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, ZExtSExtSelf) { 498 LLVMContext &Ctx = IRB.getContext(); 499 500 Value *One32 = IRB.getInt32(1); 501 Value *One64Z = IRB.CreateZExt(One32, IntegerType::getInt64Ty(Ctx)); 502 Value *One64S = IRB.CreateSExt(One32, IntegerType::getInt64Ty(Ctx)); 503 504 EXPECT_TRUE(m_One().match(One32)); 505 EXPECT_FALSE(m_One().match(One64Z)); 506 EXPECT_FALSE(m_One().match(One64S)); 507 508 EXPECT_FALSE(m_ZExt(m_One()).match(One32)); 509 EXPECT_TRUE(m_ZExt(m_One()).match(One64Z)); 510 EXPECT_FALSE(m_ZExt(m_One()).match(One64S)); 511 512 EXPECT_FALSE(m_SExt(m_One()).match(One32)); 513 EXPECT_FALSE(m_SExt(m_One()).match(One64Z)); 514 EXPECT_TRUE(m_SExt(m_One()).match(One64S)); 515 516 EXPECT_TRUE(m_ZExtOrSelf(m_One()).match(One32)); 517 EXPECT_TRUE(m_ZExtOrSelf(m_One()).match(One64Z)); 518 EXPECT_FALSE(m_ZExtOrSelf(m_One()).match(One64S)); 519 520 EXPECT_TRUE(m_SExtOrSelf(m_One()).match(One32)); 521 EXPECT_FALSE(m_SExtOrSelf(m_One()).match(One64Z)); 522 EXPECT_TRUE(m_SExtOrSelf(m_One()).match(One64S)); 523 524 EXPECT_FALSE(m_ZExtOrSExt(m_One()).match(One32)); 525 EXPECT_TRUE(m_ZExtOrSExt(m_One()).match(One64Z)); 526 EXPECT_TRUE(m_ZExtOrSExt(m_One()).match(One64S)); 527 528 EXPECT_TRUE(m_ZExtOrSExtOrSelf(m_One()).match(One32)); 529 EXPECT_TRUE(m_ZExtOrSExtOrSelf(m_One()).match(One64Z)); 530 EXPECT_TRUE(m_ZExtOrSExtOrSelf(m_One()).match(One64S)); 531 } 532 533 TEST_F(PatternMatchTest, Power2) { 534 Value *C128 = IRB.getInt32(128); 535 Value *CNeg128 = ConstantExpr::getNeg(cast<Constant>(C128)); 536 537 EXPECT_TRUE(m_Power2().match(C128)); 538 EXPECT_FALSE(m_Power2().match(CNeg128)); 539 540 EXPECT_FALSE(m_NegatedPower2().match(C128)); 541 EXPECT_TRUE(m_NegatedPower2().match(CNeg128)); 542 543 Value *CIntMin = IRB.getInt64(APSInt::getSignedMinValue(64).getSExtValue()); 544 Value *CNegIntMin = ConstantExpr::getNeg(cast<Constant>(CIntMin)); 545 546 EXPECT_TRUE(m_Power2().match(CIntMin)); 547 EXPECT_TRUE(m_Power2().match(CNegIntMin)); 548 549 EXPECT_TRUE(m_NegatedPower2().match(CIntMin)); 550 EXPECT_TRUE(m_NegatedPower2().match(CNegIntMin)); 551 } 552 553 TEST_F(PatternMatchTest, CommutativeDeferredValue) { 554 Value *X = IRB.getInt32(1); 555 Value *Y = IRB.getInt32(2); 556 557 { 558 Value *tX = X; 559 EXPECT_TRUE(match(X, m_Deferred(tX))); 560 EXPECT_FALSE(match(Y, m_Deferred(tX))); 561 } 562 { 563 const Value *tX = X; 564 EXPECT_TRUE(match(X, m_Deferred(tX))); 565 EXPECT_FALSE(match(Y, m_Deferred(tX))); 566 } 567 { 568 Value *const tX = X; 569 EXPECT_TRUE(match(X, m_Deferred(tX))); 570 EXPECT_FALSE(match(Y, m_Deferred(tX))); 571 } 572 { 573 const Value *const tX = X; 574 EXPECT_TRUE(match(X, m_Deferred(tX))); 575 EXPECT_FALSE(match(Y, m_Deferred(tX))); 576 } 577 578 { 579 Value *tX = nullptr; 580 EXPECT_TRUE(match(IRB.CreateAnd(X, X), m_And(m_Value(tX), m_Deferred(tX)))); 581 EXPECT_EQ(tX, X); 582 } 583 { 584 Value *tX = nullptr; 585 EXPECT_FALSE( 586 match(IRB.CreateAnd(X, Y), m_c_And(m_Value(tX), m_Deferred(tX)))); 587 } 588 589 auto checkMatch = [X, Y](Value *Pattern) { 590 Value *tX = nullptr, *tY = nullptr; 591 EXPECT_TRUE(match( 592 Pattern, m_c_And(m_Value(tX), m_c_And(m_Deferred(tX), m_Value(tY))))); 593 EXPECT_EQ(tX, X); 594 EXPECT_EQ(tY, Y); 595 }; 596 597 checkMatch(IRB.CreateAnd(X, IRB.CreateAnd(X, Y))); 598 checkMatch(IRB.CreateAnd(X, IRB.CreateAnd(Y, X))); 599 checkMatch(IRB.CreateAnd(IRB.CreateAnd(X, Y), X)); 600 checkMatch(IRB.CreateAnd(IRB.CreateAnd(Y, X), X)); 601 } 602 603 TEST_F(PatternMatchTest, FloatingPointOrderedMin) { 604 Type *FltTy = IRB.getFloatTy(); 605 Value *L = ConstantFP::get(FltTy, 1.0); 606 Value *R = ConstantFP::get(FltTy, 2.0); 607 Value *MatchL, *MatchR; 608 609 // Test OLT. 610 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 611 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), L, R))); 612 EXPECT_EQ(L, MatchL); 613 EXPECT_EQ(R, MatchR); 614 615 // Test OLE. 616 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 617 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), L, R))); 618 EXPECT_EQ(L, MatchL); 619 EXPECT_EQ(R, MatchR); 620 621 // Test no match on OGE. 622 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 623 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), L, R))); 624 625 // Test no match on OGT. 626 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 627 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), L, R))); 628 629 // Test inverted selects. Note, that this "inverts" the ordering, e.g.: 630 // %cmp = fcmp oge L, R 631 // %min = select %cmp R, L 632 // Given L == NaN 633 // the above is expanded to %cmp == false ==> %min = L 634 // which is true for UnordFMin, not OrdFMin, so test that: 635 636 // [OU]GE with inverted select. 637 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 638 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), R, L))); 639 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 640 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), R, L))); 641 EXPECT_EQ(L, MatchL); 642 EXPECT_EQ(R, MatchR); 643 644 // [OU]GT with inverted select. 