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, Power2) { 615 Value *C128 = IRB.getInt32(128); 616 Value *CNeg128 = ConstantExpr::getNeg(cast<Constant>(C128)); 617 618 EXPECT_TRUE(m_Power2().match(C128)); 619 EXPECT_FALSE(m_Power2().match(CNeg128)); 620 621 EXPECT_TRUE(m_Power2OrZero().match(C128)); 622 EXPECT_FALSE(m_Power2OrZero().match(CNeg128)); 623 624 EXPECT_FALSE(m_NegatedPower2().match(C128)); 625 EXPECT_TRUE(m_NegatedPower2().match(CNeg128)); 626 627 EXPECT_FALSE(m_NegatedPower2OrZero().match(C128)); 628 EXPECT_TRUE(m_NegatedPower2OrZero().match(CNeg128)); 629 630 Value *CIntMin = IRB.getInt64(APSInt::getSignedMinValue(64).getSExtValue()); 631 Value *CNegIntMin = ConstantExpr::getNeg(cast<Constant>(CIntMin)); 632 633 EXPECT_TRUE(m_Power2().match(CIntMin)); 634 EXPECT_TRUE(m_Power2().match(CNegIntMin)); 635 636 EXPECT_TRUE(m_Power2OrZero().match(CIntMin)); 637 EXPECT_TRUE(m_Power2OrZero().match(CNegIntMin)); 638 639 EXPECT_TRUE(m_NegatedPower2().match(CIntMin)); 640 EXPECT_TRUE(m_NegatedPower2().match(CNegIntMin)); 641 642 EXPECT_TRUE(m_NegatedPower2OrZero().match(CIntMin)); 643 EXPECT_TRUE(m_NegatedPower2OrZero().match(CNegIntMin)); 644 645 Value *CZero = IRB.getInt64(0); 646 647 EXPECT_FALSE(m_Power2().match(CZero)); 648 649 EXPECT_TRUE(m_Power2OrZero().match(CZero)); 650 651 EXPECT_FALSE(m_NegatedPower2().match(CZero)); 652 653 EXPECT_TRUE(m_NegatedPower2OrZero().match(CZero)); 654 } 655 656 TEST_F(PatternMatchTest, Not) { 657 Value *C1 = IRB.getInt32(1); 658 Value *C2 = IRB.getInt32(2); 659 Value *C3 = IRB.getInt32(3); 660 Instruction *Not = BinaryOperator::CreateXor(C1, C2); 661 662 // When `m_Not` does not match the `not` itself, 663 // it should not try to apply the inner matcher. 664 Value *Val = C3; 665 EXPECT_FALSE(m_Not(m_Value(Val)).match(Not)); 666 EXPECT_EQ(Val, C3); 667 Not->deleteValue(); 668 } 669 670 TEST_F(PatternMatchTest, CommutativeDeferredValue) { 671 Value *X = IRB.getInt32(1); 672 Value *Y = IRB.getInt32(2); 673 674 { 675 Value *tX = X; 676 EXPECT_TRUE(match(X, m_Deferred(tX))); 677 EXPECT_FALSE(match(Y, m_Deferred(tX))); 678 } 679 { 680 const Value *tX = X; 681 EXPECT_TRUE(match(X, m_Deferred(tX))); 682 EXPECT_FALSE(match(Y, m_Deferred(tX))); 683 } 684 { 685 Value *const tX = X; 686 EXPECT_TRUE(match(X, m_Deferred(tX))); 687 EXPECT_FALSE(match(Y, m_Deferred(tX))); 688 } 689 { 690 const Value *const tX = X; 691 EXPECT_TRUE(match(X, m_Deferred(tX))); 692 EXPECT_FALSE(match(Y, m_Deferred(tX))); 693 } 694 695 { 696 Value *tX = nullptr; 697 EXPECT_TRUE(match(IRB.CreateAnd(X, X), m_And(m_Value(tX), m_Deferred(tX)))); 698 EXPECT_EQ(tX, X); 699 } 700 { 701 Value *tX = nullptr; 702 EXPECT_FALSE( 703 match(IRB.CreateAnd(X, Y), m_c_And(m_Value(tX), m_Deferred(tX)))); 704 } 705 706 auto checkMatch = [X, Y](Value *Pattern) { 707 Value *tX = nullptr, *tY = nullptr; 708 EXPECT_TRUE(match( 709 Pattern, m_c_And(m_Value(tX), m_c_And(m_Deferred(tX), m_Value(tY))))); 710 EXPECT_EQ(tX, X); 711 EXPECT_EQ(tY, Y); 712 }; 713 714 checkMatch(IRB.CreateAnd(X, IRB.CreateAnd(X, Y))); 715 checkMatch(IRB.CreateAnd(X, IRB.CreateAnd(Y, X))); 716 checkMatch(IRB.CreateAnd(IRB.CreateAnd(X, Y), X)); 717 checkMatch(IRB.CreateAnd(IRB.CreateAnd(Y, X), X)); 718 } 719 720 TEST_F(PatternMatchTest, FloatingPointOrderedMin) { 721 Type *FltTy = IRB.getFloatTy(); 722 Value *L = ConstantFP::get(FltTy, 1.0); 723 Value *R = ConstantFP::get(FltTy, 2.0); 724 Value *MatchL, *MatchR; 725 726 // Test OLT. 727 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 728 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), L, R))); 729 EXPECT_EQ(L, MatchL); 730 EXPECT_EQ(R, MatchR); 731 732 // Test OLE. 733 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 734 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), L, R))); 735 EXPECT_EQ(L, MatchL); 736 EXPECT_EQ(R, MatchR); 737 738 // Test no match on OGE. 739 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 740 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), L, R))); 741 742 // Test no match on OGT. 743 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 744 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), L, R))); 745 746 // Test inverted selects. Note, that this "inverts" the ordering, e.g.: 747 // %cmp = fcmp oge L, R 748 // %min = select %cmp R, L 749 // Given L == NaN 750 // the above is expanded to %cmp == false ==> %min = L 751 // which is true for UnordFMin, not OrdFMin, so test that: 752 753 // [OU]GE with inverted select. 754 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 755 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), R, L))); 756 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 757 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), R, L))); 758 EXPECT_EQ(L, MatchL); 759 EXPECT_EQ(R, MatchR); 760 761 // [OU]GT with inverted select. 762 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 763 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), R, L))); 764 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 765 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), R, L))); 766 EXPECT_EQ(L, MatchL); 767 EXPECT_EQ(R, MatchR); 768 } 769 770 TEST_F(PatternMatchTest, FloatingPointOrderedMax) { 771 Type *FltTy = IRB.getFloatTy(); 772 Value *L = ConstantFP::get(FltTy, 1.0); 773 Value *R = ConstantFP::get(FltTy, 2.0); 774 Value *MatchL, *MatchR; 775 776 // Test OGT. 777 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 778 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), L, R))); 779 EXPECT_EQ(L, MatchL); 780 EXPECT_EQ(R, MatchR); 781 782 // Test OGE. 783 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 784 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), L, R))); 785 EXPECT_EQ(L, MatchL); 786 EXPECT_EQ(R, MatchR); 787 788 // Test no match on OLE. 789 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 790 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), L, R))); 791 792 // Test no match on OLT. 793 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 794 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), L, R))); 795 796 797 // Test inverted selects. Note, that this "inverts" the ordering, e.g.: 798 // %cmp = fcmp ole L, R 799 // %max = select %cmp, R, L 800 // Given L == NaN, 801 // the above is expanded to %cmp == false ==> %max == L 802 // which is true for UnordFMax, not OrdFMax, so test that: 803 804 // [OU]LE with inverted select. 805 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 806 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), R, L))); 807 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 808 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), R, L))); 809 EXPECT_EQ(L, MatchL); 810 EXPECT_EQ(R, MatchR); 811 812 // [OUT]LT with inverted select. 813 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 814 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), R, L))); 815 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 816 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), R, L))); 817 EXPECT_EQ(L, MatchL); 818 EXPECT_EQ(R, MatchR); 819 } 820 821 TEST_F(PatternMatchTest, FloatingPointUnorderedMin) { 822 Type *FltTy = IRB.getFloatTy(); 823 Value *L = ConstantFP::get(FltTy, 1.0); 824 Value *R = ConstantFP::get(FltTy, 2.0); 825 Value *MatchL, *MatchR; 826 827 // Test ULT. 828 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 829 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), L, R))); 830 EXPECT_EQ(L, MatchL); 831 EXPECT_EQ(R, MatchR); 832 833 // Test ULE. 834 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 835 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), L, R))); 836 EXPECT_EQ(L, MatchL); 837 EXPECT_EQ(R, MatchR); 838 839 // Test no match on UGE. 840 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 841 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), L, R))); 842 843 // Test no match on UGT. 844 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 845 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), L, R))); 846 847 // Test inverted selects. Note, that this "inverts" the ordering, e.g.: 848 // %cmp = fcmp uge L, R 849 // %min = select %cmp R, L 850 // Given L == NaN 851 // the above is expanded to %cmp == true ==> %min = R 852 // which is true for OrdFMin, not UnordFMin, so test that: 853 854 // [UO]GE with inverted select. 