_Inf())); 1495 EXPECT_FALSE(match(VectorInfUndef, m_Inf())); 1496 EXPECT_FALSE(match(VectorNaNUndef, m_Inf())); 1497 EXPECT_TRUE(match(VectorInfPoison, m_Inf())); 1498 EXPECT_FALSE(match(VectorNaNPoison, m_Inf())); 1499 1500 EXPECT_FALSE(match(ScalarUndef, m_NonInf())); 1501 EXPECT_FALSE(match(VectorUndef, m_NonInf())); 1502 EXPECT_FALSE(match(VectorZeroUndef, m_NonInf())); 1503 EXPECT_FALSE(match(ScalarPoison, m_NonInf())); 1504 EXPECT_FALSE(match(VectorPoison, m_NonInf())); 1505 EXPECT_TRUE(match(VectorZeroPoison, m_NonInf())); 1506 EXPECT_FALSE(match(ScalarPosInf, m_NonInf())); 1507 EXPECT_FALSE(match(ScalarNegInf, m_NonInf())); 1508 EXPECT_TRUE(match(ScalarNaN, m_NonInf())); 1509 EXPECT_FALSE(match(VectorInfUndef, m_NonInf())); 1510 EXPECT_FALSE(match(VectorNaNUndef, m_NonInf())); 1511 EXPECT_FALSE(match(VectorInfPoison, m_NonInf())); 1512 EXPECT_TRUE(match(VectorNaNPoison, m_NonInf())); 1513 1514 EXPECT_FALSE(match(ScalarUndef, m_Finite())); 1515 EXPECT_FALSE(match(VectorUndef, m_Finite())); 1516 EXPECT_FALSE(match(VectorZeroUndef, m_Finite())); 1517 EXPECT_FALSE(match(ScalarPoison, m_Finite())); 1518 EXPECT_FALSE(match(VectorPoison, m_Finite())); 1519 EXPECT_TRUE(match(VectorZeroPoison, m_Finite())); 1520 EXPECT_FALSE(match(ScalarPosInf, m_Finite())); 1521 EXPECT_FALSE(match(ScalarNegInf, m_Finite())); 1522 EXPECT_FALSE(match(ScalarNaN, m_Finite())); 1523 EXPECT_FALSE(match(VectorInfUndef, m_Finite())); 1524 EXPECT_FALSE(match(VectorNaNUndef, m_Finite())); 1525 EXPECT_FALSE(match(VectorInfPoison, m_Finite())); 1526 EXPECT_FALSE(match(VectorNaNPoison, m_Finite())); 1527 1528 auto CheckTrue = [](const APFloat &) { return true; }; 1529 EXPECT_FALSE(match(VectorZeroUndef, m_CheckedFp(CheckTrue))); 1530 EXPECT_TRUE(match(VectorZeroPoison, m_CheckedFp(CheckTrue))); 1531 EXPECT_TRUE(match(ScalarPosInf, m_CheckedFp(CheckTrue))); 1532 EXPECT_TRUE(match(ScalarNegInf, m_CheckedFp(CheckTrue))); 1533 EXPECT_TRUE(match(ScalarNaN, m_CheckedFp(CheckTrue))); 1534 EXPECT_FALSE(match(VectorInfUndef, m_CheckedFp(CheckTrue))); 1535 EXPECT_TRUE(match(VectorInfPoison, m_CheckedFp(CheckTrue))); 1536 EXPECT_FALSE(match(VectorNaNUndef, m_CheckedFp(CheckTrue))); 1537 EXPECT_TRUE(match(VectorNaNPoison, m_CheckedFp(CheckTrue))); 1538 1539 auto CheckFalse = [](const APFloat &) { return false; }; 1540 EXPECT_FALSE(match(VectorZeroUndef, m_CheckedFp(CheckFalse))); 1541 EXPECT_FALSE(match(VectorZeroPoison, m_CheckedFp(CheckFalse))); 1542 EXPECT_FALSE(match(ScalarPosInf, m_CheckedFp(CheckFalse))); 1543 EXPECT_FALSE(match(ScalarNegInf, m_CheckedFp(CheckFalse))); 1544 EXPECT_FALSE(match(ScalarNaN, m_CheckedFp(CheckFalse))); 1545 EXPECT_FALSE(match(VectorInfUndef, m_CheckedFp(CheckFalse))); 1546 EXPECT_FALSE(match(VectorInfPoison, m_CheckedFp(CheckFalse))); 1547 EXPECT_FALSE(match(VectorNaNUndef, m_CheckedFp(CheckFalse))); 1548 EXPECT_FALSE(match(VectorNaNPoison, m_CheckedFp(CheckFalse))); 1549 1550 auto CheckNonNaN = [](const APFloat &C) { return !C.isNaN(); }; 1551 EXPECT_FALSE(match(VectorZeroUndef, m_CheckedFp(CheckNonNaN))); 1552 EXPECT_TRUE(match(VectorZeroPoison, m_CheckedFp(CheckNonNaN))); 1553 EXPECT_TRUE(match(ScalarPosInf, m_CheckedFp(CheckNonNaN))); 1554 EXPECT_TRUE(match(ScalarNegInf, m_CheckedFp(CheckNonNaN))); 1555 EXPECT_FALSE(match(ScalarNaN, m_CheckedFp(CheckNonNaN))); 1556 EXPECT_FALSE(match(VectorInfUndef, m_CheckedFp(CheckNonNaN))); 1557 EXPECT_TRUE(match(VectorInfPoison, m_CheckedFp(CheckNonNaN))); 1558 EXPECT_FALSE(match(VectorNaNUndef, m_CheckedFp(CheckNonNaN))); 1559 EXPECT_FALSE(match(VectorNaNPoison, m_CheckedFp(CheckNonNaN))); 1560 1561 const APFloat *C; 1562 // Regardless of whether poison is allowed, 1563 // a fully undef/poison constant does not match. 1564 EXPECT_FALSE(match(ScalarUndef, m_APFloat(C))); 1565 EXPECT_FALSE(match(ScalarUndef, m_APFloatForbidPoison(C))); 1566 EXPECT_FALSE(match(ScalarUndef, m_APFloatAllowPoison(C))); 1567 EXPECT_FALSE(match(ScalarUndef, m_CheckedFp(C, CheckTrue))); 1568 EXPECT_FALSE(match(VectorUndef, m_APFloat(C))); 1569 EXPECT_FALSE(match(VectorUndef, m_APFloatForbidPoison(C))); 1570 EXPECT_FALSE(match(VectorUndef, m_APFloatAllowPoison(C))); 1571 EXPECT_FALSE(match(VectorUndef, m_CheckedFp(C, CheckTrue))); 1572 EXPECT_FALSE(match(ScalarPoison, m_APFloat(C))); 1573 EXPECT_FALSE(match(ScalarPoison, m_APFloatForbidPoison(C))); 1574 EXPECT_FALSE(match(ScalarPoison, m_APFloatAllowPoison(C))); 1575 EXPECT_FALSE(match(ScalarPoison, m_CheckedFp(C, CheckTrue))); 1576 EXPECT_FALSE(match(VectorPoison, m_APFloat(C))); 1577 EXPECT_FALSE(match(VectorPoison, m_APFloatForbidPoison(C))); 1578 EXPECT_FALSE(match(VectorPoison, m_APFloatAllowPoison(C))); 1579 EXPECT_FALSE(match(VectorPoison, m_CheckedFp(C, CheckTrue))); 1580 1581 // We can always match simple constants and simple splats. 