645 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 646 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), R, L))); 647 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR)) 648 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), R, L))); 649 EXPECT_EQ(L, MatchL); 650 EXPECT_EQ(R, MatchR); 651 } 652 653 TEST_F(PatternMatchTest, FloatingPointOrderedMax) { 654 Type *FltTy = IRB.getFloatTy(); 655 Value *L = ConstantFP::get(FltTy, 1.0); 656 Value *R = ConstantFP::get(FltTy, 2.0); 657 Value *MatchL, *MatchR; 658 659 // Test OGT. 660 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 661 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), L, R))); 662 EXPECT_EQ(L, MatchL); 663 EXPECT_EQ(R, MatchR); 664 665 // Test OGE. 666 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 667 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), L, R))); 668 EXPECT_EQ(L, MatchL); 669 EXPECT_EQ(R, MatchR); 670 671 // Test no match on OLE. 672 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 673 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), L, R))); 674 675 // Test no match on OLT. 676 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 677 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), L, R))); 678 679 680 // Test inverted selects. Note, that this "inverts" the ordering, e.g.: 681 // %cmp = fcmp ole L, R 682 // %max = select %cmp, R, L 683 // Given L == NaN, 684 // the above is expanded to %cmp == false ==> %max == L 685 // which is true for UnordFMax, not OrdFMax, so test that: 686 687 // [OU]LE with inverted select. 688 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 689 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), R, L))); 690 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 691 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), R, L))); 692 EXPECT_EQ(L, MatchL); 693 EXPECT_EQ(R, MatchR); 694 695 // [OUT]LT with inverted select. 696 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 697 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), R, L))); 698 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR)) 699 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), R, L))); 700 EXPECT_EQ(L, MatchL); 701 EXPECT_EQ(R, MatchR); 702 } 703 704 TEST_F(PatternMatchTest, FloatingPointUnorderedMin) { 705 Type *FltTy = IRB.getFloatTy(); 706 Value *L = ConstantFP::get(FltTy, 1.0); 707 Value *R = ConstantFP::get(FltTy, 2.0); 708 Value *MatchL, *MatchR; 709 710 // Test ULT. 711 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 712 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), L, R))); 713 EXPECT_EQ(L, MatchL); 714 EXPECT_EQ(R, MatchR); 715 716 // Test ULE. 717 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 718 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), L, R))); 719 EXPECT_EQ(L, MatchL); 720 EXPECT_EQ(R, MatchR); 721 722 // Test no match on UGE. 723 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 724 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), L, R))); 725 726 // Test no match on UGT. 727 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 728 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), L, R))); 729 730 // Test inverted selects. Note, that this "inverts" the ordering, e.g.: 731 // %cmp = fcmp uge L, R 732 // %min = select %cmp R, L 733 // Given L == NaN 734 // the above is expanded to %cmp == true ==> %min = R 735 // which is true for OrdFMin, not UnordFMin, so test that: 736 737 // [UO]GE with inverted select. 738 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 739 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), R, L))); 740 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 741 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), R, L))); 742 EXPECT_EQ(L, MatchL); 743 EXPECT_EQ(R, MatchR); 744 745 // [UO]GT with inverted select. 746 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 747 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), R, L))); 748 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR)) 749 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), R, L))); 750 EXPECT_EQ(L, MatchL); 751 EXPECT_EQ(R, MatchR); 752 } 753 754 TEST_F(PatternMatchTest, FloatingPointUnorderedMax) { 755 Type *FltTy = IRB.getFloatTy(); 756 Value *L = ConstantFP::get(FltTy, 1.0); 757 Value *R = ConstantFP::get(FltTy, 2.0); 758 Value *MatchL, *MatchR; 759 760 // Test UGT. 761 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 762 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), L, R))); 763 EXPECT_EQ(L, MatchL); 764 EXPECT_EQ(R, MatchR); 765 766 // Test UGE. 767 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 768 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), L, R))); 769 EXPECT_EQ(L, MatchL); 770 EXPECT_EQ(R, MatchR); 771 772 // Test no match on ULE. 773 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 774 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), L, R))); 775 776 // Test no match on ULT. 777 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 778 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), L, R))); 779 780 // Test inverted selects. Note, that this "inverts" the ordering, e.g.: 781 // %cmp = fcmp ule L, R 782 // %max = select %cmp R, L 783 // Given L == NaN 784 // the above is expanded to %cmp == true ==> %max = R 785 // which is true for OrdFMax, not UnordFMax, so test that: 786 787 // [UO]LE with inverted select. 