855 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 856 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), R, L))); 857 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 858 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), R, L))); 859 EXPECT_EQ(L, MatchL); 860 EXPECT_EQ(R, MatchR); 861 862 // [UO]GT with inverted select. 863 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 864 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), R, L))); 865 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 866 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), R, L))); 867 EXPECT_EQ(L, MatchL); 868 EXPECT_EQ(R, MatchR); 869 } 870 871 TEST_F(PatternMatchTest, FloatingPointUnorderedMax) { 872 Type *FltTy = IRB.getFloatTy(); 873 Value *L = ConstantFP::get(FltTy, 1.0); 874 Value *R = ConstantFP::get(FltTy, 2.0); 875 Value *MatchL, *MatchR; 876 877 // Test UGT. 878 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 879 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), L, R))); 880 EXPECT_EQ(L, MatchL); 881 EXPECT_EQ(R, MatchR); 882 883 // Test UGE. 884 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 885 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), L, R))); 886 EXPECT_EQ(L, MatchL); 887 EXPECT_EQ(R, MatchR); 888 889 // Test no match on ULE. 890 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 891 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), L, R))); 892 893 // Test no match on ULT. 894 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 895 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), L, R))); 896 897 // Test inverted selects. Note, that this "inverts" the ordering, e.g.: 898 // %cmp = fcmp ule L, R 899 // %max = select %cmp R, L 900 // Given L == NaN 901 // the above is expanded to %cmp == true ==> %max = R 902 // which is true for OrdFMax, not UnordFMax, so test that: 903 904 // [UO]LE with inverted select. 905 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 906 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), R, L))); 907 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 908 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), R, L))); 909 EXPECT_EQ(L, MatchL); 910 EXPECT_EQ(R, MatchR); 911 912 // [UO]LT with inverted select. 913 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 914 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), R, L))); 915 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 916 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), R, L))); 917 EXPECT_EQ(L, MatchL); 918 EXPECT_EQ(R, MatchR); 919 } 920 921 TEST_F(PatternMatchTest, OverflowingBinOps) { 922 Value *L = IRB.getInt32(1); 923 Value *R = IRB.getInt32(2); 924 Value *MatchL, *MatchR; 925 926 EXPECT_TRUE( 927 m_NSWAdd(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWAdd(L, R))); 928 EXPECT_EQ(L, MatchL); 929 EXPECT_EQ(R, MatchR); 930 MatchL = MatchR = nullptr; 931 EXPECT_TRUE( 932 m_NSWSub(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWSub(L, R))); 933 EXPECT_EQ(L, MatchL); 934 EXPECT_EQ(R, MatchR); 935 MatchL = MatchR = nullptr; 936 EXPECT_TRUE( 937 m_NSWMul(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWMul(L, R))); 938 EXPECT_EQ(L, MatchL); 939 EXPECT_EQ(R, MatchR); 940 MatchL = MatchR = nullptr; 941 EXPECT_TRUE(m_NSWShl(m_Value(MatchL), m_Value(MatchR)).match( 942 IRB.CreateShl(L, R, "", /* NUW */ false, /* NSW */ true))); 943 EXPECT_EQ(L, MatchL); 944 EXPECT_EQ(R, MatchR); 945 946 EXPECT_TRUE( 947 m_NUWAdd(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWAdd(L, R))); 948 EXPECT_EQ(L, MatchL); 949 EXPECT_EQ(R, MatchR); 950 MatchL = MatchR = nullptr; 951 952 EXPECT_TRUE( 953 m_c_NUWAdd(m_Specific(L), m_Specific(R)).match(IRB.CreateNUWAdd(L, R))); 954 EXPECT_TRUE( 955 m_c_NUWAdd(m_Specific(R), m_Specific(L)).match(IRB.CreateNUWAdd(L, R))); 956 EXPECT_FALSE( 957 m_c_NUWAdd(m_Specific(R), m_ZeroInt()).match(IRB.CreateNUWAdd(L, R))); 958 EXPECT_FALSE( 959 m_NUWAdd(m_Specific(R), m_Specific(L)).match(IRB.CreateNUWAdd(L, R))); 960 961 EXPECT_TRUE( 962 m_NUWSub(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWSub(L, R))); 963 EXPECT_EQ(L, MatchL); 964 EXPECT_EQ(R, MatchR); 965 MatchL = MatchR = nullptr; 966 EXPECT_TRUE( 967 m_NUWMul(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWMul(L, R))); 968 EXPECT_EQ(L, MatchL); 969 EXPECT_EQ(R, MatchR); 970 MatchL = MatchR = nullptr; 971 EXPECT_TRUE(m_NUWShl(m_Value(MatchL), m_Value(MatchR)).match( 972 IRB.CreateShl(L, R, "", /* NUW */ true, /* NSW */ false))); 973 EXPECT_EQ(L, MatchL); 974 EXPECT_EQ(R, MatchR); 975 976 EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateAdd(L, R))); 977 EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); 978 EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateNSWSub(L, R))); 979 EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateSub(L, R))); 980 EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateNUWSub(L, R))); 981 EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); 982 EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateMul(L, R))); 983 EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateNUWMul(L, R))); 984 EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); 985 EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match(IRB.CreateShl(L, R))); 986 EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match( 987 IRB.CreateShl(L, R, "", /* NUW */ true, /* NSW */ false))); 988 EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); 989 990 EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateAdd(L, R))); 991 EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); 992 EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateNUWSub(L, R))); 993 EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateSub(L, R))); 994 EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateNSWSub(L, R))); 995 EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); 996 EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateMul(L, R))); 997 EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateNSWMul(L, R))); 998 EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); 999 EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match(IRB.CreateShl(L, R))); 1000 EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match( 1001 IRB.CreateShl(L, R, "", /* NUW */ false, /* NSW */ true))); 1002 EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); 1003 } 1004 1005 TEST_F(PatternMatchTest, LoadStoreOps) { 1006 // Create this load/store sequence: 1007 // 1008 // %p = alloca i32* 1009 // %0 = load i32*, i32** %p 1010 // store i32 42, i32* %0 1011 1012 Value *Alloca = IRB.CreateAlloca(IRB.getInt32Ty()); 1013 Value *LoadInst = IRB.CreateLoad(IRB.getInt32Ty(), Alloca); 1014 Value *FourtyTwo = IRB.getInt32(42); 1015 Value *StoreInst = IRB.CreateStore(FourtyTwo, Alloca); 1016 Value *MatchLoad, *MatchStoreVal, *MatchStorePointer; 1017 1018 EXPECT_TRUE(m_Load(m_Value(MatchLoad)).match(LoadInst)); 1019 EXPECT_EQ(Alloca, MatchLoad); 1020 1021 