1582 C = nullptr; 1583 EXPECT_TRUE(match(ScalarZero, m_APFloat(C))); 1584 EXPECT_TRUE(C->isZero()); 1585 C = nullptr; 1586 EXPECT_TRUE(match(ScalarZero, m_APFloatForbidPoison(C))); 1587 EXPECT_TRUE(C->isZero()); 1588 C = nullptr; 1589 EXPECT_TRUE(match(ScalarZero, m_APFloatAllowPoison(C))); 1590 EXPECT_TRUE(C->isZero()); 1591 C = nullptr; 1592 EXPECT_TRUE(match(VectorZero, m_APFloat(C))); 1593 EXPECT_TRUE(C->isZero()); 1594 C = nullptr; 1595 EXPECT_TRUE(match(VectorZero, m_APFloatForbidPoison(C))); 1596 EXPECT_TRUE(C->isZero()); 1597 C = nullptr; 1598 EXPECT_TRUE(match(VectorZero, m_APFloatAllowPoison(C))); 1599 EXPECT_TRUE(C->isZero()); 1600 C = nullptr; 1601 EXPECT_TRUE(match(VectorZero, m_CheckedFp(C, CheckTrue))); 1602 EXPECT_TRUE(C->isZero()); 1603 C = nullptr; 1604 EXPECT_TRUE(match(VectorZero, m_CheckedFp(C, CheckNonNaN))); 1605 EXPECT_TRUE(C->isZero()); 1606 1607 // Splats with undef are never allowed. 1608 // Whether splats with poison can be matched depends on the matcher. 1609 EXPECT_FALSE(match(VectorZeroUndef, m_APFloat(C))); 1610 EXPECT_FALSE(match(VectorZeroUndef, m_APFloatForbidPoison(C))); 1611 EXPECT_FALSE(match(VectorZeroUndef, m_APFloatAllowPoison(C))); 1612 EXPECT_FALSE(match(VectorZeroUndef, m_Finite(C))); 1613 1614 EXPECT_FALSE(match(VectorZeroPoison, m_APFloat(C))); 1615 EXPECT_FALSE(match(VectorZeroPoison, m_APFloatForbidPoison(C))); 1616 C = nullptr; 1617 EXPECT_TRUE(match(VectorZeroPoison, m_APFloatAllowPoison(C))); 1618 EXPECT_TRUE(C->isZero()); 1619 C = nullptr; 1620 EXPECT_TRUE(match(VectorZeroPoison, m_Finite(C))); 1621 EXPECT_TRUE(C->isZero()); 1622 EXPECT_FALSE(match(VectorZeroPoison, m_APFloat(C))); 1623 EXPECT_FALSE(match(VectorZeroPoison, m_APFloatForbidPoison(C))); 1624 C = nullptr; 1625 EXPECT_TRUE(match(VectorZeroPoison, m_APFloatAllowPoison(C))); 1626 EXPECT_TRUE(C->isZero()); 1627 C = nullptr; 1628 EXPECT_TRUE(match(VectorZeroPoison, m_Finite(C))); 1629 EXPECT_TRUE(C->isZero()); 1630 C = nullptr; 1631 EXPECT_TRUE(match(VectorZeroPoison, m_CheckedFp(C, CheckTrue))); 1632 EXPECT_TRUE(C->isZero()); 1633 C = nullptr; 1634 EXPECT_TRUE(match(VectorZeroPoison, m_CheckedFp(C, CheckNonNaN))); 1635 EXPECT_TRUE(C->isZero()); 1636 } 1637 1638 TEST_F(PatternMatchTest, FloatingPointFNeg) { 1639 Type *FltTy = IRB.getFloatTy(); 1640 Value *One = ConstantFP::get(FltTy, 1.0); 1641 Value *Z = ConstantFP::get(FltTy, 0.0); 1642 Value *NZ = ConstantFP::get(FltTy, -0.0); 1643 Value *V = IRB.CreateFNeg(One); 1644 Value *V1 = IRB.CreateFSub(NZ, One); 1645 Value *V2 = IRB.CreateFSub(Z, One); 1646 Value *V3 = IRB.CreateFAdd(NZ, One); 1647 Value *Match; 1648 1649 // Test FNeg(1.0) 1650 EXPECT_TRUE(match(V, m_FNeg(m_Value(Match)))); 1651 EXPECT_EQ(One, Match); 1652 1653 // Test FSub(-0.0, 1.0) 1654 EXPECT_TRUE(match(V1, m_FNeg(m_Value(Match)))); 1655 EXPECT_EQ(One, Match); 1656 1657 // Test FSub(0.0, 1.0) 1658 EXPECT_FALSE(match(V2, m_FNeg(m_Value(Match)))); 1659 cast<Instruction>(V2)->setHasNoSignedZeros(true); 1660 EXPECT_TRUE(match(V2, m_FNeg(m_Value(Match)))); 1661 EXPECT_EQ(One, Match); 1662 1663 // Test FAdd(-0.0, 1.0) 1664 EXPECT_FALSE(match(V3, m_FNeg(m_Value(Match)))); 1665 } 1666 1667 TEST_F(PatternMatchTest, CondBranchTest) { 1668 BasicBlock *TrueBB = BasicBlock::Create(Ctx, "TrueBB", F); 1669 BasicBlock *FalseBB = BasicBlock::Create(Ctx, "FalseBB", F); 1670 Value *Br1 = IRB.CreateCondBr(IRB.getTrue(), TrueBB, FalseBB); 1671 1672 EXPECT_TRUE(match(Br1, m_Br(m_Value(), m_BasicBlock(), m_BasicBlock()))); 1673 1674 BasicBlock *A, *B; 1675 EXPECT_TRUE(match(Br1, m_Br(m_Value(), m_BasicBlock(A), m_BasicBlock(B)))); 1676 EXPECT_EQ(TrueBB, A); 1677 EXPECT_EQ(FalseBB, B); 1678 1679 EXPECT_FALSE( 1680 match(Br1, m_Br(m_Value(), m_SpecificBB(FalseBB), m_BasicBlock()))); 1681 EXPECT_FALSE( 1682 match(Br1, m_Br(m_Value(), m_BasicBlock(), m_SpecificBB(TrueBB)))); 1683 EXPECT_FALSE( 1684 match(Br1, m_Br(m_Value(), m_SpecificBB(FalseBB), m_BasicBlock(TrueBB)))); 1685 EXPECT_TRUE( 1686 match(Br1, m_Br(m_Value(), m_SpecificBB(TrueBB), m_BasicBlock(FalseBB)))); 1687 1688 // Check we can use m_Deferred with branches. 