788 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 789 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), R, L))); 790 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 791 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), R, L))); 792 EXPECT_EQ(L, MatchL); 793 EXPECT_EQ(R, MatchR); 794 795 // [UO]LT with inverted select. 796 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 797 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), R, L))); 798 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR)) 799 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), R, L))); 800 EXPECT_EQ(L, MatchL); 801 EXPECT_EQ(R, MatchR); 802 } 803 804 TEST_F(PatternMatchTest, OverflowingBinOps) { 805 Value *L = IRB.getInt32(1); 806 Value *R = IRB.getInt32(2); 807 Value *MatchL, *MatchR; 808 809 EXPECT_TRUE( 810 m_NSWAdd(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWAdd(L, R))); 811 EXPECT_EQ(L, MatchL); 812 EXPECT_EQ(R, MatchR); 813 MatchL = MatchR = nullptr; 814 EXPECT_TRUE( 815 m_NSWSub(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWSub(L, R))); 816 EXPECT_EQ(L, MatchL); 817 EXPECT_EQ(R, MatchR); 818 MatchL = MatchR = nullptr; 819 EXPECT_TRUE( 820 m_NSWMul(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWMul(L, R))); 821 EXPECT_EQ(L, MatchL); 822 EXPECT_EQ(R, MatchR); 823 MatchL = MatchR = nullptr; 824 EXPECT_TRUE(m_NSWShl(m_Value(MatchL), m_Value(MatchR)).match( 825 IRB.CreateShl(L, R, "", /* NUW */ false, /* NSW */ true))); 826 EXPECT_EQ(L, MatchL); 827 EXPECT_EQ(R, MatchR); 828 829 EXPECT_TRUE( 830 m_NUWAdd(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWAdd(L, R))); 831 EXPECT_EQ(L, MatchL); 832 EXPECT_EQ(R, MatchR); 833 MatchL = MatchR = nullptr; 834 EXPECT_TRUE( 835 m_NUWSub(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWSub(L, R))); 836 EXPECT_EQ(L, MatchL); 837 EXPECT_EQ(R, MatchR); 838 MatchL = MatchR = nullptr; 839 EXPECT_TRUE( 840 m_NUWMul(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWMul(L, R))); 841 EXPECT_EQ(L, MatchL); 842 EXPECT_EQ(R, MatchR); 843 MatchL = MatchR = nullptr; 844 EXPECT_TRUE(m_NUWShl(m_Value(MatchL), m_Value(MatchR)).match( 845 IRB.CreateShl(L, R, "", /* NUW */ true, /* NSW */ false))); 846 EXPECT_EQ(L, MatchL); 847 EXPECT_EQ(R, MatchR); 848 849 EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateAdd(L, R))); 850 EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); 851 EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateNSWSub(L, R))); 852 EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateSub(L, R))); 853 EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateNUWSub(L, R))); 854 EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); 855 EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateMul(L, R))); 856 EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateNUWMul(L, R))); 857 EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); 858 EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match(IRB.CreateShl(L, R))); 859 EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match( 860 IRB.CreateShl(L, R, "", /* NUW */ true, /* NSW */ false))); 861 EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); 862 863 EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateAdd(L, R))); 864 EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R))); 865 EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateNUWSub(L, R))); 866 EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateSub(L, R))); 867 EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateNSWSub(L, R))); 868 EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); 869 EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateMul(L, R))); 870 EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateNSWMul(L, R))); 871 EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); 872 EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match(IRB.CreateShl(L, R))); 873 EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match( 874 IRB.CreateShl(L, R, "", /* NUW */ false, /* NSW */ true))); 875 EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R))); 876 } 877 878 TEST_F(PatternMatchTest, LoadStoreOps) { 879 // Create this load/store sequence: 880 // 881 // %p = alloca i32* 882 // %0 = load i32*, i32** %p 883 // store i32 42, i32* %0 884 885 Value *Alloca = IRB.CreateAlloca(IRB.getInt32Ty()); 886 Value *LoadInst = IRB.CreateLoad(IRB.getInt32Ty(), Alloca); 887 Value *FourtyTwo = IRB.getInt32(42); 888 Value *StoreInst = IRB.CreateStore(FourtyTwo, Alloca); 889 Value *MatchLoad, *MatchStoreVal, *MatchStorePointer; 890 891 EXPECT_TRUE(m_Load(m_Value(MatchLoad)).match(LoadInst)); 892 EXPECT_EQ(Alloca, MatchLoad); 893 894 EXPECT_TRUE(m_Load(m_Specific(Alloca)).match(LoadInst)); 895 896 EXPECT_FALSE(m_Load(m_Value(MatchLoad)).match(Alloca)); 897 898 EXPECT_TRUE(m_Store(m_Value(MatchStoreVal), m_Value(MatchStorePointer)) 899 .match(StoreInst)); 900 EXPECT_EQ(FourtyTwo, MatchStoreVal); 901 EXPECT_EQ(Alloca, MatchStorePointer); 902 903 EXPECT_FALSE(m_Store(m_Value(MatchStoreVal), m_Value(MatchStorePointer)) 904 .match(Alloca)); 905 906 EXPECT_TRUE(m_Store(m_SpecificInt(42), m_Specific(Alloca)) 907 .match(StoreInst)); 908 EXPECT_FALSE(m_Store(m_SpecificInt(42), m_Specific(FourtyTwo)) 909 .match(StoreInst)); 910 EXPECT_FALSE(m_Store(m_SpecificInt(43), m_Specific(Alloca)) 911 .match(StoreInst)); 912 } 913 914 TEST_F(PatternMatchTest, VectorOps) { 915 // Build up small tree of vector operations 916 // 917 // Val = 0 + 1 918 // Val2 = Val + 3 919 // VI1 = insertelement <2 x i8> undef, i8 1, i32 0 = <1, undef> 920 // VI2 = insertelement <2 x i8> %VI1, i8 %Val2, i8 %Val = <1, 4> 921 // VI3 = insertelement <2 x i8> %VI1, i8 %Val2, i32 1 = <1, 4> 922 // VI4 = insertelement <2 x i8> %VI1, i8 2, i8 %Val = <1, 2> 923 // 924 // SI1 = shufflevector <2 x i8> %VI1, <2 x i8> undef, zeroinitializer 925 // SI2 = shufflevector <2 x i8> %VI3, <2 x i8> %VI4, <2 x i8> <i8 0, i8 2> 926 // SI3 = shufflevector <2 x i8> %VI3, <2 x i8> undef, zeroinitializer 927 // SI4 = shufflevector <2 x i8> %VI4, <2 x i8> undef, zeroinitializer 928 // 929 // SP1 = VectorSplat(2, i8 2) 930 // SP2 = VectorSplat(2, i8 %Val) 931 Type *VecTy = FixedVectorType::get(IRB.getInt8Ty(), 2); 932 Type *i32 = IRB.getInt32Ty(); 933 Type *i32VecTy = FixedVectorType::get(i32, 2); 934 935 Value *Val = IRB.CreateAdd(IRB.getInt8(0), IRB.getInt8(1)); 936 Value *Val2 = IRB.CreateAdd(Val, IRB.getInt8(3)); 937 938 SmallVector<Constant *, 2> VecElemIdxs; 939 VecElemIdxs.push_back(ConstantInt::get(i32, 0)); 940 VecElemIdxs.push_back(ConstantInt::get(i32, 2)); 941 auto *IdxVec = ConstantVector::get(VecElemIdxs); 942 943 Value *VI1 = IRB.CreateInsertElement(VecTy, IRB.getInt8(1), (uint64_t)0); 944 Value *VI2 = IRB.CreateInsertElement(VI1, Val2, Val); 945 Value *VI3 = IRB.CreateInsertElement(VI1, Val2, (uint64_t)1); 946 Value *VI4 = IRB.CreateInsertElement(VI1, IRB.getInt8(2), Val); 947 948 Value *EX1 = IRB.CreateExtractElement(VI4, Val); 949 Value *EX2 = IRB.CreateExtractElement(VI4, (uint64_t)0); 950 Value *EX3 = IRB.CreateExtractElement(IdxVec, (uint64_t)1); 951 952 Constant *Zero = ConstantAggregateZero::get(i32VecTy); 953 SmallVector<int, 16> ZeroMask; 954 ShuffleVectorInst::getShuffleMask(Zero, ZeroMask); 955 956 Value *SI1 = IRB.CreateShuffleVector(VI1, ZeroMask); 957 Value *SI2 = IRB.CreateShuffleVector(VI3, VI4, IdxVec); 958 Value *SI3 = IRB.CreateShuffleVector(VI3, ZeroMask); 959 Value *SI4 = IRB.CreateShuffleVector(VI4, ZeroMask); 960 961 Value *SP1 = IRB.CreateVectorSplat(2, IRB.getInt8(2)); 962 Value *SP2 = IRB.CreateVectorSplat(2, Val); 963 964 Value *A = nullptr, *B = nullptr, *C = nullptr; 965 966 // Test matching insertelement 967 EXPECT_TRUE(match(VI1, m_InsertElt(m_Value(), m_Value(), m_Value()))); 968 EXPECT_TRUE( 969 match(VI1, m_InsertElt(m_Undef(), m_ConstantInt(), m_ConstantInt()))); 970 EXPECT_TRUE( 971 match(VI1, m_InsertElt(m_Undef(), m_ConstantInt(), m_Zero()))); 972 EXPECT_TRUE( 973 match(VI1, m_InsertElt(m_Undef(), m_SpecificInt(1), m_Zero()))); 974 EXPECT_TRUE(match(VI2, m_InsertElt(m_Value(), m_Value(), m_Value()))); 975 EXPECT_FALSE( 976 match(VI2, m_InsertElt(m_Value(), m_Value(), m_ConstantInt()))); 977 EXPECT_FALSE( 978 match(VI2, m_InsertElt(m_Value(), m_ConstantInt(), m_Value()))); 979 EXPECT_FALSE(match(VI2, m_InsertElt(m_Constant(), m_Value(), m_Value()))); 980 EXPECT_TRUE(match(VI3, m_InsertElt(m_Value(A), m_Value(B), m_Value(C)))); 981 EXPECT_TRUE(A == VI1); 982 EXPECT_TRUE(B == Val2); 983 EXPECT_TRUE(isa<ConstantInt>(C)); 984 A = B = C = nullptr; // reset 985 986 // Test matching extractelement 987 EXPECT_TRUE(match(EX1, m_ExtractElt(m_Value(A), m_Value(B)))); 988 EXPECT_TRUE(A == VI4); 989 EXPECT_TRUE(B == Val); 990 A = B = C = nullptr; // reset 991 EXPECT_FALSE(match(EX1, m_ExtractElt(m_Value(), m_ConstantInt()))); 992 EXPECT_TRUE(match(EX2, m_ExtractElt(m_Value(), m_ConstantInt()))); 993 EXPECT_TRUE(match(EX3, m_ExtractElt(m_Constant(), m_ConstantInt()))); 994 995 // Test matching shufflevector 996 ArrayRef<int> Mask; 997 EXPECT_TRUE(match(SI1, m_Shuffle(m_Value(), m_Undef(), m_ZeroMask()))); 998 EXPECT_TRUE(match(SI2, m_Shuffle(m_Value(A), m_Value(B), m_Mask(Mask)))); 999 EXPECT_TRUE(A == VI3); 1000 EXPECT_TRUE(B == VI4); 1001 A = B = C = nullptr; // reset 1002 1003 // Test matching the vector splat pattern 1004 EXPECT_TRUE(match( 1005 SI1, 1006 m_Shuffle(m_InsertElt(m_Undef(), m_SpecificInt(1), m_Zero()), 1007 m_Undef(), m_ZeroMask()))); 1008 EXPECT_FALSE(match( 1009 SI3, m_Shuffle(m_InsertElt(m_Undef(), m_Value(), m_Zero()), 1010 m_Undef(), m_ZeroMask()))); 1011 EXPECT_FALSE(match( 1012 SI4, m_Shuffle(m_InsertElt(m_Undef(), m_Value(), m_Zero()), 1013 m_Undef(), m_ZeroMask()))); 1014 EXPECT_TRUE(match( 1015 SP1, 1016 m_Shuffle(m_InsertElt(m_Undef(), m_SpecificInt(2), m_Zero()), 1017 m_Undef(), m_ZeroMask()))); 1018 EXPECT_TRUE(match( 1019 SP2, m_Shuffle(m_InsertElt(m_Undef(), m_Value(A), m_Zero()), 1020 m_Undef(), m_ZeroMask()))); 1021 EXPECT_TRUE(A == Val); 1022 } 1023 1024 TEST_F(PatternMatchTest, UndefPoisonMix) { 1025 Type *ScalarTy = IRB.getInt8Ty(); 1026 ArrayType *ArrTy = ArrayType::get(ScalarTy, 2); 1027 StructType *StTy = StructType::get(ScalarTy, ScalarTy); 1028 StructType *StTy2 = StructType::get(ScalarTy, StTy); 1029 StructType *StTy3 = StructType::get(StTy, ScalarTy); 1030 Constant *Zero = ConstantInt::getNullValue(ScalarTy); 1031 UndefValue *U = UndefValue::get(ScalarTy); 1032 UndefValue *P = PoisonValue::get(ScalarTy); 1033 1034 EXPECT_TRUE(match(ConstantVector::get({U, P}), m_Undef())); 1035 EXPECT_TRUE(match(ConstantVector::get({P, U}), m_Undef())); 1036 1037 EXPECT_TRUE(match(ConstantArray::get(ArrTy, {U, P}), m_Undef())); 1038 