EXPECT_TRUE(m_Load(m_Specific(Alloca)).match(LoadInst)); 1022 1023 EXPECT_FALSE(m_Load(m_Value(MatchLoad)).match(Alloca)); 1024 1025 EXPECT_TRUE(m_Store(m_Value(MatchStoreVal), m_Value(MatchStorePointer)) 1026 .match(StoreInst)); 1027 EXPECT_EQ(FourtyTwo, MatchStoreVal); 1028 EXPECT_EQ(Alloca, MatchStorePointer); 1029 1030 EXPECT_FALSE(m_Store(m_Value(MatchStoreVal), m_Value(MatchStorePointer)) 1031 .match(Alloca)); 1032 1033 EXPECT_TRUE(m_Store(m_SpecificInt(42), m_Specific(Alloca)) 1034 .match(StoreInst)); 1035 EXPECT_FALSE(m_Store(m_SpecificInt(42), m_Specific(FourtyTwo)) 1036 .match(StoreInst)); 1037 EXPECT_FALSE(m_Store(m_SpecificInt(43), m_Specific(Alloca)) 1038 .match(StoreInst)); 1039 } 1040 1041 TEST_F(PatternMatchTest, VectorOps) { 1042 // Build up small tree of vector operations 1043 // 1044 // Val = 0 + 1 1045 // Val2 = Val + 3 1046 // VI1 = insertelement <2 x i8> undef, i8 1, i32 0 = <1, undef> 1047 // VI2 = insertelement <2 x i8> %VI1, i8 %Val2, i8 %Val = <1, 4> 1048 // VI3 = insertelement <2 x i8> %VI1, i8 %Val2, i32 1 = <1, 4> 1049 // VI4 = insertelement <2 x i8> %VI1, i8 2, i8 %Val = <1, 2> 1050 // 1051 // SI1 = shufflevector <2 x i8> %VI1, <2 x i8> undef, zeroinitializer 1052 // SI2 = shufflevector <2 x i8> %VI3, <2 x i8> %VI4, <2 x i8> <i8 0, i8 2> 1053 // SI3 = shufflevector <2 x i8> %VI3, <2 x i8> undef, zeroinitializer 1054 // SI4 = shufflevector <2 x i8> %VI4, <2 x i8> undef, zeroinitializer 1055 // 1056 // SP1 = VectorSplat(2, i8 2) 1057 // SP2 = VectorSplat(2, i8 %Val) 1058 Type *VecTy = FixedVectorType::get(IRB.getInt8Ty(), 2); 1059 Type *i32 = IRB.getInt32Ty(); 1060 Type *i32VecTy = FixedVectorType::get(i32, 2); 1061 1062 Value *Val = IRB.CreateAdd(IRB.getInt8(0), IRB.getInt8(1)); 1063 Value *Val2 = IRB.CreateAdd(Val, IRB.getInt8(3)); 1064 1065 SmallVector<Constant *, 2> VecElemIdxs; 1066 VecElemIdxs.push_back(ConstantInt::get(i32, 0)); 1067 VecElemIdxs.push_back(ConstantInt::get(i32, 2)); 1068 auto *IdxVec = ConstantVector::get(VecElemIdxs); 1069 1070 Value *VI1 = IRB.CreateInsertElement(VecTy, IRB.getInt8(1), (uint64_t)0); 1071 Value *VI2 = IRB.CreateInsertElement(VI1, Val2, Val); 1072 Value *VI3 = IRB.CreateInsertElement(VI1, Val2, (uint64_t)1); 1073 Value *VI4 = IRB.CreateInsertElement(VI1, IRB.getInt8(2), Val); 1074 1075 Value *EX1 = IRB.CreateExtractElement(VI4, Val); 1076 Value *EX2 = IRB.CreateExtractElement(VI4, (uint64_t)0); 1077 Value *EX3 = IRB.CreateExtractElement(IdxVec, (uint64_t)1); 1078 1079 Constant *Zero = ConstantAggregateZero::get(i32VecTy); 1080 SmallVector<int, 16> ZeroMask; 1081 ShuffleVectorInst::getShuffleMask(Zero, ZeroMask); 1082 1083 Value *SI1 = IRB.CreateShuffleVector(VI1, ZeroMask); 1084 Value *SI2 = IRB.CreateShuffleVector(VI3, VI4, IdxVec); 1085 Value *SI3 = IRB.CreateShuffleVector(VI3, ZeroMask); 1086 Value *SI4 = IRB.CreateShuffleVector(VI4, ZeroMask); 1087 1088 Value *SP1 = IRB.CreateVectorSplat(2, IRB.getInt8(2)); 1089 Value *SP2 = IRB.CreateVectorSplat(2, Val); 1090 1091 Value *A = nullptr, *B = nullptr, *C = nullptr; 1092 1093 // Test matching insertelement 1094 EXPECT_TRUE(match(VI1, m_InsertElt(m_Value(), m_Value(), m_Value()))); 1095 EXPECT_TRUE( 1096 match(VI1, m_InsertElt(m_Undef(), m_ConstantInt(), m_ConstantInt()))); 1097 EXPECT_TRUE( 1098 match(VI1, m_InsertElt(m_Undef(), m_ConstantInt(), m_Zero()))); 1099 EXPECT_TRUE( 1100 match(VI1, m_InsertElt(m_Undef(), m_SpecificInt(1), m_Zero()))); 1101 EXPECT_TRUE(match(VI2, m_InsertElt(m_Value(), m_Value(), m_Value()))); 1102 EXPECT_FALSE( 1103 match(VI2, m_InsertElt(m_Value(), m_Value(), m_ConstantInt()))); 1104 EXPECT_FALSE( 1105 match(VI2, m_InsertElt(m_Value(), m_ConstantInt(), m_Value()))); 1106 EXPECT_FALSE(match(VI2, m_InsertElt(m_Constant(), m_Value(), m_Value()))); 1107 EXPECT_TRUE(match(VI3, m_InsertElt(m_Value(A), m_Value(B), m_Value(C)))); 1108 EXPECT_TRUE(A == VI1); 1109 EXPECT_TRUE(B == Val2); 1110 EXPECT_TRUE(isa<ConstantInt>(C)); 1111 A = B = C = nullptr; // reset 1112 1113 // Test matching extractelement 1114 EXPECT_TRUE(match(EX1, m_ExtractElt(m_Value(A), m_Value(B)))); 1115 EXPECT_TRUE(A == VI4); 1116 EXPECT_TRUE(B == Val); 1117 A = B = C = nullptr; // reset 1118 EXPECT_FALSE(match(EX1, m_ExtractElt(m_Value(), m_ConstantInt()))); 1119 EXPECT_TRUE(match(EX2, m_ExtractElt(m_Value(), m_ConstantInt()))); 1120 EXPECT_TRUE(match(EX3, m_ExtractElt(m_Constant(), m_ConstantInt()))); 1121 1122 // Test matching shufflevector 1123 ArrayRef<int> Mask; 1124 EXPECT_TRUE(match(SI1, m_Shuffle(m_Value(), m_Undef(), m_ZeroMask()))); 1125 EXPECT_TRUE(match(SI2, m_Shuffle(m_Value(A), m_Value(B), m_Mask(Mask)))); 1126 EXPECT_TRUE(A == VI3); 1127 EXPECT_TRUE(B == VI4); 1128 A = B = C = nullptr; // reset 1129 1130 // Test matching the vector splat pattern 1131 EXPECT_TRUE(match( 1132 SI1, 1133 m_Shuffle(m_InsertElt(m_Undef(), m_SpecificInt(1), m_Zero()), 1134 m_Undef(), m_ZeroMask()))); 1135 EXPECT_FALSE(match( 1136 SI3, m_Shuffle(m_InsertElt(m_Undef(), m_Value(), m_Zero()), 1137 m_Undef(), m_ZeroMask()))); 1138 EXPECT_FALSE(match( 1139 SI4, m_Shuffle(m_InsertElt(m_Undef(), m_Value(), m_Zero()), 1140 m_Undef(), m_ZeroMask()))); 1141 EXPECT_TRUE(match( 1142 SP1, 1143 m_Shuffle(m_InsertElt(m_Undef(), m_SpecificInt(2), m_Zero()), 1144 m_Undef(), m_ZeroMask()))); 1145 EXPECT_TRUE(match( 1146 SP2, m_Shuffle(m_InsertElt(m_Undef(), m_Value(A), m_Zero()), 1147 m_Undef(), m_ZeroMask()))); 1148 EXPECT_TRUE(A == Val); 1149 } 1150 1151 TEST_F(PatternMatchTest, UndefPoisonMix) { 1152 Type *ScalarTy = IRB.getInt8Ty(); 1153 ArrayType *ArrTy = ArrayType::get(ScalarTy, 2); 1154 StructType *StTy = StructType::get(ScalarTy, ScalarTy); 1155 StructType *StTy2 = StructType::get(ScalarTy, StTy); 1156 StructType *StTy3 = StructType::get(StTy, ScalarTy); 1157 Constant *Zero = ConstantInt::getNullValue(ScalarTy); 1158 UndefValue *U = UndefValue::get(ScalarTy); 1159 UndefValue *P = PoisonValue::get(ScalarTy); 1160 1161 EXPECT_TRUE(match(ConstantVector::get({U, P}), m_Undef())); 1162 EXPECT_TRUE(match(ConstantVector::get({P, U}), m_Undef())); 1163 1164 EXPECT_TRUE(match(ConstantArray::get(ArrTy, {U, P}), m_Undef())); 1165 EXPECT_TRUE(match(ConstantArray::get(ArrTy, {P, U}), m_Undef())); 1166 1167 auto *UP = ConstantStruct::get(StTy, {U, P}); 1168 EXPECT_TRUE(match(ConstantStruct::get(StTy2, {U, UP}), m_Undef())); 1169 EXPECT_TRUE(match(ConstantStruct::get(StTy2, {P, UP}), m_Undef())); 1170 EXPECT_TRUE(match(ConstantStruct::get(StTy3, {UP, U}), m_Undef())); 1171 EXPECT_TRUE(match(ConstantStruct::get(StTy3, {UP, P}), m_Undef())); 1172 1173 EXPECT_FALSE(match(ConstantStruct::get(StTy, {U, Zero}), m_Undef())); 1174 EXPECT_FALSE(match(ConstantStruct::get(StTy, {Zero, U}), m_Undef())); 1175 EXPECT_FALSE(match(ConstantStruct::get(StTy, {P, Zero}), m_Undef())); 1176 EXPECT_FALSE(match(ConstantStruct::get(StTy, {Zero, P}), m_Undef())); 1177 1178 EXPECT_FALSE(match(ConstantStruct::get(StTy2, {Zero, UP}), m_Undef())); 1179 EXPECT_FALSE(match(ConstantStruct::get(StTy3, {UP, Zero}), m_Undef())); 1180 } 1181 1182 TEST_F(PatternMatchTest, VectorUndefInt) { 1183 Type *ScalarTy = IRB.getInt8Ty(); 1184 Type *VectorTy = FixedVectorType::get(ScalarTy, 4); 1185 Constant *ScalarUndef = UndefValue::get(ScalarTy); 1186 Constant *VectorUndef = UndefValue::get(VectorTy); 1187 Constant *ScalarPoison = PoisonValue::get(ScalarTy); 1188 Constant *VectorPoison = PoisonValue::get(VectorTy); 1189 Constant *ScalarZero = Constant::getNullValue(ScalarTy); 1190 Constant *VectorZero = Constant::getNullValue(VectorTy); 1191 1192 SmallVector<Constant *, 4> Elems; 1193 Elems.push_back(ScalarUndef); 1194 Elems.push_back(ScalarZero); 1195 Elems.push_back(ScalarUndef); 