1689 EXPECT_FALSE(match(Br1, m_Br(m_Value(), m_BasicBlock(A), m_Deferred(A)))); 1690 Value *Br2 = IRB.CreateCondBr(IRB.getTrue(), TrueBB, TrueBB); 1691 A = nullptr; 1692 EXPECT_TRUE(match(Br2, m_Br(m_Value(), m_BasicBlock(A), m_Deferred(A)))); 1693 } 1694 1695 TEST_F(PatternMatchTest, WithOverflowInst) { 1696 Value *Add = IRB.CreateBinaryIntrinsic(Intrinsic::uadd_with_overflow, 1697 IRB.getInt32(0), IRB.getInt32(0)); 1698 Value *Add0 = IRB.CreateExtractValue(Add, 0); 1699 Value *Add1 = IRB.CreateExtractValue(Add, 1); 1700 1701 EXPECT_TRUE(match(Add0, m_ExtractValue<0>(m_Value()))); 1702 EXPECT_FALSE(match(Add0, m_ExtractValue<1>(m_Value()))); 1703 EXPECT_FALSE(match(Add1, m_ExtractValue<0>(m_Value()))); 1704 EXPECT_TRUE(match(Add1, m_ExtractValue<1>(m_Value()))); 1705 EXPECT_FALSE(match(Add, m_ExtractValue<1>(m_Value()))); 1706 EXPECT_FALSE(match(Add, m_ExtractValue<1>(m_Value()))); 1707 1708 WithOverflowInst *WOI; 1709 EXPECT_FALSE(match(Add0, m_WithOverflowInst(WOI))); 1710 EXPECT_FALSE(match(Add1, m_WithOverflowInst(WOI))); 1711 EXPECT_TRUE(match(Add, m_WithOverflowInst(WOI))); 1712 1713 EXPECT_TRUE(match(Add0, m_ExtractValue<0>(m_WithOverflowInst(WOI)))); 1714 EXPECT_EQ(Add, WOI); 1715 EXPECT_TRUE(match(Add1, m_ExtractValue<1>(m_WithOverflowInst(WOI)))); 1716 EXPECT_EQ(Add, WOI); 1717 } 1718 1719 TEST_F(PatternMatchTest, MinMaxIntrinsics) { 1720 Type *Ty = IRB.getInt32Ty(); 1721 Value *L = ConstantInt::get(Ty, 1); 1722 Value *R = ConstantInt::get(Ty, 2); 1723 Value *MatchL, *MatchR; 1724 1725 // Check for intrinsic ID match and capture of operands. 1726 EXPECT_TRUE(m_SMax(m_Value(MatchL), m_Value(MatchR)) 1727 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smax, L, R))); 1728 EXPECT_EQ(L, MatchL); 1729 EXPECT_EQ(R, MatchR); 1730 1731 EXPECT_TRUE(m_SMin(m_Value(MatchL), m_Value(MatchR)) 1732 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smin, L, R))); 1733 EXPECT_EQ(L, MatchL); 1734 EXPECT_EQ(R, MatchR); 1735 1736 EXPECT_TRUE(m_UMax(m_Value(MatchL), m_Value(MatchR)) 1737 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umax, L, R))); 1738 EXPECT_EQ(L, MatchL); 1739 EXPECT_EQ(R, MatchR); 1740 1741 EXPECT_TRUE(m_UMin(m_Value(MatchL), m_Value(MatchR)) 1742 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umin, L, R))); 1743 EXPECT_EQ(L, MatchL); 1744 EXPECT_EQ(R, MatchR); 1745 1746 // Check for intrinsic ID mismatch. 1747 EXPECT_FALSE(m_SMax(m_Value(MatchL), m_Value(MatchR)) 1748 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smin, L, R))); 1749 EXPECT_FALSE(m_SMin(m_Value(MatchL), m_Value(MatchR)) 1750 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umax, L, R))); 1751 EXPECT_FALSE(m_UMax(m_Value(MatchL), m_Value(MatchR)) 1752 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umin, L, R))); 1753 EXPECT_FALSE(m_UMin(m_Value(MatchL), m_Value(MatchR)) 1754 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smax, L, R))); 1755 } 1756 1757 TEST_F(PatternMatchTest, IntrinsicMatcher) { 1758 Value *Name = IRB.CreateAlloca(IRB.getInt8Ty()); 1759 Value *Hash = IRB.getInt64(0); 1760 Value *Num = IRB.getInt32(1); 1761 Value *Index = IRB.getInt32(2); 1762 Value *Step = IRB.getInt64(3); 1763 1764 Value *Ops[] = {Name, Hash, Num, Index, Step}; 1765 Module *M = BB->getParent()->getParent(); 1766 Function *TheFn = 1767 Intrinsic::getDeclaration(M, Intrinsic::instrprof_increment_step); 1768 1769 Value *Intrinsic5 = CallInst::Create(TheFn, Ops, "", BB); 1770 1771 // Match without capturing. 1772 EXPECT_TRUE(match( 1773 Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1774 m_Value(), m_Value(), m_Value(), m_Value(), m_Value()))); 1775 EXPECT_FALSE(match( 1776 Intrinsic5, m_Intrinsic<Intrinsic::memmove>( 1777 m_Value(), m_Value(), m_Value(), m_Value(), m_Value()))); 1778 1779 // Match with capturing. 1780 Value *Arg1 = nullptr; 1781 Value *Arg2 = nullptr; 1782 Value *Arg3 = nullptr; 1783 Value *Arg4 = nullptr; 1784 Value *Arg5 = nullptr; 1785 EXPECT_TRUE( 1786 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1787 m_Value(Arg1), m_Value(Arg2), m_Value(Arg3), 1788 m_Value(Arg4), m_Value(Arg5)))); 1789 EXPECT_EQ(Arg1, Name); 1790 EXPECT_EQ(Arg2, Hash); 1791 EXPECT_EQ(Arg3, Num); 1792 EXPECT_EQ(Arg4, Index); 1793 EXPECT_EQ(Arg5, Step); 1794 1795 // Match specific second argument. 