EXPECT_TRUE(match(ConstantArray::get(ArrTy, {P, U}), m_Undef())); 1039 1040 auto *UP = ConstantStruct::get(StTy, {U, P}); 1041 EXPECT_TRUE(match(ConstantStruct::get(StTy2, {U, UP}), m_Undef())); 1042 EXPECT_TRUE(match(ConstantStruct::get(StTy2, {P, UP}), m_Undef())); 1043 EXPECT_TRUE(match(ConstantStruct::get(StTy3, {UP, U}), m_Undef())); 1044 EXPECT_TRUE(match(ConstantStruct::get(StTy3, {UP, P}), m_Undef())); 1045 1046 EXPECT_FALSE(match(ConstantStruct::get(StTy, {U, Zero}), m_Undef())); 1047 EXPECT_FALSE(match(ConstantStruct::get(StTy, {Zero, U}), m_Undef())); 1048 EXPECT_FALSE(match(ConstantStruct::get(StTy, {P, Zero}), m_Undef())); 1049 EXPECT_FALSE(match(ConstantStruct::get(StTy, {Zero, P}), m_Undef())); 1050 1051 EXPECT_FALSE(match(ConstantStruct::get(StTy2, {Zero, UP}), m_Undef())); 1052 EXPECT_FALSE(match(ConstantStruct::get(StTy3, {UP, Zero}), m_Undef())); 1053 } 1054 1055 TEST_F(PatternMatchTest, VectorUndefInt) { 1056 Type *ScalarTy = IRB.getInt8Ty(); 1057 Type *VectorTy = FixedVectorType::get(ScalarTy, 4); 1058 Constant *ScalarUndef = UndefValue::get(ScalarTy); 1059 Constant *VectorUndef = UndefValue::get(VectorTy); 1060 Constant *ScalarZero = Constant::getNullValue(ScalarTy); 1061 Constant *VectorZero = Constant::getNullValue(VectorTy); 1062 1063 SmallVector<Constant *, 4> Elems; 1064 Elems.push_back(ScalarUndef); 1065 Elems.push_back(ScalarZero); 1066 Elems.push_back(ScalarUndef); 1067 Elems.push_back(ScalarZero); 1068 Constant *VectorZeroUndef = ConstantVector::get(Elems); 1069 1070 EXPECT_TRUE(match(ScalarUndef, m_Undef())); 1071 EXPECT_TRUE(match(VectorUndef, m_Undef())); 1072 EXPECT_FALSE(match(ScalarZero, m_Undef())); 1073 EXPECT_FALSE(match(VectorZero, m_Undef())); 1074 EXPECT_FALSE(match(VectorZeroUndef, m_Undef())); 1075 1076 EXPECT_FALSE(match(ScalarUndef, m_Zero())); 1077 EXPECT_FALSE(match(VectorUndef, m_Zero())); 1078 EXPECT_TRUE(match(ScalarZero, m_Zero())); 1079 EXPECT_TRUE(match(VectorZero, m_Zero())); 1080 EXPECT_TRUE(match(VectorZeroUndef, m_Zero())); 1081 1082 const APInt *C; 1083 // Regardless of whether undefs are allowed, 1084 // a fully undef constant does not match. 1085 EXPECT_FALSE(match(ScalarUndef, m_APInt(C))); 1086 EXPECT_FALSE(match(ScalarUndef, m_APIntForbidUndef(C))); 1087 EXPECT_FALSE(match(ScalarUndef, m_APIntAllowUndef(C))); 1088 EXPECT_FALSE(match(VectorUndef, m_APInt(C))); 1089 EXPECT_FALSE(match(VectorUndef, m_APIntForbidUndef(C))); 1090 EXPECT_FALSE(match(VectorUndef, m_APIntAllowUndef(C))); 1091 1092 // We can always match simple constants and simple splats. 1093 C = nullptr; 1094 EXPECT_TRUE(match(ScalarZero, m_APInt(C))); 1095 EXPECT_TRUE(C->isZero()); 1096 C = nullptr; 1097 EXPECT_TRUE(match(ScalarZero, m_APIntForbidUndef(C))); 1098 EXPECT_TRUE(C->isZero()); 1099 C = nullptr; 1100 EXPECT_TRUE(match(ScalarZero, m_APIntAllowUndef(C))); 1101 EXPECT_TRUE(C->isZero()); 1102 C = nullptr; 1103 EXPECT_TRUE(match(VectorZero, m_APInt(C))); 1104 EXPECT_TRUE(C->isZero()); 1105 C = nullptr; 1106 EXPECT_TRUE(match(VectorZero, m_APIntForbidUndef(C))); 1107 EXPECT_TRUE(C->isZero()); 1108 C = nullptr; 1109 EXPECT_TRUE(match(VectorZero, m_APIntAllowUndef(C))); 1110 EXPECT_TRUE(C->isZero()); 1111 1112 // Whether splats with undef can be matched depends on the matcher. 1113 EXPECT_FALSE(match(VectorZeroUndef, m_APInt(C))); 1114 EXPECT_FALSE(match(VectorZeroUndef, m_APIntForbidUndef(C))); 1115 C = nullptr; 1116 EXPECT_TRUE(match(VectorZeroUndef, m_APIntAllowUndef(C))); 1117 EXPECT_TRUE(C->isZero()); 1118 } 1119 1120 TEST_F(PatternMatchTest, VectorUndefFloat) { 1121 Type *ScalarTy = IRB.getFloatTy(); 1122 Type *VectorTy = FixedVectorType::get(ScalarTy, 4); 1123 Constant *ScalarUndef = UndefValue::get(ScalarTy); 1124 Constant *VectorUndef = UndefValue::get(VectorTy); 1125 Constant *ScalarZero = Constant::getNullValue(ScalarTy); 1126 Constant *VectorZero = Constant::getNullValue(VectorTy); 1127 Constant *ScalarPosInf = ConstantFP::getInfinity(ScalarTy, false); 1128 Constant *ScalarNegInf = ConstantFP::getInfinity(ScalarTy, true); 1129 Constant *ScalarNaN = ConstantFP::getNaN(ScalarTy, true); 1130 1131 Constant *VectorZeroUndef = 1132 ConstantVector::get({ScalarUndef, ScalarZero, ScalarUndef, ScalarZero}); 1133 1134 Constant *VectorInfUndef = ConstantVector::get( 1135 {ScalarPosInf, ScalarNegInf, ScalarUndef, ScalarPosInf}); 1136 1137 Constant *VectorNaNUndef = 1138 ConstantVector::get({ScalarUndef, ScalarNaN, ScalarNaN, ScalarNaN}); 1139 1140 EXPECT_TRUE(match(ScalarUndef, m_Undef())); 1141 EXPECT_TRUE(match(VectorUndef, m_Undef())); 1142 EXPECT_FALSE(match(ScalarZero, m_Undef())); 1143 EXPECT_FALSE(match(VectorZero, m_Undef())); 1144 EXPECT_FALSE(match(VectorZeroUndef, m_Undef())); 1145 EXPECT_FALSE(match(VectorInfUndef, m_Undef())); 1146 EXPECT_FALSE(match(VectorNaNUndef, m_Undef())); 1147 1148 EXPECT_FALSE(match(ScalarUndef, m_AnyZeroFP())); 1149 EXPECT_FALSE(match(VectorUndef, m_AnyZeroFP())); 1150 EXPECT_TRUE(match(ScalarZero, m_AnyZeroFP())); 1151 EXPECT_TRUE(match(VectorZero, m_AnyZeroFP())); 1152 EXPECT_TRUE(match(VectorZeroUndef, m_AnyZeroFP())); 1153 EXPECT_FALSE(match(VectorInfUndef, m_AnyZeroFP())); 1154 EXPECT_FALSE(match(VectorNaNUndef, m_AnyZeroFP())); 1155 1156 EXPECT_FALSE(match(ScalarUndef, m_NaN())); 1157 EXPECT_FALSE(match(VectorUndef, m_NaN())); 1158 