1196 Elems.push_back(ScalarZero); 1197 Constant *VectorZeroUndef = ConstantVector::get(Elems); 1198 1199 SmallVector<Constant *, 4> Elems2; 1200 Elems2.push_back(ScalarPoison); 1201 Elems2.push_back(ScalarZero); 1202 Elems2.push_back(ScalarPoison); 1203 Elems2.push_back(ScalarZero); 1204 Constant *VectorZeroPoison = ConstantVector::get(Elems2); 1205 1206 EXPECT_TRUE(match(ScalarUndef, m_Undef())); 1207 EXPECT_TRUE(match(ScalarPoison, m_Undef())); 1208 EXPECT_TRUE(match(VectorUndef, m_Undef())); 1209 EXPECT_TRUE(match(VectorPoison, m_Undef())); 1210 EXPECT_FALSE(match(ScalarZero, m_Undef())); 1211 EXPECT_FALSE(match(VectorZero, m_Undef())); 1212 EXPECT_FALSE(match(VectorZeroUndef, m_Undef())); 1213 EXPECT_FALSE(match(VectorZeroPoison, m_Undef())); 1214 1215 EXPECT_FALSE(match(ScalarUndef, m_Zero())); 1216 EXPECT_FALSE(match(ScalarPoison, m_Zero())); 1217 EXPECT_FALSE(match(VectorUndef, m_Zero())); 1218 EXPECT_FALSE(match(VectorPoison, m_Zero())); 1219 EXPECT_FALSE(match(VectorZeroUndef, m_Zero())); 1220 EXPECT_TRUE(match(ScalarZero, m_Zero())); 1221 EXPECT_TRUE(match(VectorZero, m_Zero())); 1222 EXPECT_TRUE(match(VectorZeroPoison, m_Zero())); 1223 1224 const APInt *C; 1225 // Regardless of whether undefs are allowed, 1226 // a fully undef constant does not match. 1227 EXPECT_FALSE(match(ScalarUndef, m_APInt(C))); 1228 EXPECT_FALSE(match(ScalarUndef, m_APIntForbidUndef(C))); 1229 EXPECT_FALSE(match(ScalarUndef, m_APIntAllowUndef(C))); 1230 EXPECT_FALSE(match(VectorUndef, m_APInt(C))); 1231 EXPECT_FALSE(match(VectorUndef, m_APIntForbidUndef(C))); 1232 EXPECT_FALSE(match(VectorUndef, m_APIntAllowUndef(C))); 1233 1234 // We can always match simple constants and simple splats. 1235 C = nullptr; 1236 EXPECT_TRUE(match(ScalarZero, m_APInt(C))); 1237 EXPECT_TRUE(C->isZero()); 1238 C = nullptr; 1239 EXPECT_TRUE(match(ScalarZero, m_APIntForbidUndef(C))); 1240 EXPECT_TRUE(C->isZero()); 1241 C = nullptr; 1242 EXPECT_TRUE(match(ScalarZero, m_APIntAllowUndef(C))); 1243 EXPECT_TRUE(C->isZero()); 1244 C = nullptr; 1245 EXPECT_TRUE(match(VectorZero, m_APInt(C))); 1246 EXPECT_TRUE(C->isZero()); 1247 C = nullptr; 1248 EXPECT_TRUE(match(VectorZero, m_APIntForbidUndef(C))); 1249 EXPECT_TRUE(C->isZero()); 1250 C = nullptr; 1251 EXPECT_TRUE(match(VectorZero, m_APIntAllowUndef(C))); 1252 EXPECT_TRUE(C->isZero()); 1253 1254 // Whether splats with undef can be matched depends on the matcher. 1255 EXPECT_FALSE(match(VectorZeroUndef, m_APInt(C))); 1256 EXPECT_FALSE(match(VectorZeroUndef, m_APIntForbidUndef(C))); 1257 C = nullptr; 1258 EXPECT_TRUE(match(VectorZeroUndef, m_APIntAllowUndef(C))); 1259 EXPECT_TRUE(C->isZero()); 1260 } 1261 1262 TEST_F(PatternMatchTest, VectorUndefFloat) { 1263 Type *ScalarTy = IRB.getFloatTy(); 1264 Type *VectorTy = FixedVectorType::get(ScalarTy, 4); 1265 Constant *ScalarUndef = UndefValue::get(ScalarTy); 1266 Constant *VectorUndef = UndefValue::get(VectorTy); 1267 Constant *ScalarPoison = PoisonValue::get(ScalarTy); 1268 Constant *VectorPoison = PoisonValue::get(VectorTy); 1269 Constant *ScalarZero = Constant::getNullValue(ScalarTy); 1270 Constant *VectorZero = Constant::getNullValue(VectorTy); 1271 Constant *ScalarPosInf = ConstantFP::getInfinity(ScalarTy, false); 1272 Constant *ScalarNegInf = ConstantFP::getInfinity(ScalarTy, true); 1273 Constant *ScalarNaN = ConstantFP::getNaN(ScalarTy, true); 1274 1275 Constant *VectorZeroUndef = 1276 ConstantVector::get({ScalarUndef, ScalarZero, ScalarUndef, ScalarZero}); 1277 1278 Constant *VectorZeroPoison = 1279 ConstantVector::get({ScalarPoison, ScalarZero, ScalarPoison, ScalarZero}); 1280 1281 Constant *VectorInfUndef = ConstantVector::get( 1282 {ScalarPosInf, ScalarNegInf, ScalarUndef, ScalarPosInf}); 1283 1284 Constant *VectorInfPoison = ConstantVector::get( 1285 {ScalarPosInf, ScalarNegInf, ScalarPoison, ScalarPosInf}); 1286 1287 Constant *VectorNaNUndef = 1288 ConstantVector::get({ScalarUndef, ScalarNaN, ScalarNaN, ScalarNaN}); 1289 1290 Constant *VectorNaNPoison = 1291 ConstantVector::get({ScalarPoison, ScalarNaN, ScalarNaN, ScalarNaN}); 1292 1293 EXPECT_TRUE(match(ScalarUndef, m_Undef())); 1294 EXPECT_TRUE(match(VectorUndef, m_Undef())); 1295 EXPECT_TRUE(match(ScalarPoison, m_Undef())); 1296 EXPECT_TRUE(match(VectorPoison, m_Undef())); 1297 EXPECT_FALSE(match(ScalarZero, m_Undef())); 1298 EXPECT_FALSE(match(VectorZero, m_Undef())); 1299 EXPECT_FALSE(match(VectorZeroUndef, m_Undef())); 1300 EXPECT_FALSE(match(VectorInfUndef, m_Undef())); 1301 EXPECT_FALSE(match(VectorNaNUndef, m_Undef())); 1302 EXPECT_FALSE(match(VectorZeroPoison, m_Undef())); 1303 EXPECT_FALSE(match(VectorInfPoison, m_Undef())); 1304 EXPECT_FALSE(match(VectorNaNPoison, m_Undef())); 1305 1306 EXPECT_FALSE(match(ScalarUndef, m_AnyZeroFP())); 1307 EXPECT_FALSE(match(VectorUndef, m_AnyZeroFP())); 1308 EXPECT_FALSE(match(ScalarPoison, m_AnyZeroFP())); 1309 EXPECT_FALSE(match(VectorPoison, m_AnyZeroFP())); 1310 EXPECT_TRUE(match(ScalarZero, m_AnyZeroFP())); 1311 EXPECT_TRUE(match(VectorZero, m_AnyZeroFP())); 1312 EXPECT_FALSE(match(VectorZeroUndef, m_AnyZeroFP())); 1313 EXPECT_FALSE(match(VectorInfUndef, m_AnyZeroFP())); 1314 EXPECT_FALSE(match(VectorNaNUndef, m_AnyZeroFP())); 1315 EXPECT_TRUE(match(VectorZeroPoison, m_AnyZeroFP())); 1316 EXPECT_FALSE(match(VectorInfPoison, m_AnyZeroFP())); 1317 EXPECT_FALSE(match(VectorNaNPoison, m_AnyZeroFP())); 1318 1319 EXPECT_FALSE(match(ScalarUndef, m_NaN())); 1320 EXPECT_FALSE(match(VectorUndef, m_NaN())); 1321 EXPECT_FALSE(match(VectorZeroUndef, m_NaN())); 1322 EXPECT_FALSE(match(ScalarPoison, m_NaN())); 1323 EXPECT_FALSE(match(VectorPoison, m_NaN())); 1324 EXPECT_FALSE(match(VectorZeroPoison, m_NaN())); 1325 EXPECT_FALSE(match(ScalarPosInf, m_NaN())); 1326 EXPECT_FALSE(match(ScalarNegInf, m_NaN())); 1327 EXPECT_TRUE(match(ScalarNaN, m_NaN())); 1328 EXPECT_FALSE(match(VectorInfUndef, m_NaN())); 1329 EXPECT_FALSE(match(VectorNaNUndef, m_NaN())); 1330 EXPECT_FALSE(match(VectorInfPoison, m_NaN())); 1331 EXPECT_TRUE(match(VectorNaNPoison, m_NaN())); 1332 1333 EXPECT_FALSE(match(ScalarUndef, m_NonNaN())); 1334 EXPECT_FALSE(match(VectorUndef, m_NonNaN())); 1335 EXPECT_FALSE(match(VectorZeroUndef, m_NonNaN())); 1336 EXPECT_FALSE(match(ScalarPoison, m_NonNaN())); 1337 EXPECT_FALSE(match(VectorPoison, m_NonNaN())); 1338 EXPECT_TRUE(match(VectorZeroPoison, m_NonNaN())); 1339 EXPECT_TRUE(match(ScalarPosInf, m_NonNaN())); 1340 EXPECT_TRUE(match(ScalarNegInf, m_NonNaN())); 1341 EXPECT_FALSE(match(ScalarNaN, m_NonNaN())); 1342 EXPECT_FALSE(match(VectorInfUndef, m_NonNaN())); 1343 EXPECT_FALSE(match(VectorNaNUndef, m_NonNaN())); 1344 EXPECT_TRUE(match(VectorInfPoison, m_NonNaN())); 1345 EXPECT_FALSE(match(VectorNaNPoison, m_NonNaN())); 1346 1347 EXPECT_FALSE(match(ScalarUndef, m_Inf())); 1348 EXPECT_FALSE(match(VectorUndef, m_Inf())); 1349 EXPECT_FALSE(match(VectorZeroUndef, m_Inf())); 1350 EXPECT_FALSE(match(ScalarPoison, m_Inf())); 1351 EXPECT_FALSE(match(VectorPoison, m_Inf())); 1352 EXPECT_FALSE(match(VectorZeroPoison, m_Inf())); 1353 EXPECT_TRUE(match(ScalarPosInf, m_Inf())); 1354 EXPECT_TRUE(match(ScalarNegInf, m_Inf())); 1355 EXPECT_FALSE(match(ScalarNaN, m_Inf())); 1356 EXPECT_FALSE(match(VectorInfUndef, m_Inf())); 1357 EXPECT_FALSE(match(VectorNaNUndef, m_Inf())); 1358 EXPECT_TRUE(match(VectorInfPoison, m_Inf())); 1359 EXPECT_FALSE(match(VectorNaNPoison, m_Inf())); 1360 1361 EXPECT_FALSE(match(ScalarUndef, m_NonInf())); 1362 EXPECT_FALSE(match(VectorUndef, m_NonInf())); 1363 EXPECT_FALSE(match(VectorZeroUndef, m_NonInf())); 1364 EXPECT_FALSE(match(ScalarPoison, m_NonInf())); 1365 EXPECT_FALSE(match(VectorPoison, m_NonInf())); 1366 EXPECT_TRUE(match(VectorZeroPoison, m_NonInf())); 