1796 EXPECT_TRUE( 1797 match(Intrinsic5, 1798 m_Intrinsic<Intrinsic::instrprof_increment_step>( 1799 m_Value(), m_SpecificInt(0), m_Value(), m_Value(), m_Value()))); 1800 EXPECT_FALSE( 1801 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1802 m_Value(), m_SpecificInt(10), m_Value(), m_Value(), 1803 m_Value()))); 1804 1805 // Match specific third argument. 1806 EXPECT_TRUE( 1807 match(Intrinsic5, 1808 m_Intrinsic<Intrinsic::instrprof_increment_step>( 1809 m_Value(), m_Value(), m_SpecificInt(1), m_Value(), m_Value()))); 1810 EXPECT_FALSE( 1811 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1812 m_Value(), m_Value(), m_SpecificInt(10), m_Value(), 1813 m_Value()))); 1814 1815 // Match specific fourth argument. 1816 EXPECT_TRUE( 1817 match(Intrinsic5, 1818 m_Intrinsic<Intrinsic::instrprof_increment_step>( 1819 m_Value(), m_Value(), m_Value(), m_SpecificInt(2), m_Value()))); 1820 EXPECT_FALSE( 1821 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1822 m_Value(), m_Value(), m_Value(), m_SpecificInt(10), 1823 m_Value()))); 1824 1825 // Match specific fifth argument. 1826 EXPECT_TRUE( 1827 match(Intrinsic5, 1828 m_Intrinsic<Intrinsic::instrprof_increment_step>( 1829 m_Value(), m_Value(), m_Value(), m_Value(), m_SpecificInt(3)))); 1830 EXPECT_FALSE( 1831 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1832 m_Value(), m_Value(), m_Value(), m_Value(), 1833 m_SpecificInt(10)))); 1834 } 1835 1836 namespace { 1837 1838 struct is_unsigned_zero_pred { 1839 bool isValue(const APInt &C) { return C.isZero(); } 1840 }; 1841 1842 struct is_float_zero_pred { 1843 bool isValue(const APFloat &C) { return C.isZero(); } 1844 }; 1845 1846 template <typename T> struct always_true_pred { 1847 bool isValue(const T &) { return true; } 1848 }; 1849 1850 template <typename T> struct always_false_pred { 1851 bool isValue(const T &) { return false; } 1852 }; 1853 1854 struct is_unsigned_max_pred { 1855 bool isValue(const APInt &C) { return C.isMaxValue(); } 1856 }; 1857 1858 struct is_float_nan_pred { 1859 bool isValue(const APFloat &C) { return C.isNaN(); } 1860 }; 1861 1862 } // namespace 1863 1864 TEST_F(PatternMatchTest, ConstantPredicateType) { 1865 1866 // Scalar integer 1867 APInt U32Max = APInt::getAllOnes(32); 1868 APInt U32Zero = APInt::getZero(32); 1869 APInt U32DeadBeef(32, 0xDEADBEEF); 1870 1871 Type *U32Ty = Type::getInt32Ty(Ctx); 1872 1873 Constant *CU32Max = Constant::getIntegerValue(U32Ty, U32Max); 1874 Constant *CU32Zero = Constant::getIntegerValue(U32Ty, U32Zero); 1875 Constant *CU32DeadBeef = Constant::getIntegerValue(U32Ty, U32DeadBeef); 1876 1877 EXPECT_TRUE(match(CU32Max, cst_pred_ty<is_unsigned_max_pred>())); 1878 EXPECT_FALSE(match(CU32Max, cst_pred_ty<is_unsigned_zero_pred>())); 1879 EXPECT_TRUE(match(CU32Max, cst_pred_ty<always_true_pred<APInt>>())); 1880 EXPECT_FALSE(match(CU32Max, cst_pred_ty<always_false_pred<APInt>>())); 1881 1882 EXPECT_FALSE(match(CU32Zero, cst_pred_ty<is_unsigned_max_pred>())); 1883 EXPECT_TRUE(match(CU32Zero, cst_pred_ty<is_unsigned_zero_pred>())); 1884 EXPECT_TRUE(match(CU32Zero, cst_pred_ty<always_true_pred<APInt>>())); 1885 EXPECT_FALSE(match(CU32Zero, cst_pred_ty<always_false_pred<APInt>>())); 1886 1887 EXPECT_FALSE(match(CU32DeadBeef, cst_pred_ty<is_unsigned_max_pred>())); 1888 EXPECT_FALSE(match(CU32DeadBeef, cst_pred_ty<is_unsigned_zero_pred>())); 1889 EXPECT_TRUE(match(CU32DeadBeef, cst_pred_ty<always_true_pred<APInt>>())); 1890 EXPECT_FALSE(match(CU32DeadBeef, cst_pred_ty<always_false_pred<APInt>>())); 1891 1892 // Scalar float 1893 APFloat F32NaN = APFloat::getNaN(APFloat::IEEEsingle()); 1894 APFloat F32Zero = APFloat::getZero(APFloat::IEEEsingle()); 1895 APFloat F32Pi(3.14f); 1896 1897 Type *F32Ty = Type::getFloatTy(Ctx); 1898 1899 Constant *CF32NaN = ConstantFP::get(F32Ty, F32NaN); 1900 Constant *CF32Zero = ConstantFP::get(F32Ty, F32Zero); 1901 Constant *CF32Pi = ConstantFP::get(F32Ty, F32Pi); 1902 1903 EXPECT_TRUE(match(CF32NaN, cstfp_pred_ty<is_float_nan_pred>())); 1904 EXPECT_FALSE(match(CF32NaN, cstfp_pred_ty<is_float_zero_pred>())); 1905 EXPECT_TRUE(match(CF32NaN, cstfp_pred_ty<always_true_pred<APFloat>>())); 1906 EXPECT_FALSE(match(CF32NaN, cstfp_pred_ty<always_false_pred<APFloat>>())); 1907 1908 EXPECT_FALSE(match(CF32Zero, cstfp_pred_ty<is_float_nan_pred>())); 1909 EXPECT_TRUE(match(CF32Zero, cstfp_pred_ty<is_float_zero_pred>())); 1910 EXPECT_TRUE(match(CF32Zero, cstfp_pred_ty<always_true_pred<APFloat>>())); 1911 EXPECT_FALSE(match(CF32Zero, cstfp_pred_ty<always_false_pred<APFloat>>())); 1912 1913 