EXPECT_FALSE(match(VectorZeroUndef, m_NaN())); 1159 EXPECT_FALSE(match(ScalarPosInf, m_NaN())); 1160 EXPECT_FALSE(match(ScalarNegInf, m_NaN())); 1161 EXPECT_TRUE(match(ScalarNaN, m_NaN())); 1162 EXPECT_FALSE(match(VectorInfUndef, m_NaN())); 1163 EXPECT_TRUE(match(VectorNaNUndef, m_NaN())); 1164 1165 EXPECT_FALSE(match(ScalarUndef, m_NonNaN())); 1166 EXPECT_FALSE(match(VectorUndef, m_NonNaN())); 1167 EXPECT_TRUE(match(VectorZeroUndef, m_NonNaN())); 1168 EXPECT_TRUE(match(ScalarPosInf, m_NonNaN())); 1169 EXPECT_TRUE(match(ScalarNegInf, m_NonNaN())); 1170 EXPECT_FALSE(match(ScalarNaN, m_NonNaN())); 1171 EXPECT_TRUE(match(VectorInfUndef, m_NonNaN())); 1172 EXPECT_FALSE(match(VectorNaNUndef, m_NonNaN())); 1173 1174 EXPECT_FALSE(match(ScalarUndef, m_Inf())); 1175 EXPECT_FALSE(match(VectorUndef, m_Inf())); 1176 EXPECT_FALSE(match(VectorZeroUndef, m_Inf())); 1177 EXPECT_TRUE(match(ScalarPosInf, m_Inf())); 1178 EXPECT_TRUE(match(ScalarNegInf, m_Inf())); 1179 EXPECT_FALSE(match(ScalarNaN, m_Inf())); 1180 EXPECT_TRUE(match(VectorInfUndef, m_Inf())); 1181 EXPECT_FALSE(match(VectorNaNUndef, m_Inf())); 1182 1183 EXPECT_FALSE(match(ScalarUndef, m_NonInf())); 1184 EXPECT_FALSE(match(VectorUndef, m_NonInf())); 1185 EXPECT_TRUE(match(VectorZeroUndef, m_NonInf())); 1186 EXPECT_FALSE(match(ScalarPosInf, m_NonInf())); 1187 EXPECT_FALSE(match(ScalarNegInf, m_NonInf())); 1188 EXPECT_TRUE(match(ScalarNaN, m_NonInf())); 1189 EXPECT_FALSE(match(VectorInfUndef, m_NonInf())); 1190 EXPECT_TRUE(match(VectorNaNUndef, m_NonInf())); 1191 1192 EXPECT_FALSE(match(ScalarUndef, m_Finite())); 1193 EXPECT_FALSE(match(VectorUndef, m_Finite())); 1194 EXPECT_TRUE(match(VectorZeroUndef, m_Finite())); 1195 EXPECT_FALSE(match(ScalarPosInf, m_Finite())); 1196 EXPECT_FALSE(match(ScalarNegInf, m_Finite())); 1197 EXPECT_FALSE(match(ScalarNaN, m_Finite())); 1198 EXPECT_FALSE(match(VectorInfUndef, m_Finite())); 1199 EXPECT_FALSE(match(VectorNaNUndef, m_Finite())); 1200 1201 const APFloat *C; 1202 // Regardless of whether undefs are allowed, 1203 // a fully undef constant does not match. 1204 EXPECT_FALSE(match(ScalarUndef, m_APFloat(C))); 1205 EXPECT_FALSE(match(ScalarUndef, m_APFloatForbidUndef(C))); 1206 EXPECT_FALSE(match(ScalarUndef, m_APFloatAllowUndef(C))); 1207 EXPECT_FALSE(match(VectorUndef, m_APFloat(C))); 1208 EXPECT_FALSE(match(VectorUndef, m_APFloatForbidUndef(C))); 1209 EXPECT_FALSE(match(VectorUndef, m_APFloatAllowUndef(C))); 1210 1211 // We can always match simple constants and simple splats. 1212 C = nullptr; 1213 EXPECT_TRUE(match(ScalarZero, m_APFloat(C))); 1214 EXPECT_TRUE(C->isZero()); 1215 C = nullptr; 1216 EXPECT_TRUE(match(ScalarZero, m_APFloatForbidUndef(C))); 1217 EXPECT_TRUE(C->isZero()); 1218 C = nullptr; 1219 EXPECT_TRUE(match(ScalarZero, m_APFloatAllowUndef(C))); 1220 EXPECT_TRUE(C->isZero()); 1221 C = nullptr; 1222 EXPECT_TRUE(match(VectorZero, m_APFloat(C))); 1223 EXPECT_TRUE(C->isZero()); 1224 C = nullptr; 1225 EXPECT_TRUE(match(VectorZero, m_APFloatForbidUndef(C))); 1226 EXPECT_TRUE(C->isZero()); 1227 C = nullptr; 1228 EXPECT_TRUE(match(VectorZero, m_APFloatAllowUndef(C))); 1229 EXPECT_TRUE(C->isZero()); 1230 1231 // Whether splats with undef can be matched depends on the matcher. 1232 EXPECT_FALSE(match(VectorZeroUndef, m_APFloat(C))); 1233 EXPECT_FALSE(match(VectorZeroUndef, m_APFloatForbidUndef(C))); 1234 C = nullptr; 1235 EXPECT_TRUE(match(VectorZeroUndef, m_APFloatAllowUndef(C))); 1236 EXPECT_TRUE(C->isZero()); 1237 C = nullptr; 1238 EXPECT_TRUE(match(VectorZeroUndef, m_Finite(C))); 1239 EXPECT_TRUE(C->isZero()); 1240 } 1241 1242 TEST_F(PatternMatchTest, FloatingPointFNeg) { 1243 Type *FltTy = IRB.getFloatTy(); 1244 Value *One = ConstantFP::get(FltTy, 1.0); 1245 Value *Z = ConstantFP::get(FltTy, 0.0); 1246 Value *NZ = ConstantFP::get(FltTy, -0.0); 1247 Value *V = IRB.CreateFNeg(One); 1248 Value *V1 = IRB.CreateFSub(NZ, One); 1249 Value *V2 = IRB.CreateFSub(Z, One); 1250 Value *V3 = IRB.CreateFAdd(NZ, One); 1251 Value *Match; 1252 1253 // Test FNeg(1.0) 1254 EXPECT_TRUE(match(V, m_FNeg(m_Value(Match)))); 1255 EXPECT_EQ(One, Match); 1256 1257 // Test FSub(-0.0, 1.0) 1258 EXPECT_TRUE(match(V1, m_FNeg(m_Value(Match)))); 1259 EXPECT_EQ(One, Match); 1260 1261 // Test FSub(0.0, 1.0) 1262 EXPECT_FALSE(match(V2, m_FNeg(m_Value(Match)))); 1263 cast<Instruction>(V2)->setHasNoSignedZeros(true); 1264 EXPECT_TRUE(match(V2, m_FNeg(m_Value(Match)))); 1265 EXPECT_EQ(One, Match); 1266 1267 // Test FAdd(-0.0, 1.0) 1268 EXPECT_FALSE(match(V3, m_FNeg(m_Value(Match)))); 1269 } 1270 1271 TEST_F(PatternMatchTest, CondBranchTest) { 1272 BasicBlock *TrueBB = BasicBlock::Create(Ctx, "TrueBB", F); 1273 BasicBlock *FalseBB = BasicBlock::Create(Ctx, "FalseBB", F); 1274 Value *Br1 = IRB.CreateCondBr(IRB.getTrue(), TrueBB, FalseBB); 1275 1276 EXPECT_TRUE(match(Br1, m_Br(m_Value(), m_BasicBlock(), m_BasicBlock()))); 1277 1278 BasicBlock *A, *B; 1279 EXPECT_TRUE(match(Br1, m_Br(m_Value(), m_BasicBlock(A), m_BasicBlock(B)))); 1280 EXPECT_EQ(TrueBB, A); 1281 EXPECT_EQ(FalseBB, B); 1282 1283 EXPECT_FALSE( 1284 match(Br1, m_Br(m_Value(), m_SpecificBB(FalseBB), m_BasicBlock()))); 1285 EXPECT_FALSE( 1286 match(Br1, m_Br(m_Value(), m_BasicBlock(), m_SpecificBB(TrueBB)))); 1287 EXPECT_FALSE( 1288 match(Br1, m_Br(m_Value(), m_SpecificBB(FalseBB), m_BasicBlock(TrueBB)))); 1289 EXPECT_TRUE( 1290 match(Br1, m_Br(m_Value(), m_SpecificBB(TrueBB), m_BasicBlock(FalseBB)))); 1291 1292 // Check we can use m_Deferred with branches. 