1367 EXPECT_FALSE(match(ScalarPosInf, m_NonInf())); 1368 EXPECT_FALSE(match(ScalarNegInf, m_NonInf())); 1369 EXPECT_TRUE(match(ScalarNaN, m_NonInf())); 1370 EXPECT_FALSE(match(VectorInfUndef, m_NonInf())); 1371 EXPECT_FALSE(match(VectorNaNUndef, m_NonInf())); 1372 EXPECT_FALSE(match(VectorInfPoison, m_NonInf())); 1373 EXPECT_TRUE(match(VectorNaNPoison, m_NonInf())); 1374 1375 EXPECT_FALSE(match(ScalarUndef, m_Finite())); 1376 EXPECT_FALSE(match(VectorUndef, m_Finite())); 1377 EXPECT_FALSE(match(VectorZeroUndef, m_Finite())); 1378 EXPECT_FALSE(match(ScalarPoison, m_Finite())); 1379 EXPECT_FALSE(match(VectorPoison, m_Finite())); 1380 EXPECT_TRUE(match(VectorZeroPoison, m_Finite())); 1381 EXPECT_FALSE(match(ScalarPosInf, m_Finite())); 1382 EXPECT_FALSE(match(ScalarNegInf, m_Finite())); 1383 EXPECT_FALSE(match(ScalarNaN, m_Finite())); 1384 EXPECT_FALSE(match(VectorInfUndef, m_Finite())); 1385 EXPECT_FALSE(match(VectorNaNUndef, m_Finite())); 1386 EXPECT_FALSE(match(VectorInfPoison, m_Finite())); 1387 EXPECT_FALSE(match(VectorNaNPoison, m_Finite())); 1388 1389 const APFloat *C; 1390 // Regardless of whether undefs are allowed, 1391 // a fully undef constant does not match. 1392 EXPECT_FALSE(match(ScalarUndef, m_APFloat(C))); 1393 EXPECT_FALSE(match(ScalarUndef, m_APFloatForbidUndef(C))); 1394 EXPECT_FALSE(match(ScalarUndef, m_APFloatAllowUndef(C))); 1395 EXPECT_FALSE(match(VectorUndef, m_APFloat(C))); 1396 EXPECT_FALSE(match(VectorUndef, m_APFloatForbidUndef(C))); 1397 EXPECT_FALSE(match(VectorUndef, m_APFloatAllowUndef(C))); 1398 1399 // We can always match simple constants and simple splats. 1400 C = nullptr; 1401 EXPECT_TRUE(match(ScalarZero, m_APFloat(C))); 1402 EXPECT_TRUE(C->isZero()); 1403 C = nullptr; 1404 EXPECT_TRUE(match(ScalarZero, m_APFloatForbidUndef(C))); 1405 EXPECT_TRUE(C->isZero()); 1406 C = nullptr; 1407 EXPECT_TRUE(match(ScalarZero, m_APFloatAllowUndef(C))); 1408 EXPECT_TRUE(C->isZero()); 1409 C = nullptr; 1410 EXPECT_TRUE(match(VectorZero, m_APFloat(C))); 1411 EXPECT_TRUE(C->isZero()); 1412 C = nullptr; 1413 EXPECT_TRUE(match(VectorZero, m_APFloatForbidUndef(C))); 1414 EXPECT_TRUE(C->isZero()); 1415 C = nullptr; 1416 EXPECT_TRUE(match(VectorZero, m_APFloatAllowUndef(C))); 1417 EXPECT_TRUE(C->isZero()); 1418 1419 // Whether splats with undef can be matched depends on the matcher. 1420 EXPECT_FALSE(match(VectorZeroUndef, m_APFloat(C))); 1421 EXPECT_FALSE(match(VectorZeroUndef, m_APFloatForbidUndef(C))); 1422 C = nullptr; 1423 EXPECT_TRUE(match(VectorZeroUndef, m_APFloatAllowUndef(C))); 1424 EXPECT_TRUE(C->isZero()); 1425 C = nullptr; 1426 EXPECT_TRUE(match(VectorZeroUndef, m_Finite(C))); 1427 EXPECT_TRUE(C->isZero()); 1428 } 1429 1430 TEST_F(PatternMatchTest, FloatingPointFNeg) { 1431 Type *FltTy = IRB.getFloatTy(); 1432 Value *One = ConstantFP::get(FltTy, 1.0); 1433 Value *Z = ConstantFP::get(FltTy, 0.0); 1434 Value *NZ = ConstantFP::get(FltTy, -0.0); 1435 Value *V = IRB.CreateFNeg(One); 1436 Value *V1 = IRB.CreateFSub(NZ, One); 1437 Value *V2 = IRB.CreateFSub(Z, One); 1438 Value *V3 = IRB.CreateFAdd(NZ, One); 1439 Value *Match; 1440 1441 // Test FNeg(1.0) 1442 EXPECT_TRUE(match(V, m_FNeg(m_Value(Match)))); 1443 EXPECT_EQ(One, Match); 1444 1445 // Test FSub(-0.0, 1.0) 1446 EXPECT_TRUE(match(V1, m_FNeg(m_Value(Match)))); 1447 EXPECT_EQ(One, Match); 1448 1449 // Test FSub(0.0, 1.0) 1450 EXPECT_FALSE(match(V2, m_FNeg(m_Value(Match)))); 1451 cast<Instruction>(V2)->setHasNoSignedZeros(true); 1452 EXPECT_TRUE(match(V2, m_FNeg(m_Value(Match)))); 1453 EXPECT_EQ(One, Match); 1454 1455 // Test FAdd(-0.0, 1.0) 1456 EXPECT_FALSE(match(V3, m_FNeg(m_Value(Match)))); 1457 } 1458 1459 TEST_F(PatternMatchTest, CondBranchTest) { 1460 BasicBlock *TrueBB = BasicBlock::Create(Ctx, "TrueBB", F); 1461 BasicBlock *FalseBB = BasicBlock::Create(Ctx, "FalseBB", F); 1462 Value *Br1 = IRB.CreateCondBr(IRB.getTrue(), TrueBB, FalseBB); 1463 1464 EXPECT_TRUE(match(Br1, m_Br(m_Value(), m_BasicBlock(), m_BasicBlock()))); 1465 1466 BasicBlock *A, *B; 1467 EXPECT_TRUE(match(Br1, m_Br(m_Value(), m_BasicBlock(A), m_BasicBlock(B)))); 1468 EXPECT_EQ(TrueBB, A); 1469 EXPECT_EQ(FalseBB, B); 1470 1471 EXPECT_FALSE( 1472 match(Br1, m_Br(m_Value(), m_SpecificBB(FalseBB), m_BasicBlock()))); 1473 EXPECT_FALSE( 1474 match(Br1, m_Br(m_Value(), m_BasicBlock(), m_SpecificBB(TrueBB)))); 1475 EXPECT_FALSE( 1476 match(Br1, m_Br(m_Value(), m_SpecificBB(FalseBB), m_BasicBlock(TrueBB)))); 1477 EXPECT_TRUE( 1478 match(Br1, m_Br(m_Value(), m_SpecificBB(TrueBB), m_BasicBlock(FalseBB)))); 1479 1480 // Check we can use m_Deferred with branches. 1481 EXPECT_FALSE(match(Br1, m_Br(m_Value(), m_BasicBlock(A), m_Deferred(A)))); 1482 Value *Br2 = IRB.CreateCondBr(IRB.getTrue(), TrueBB, TrueBB); 1483 A = nullptr; 1484 EXPECT_TRUE(match(Br2, m_Br(m_Value(), m_BasicBlock(A), m_Deferred(A)))); 1485 } 1486 1487 TEST_F(PatternMatchTest, WithOverflowInst) { 1488 Value *Add = IRB.CreateBinaryIntrinsic(Intrinsic::uadd_with_overflow, 1489 IRB.getInt32(0), IRB.getInt32(0)); 1490 Value *Add0 = IRB.CreateExtractValue(Add, 0); 1491 Value *Add1 = IRB.CreateExtractValue(Add, 1); 1492 1493 EXPECT_TRUE(match(Add0, m_ExtractValue<0>(m_Value()))); 1494 EXPECT_FALSE(match(Add0, m_ExtractValue<1>(m_Value()))); 1495 EXPECT_FALSE(match(Add1, m_ExtractValue<0>(m_Value()))); 1496 EXPECT_TRUE(match(Add1, m_ExtractValue<1>(m_Value()))); 1497 EXPECT_FALSE(match(Add, m_ExtractValue<1>(m_Value()))); 1498 EXPECT_FALSE(match(Add, m_ExtractValue<1>(m_Value()))); 1499 1500 WithOverflowInst *WOI; 1501 EXPECT_FALSE(match(Add0, m_WithOverflowInst(WOI))); 1502 EXPECT_FALSE(match(Add1, m_WithOverflowInst(WOI))); 1503 EXPECT_TRUE(match(Add, m_WithOverflowInst(WOI))); 1504 1505 EXPECT_TRUE(match(Add0, m_ExtractValue<0>(m_WithOverflowInst(WOI)))); 1506 EXPECT_EQ(Add, WOI); 1507 EXPECT_TRUE(match(Add1, m_ExtractValue<1>(m_WithOverflowInst(WOI)))); 1508 EXPECT_EQ(Add, WOI); 1509 } 1510 1511 TEST_F(PatternMatchTest, MinMaxIntrinsics) { 1512 Type *Ty = IRB.getInt32Ty(); 1513 Value *L = ConstantInt::get(Ty, 1); 1514 Value *R = ConstantInt::get(Ty, 2); 1515 Value *MatchL, *MatchR; 1516 1517 // Check for intrinsic ID match and capture of operands. 1518 EXPECT_TRUE(m_SMax(m_Value(MatchL), m_Value(MatchR)) 1519 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smax, L, R))); 1520 EXPECT_EQ(L, MatchL); 1521 EXPECT_EQ(R, MatchR); 1522 1523 EXPECT_TRUE(m_SMin(m_Value(MatchL), m_Value(MatchR)) 1524 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smin, L, R))); 1525 EXPECT_EQ(L, MatchL); 1526 EXPECT_EQ(R, MatchR); 1527 1528 EXPECT_TRUE(m_UMax(m_Value(MatchL), m_Value(MatchR)) 1529 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umax, L, R))); 1530 EXPECT_EQ(L, MatchL); 1531 EXPECT_EQ(R, MatchR); 1532 1533 EXPECT_TRUE(m_UMin(m_Value(MatchL), m_Value(MatchR)) 1534 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umin, L, R))); 1535 EXPECT_EQ(L, MatchL); 1536 EXPECT_EQ(R, MatchR); 1537 1538 // Check for intrinsic ID mismatch. 1539 EXPECT_FALSE(m_SMax(m_Value(MatchL), m_Value(MatchR)) 1540 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smin, L, R))); 1541 EXPECT_FALSE(m_SMin(m_Value(MatchL), m_Value(MatchR)) 1542 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umax, L, R))); 1543 EXPECT_FALSE(m_UMax(m_Value(MatchL), m_Value(MatchR)) 1544 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umin, L, R))); 1545 EXPECT_FALSE(m_UMin(m_Value(MatchL), m_Value(MatchR)) 1546 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smax, L, R))); 1547 } 1548 1549 TEST_F(PatternMatchTest, IntrinsicMatcher) { 1550 Value *Name = IRB.CreateAlloca(IRB.getInt8Ty()); 1551 Value *Hash = IRB.getInt64(0); 1552 Value *Num = IRB.getInt32(1); 1553 Value *Index = IRB.getInt32(2); 1554 Value *Step = IRB.getInt64(3); 1555 1556 Value *Ops[] = {Name, Hash, Num, Index, Step}; 1557 Module *M = BB->getParent()->getParent(); 1558 Function *TheFn = 1559 Intrinsic::getDeclaration(M, Intrinsic::instrprof_increment_step); 1560 1561 Value *Intrinsic5 = CallInst::Create(TheFn, Ops, "", BB); 1562 1563 // Match without capturing. 