EXPECT_FALSE(match(CF32Pi, cstfp_pred_ty<is_float_nan_pred>())); 1914 EXPECT_FALSE(match(CF32Pi, cstfp_pred_ty<is_float_zero_pred>())); 1915 EXPECT_TRUE(match(CF32Pi, cstfp_pred_ty<always_true_pred<APFloat>>())); 1916 EXPECT_FALSE(match(CF32Pi, cstfp_pred_ty<always_false_pred<APFloat>>())); 1917 1918 auto FixedEC = ElementCount::getFixed(4); 1919 auto ScalableEC = ElementCount::getScalable(4); 1920 1921 // Vector splat 1922 1923 for (auto EC : {FixedEC, ScalableEC}) { 1924 // integer 1925 1926 Constant *CSplatU32Max = ConstantVector::getSplat(EC, CU32Max); 1927 Constant *CSplatU32Zero = ConstantVector::getSplat(EC, CU32Zero); 1928 Constant *CSplatU32DeadBeef = ConstantVector::getSplat(EC, CU32DeadBeef); 1929 1930 EXPECT_TRUE(match(CSplatU32Max, cst_pred_ty<is_unsigned_max_pred>())); 1931 EXPECT_FALSE(match(CSplatU32Max, cst_pred_ty<is_unsigned_zero_pred>())); 1932 EXPECT_TRUE(match(CSplatU32Max, cst_pred_ty<always_true_pred<APInt>>())); 1933 EXPECT_FALSE(match(CSplatU32Max, cst_pred_ty<always_false_pred<APInt>>())); 1934 1935 EXPECT_FALSE(match(CSplatU32Zero, cst_pred_ty<is_unsigned_max_pred>())); 1936 EXPECT_TRUE(match(CSplatU32Zero, cst_pred_ty<is_unsigned_zero_pred>())); 1937 EXPECT_TRUE(match(CSplatU32Zero, cst_pred_ty<always_true_pred<APInt>>())); 1938 EXPECT_FALSE(match(CSplatU32Zero, cst_pred_ty<always_false_pred<APInt>>())); 1939 1940 EXPECT_FALSE(match(CSplatU32DeadBeef, cst_pred_ty<is_unsigned_max_pred>())); 1941 EXPECT_FALSE( 1942 match(CSplatU32DeadBeef, cst_pred_ty<is_unsigned_zero_pred>())); 1943 EXPECT_TRUE( 1944 match(CSplatU32DeadBeef, cst_pred_ty<always_true_pred<APInt>>())); 1945 EXPECT_FALSE( 1946 match(CSplatU32DeadBeef, cst_pred_ty<always_false_pred<APInt>>())); 1947 1948 // float 1949 1950 Constant *CSplatF32NaN = ConstantVector::getSplat(EC, CF32NaN); 1951 Constant *CSplatF32Zero = ConstantVector::getSplat(EC, CF32Zero); 1952 Constant *CSplatF32Pi = ConstantVector::getSplat(EC, CF32Pi); 1953 1954 EXPECT_TRUE(match(CSplatF32NaN, cstfp_pred_ty<is_float_nan_pred>())); 1955 EXPECT_FALSE(match(CSplatF32NaN, cstfp_pred_ty<is_float_zero_pred>())); 1956 EXPECT_TRUE( 1957 match(CSplatF32NaN, cstfp_pred_ty<always_true_pred<APFloat>>())); 1958 EXPECT_FALSE( 1959 match(CSplatF32NaN, cstfp_pred_ty<always_false_pred<APFloat>>())); 1960 1961 EXPECT_FALSE(match(CSplatF32Zero, cstfp_pred_ty<is_float_nan_pred>())); 1962 EXPECT_TRUE(match(CSplatF32Zero, cstfp_pred_ty<is_float_zero_pred>())); 1963 EXPECT_TRUE( 1964 match(CSplatF32Zero, cstfp_pred_ty<always_true_pred<APFloat>>())); 1965 EXPECT_FALSE( 1966 match(CSplatF32Zero, cstfp_pred_ty<always_false_pred<APFloat>>())); 1967 1968 EXPECT_FALSE(match(CSplatF32Pi, cstfp_pred_ty<is_float_nan_pred>())); 1969 EXPECT_FALSE(match(CSplatF32Pi, cstfp_pred_ty<is_float_zero_pred>())); 1970 EXPECT_TRUE(match(CSplatF32Pi, cstfp_pred_ty<always_true_pred<APFloat>>())); 1971 EXPECT_FALSE( 1972 match(CSplatF32Pi, cstfp_pred_ty<always_false_pred<APFloat>>())); 1973 } 1974 1975 // Int arbitrary vector 1976 1977 Constant *CMixedU32 = ConstantVector::get({CU32Max, CU32Zero, CU32DeadBeef}); 1978 Constant *CU32Undef = UndefValue::get(U32Ty); 1979 Constant *CU32Poison = PoisonValue::get(U32Ty); 1980 Constant *CU32MaxWithUndef = 1981 ConstantVector::get({CU32Undef, CU32Max, CU32Undef}); 1982 Constant *CU32MaxWithPoison = 1983 ConstantVector::get({CU32Poison, CU32Max, CU32Poison}); 1984 1985 EXPECT_FALSE(match(CMixedU32, cst_pred_ty<is_unsigned_max_pred>())); 1986 EXPECT_FALSE(match(CMixedU32, cst_pred_ty<is_unsigned_zero_pred>())); 1987 EXPECT_TRUE(match(CMixedU32, cst_pred_ty<always_true_pred<APInt>>())); 1988 EXPECT_FALSE(match(CMixedU32, cst_pred_ty<always_false_pred<APInt>>())); 1989 1990 EXPECT_FALSE(match(CU32MaxWithUndef, cst_pred_ty<is_unsigned_max_pred>())); 1991 EXPECT_FALSE(match(CU32MaxWithUndef, cst_pred_ty<is_unsigned_zero_pred>())); 1992 EXPECT_FALSE(match(CU32MaxWithUndef, cst_pred_ty<always_true_pred<APInt>>())); 1993 EXPECT_FALSE( 1994 match(CU32MaxWithUndef, cst_pred_ty<always_false_pred<APInt>>())); 1995 1996 EXPECT_TRUE(match(CU32MaxWithPoison, cst_pred_ty<is_unsigned_max_pred>())); 1997 EXPECT_FALSE(match(CU32MaxWithPoison, cst_pred_ty<is_unsigned_zero_pred>())); 1998 EXPECT_TRUE(match(CU32MaxWithPoison, cst_pred_ty<always_true_pred<APInt>>())); 1999 EXPECT_FALSE( 2000 match(CU32MaxWithPoison, cst_pred_ty<always_false_pred<APInt>>())); 2001 2002 // Float arbitrary vector 2003 2004 Constant *CMixedF32 = ConstantVector::get({CF32NaN, CF32Zero, CF32Pi}); 2005 Constant *CF32Undef = UndefValue::get(F32Ty); 2006 Constant *CF32Poison = PoisonValue::get(F32Ty); 2007 Constant *CF32NaNWithUndef = 2008 ConstantVector::get({CF32Undef, CF32NaN, CF32Undef}); 2009 Constant *CF32NaNWithPoison = 2010 ConstantVector::get({CF32Poison, CF32NaN, CF32Poison}); 2011 2012 EXPECT_FALSE(match(CMixedF32, cstfp_pred_ty<is_float_nan_pred>())); 2013 EXPECT_FALSE(match(CMixedF32, cstfp_pred_ty<is_float_zero_pred>())); 2014 EXPECT_TRUE(match(CMixedF32, cstfp_pred_ty<always_true_pred<APFloat>>())); 2015 EXPECT_FALSE(match(CMixedF32, cstfp_pred_ty<always_false_pred<APFloat>>())); 2016 2017 EXPECT_FALSE(match(CF32NaNWithUndef, cstfp_pred_ty<is_float_nan_pred>())); 2018 EXPECT_FALSE(match(CF32NaNWithUndef, cstfp_pred_ty<is_float_zero_pred>())); 2019 EXPECT_FALSE( 2020 match(CF32NaNWithUndef, cstfp_pred_ty<always_true_pred<APFloat>>())); 2021 EXPECT_FALSE( 2022 match(CF32NaNWithUndef, cstfp_pred_ty<always_false_pred<APFloat>>())); 2023 2024 EXPECT_TRUE(match(CF32NaNWithPoison, cstfp_pred_ty<is_float_nan_pred>())); 2025 EXPECT_FALSE(match(CF32NaNWithPoison, cstfp_pred_ty<is_float_zero_pred>())); 2026 EXPECT_TRUE( 2027 match(CF32NaNWithPoison, cstfp_pred_ty<always_true_pred<APFloat>>())); 2028 EXPECT_FALSE( 2029 match(CF32NaNWithPoison, cstfp_pred_ty<always_false_pred<APFloat>>())); 2030 } 2031 2032 TEST_F(PatternMatchTest, InsertValue) { 2033 Type *StructTy = StructType::create(IRB.getContext(), 2034 {IRB.getInt32Ty(), IRB.getInt64Ty()}); 2035 Value *Ins0 = 2036 IRB.CreateInsertValue(UndefValue::get(StructTy), IRB.getInt32(20), 0); 2037 Value *Ins1 = IRB.CreateInsertValue(Ins0, IRB.getInt64(90), 1); 2038 2039 EXPECT_TRUE(match(Ins0, m_InsertValue<0>(m_Value(), m_Value()))); 2040 EXPECT_FALSE(match(Ins0, m_InsertValue<1>(m_Value(), m_Value()))); 2041 EXPECT_FALSE(match(Ins1, m_InsertValue<0>(m_Value(), m_Value()))); 2042 EXPECT_TRUE(match(Ins1, m_InsertValue<1>(m_Value(), m_Value()))); 2043 2044 EXPECT_TRUE(match(Ins0, m_InsertValue<0>(m_Undef(), m_SpecificInt(20)))); 2045 EXPECT_FALSE(match(Ins0, m_InsertValue<0>(m_Undef(), m_SpecificInt(0)))); 2046 2047 EXPECT_TRUE( 2048 match(Ins1, m_InsertValue<1>(m_InsertValue<0>(m_Value(), m_Value()), 2049 m_SpecificInt(90)))); 2050 EXPECT_FALSE(match(IRB.getInt64(99), m_InsertValue<0>(m_Value(), m_Value()))); 2051 } 2052 2053 TEST_F(PatternMatchTest, LogicalSelects) { 2054 Value *Alloca = IRB.CreateAlloca(IRB.getInt1Ty()); 2055 Value *X = IRB.CreateLoad(IRB.getInt1Ty(), Alloca); 2056 Value *Y = IRB.CreateLoad(IRB.getInt1Ty(), Alloca); 2057 Constant *T = IRB.getInt1(true); 2058 Constant *F = IRB.getInt1(false); 2059 Value *And = IRB.CreateSelect(X, Y, F); 2060 Value *Or = IRB.CreateSelect(X, T, Y); 2061 2062 // Logical and: 2063 // Check basic no-capture logic - opcode and constant must match. 2064 EXPECT_TRUE(match(And, m_LogicalAnd(m_Value(), m_Value()))); 2065 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Value(), m_Value()))); 2066 EXPECT_FALSE(match(And, m_LogicalOr(m_Value(), m_Value()))); 2067 EXPECT_FALSE(match(And, m_c_LogicalOr(m_Value(), m_Value()))); 2068 2069 // Check with captures. 2070 EXPECT_TRUE(match(And, m_LogicalAnd(m_Specific(X), m_Value()))); 2071 EXPECT_TRUE(match(And, m_LogicalAnd(m_Value(), m_Specific(Y)))); 2072 EXPECT_TRUE(match(And, m_LogicalAnd(m_Specific(X), m_Specific(Y)))); 2073 2074 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(Y), m_Value()))); 2075 EXPECT_FALSE(match(And, m_LogicalAnd(m_Value(), m_Specific(X)))); 2076 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(Y), m_Specific(X)))); 2077 2078 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(X), m_Specific(X)))); 2079 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(Y), m_Specific(Y)))); 2080 2081 // Check captures for commutative match. 2082 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(X), m_Value()))); 2083 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Value(), m_Specific(Y)))); 2084 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(X), m_Specific(Y)))); 2085 2086 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(Y), m_Value()))); 2087 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Value(), m_Specific(X)))); 2088 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(Y), m_Specific(X)))); 2089 2090 EXPECT_FALSE(match(And, m_c_LogicalAnd(m_Specific(X), m_Specific(X)))); 2091 EXPECT_FALSE(match(And, m_c_LogicalAnd(m_Specific(Y), m_Specific(Y)))); 2092 2093 // Logical or: 2094 // Check basic no-capture logic - opcode and constant must match. 