1293 EXPECT_FALSE(match(Br1, m_Br(m_Value(), m_BasicBlock(A), m_Deferred(A)))); 1294 Value *Br2 = IRB.CreateCondBr(IRB.getTrue(), TrueBB, TrueBB); 1295 A = nullptr; 1296 EXPECT_TRUE(match(Br2, m_Br(m_Value(), m_BasicBlock(A), m_Deferred(A)))); 1297 } 1298 1299 TEST_F(PatternMatchTest, WithOverflowInst) { 1300 Value *Add = IRB.CreateBinaryIntrinsic(Intrinsic::uadd_with_overflow, 1301 IRB.getInt32(0), IRB.getInt32(0)); 1302 Value *Add0 = IRB.CreateExtractValue(Add, 0); 1303 Value *Add1 = IRB.CreateExtractValue(Add, 1); 1304 1305 EXPECT_TRUE(match(Add0, m_ExtractValue<0>(m_Value()))); 1306 EXPECT_FALSE(match(Add0, m_ExtractValue<1>(m_Value()))); 1307 EXPECT_FALSE(match(Add1, m_ExtractValue<0>(m_Value()))); 1308 EXPECT_TRUE(match(Add1, m_ExtractValue<1>(m_Value()))); 1309 EXPECT_FALSE(match(Add, m_ExtractValue<1>(m_Value()))); 1310 EXPECT_FALSE(match(Add, m_ExtractValue<1>(m_Value()))); 1311 1312 WithOverflowInst *WOI; 1313 EXPECT_FALSE(match(Add0, m_WithOverflowInst(WOI))); 1314 EXPECT_FALSE(match(Add1, m_WithOverflowInst(WOI))); 1315 EXPECT_TRUE(match(Add, m_WithOverflowInst(WOI))); 1316 1317 EXPECT_TRUE(match(Add0, m_ExtractValue<0>(m_WithOverflowInst(WOI)))); 1318 EXPECT_EQ(Add, WOI); 1319 EXPECT_TRUE(match(Add1, m_ExtractValue<1>(m_WithOverflowInst(WOI)))); 1320 EXPECT_EQ(Add, WOI); 1321 } 1322 1323 TEST_F(PatternMatchTest, MinMaxIntrinsics) { 1324 Type *Ty = IRB.getInt32Ty(); 1325 Value *L = ConstantInt::get(Ty, 1); 1326 Value *R = ConstantInt::get(Ty, 2); 1327 Value *MatchL, *MatchR; 1328 1329 // Check for intrinsic ID match and capture of operands. 1330 EXPECT_TRUE(m_SMax(m_Value(MatchL), m_Value(MatchR)) 1331 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smax, L, R))); 1332 EXPECT_EQ(L, MatchL); 1333 EXPECT_EQ(R, MatchR); 1334 1335 EXPECT_TRUE(m_SMin(m_Value(MatchL), m_Value(MatchR)) 1336 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smin, L, R))); 1337 EXPECT_EQ(L, MatchL); 1338 EXPECT_EQ(R, MatchR); 1339 1340 EXPECT_TRUE(m_UMax(m_Value(MatchL), m_Value(MatchR)) 1341 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umax, L, R))); 1342 EXPECT_EQ(L, MatchL); 1343 EXPECT_EQ(R, MatchR); 1344 1345 EXPECT_TRUE(m_UMin(m_Value(MatchL), m_Value(MatchR)) 1346 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umin, L, R))); 1347 EXPECT_EQ(L, MatchL); 1348 EXPECT_EQ(R, MatchR); 1349 1350 // Check for intrinsic ID mismatch. 1351 EXPECT_FALSE(m_SMax(m_Value(MatchL), m_Value(MatchR)) 1352 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smin, L, R))); 1353 EXPECT_FALSE(m_SMin(m_Value(MatchL), m_Value(MatchR)) 1354 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umax, L, R))); 1355 EXPECT_FALSE(m_UMax(m_Value(MatchL), m_Value(MatchR)) 1356 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umin, L, R))); 1357 EXPECT_FALSE(m_UMin(m_Value(MatchL), m_Value(MatchR)) 1358 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smax, L, R))); 1359 } 1360 1361 TEST_F(PatternMatchTest, IntrinsicMatcher) { 1362 Value *Name = IRB.CreateAlloca(IRB.getInt8Ty()); 1363 Value *Hash = IRB.getInt64(0); 1364 Value *Num = IRB.getInt32(1); 1365 Value *Index = IRB.getInt32(2); 1366 Value *Step = IRB.getInt64(3); 1367 1368 Value *Ops[] = {Name, Hash, Num, Index, Step}; 1369 Module *M = BB->getParent()->getParent(); 1370 Function *TheFn = 1371 Intrinsic::getDeclaration(M, Intrinsic::instrprof_increment_step); 1372 1373 Value *Intrinsic5 = CallInst::Create(TheFn, Ops, "", BB); 1374 1375 // Match without capturing. 1376 EXPECT_TRUE(match( 1377 Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1378 m_Value(), m_Value(), m_Value(), m_Value(), m_Value()))); 1379 EXPECT_FALSE(match( 1380 Intrinsic5, m_Intrinsic<Intrinsic::memmove>( 1381 m_Value(), m_Value(), m_Value(), m_Value(), m_Value()))); 1382 1383 // Match with capturing. 1384 Value *Arg1 = nullptr; 1385 Value *Arg2 = nullptr; 1386 Value *Arg3 = nullptr; 1387 Value *Arg4 = nullptr; 1388 Value *Arg5 = nullptr; 1389 EXPECT_TRUE( 1390 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1391 m_Value(Arg1), m_Value(Arg2), m_Value(Arg3), 1392 m_Value(Arg4), m_Value(Arg5)))); 1393 EXPECT_EQ(Arg1, Name); 1394 EXPECT_EQ(Arg2, Hash); 1395 EXPECT_EQ(Arg3, Num); 1396 EXPECT_EQ(Arg4, Index); 1397 EXPECT_EQ(Arg5, Step); 1398 1399 // Match specific second argument. 1400 EXPECT_TRUE( 1401 match(Intrinsic5, 1402 m_Intrinsic<Intrinsic::instrprof_increment_step>( 1403 m_Value(), m_SpecificInt(0), m_Value(), m_Value(), m_Value()))); 1404 EXPECT_FALSE( 1405 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1406 m_Value(), m_SpecificInt(10), m_Value(), m_Value(), 1407 m_Value()))); 1408 1409 // Match specific third argument. 1410 EXPECT_TRUE( 1411 match(Intrinsic5, 1412 m_Intrinsic<Intrinsic::instrprof_increment_step>( 1413 m_Value(), m_Value(), m_SpecificInt(1), m_Value(), m_Value()))); 1414 EXPECT_FALSE( 1415 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1416 m_Value(), m_Value(), m_SpecificInt(10), m_Value(), 1417 m_Value()))); 1418 1419 // Match specific fourth argument. 