1564 EXPECT_TRUE(match( 1565 Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1566 m_Value(), m_Value(), m_Value(), m_Value(), m_Value()))); 1567 EXPECT_FALSE(match( 1568 Intrinsic5, m_Intrinsic<Intrinsic::memmove>( 1569 m_Value(), m_Value(), m_Value(), m_Value(), m_Value()))); 1570 1571 // Match with capturing. 1572 Value *Arg1 = nullptr; 1573 Value *Arg2 = nullptr; 1574 Value *Arg3 = nullptr; 1575 Value *Arg4 = nullptr; 1576 Value *Arg5 = nullptr; 1577 EXPECT_TRUE( 1578 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1579 m_Value(Arg1), m_Value(Arg2), m_Value(Arg3), 1580 m_Value(Arg4), m_Value(Arg5)))); 1581 EXPECT_EQ(Arg1, Name); 1582 EXPECT_EQ(Arg2, Hash); 1583 EXPECT_EQ(Arg3, Num); 1584 EXPECT_EQ(Arg4, Index); 1585 EXPECT_EQ(Arg5, Step); 1586 1587 // Match specific second argument. 1588 EXPECT_TRUE( 1589 match(Intrinsic5, 1590 m_Intrinsic<Intrinsic::instrprof_increment_step>( 1591 m_Value(), m_SpecificInt(0), m_Value(), m_Value(), m_Value()))); 1592 EXPECT_FALSE( 1593 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1594 m_Value(), m_SpecificInt(10), m_Value(), m_Value(), 1595 m_Value()))); 1596 1597 // Match specific third argument. 1598 EXPECT_TRUE( 1599 match(Intrinsic5, 1600 m_Intrinsic<Intrinsic::instrprof_increment_step>( 1601 m_Value(), m_Value(), m_SpecificInt(1), m_Value(), m_Value()))); 1602 EXPECT_FALSE( 1603 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1604 m_Value(), m_Value(), m_SpecificInt(10), m_Value(), 1605 m_Value()))); 1606 1607 // Match specific fourth argument. 1608 EXPECT_TRUE( 1609 match(Intrinsic5, 1610 m_Intrinsic<Intrinsic::instrprof_increment_step>( 1611 m_Value(), m_Value(), m_Value(), m_SpecificInt(2), m_Value()))); 1612 EXPECT_FALSE( 1613 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1614 m_Value(), m_Value(), m_Value(), m_SpecificInt(10), 1615 m_Value()))); 1616 1617 // Match specific fifth argument. 1618 EXPECT_TRUE( 1619 match(Intrinsic5, 1620 m_Intrinsic<Intrinsic::instrprof_increment_step>( 1621 m_Value(), m_Value(), m_Value(), m_Value(), m_SpecificInt(3)))); 1622 EXPECT_FALSE( 1623 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1624 m_Value(), m_Value(), m_Value(), m_Value(), 1625 m_SpecificInt(10)))); 1626 } 1627 1628 namespace { 1629 1630 struct is_unsigned_zero_pred { 1631 bool isValue(const APInt &C) { return C.isZero(); } 1632 }; 1633 1634 struct is_float_zero_pred { 1635 bool isValue(const APFloat &C) { return C.isZero(); } 1636 }; 1637 1638 template <typename T> struct always_true_pred { 1639 bool isValue(const T &) { return true; } 1640 }; 1641 1642 template <typename T> struct always_false_pred { 1643 bool isValue(const T &) { return false; } 1644 }; 1645 1646 struct is_unsigned_max_pred { 1647 bool isValue(const APInt &C) { return C.isMaxValue(); } 1648 }; 1649 1650 struct is_float_nan_pred { 1651 bool isValue(const APFloat &C) { return C.isNaN(); } 1652 }; 1653 1654 } // namespace 1655 1656 TEST_F(PatternMatchTest, ConstantPredicateType) { 1657 1658 // Scalar integer 1659 APInt U32Max = APInt::getAllOnes(32); 1660 APInt U32Zero = APInt::getZero(32); 1661 APInt U32DeadBeef(32, 0xDEADBEEF); 1662 1663 Type *U32Ty = Type::getInt32Ty(Ctx); 1664 1665 Constant *CU32Max = Constant::getIntegerValue(U32Ty, U32Max); 1666 Constant *CU32Zero = Constant::getIntegerValue(U32Ty, U32Zero); 1667 Constant *CU32DeadBeef = Constant::getIntegerValue(U32Ty, U32DeadBeef); 1668 1669 EXPECT_TRUE(match(CU32Max, cst_pred_ty<is_unsigned_max_pred>())); 1670 EXPECT_FALSE(match(CU32Max, cst_pred_ty<is_unsigned_zero_pred>())); 1671 EXPECT_TRUE(match(CU32Max, cst_pred_ty<always_true_pred<APInt>>())); 1672 EXPECT_FALSE(match(CU32Max, cst_pred_ty<always_false_pred<APInt>>())); 1673 1674 EXPECT_FALSE(match(CU32Zero, cst_pred_ty<is_unsigned_max_pred>())); 1675 EXPECT_TRUE(match(CU32Zero, cst_pred_ty<is_unsigned_zero_pred>())); 1676 EXPECT_TRUE(match(CU32Zero, cst_pred_ty<always_true_pred<APInt>>())); 1677 EXPECT_FALSE(match(CU32Zero, cst_pred_ty<always_false_pred<APInt>>())); 1678 1679 EXPECT_FALSE(match(CU32DeadBeef, cst_pred_ty<is_unsigned_max_pred>())); 1680 EXPECT_FALSE(match(CU32DeadBeef, cst_pred_ty<is_unsigned_zero_pred>())); 1681 EXPECT_TRUE(match(CU32DeadBeef, cst_pred_ty<always_true_pred<APInt>>())); 1682 EXPECT_FALSE(match(CU32DeadBeef, cst_pred_ty<always_false_pred<APInt>>())); 1683 1684 // Scalar float 1685 APFloat F32NaN = APFloat::getNaN(APFloat::IEEEsingle()); 1686 APFloat F32Zero = APFloat::getZero(APFloat::IEEEsingle()); 1687 APFloat F32Pi(3.14f); 1688 1689 Type *F32Ty = Type::getFloatTy(Ctx); 1690 1691 Constant *CF32NaN = ConstantFP::get(F32Ty, F32NaN); 1692 Constant *CF32Zero = ConstantFP::get(F32Ty, F32Zero); 1693 Constant *CF32Pi = ConstantFP::get(F32Ty, F32Pi); 1694 1695 EXPECT_TRUE(match(CF32NaN, cstfp_pred_ty<is_float_nan_pred>())); 1696 EXPECT_FALSE(match(CF32NaN, cstfp_pred_ty<is_float_zero_pred>())); 1697 EXPECT_TRUE(match(CF32NaN, cstfp_pred_ty<always_true_pred<APFloat>>())); 1698 EXPECT_FALSE(match(CF32NaN, cstfp_pred_ty<always_false_pred<APFloat>>())); 1699 1700 EXPECT_FALSE(match(CF32Zero, cstfp_pred_ty<is_float_nan_pred>())); 1701 EXPECT_TRUE(match(CF32Zero, cstfp_pred_ty<is_float_zero_pred>())); 1702 EXPECT_TRUE(match(CF32Zero, cstfp_pred_ty<always_true_pred<APFloat>>())); 1703 EXPECT_FALSE(match(CF32Zero, cstfp_pred_ty<always_false_pred<APFloat>>())); 1704 1705 EXPECT_FALSE(match(CF32Pi, cstfp_pred_ty<is_float_nan_pred>())); 1706 EXPECT_FALSE(match(CF32Pi, cstfp_pred_ty<is_float_zero_pred>())); 1707 EXPECT_TRUE(match(CF32Pi, cstfp_pred_ty<always_true_pred<APFloat>>())); 1708 EXPECT_FALSE(match(CF32Pi, cstfp_pred_ty<always_false_pred<APFloat>>())); 1709 1710 auto FixedEC = ElementCount::getFixed(4); 1711 auto ScalableEC = ElementCount::getScalable(4); 1712 1713 // Vector splat 1714 1715 for (auto EC : {FixedEC, ScalableEC}) { 1716 // integer 1717 1718 Constant *CSplatU32Max = ConstantVector::getSplat(EC, CU32Max); 1719 Constant *CSplatU32Zero = ConstantVector::getSplat(EC, CU32Zero); 1720 Constant *CSplatU32DeadBeef = ConstantVector::getSplat(EC, CU32DeadBeef); 1721 1722 EXPECT_TRUE(match(CSplatU32Max, cst_pred_ty<is_unsigned_max_pred>())); 1723 EXPECT_FALSE(match(CSplatU32Max, cst_pred_ty<is_unsigned_zero_pred>())); 1724 EXPECT_TRUE(match(CSplatU32Max, cst_pred_ty<always_true_pred<APInt>>())); 1725 EXPECT_FALSE(match(CSplatU32Max, cst_pred_ty<always_false_pred<APInt>>())); 1726 1727 EXPECT_FALSE(match(CSplatU32Zero, cst_pred_ty<is_unsigned_max_pred>())); 1728 EXPECT_TRUE(match(CSplatU32Zero, cst_pred_ty<is_unsigned_zero_pred>())); 1729 EXPECT_TRUE(match(CSplatU32Zero, cst_pred_ty<always_true_pred<APInt>>())); 1730 EXPECT_FALSE(match(CSplatU32Zero, cst_pred_ty<always_false_pred<APInt>>())); 1731 1732 EXPECT_FALSE(match(CSplatU32DeadBeef, cst_pred_ty<is_unsigned_max_pred>())); 1733 EXPECT_FALSE( 1734 match(CSplatU32DeadBeef, cst_pred_ty<is_unsigned_zero_pred>())); 1735 EXPECT_TRUE( 1736 match(CSplatU32DeadBeef, cst_pred_ty<always_true_pred<APInt>>())); 1737 EXPECT_FALSE( 1738 match(CSplatU32DeadBeef, cst_pred_ty<always_false_pred<APInt>>())); 1739 1740 // float 1741 1742 Constant *CSplatF32NaN = ConstantVector::getSplat(EC, CF32NaN); 1743 Constant *CSplatF32Zero = ConstantVector::getSplat(EC, CF32Zero); 