2095 EXPECT_TRUE(match(Or, m_LogicalOr(m_Value(), m_Value()))); 2096 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Value(), m_Value()))); 2097 EXPECT_FALSE(match(Or, m_LogicalAnd(m_Value(), m_Value()))); 2098 EXPECT_FALSE(match(Or, m_c_LogicalAnd(m_Value(), m_Value()))); 2099 2100 // Check with captures. 2101 EXPECT_TRUE(match(Or, m_LogicalOr(m_Specific(X), m_Value()))); 2102 EXPECT_TRUE(match(Or, m_LogicalOr(m_Value(), m_Specific(Y)))); 2103 EXPECT_TRUE(match(Or, m_LogicalOr(m_Specific(X), m_Specific(Y)))); 2104 2105 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(Y), m_Value()))); 2106 EXPECT_FALSE(match(Or, m_LogicalOr(m_Value(), m_Specific(X)))); 2107 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(Y), m_Specific(X)))); 2108 2109 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(X), m_Specific(X)))); 2110 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(Y), m_Specific(Y)))); 2111 2112 // Check captures for commutative match. 2113 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(X), m_Value()))); 2114 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Value(), m_Specific(Y)))); 2115 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(X), m_Specific(Y)))); 2116 2117 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(Y), m_Value()))); 2118 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Value(), m_Specific(X)))); 2119 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(Y), m_Specific(X)))); 2120 2121 EXPECT_FALSE(match(Or, m_c_LogicalOr(m_Specific(X), m_Specific(X)))); 2122 EXPECT_FALSE(match(Or, m_c_LogicalOr(m_Specific(Y), m_Specific(Y)))); 2123 } 2124 2125 TEST_F(PatternMatchTest, VectorLogicalSelects) { 2126 Type *i1 = IRB.getInt1Ty(); 2127 Type *v3i1 = FixedVectorType::get(i1, 3); 2128 2129 Value *Alloca = IRB.CreateAlloca(i1); 2130 Value *AllocaVec = IRB.CreateAlloca(v3i1); 2131 Value *Scalar = IRB.CreateLoad(i1, Alloca); 2132 Value *Vector = IRB.CreateLoad(v3i1, AllocaVec); 2133 Constant *F = Constant::getNullValue(v3i1); 2134 Constant *T = Constant::getAllOnesValue(v3i1); 2135 2136 // select <3 x i1> Vector, <3 x i1> Vector, <3 x i1> <i1 0, i1 0, i1 0> 2137 Value *VecAnd = IRB.CreateSelect(Vector, Vector, F); 2138 2139 // select i1 Scalar, <3 x i1> Vector, <3 x i1> <i1 0, i1 0, i1 0> 2140 Value *MixedTypeAnd = IRB.CreateSelect(Scalar, Vector, F); 2141 2142 // select <3 x i1> Vector, <3 x i1> <i1 1, i1 1, i1 1>, <3 x i1> Vector 2143 Value *VecOr = IRB.CreateSelect(Vector, T, Vector); 2144 2145 // select i1 Scalar, <3 x i1> <i1 1, i1 1, i1 1>, <3 x i1> Vector 2146 Value *MixedTypeOr = IRB.CreateSelect(Scalar, T, Vector); 2147 2148 // We allow matching a real vector logical select, 2149 // but not a scalar select of vector bools. 2150 EXPECT_TRUE(match(VecAnd, m_LogicalAnd(m_Value(), m_Value()))); 2151 EXPECT_FALSE(match(MixedTypeAnd, m_LogicalAnd(m_Value(), m_Value()))); 2152 EXPECT_TRUE(match(VecOr, m_LogicalOr(m_Value(), m_Value()))); 2153 EXPECT_FALSE(match(MixedTypeOr, m_LogicalOr(m_Value(), m_Value()))); 2154 } 2155 2156 TEST_F(PatternMatchTest, VScale) { 2157 DataLayout DL = M->getDataLayout(); 2158 2159 Type *VecTy = ScalableVectorType::get(IRB.getInt8Ty(), 1); 2160 Value *NullPtrVec = 2161 Constant::getNullValue(PointerType::getUnqual(VecTy->getContext())); 2162 Value *GEP = IRB.CreateGEP(VecTy, NullPtrVec, IRB.getInt64(1)); 2163 Value *PtrToInt = IRB.CreatePtrToInt(GEP, DL.getIntPtrType(GEP->getType())); 2164 EXPECT_TRUE(match(PtrToInt, m_VScale())); 2165 2166 Type *VecTy2 = ScalableVectorType::get(IRB.getInt8Ty(), 2); 2167 Value *NullPtrVec2 = 2168 Constant::getNullValue(PointerType::getUnqual(VecTy2->getContext())); 2169 Value *GEP2 = IRB.CreateGEP(VecTy, NullPtrVec2, IRB.getInt64(1)); 2170 Value *PtrToInt2 = 2171 IRB.CreatePtrToInt(GEP2, DL.getIntPtrType(GEP2->getType())); 2172 EXPECT_TRUE(match(PtrToInt2, m_VScale())); 2173 } 2174 2175 TEST_F(PatternMatchTest, NotForbidPoison) { 2176 Type *ScalarTy = IRB.getInt8Ty(); 2177 Type *VectorTy = FixedVectorType::get(ScalarTy, 3); 2178 Constant *ScalarUndef = UndefValue::get(ScalarTy); 2179 Constant *ScalarPoison = PoisonValue::get(ScalarTy); 2180 Constant *ScalarOnes = Constant::getAllOnesValue(ScalarTy); 2181 Constant *VectorZero = Constant::getNullValue(VectorTy); 2182 Constant *VectorOnes = Constant::getAllOnesValue(VectorTy); 2183 2184 SmallVector<Constant *, 3> MixedElemsUndef; 2185 MixedElemsUndef.push_back(ScalarOnes); 2186 MixedElemsUndef.push_back(ScalarOnes); 2187 MixedElemsUndef.push_back(ScalarUndef); 2188 Constant *VectorMixedUndef = ConstantVector::get(MixedElemsUndef); 2189 2190 SmallVector<Constant *, 3> MixedElemsPoison; 2191 MixedElemsPoison.push_back(ScalarOnes); 2192 MixedElemsPoison.push_back(ScalarOnes); 2193 MixedElemsPoison.push_back(ScalarPoison); 2194 Constant *VectorMixedPoison = ConstantVector::get(MixedElemsPoison); 2195 2196 Value *Not = IRB.CreateXor(VectorZero, VectorOnes); 2197 Value *X; 2198 EXPECT_TRUE(match(Not, m_Not(m_Value(X)))); 2199 EXPECT_TRUE(match(X, m_Zero())); 2200 X = nullptr; 2201 EXPECT_TRUE(match(Not, m_NotForbidPoison(m_Value(X)))); 2202 EXPECT_TRUE(match(X, m_Zero())); 2203 2204 Value *NotCommute = IRB.CreateXor(VectorOnes, VectorZero); 2205 Value *Y; 2206 EXPECT_TRUE(match(NotCommute, m_Not(m_Value(Y)))); 2207 EXPECT_TRUE(match(Y, m_Zero())); 2208 Y = nullptr; 2209 EXPECT_TRUE(match(NotCommute, m_NotForbidPoison(m_Value(Y)))); 2210 EXPECT_TRUE(match(Y, m_Zero())); 2211 2212 Value *NotWithUndefs = IRB.CreateXor(VectorZero, VectorMixedUndef); 2213 EXPECT_FALSE(match(NotWithUndefs, m_Not(m_Value()))); 2214 EXPECT_FALSE(match(NotWithUndefs, m_NotForbidPoison(m_Value()))); 2215 2216 Value *NotWithPoisons = IRB.CreateXor(VectorZero, VectorMixedPoison); 2217 EXPECT_TRUE(match(NotWithPoisons, m_Not(m_Value()))); 2218 EXPECT_FALSE(match(NotWithPoisons, m_NotForbidPoison(m_Value()))); 2219 2220 Value *NotWithUndefsCommute = IRB.CreateXor(VectorMixedUndef, VectorZero); 2221 EXPECT_FALSE(match(NotWithUndefsCommute, m_Not(m_Value()))); 2222 EXPECT_FALSE(match(NotWithUndefsCommute, m_NotForbidPoison(m_Value()))); 2223 2224 Value *NotWithPoisonsCommute = IRB.CreateXor(VectorMixedPoison, VectorZero); 2225 EXPECT_TRUE(match(NotWithPoisonsCommute, m_Not(m_Value()))); 2226 EXPECT_FALSE(match(NotWithPoisonsCommute, m_NotForbidPoison(m_Value()))); 2227 } 2228 2229 template <typename T> struct MutableConstTest : PatternMatchTest { }; 2230 2231 typedef ::testing::Types<std::tuple<Value*, Instruction*>, 2232 std::tuple<const Value*, const Instruction *>> 2233 MutableConstTestTypes; 2234 TYPED_TEST_SUITE(MutableConstTest, MutableConstTestTypes, ); 2235 2236 TYPED_TEST(MutableConstTest, ICmp) { 2237 auto &IRB = PatternMatchTest::IRB; 2238 2239 typedef std::tuple_element_t<0, TypeParam> ValueType; 2240 typedef std::tuple_element_t<1, TypeParam> InstructionType; 2241 2242 Value *L = IRB.getInt32(1); 2243 Value *R = IRB.getInt32(2); 2244 ICmpInst::Predicate Pred = ICmpInst::ICMP_UGT; 2245 2246 ValueType MatchL; 2247 ValueType MatchR; 2248 ICmpInst::Predicate MatchPred; 2249 2250 EXPECT_TRUE(m_ICmp(MatchPred, m_Value(MatchL), m_Value(MatchR)) 2251 .match((InstructionType)IRB.CreateICmp(Pred, L, R))); 2252 EXPECT_EQ(L, MatchL); 2253 EXPECT_EQ(R, MatchR); 2254 } 2255 2256 TEST_F(PatternMatchTest, ConstExpr) { 2257 Constant *G = 2258 M->getOrInsertGlobal("dummy", PointerType::getUnqual(IRB.getInt32Ty())); 2259 Constant *S = ConstantExpr::getPtrToInt(G, IRB.getInt32Ty()); 2260 Type *VecTy = FixedVectorType::get(IRB.getInt32Ty(), 2); 2261 PoisonValue *P = PoisonValue::get(VecTy); 2262 Constant *V = ConstantExpr::getInsertElement(P, S, IRB.getInt32(0)); 2263 2264 // The match succeeds on a constant that is a constant expression itself 2265 // or a constant that contains a constant expression. 2266 EXPECT_TRUE(match(S, m_ConstantExpr())); 2267 EXPECT_TRUE(match(V, m_ConstantExpr())); 2268 } 2269 2270 TEST_F(PatternMatchTest, PtrAdd) { 2271 Type *PtrTy = PointerType::getUnqual(Ctx); 2272 Type *IdxTy = Type::getInt64Ty(Ctx); 2273 Constant *Null = Constant::getNullValue(PtrTy); 2274 Constant *Offset = ConstantInt::get(IdxTy, 42); 2275 Value *PtrAdd = IRB.CreatePtrAdd(Null, Offset); 2276 Value *OtherGEP = IRB.CreateGEP(IdxTy, Null, Offset); 2277 Value *PtrAddConst = 2278 ConstantExpr::getGetElementPtr(Type::getInt8Ty(Ctx), Null, Offset); 2279 2280 Value *A, *B; 2281 EXPECT_TRUE(match(PtrAdd, m_PtrAdd(m_Value(A), m_Value(B)))); 2282 EXPECT_EQ(A, Null); 2283 EXPECT_EQ(B, Offset); 2284 2285 EXPECT_TRUE(match(PtrAddConst, m_PtrAdd(m_Value(A), m_Value(B)))); 2286 EXPECT_EQ(A, Null); 2287 EXPECT_EQ(B, Offset); 2288 2289 EXPECT_FALSE(match(OtherGEP, m_PtrAdd(m_Value(A), m_Value(B)))); 2290 } 2291 2292 } // anonymous namespace. 2293