1744 Constant *CSplatF32Pi = ConstantVector::getSplat(EC, CF32Pi); 1745 1746 EXPECT_TRUE(match(CSplatF32NaN, cstfp_pred_ty<is_float_nan_pred>())); 1747 EXPECT_FALSE(match(CSplatF32NaN, cstfp_pred_ty<is_float_zero_pred>())); 1748 EXPECT_TRUE( 1749 match(CSplatF32NaN, cstfp_pred_ty<always_true_pred<APFloat>>())); 1750 EXPECT_FALSE( 1751 match(CSplatF32NaN, cstfp_pred_ty<always_false_pred<APFloat>>())); 1752 1753 EXPECT_FALSE(match(CSplatF32Zero, cstfp_pred_ty<is_float_nan_pred>())); 1754 EXPECT_TRUE(match(CSplatF32Zero, cstfp_pred_ty<is_float_zero_pred>())); 1755 EXPECT_TRUE( 1756 match(CSplatF32Zero, cstfp_pred_ty<always_true_pred<APFloat>>())); 1757 EXPECT_FALSE( 1758 match(CSplatF32Zero, cstfp_pred_ty<always_false_pred<APFloat>>())); 1759 1760 EXPECT_FALSE(match(CSplatF32Pi, cstfp_pred_ty<is_float_nan_pred>())); 1761 EXPECT_FALSE(match(CSplatF32Pi, cstfp_pred_ty<is_float_zero_pred>())); 1762 EXPECT_TRUE(match(CSplatF32Pi, cstfp_pred_ty<always_true_pred<APFloat>>())); 1763 EXPECT_FALSE( 1764 match(CSplatF32Pi, cstfp_pred_ty<always_false_pred<APFloat>>())); 1765 } 1766 1767 // Int arbitrary vector 1768 1769 Constant *CMixedU32 = ConstantVector::get({CU32Max, CU32Zero, CU32DeadBeef}); 1770 Constant *CU32Undef = UndefValue::get(U32Ty); 1771 Constant *CU32Poison = PoisonValue::get(U32Ty); 1772 Constant *CU32MaxWithUndef = 1773 ConstantVector::get({CU32Undef, CU32Max, CU32Undef}); 1774 Constant *CU32MaxWithPoison = 1775 ConstantVector::get({CU32Poison, CU32Max, CU32Poison}); 1776 1777 EXPECT_FALSE(match(CMixedU32, cst_pred_ty<is_unsigned_max_pred>())); 1778 EXPECT_FALSE(match(CMixedU32, cst_pred_ty<is_unsigned_zero_pred>())); 1779 EXPECT_TRUE(match(CMixedU32, cst_pred_ty<always_true_pred<APInt>>())); 1780 EXPECT_FALSE(match(CMixedU32, cst_pred_ty<always_false_pred<APInt>>())); 1781 1782 EXPECT_FALSE(match(CU32MaxWithUndef, cst_pred_ty<is_unsigned_max_pred>())); 1783 EXPECT_FALSE(match(CU32MaxWithUndef, cst_pred_ty<is_unsigned_zero_pred>())); 1784 EXPECT_FALSE(match(CU32MaxWithUndef, cst_pred_ty<always_true_pred<APInt>>())); 1785 EXPECT_FALSE( 1786 match(CU32MaxWithUndef, cst_pred_ty<always_false_pred<APInt>>())); 1787 1788 EXPECT_TRUE(match(CU32MaxWithPoison, cst_pred_ty<is_unsigned_max_pred>())); 1789 EXPECT_FALSE(match(CU32MaxWithPoison, cst_pred_ty<is_unsigned_zero_pred>())); 1790 EXPECT_TRUE(match(CU32MaxWithPoison, cst_pred_ty<always_true_pred<APInt>>())); 1791 EXPECT_FALSE( 1792 match(CU32MaxWithPoison, cst_pred_ty<always_false_pred<APInt>>())); 1793 1794 // Float arbitrary vector 1795 1796 Constant *CMixedF32 = ConstantVector::get({CF32NaN, CF32Zero, CF32Pi}); 1797 Constant *CF32Undef = UndefValue::get(F32Ty); 1798 Constant *CF32Poison = PoisonValue::get(F32Ty); 1799 Constant *CF32NaNWithUndef = 1800 ConstantVector::get({CF32Undef, CF32NaN, CF32Undef}); 1801 Constant *CF32NaNWithPoison = 1802 ConstantVector::get({CF32Poison, CF32NaN, CF32Poison}); 1803 1804 EXPECT_FALSE(match(CMixedF32, cstfp_pred_ty<is_float_nan_pred>())); 1805 EXPECT_FALSE(match(CMixedF32, cstfp_pred_ty<is_float_zero_pred>())); 1806 EXPECT_TRUE(match(CMixedF32, cstfp_pred_ty<always_true_pred<APFloat>>())); 1807 EXPECT_FALSE(match(CMixedF32, cstfp_pred_ty<always_false_pred<APFloat>>())); 1808 1809 EXPECT_FALSE(match(CF32NaNWithUndef, cstfp_pred_ty<is_float_nan_pred>())); 1810 EXPECT_FALSE(match(CF32NaNWithUndef, cstfp_pred_ty<is_float_zero_pred>())); 1811 EXPECT_FALSE( 1812 match(CF32NaNWithUndef, cstfp_pred_ty<always_true_pred<APFloat>>())); 1813 EXPECT_FALSE( 1814 match(CF32NaNWithUndef, cstfp_pred_ty<always_false_pred<APFloat>>())); 1815 1816 EXPECT_TRUE(match(CF32NaNWithPoison, cstfp_pred_ty<is_float_nan_pred>())); 1817 EXPECT_FALSE(match(CF32NaNWithPoison, cstfp_pred_ty<is_float_zero_pred>())); 1818 EXPECT_TRUE( 1819 match(CF32NaNWithPoison, cstfp_pred_ty<always_true_pred<APFloat>>())); 1820 EXPECT_FALSE( 1821 match(CF32NaNWithPoison, cstfp_pred_ty<always_false_pred<APFloat>>())); 1822 } 1823 1824 TEST_F(PatternMatchTest, InsertValue) { 1825 Type *StructTy = StructType::create(IRB.getContext(), 1826 {IRB.getInt32Ty(), IRB.getInt64Ty()}); 1827 Value *Ins0 = 1828 IRB.CreateInsertValue(UndefValue::get(StructTy), IRB.getInt32(20), 0); 1829 Value *Ins1 = IRB.CreateInsertValue(Ins0, IRB.getInt64(90), 1); 1830 1831 EXPECT_TRUE(match(Ins0, m_InsertValue<0>(m_Value(), m_Value()))); 1832 EXPECT_FALSE(match(Ins0, m_InsertValue<1>(m_Value(), m_Value()))); 1833 EXPECT_FALSE(match(Ins1, m_InsertValue<0>(m_Value(), m_Value()))); 1834 EXPECT_TRUE(match(Ins1, m_InsertValue<1>(m_Value(), m_Value()))); 1835 1836 EXPECT_TRUE(match(Ins0, m_InsertValue<0>(m_Undef(), m_SpecificInt(20)))); 1837 EXPECT_FALSE(match(Ins0, m_InsertValue<0>(m_Undef(), m_SpecificInt(0)))); 1838 1839 EXPECT_TRUE( 1840 match(Ins1, m_InsertValue<1>(m_InsertValue<0>(m_Value(), m_Value()), 1841 m_SpecificInt(90)))); 1842 EXPECT_FALSE(match(IRB.getInt64(99), m_InsertValue<0>(m_Value(), m_Value()))); 1843 } 1844 1845 TEST_F(PatternMatchTest, LogicalSelects) { 1846 Value *Alloca = IRB.CreateAlloca(IRB.getInt1Ty()); 1847 Value *X = IRB.CreateLoad(IRB.getInt1Ty(), Alloca); 1848 Value *Y = IRB.CreateLoad(IRB.getInt1Ty(), Alloca); 1849 Constant *T = IRB.getInt1(true); 1850 Constant *F = IRB.getInt1(false); 1851 Value *And = IRB.CreateSelect(X, Y, F); 1852 Value *Or = IRB.CreateSelect(X, T, Y); 1853 1854 // Logical and: 1855 // Check basic no-capture logic - opcode and constant must match. 1856 EXPECT_TRUE(match(And, m_LogicalAnd(m_Value(), m_Value()))); 1857 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Value(), m_Value()))); 1858 EXPECT_FALSE(match(And, m_LogicalOr(m_Value(), m_Value()))); 1859 EXPECT_FALSE(match(And, m_c_LogicalOr(m_Value(), m_Value()))); 1860 1861 // Check with captures. 1862 EXPECT_TRUE(match(And, m_LogicalAnd(m_Specific(X), m_Value()))); 1863 EXPECT_TRUE(match(And, m_LogicalAnd(m_Value(), m_Specific(Y)))); 1864 EXPECT_TRUE(match(And, m_LogicalAnd(m_Specific(X), m_Specific(Y)))); 1865 1866 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(Y), m_Value()))); 1867 EXPECT_FALSE(match(And, m_LogicalAnd(m_Value(), m_Specific(X)))); 1868 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(Y), m_Specific(X)))); 1869 1870 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(X), m_Specific(X)))); 1871 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(Y), m_Specific(Y)))); 1872 1873 // Check captures for commutative match. 1874 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(X), m_Value()))); 1875 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Value(), m_Specific(Y)))); 1876 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(X), m_Specific(Y)))); 1877 1878 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(Y), m_Value()))); 1879 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Value(), m_Specific(X)))); 1880 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(Y), m_Specific(X)))); 1881 1882 EXPECT_FALSE(match(And, m_c_LogicalAnd(m_Specific(X), m_Specific(X)))); 1883 EXPECT_FALSE(match(And, m_c_LogicalAnd(m_Specific(Y), m_Specific(Y)))); 1884 1885 // Logical or: 1886 // Check basic no-capture logic - opcode and constant must match. 1887 EXPECT_TRUE(match(Or, m_LogicalOr(m_Value(), m_Value()))); 1888 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Value(), m_Value()))); 1889 EXPECT_FALSE(match(Or, m_LogicalAnd(m_Value(), m_Value()))); 1890 EXPECT_FALSE(match(Or, m_c_LogicalAnd(m_Value(), m_Value()))); 1891 1892 // Check with captures. 1893 EXPECT_TRUE(match(Or, m_LogicalOr(m_Specific(X), m_Value()))); 1894 EXPECT_TRUE(match(Or, m_LogicalOr(m_Value(), m_Specific(Y)))); 1895 EXPECT_TRUE(match(Or, m_LogicalOr(m_Specific(X), m_Specific(Y)))); 1896 1897 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(Y), m_Value()))); 1898 EXPECT_FALSE(match(Or, m_LogicalOr(m_Value(), m_Specific(X)))); 1899 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(Y), m_Specific(X)))); 1900 1901 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(X), m_Specific(X)))); 1902 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(Y), m_Specific(Y)))); 1903 1904 // Check captures for commutative match. 1905 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(X), m_Value()))); 1906 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Value(), m_Specific(Y)))); 1907 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(X), m_Specific(Y)))); 1908 1909 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(Y), m_Value()))); 1910 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Value(), m_Specific(X)))); 1911 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(Y), m_Specific(X)))); 1912 1913 EXPECT_FALSE(match(Or, m_c_LogicalOr(m_Specific(X), m_Specific(X)))); 1914 EXPECT_FALSE(match(Or, m_c_LogicalOr(m_Specific(Y), m_Specific(Y)))); 1915 } 1916 1917 TEST_F(PatternMatchTest, VectorLogicalSelects) { 1918 Type *i1 = IRB.getInt1Ty(); 1919 Type *v3i1 = FixedVectorType::get(i1, 3); 1920 1921 Value *Alloca = IRB.CreateAlloca(i1); 1922 Value *AllocaVec = IRB.CreateAlloca(v3i1); 1923 Value *Scalar = IRB.CreateLoad(i1, Alloca); 1924 Value *Vector = IRB.CreateLoad(v3i1, AllocaVec); 1925 Constant *F = Constant::getNullValue(v3i1); 1926 Constant *T = Constant::getAllOnesValue(v3i1); 1927 1928 // select <3 x i1> Vector, <3 x i1> Vector, <3 x i1> <i1 0, i1 0, i1 0> 1929 Value *VecAnd = IRB.CreateSelect(Vector, Vector, F); 1930 1931 // select i1 Scalar, <3 x i1> Vector, <3 x i1> <i1 0, i1 0, i1 0> 1932 Value *MixedTypeAnd = IRB.CreateSelect(Scalar, Vector, F); 1933 1934 // select <3 x i1> Vector, <3 x i1> <i1 1, i1 1, i1 1>, <3 x i1> Vector 1935 Value *VecOr = IRB.CreateSelect(Vector, T, Vector); 1936 1937 // select i1 Scalar, <3 x i1> <i1 1, i1 1, i1 1>, <3 x i1> Vector 1938 Value *MixedTypeOr = IRB.CreateSelect(Scalar, T, Vector); 1939 1940 // We allow matching a real vector logical select, 1941 // but not a scalar select of vector bools. 1942 EXPECT_TRUE(match(VecAnd, m_LogicalAnd(m_Value(), m_Value()))); 1943 EXPECT_FALSE(match(MixedTypeAnd, m_LogicalAnd(m_Value(), m_Value()))); 1944 EXPECT_TRUE(match(VecOr, m_LogicalOr(m_Value(), m_Value()))); 1945 EXPECT_FALSE(match(MixedTypeOr, m_LogicalOr(m_Value(), m_Value()))); 1946 } 1947 1948 TEST_F(PatternMatchTest, VScale) { 1949 DataLayout DL = M->getDataLayout(); 1950 1951 Type *VecTy = ScalableVectorType::get(IRB.getInt8Ty(), 1); 1952 Value *NullPtrVec = 1953 Constant::getNullValue(PointerType::getUnqual(VecTy->getContext())); 1954 Value *GEP = IRB.CreateGEP(VecTy, NullPtrVec, IRB.getInt64(1)); 1955 Value *PtrToInt = IRB.CreatePtrToInt(GEP, DL.getIntPtrType(GEP->getType())); 1956 EXPECT_TRUE(match(PtrToInt, m_VScale())); 1957 1958 Type *VecTy2 = ScalableVectorType::get(IRB.getInt8Ty(), 2); 1959 Value *NullPtrVec2 = 1960 Constant::getNullValue(PointerType::getUnqual(VecTy2->getContext())); 1961 Value *GEP2 = IRB.CreateGEP(VecTy, NullPtrVec2, IRB.getInt64(1)); 1962 Value *PtrToInt2 = 1963 IRB.CreatePtrToInt(GEP2, DL.getIntPtrType(GEP2->getType())); 1964 EXPECT_TRUE(match(PtrToInt2, m_VScale())); 1965 } 1966 1967 TEST_F(PatternMatchTest, NotForbidUndef) { 1968 Type *ScalarTy = IRB.getInt8Ty(); 1969 Type *VectorTy = FixedVectorType::get(ScalarTy, 3); 1970 Constant *ScalarUndef = UndefValue::get(ScalarTy); 1971 Constant *ScalarPoison = PoisonValue::get(ScalarTy); 1972 Constant *ScalarOnes = Constant::getAllOnesValue(ScalarTy); 1973 Constant *VectorZero = Constant::getNullValue(VectorTy); 1974 Constant *VectorOnes = Constant::getAllOnesValue(VectorTy); 1975 1976 SmallVector<Constant *, 3> MixedElemsUndef; 1977 MixedElemsUndef.push_back(ScalarOnes); 1978 MixedElemsUndef.push_back(ScalarOnes); 1979 MixedElemsUndef.push_back(ScalarUndef); 1980 Constant *VectorMixedUndef = ConstantVector::get(MixedElemsUndef); 1981 1982 SmallVector<Constant *, 3> MixedElemsPoison; 1983 MixedElemsPoison.push_back(ScalarOnes); 1984 MixedElemsPoison.push_back(ScalarOnes); 1985 MixedElemsPoison.push_back(ScalarPoison); 1986 Constant *VectorMixedPoison = ConstantVector::get(MixedElemsPoison); 1987 1988 Value *Not = IRB.CreateXor(VectorZero, VectorOnes); 1989 Value *X; 1990 EXPECT_TRUE(match(Not, m_Not(m_Value(X)))); 1991 EXPECT_TRUE(match(X, m_Zero())); 1992 1993 Value *NotCommute = IRB.CreateXor(VectorOnes, VectorZero); 1994 Value *Y; 1995 EXPECT_TRUE(match(NotCommute, m_Not(m_Value(Y)))); 1996 EXPECT_TRUE(match(Y, m_Zero())); 1997 1998 Value *NotWithUndefs = IRB.CreateXor(VectorZero, VectorMixedUndef); 1999 EXPECT_FALSE(match(NotWithUndefs, m_Not(m_Value()))); 2000 2001 Value *NotWithPoisons = IRB.CreateXor(VectorZero, VectorMixedPoison); 2002 EXPECT_TRUE(match(NotWithPoisons, m_Not(m_Value()))); 2003 2004 Value *NotWithUndefsCommute = IRB.CreateXor(VectorMixedUndef, VectorZero); 2005 EXPECT_FALSE(match(NotWithUndefsCommute, m_Not(m_Value()))); 2006 2007 Value *NotWithPoisonsCommute = IRB.CreateXor(VectorMixedPoison, VectorZero); 2008 EXPECT_TRUE(match(NotWithPoisonsCommute, m_Not(m_Value()))); 2009 } 2010 2011 template <typename T> struct MutableConstTest : PatternMatchTest { }; 2012 2013 typedef ::testing::Types<std::tuple<Value*, Instruction*>, 2014 std::tuple<const Value*, const Instruction *>> 2015 MutableConstTestTypes; 2016 TYPED_TEST_SUITE(MutableConstTest, MutableConstTestTypes, ); 2017 2018 TYPED_TEST(MutableConstTest, ICmp) { 2019 auto &IRB = PatternMatchTest::IRB; 2020 2021 typedef std::tuple_element_t<0, TypeParam> ValueType; 2022 typedef std::tuple_element_t<1, TypeParam> InstructionType; 2023 2024 Value *L = IRB.getInt32(1); 2025 Value *R = IRB.getInt32(2); 2026 ICmpInst::Predicate Pred = ICmpInst::ICMP_UGT; 2027 2028 ValueType MatchL; 2029 ValueType MatchR; 2030 ICmpInst::Predicate MatchPred; 2031 2032 EXPECT_TRUE(m_ICmp(MatchPred, m_Value(MatchL), m_Value(MatchR)) 2033 .match((InstructionType)IRB.CreateICmp(Pred, L, R))); 2034 EXPECT_EQ(L, MatchL); 2035 EXPECT_EQ(R, MatchR); 2036 } 2037 2038 TEST_F(PatternMatchTest, ConstExpr) { 2039 Constant *G = 2040 M->getOrInsertGlobal("dummy", PointerType::getUnqual(IRB.getInt32Ty())); 2041 Constant *S = ConstantExpr::getPtrToInt(G, IRB.getInt32Ty()); 2042 Type *VecTy = FixedVectorType::get(IRB.getInt32Ty(), 2); 2043 PoisonValue *P = PoisonValue::get(VecTy); 2044 Constant *V = ConstantExpr::getInsertElement(P, S, IRB.getInt32(0)); 2045 2046 // The match succeeds on a constant that is a constant expression itself 2047 // or a constant that contains a constant expression. 2048 EXPECT_TRUE(match(S, m_ConstantExpr())); 2049 EXPECT_TRUE(match(V, m_ConstantExpr())); 2050 } 2051 2052 TEST_F(PatternMatchTest, PtrAdd) { 2053 Type *PtrTy = PointerType::getUnqual(Ctx); 2054 Type *IdxTy = Type::getInt64Ty(Ctx); 2055 Constant *Null = Constant::getNullValue(PtrTy); 2056 Constant *Offset = ConstantInt::get(IdxTy, 42); 2057 Value *PtrAdd = IRB.CreatePtrAdd(Null, Offset); 2058 Value *OtherGEP = IRB.CreateGEP(IdxTy, Null, Offset); 2059 Value *PtrAddConst = 2060 ConstantExpr::getGetElementPtr(Type::getInt8Ty(Ctx), Null, Offset); 2061 2062 Value *A, *B; 2063 EXPECT_TRUE(match(PtrAdd, m_PtrAdd(m_Value(A), m_Value(B)))); 2064 EXPECT_EQ(A, Null); 2065 EXPECT_EQ(B, Offset); 2066 2067 EXPECT_TRUE(match(PtrAddConst, m_PtrAdd(m_Value(A), m_Value(B)))); 2068 EXPECT_EQ(A, Null); 2069 EXPECT_EQ(B, Offset); 2070 2071 EXPECT_FALSE(match(OtherGEP, m_PtrAdd(m_Value(A), m_Value(B)))); 2072 } 2073 2074 } // anonymous namespace. 2075