1420 EXPECT_TRUE( 1421 match(Intrinsic5, 1422 m_Intrinsic<Intrinsic::instrprof_increment_step>( 1423 m_Value(), m_Value(), m_Value(), m_SpecificInt(2), m_Value()))); 1424 EXPECT_FALSE( 1425 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1426 m_Value(), m_Value(), m_Value(), m_SpecificInt(10), 1427 m_Value()))); 1428 1429 // Match specific fifth argument. 1430 EXPECT_TRUE( 1431 match(Intrinsic5, 1432 m_Intrinsic<Intrinsic::instrprof_increment_step>( 1433 m_Value(), m_Value(), m_Value(), m_Value(), m_SpecificInt(3)))); 1434 EXPECT_FALSE( 1435 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>( 1436 m_Value(), m_Value(), m_Value(), m_Value(), 1437 m_SpecificInt(10)))); 1438 } 1439 1440 namespace { 1441 1442 struct is_unsigned_zero_pred { 1443 bool isValue(const APInt &C) { return C.isZero(); } 1444 }; 1445 1446 struct is_float_zero_pred { 1447 bool isValue(const APFloat &C) { return C.isZero(); } 1448 }; 1449 1450 template <typename T> struct always_true_pred { 1451 bool isValue(const T &) { return true; } 1452 }; 1453 1454 template <typename T> struct always_false_pred { 1455 bool isValue(const T &) { return false; } 1456 }; 1457 1458 struct is_unsigned_max_pred { 1459 bool isValue(const APInt &C) { return C.isMaxValue(); } 1460 }; 1461 1462 struct is_float_nan_pred { 1463 bool isValue(const APFloat &C) { return C.isNaN(); } 1464 }; 1465 1466 } // namespace 1467 1468 TEST_F(PatternMatchTest, ConstantPredicateType) { 1469 1470 // Scalar integer 1471 APInt U32Max = APInt::getAllOnes(32); 1472 APInt U32Zero = APInt::getZero(32); 1473 APInt U32DeadBeef(32, 0xDEADBEEF); 1474 1475 Type *U32Ty = Type::getInt32Ty(Ctx); 1476 1477 Constant *CU32Max = Constant::getIntegerValue(U32Ty, U32Max); 1478 Constant *CU32Zero = Constant::getIntegerValue(U32Ty, U32Zero); 1479 Constant *CU32DeadBeef = Constant::getIntegerValue(U32Ty, U32DeadBeef); 1480 1481 EXPECT_TRUE(match(CU32Max, cst_pred_ty<is_unsigned_max_pred>())); 1482 EXPECT_FALSE(match(CU32Max, cst_pred_ty<is_unsigned_zero_pred>())); 1483 EXPECT_TRUE(match(CU32Max, cst_pred_ty<always_true_pred<APInt>>())); 1484 EXPECT_FALSE(match(CU32Max, cst_pred_ty<always_false_pred<APInt>>())); 1485 1486 EXPECT_FALSE(match(CU32Zero, cst_pred_ty<is_unsigned_max_pred>())); 1487 EXPECT_TRUE(match(CU32Zero, cst_pred_ty<is_unsigned_zero_pred>())); 1488 EXPECT_TRUE(match(CU32Zero, cst_pred_ty<always_true_pred<APInt>>())); 1489 EXPECT_FALSE(match(CU32Zero, cst_pred_ty<always_false_pred<APInt>>())); 1490 1491 EXPECT_FALSE(match(CU32DeadBeef, cst_pred_ty<is_unsigned_max_pred>())); 1492 EXPECT_FALSE(match(CU32DeadBeef, cst_pred_ty<is_unsigned_zero_pred>())); 1493 EXPECT_TRUE(match(CU32DeadBeef, cst_pred_ty<always_true_pred<APInt>>())); 1494 EXPECT_FALSE(match(CU32DeadBeef, cst_pred_ty<always_false_pred<APInt>>())); 1495 1496 // Scalar float 1497 APFloat F32NaN = APFloat::getNaN(APFloat::IEEEsingle()); 1498 APFloat F32Zero = APFloat::getZero(APFloat::IEEEsingle()); 1499 APFloat F32Pi(3.14f); 1500 1501 Type *F32Ty = Type::getFloatTy(Ctx); 1502 1503 Constant *CF32NaN = ConstantFP::get(F32Ty, F32NaN); 1504 Constant *CF32Zero = ConstantFP::get(F32Ty, F32Zero); 1505 Constant *CF32Pi = ConstantFP::get(F32Ty, F32Pi); 1506 1507 EXPECT_TRUE(match(CF32NaN, cstfp_pred_ty<is_float_nan_pred>())); 1508 EXPECT_FALSE(match(CF32NaN, cstfp_pred_ty<is_float_zero_pred>())); 1509 EXPECT_TRUE(match(CF32NaN, cstfp_pred_ty<always_true_pred<APFloat>>())); 1510 EXPECT_FALSE(match(CF32NaN, cstfp_pred_ty<always_false_pred<APFloat>>())); 1511 1512 EXPECT_FALSE(match(CF32Zero, cstfp_pred_ty<is_float_nan_pred>())); 1513 EXPECT_TRUE(match(CF32Zero, cstfp_pred_ty<is_float_zero_pred>())); 1514 EXPECT_TRUE(match(CF32Zero, cstfp_pred_ty<always_true_pred<APFloat>>())); 1515 EXPECT_FALSE(match(CF32Zero, cstfp_pred_ty<always_false_pred<APFloat>>())); 1516 1517 EXPECT_FALSE(match(CF32Pi, cstfp_pred_ty<is_float_nan_pred>())); 1518 EXPECT_FALSE(match(CF32Pi, cstfp_pred_ty<is_float_zero_pred>())); 1519 EXPECT_TRUE(match(CF32Pi, cstfp_pred_ty<always_true_pred<APFloat>>())); 1520 EXPECT_FALSE(match(CF32Pi, cstfp_pred_ty<always_false_pred<APFloat>>())); 1521 1522 auto FixedEC = ElementCount::getFixed(4); 1523 auto ScalableEC = ElementCount::getScalable(4); 1524 1525 // Vector splat 1526 1527 for (auto EC : {FixedEC, ScalableEC}) { 1528 // integer 1529 1530 Constant *CSplatU32Max = ConstantVector::getSplat(EC, CU32Max); 1531 Constant *CSplatU32Zero = ConstantVector::getSplat(EC, CU32Zero); 1532 Constant *CSplatU32DeadBeef = ConstantVector::getSplat(EC, CU32DeadBeef); 1533 1534 EXPECT_TRUE(match(CSplatU32Max, cst_pred_ty<is_unsigned_max_pred>())); 1535 EXPECT_FALSE(match(CSplatU32Max, cst_pred_ty<is_unsigned_zero_pred>())); 1536 EXPECT_TRUE(match(CSplatU32Max, cst_pred_ty<always_true_pred<APInt>>())); 1537 EXPECT_FALSE(match(CSplatU32Max, cst_pred_ty<always_false_pred<APInt>>())); 1538 1539 EXPECT_FALSE(match(CSplatU32Zero, cst_pred_ty<is_unsigned_max_pred>())); 1540 EXPECT_TRUE(match(CSplatU32Zero, cst_pred_ty<is_unsigned_zero_pred>())); 1541 EXPECT_TRUE(match(CSplatU32Zero, cst_pred_ty<always_true_pred<APInt>>())); 1542 EXPECT_FALSE(match(CSplatU32Zero, cst_pred_ty<always_false_pred<APInt>>())); 1543 1544 EXPECT_FALSE(match(CSplatU32DeadBeef, cst_pred_ty<is_unsigned_max_pred>())); 1545 EXPECT_FALSE( 1546 match(CSplatU32DeadBeef, cst_pred_ty<is_unsigned_zero_pred>())); 1547 EXPECT_TRUE( 1548 match(CSplatU32DeadBeef, cst_pred_ty<always_true_pred<APInt>>())); 1549 EXPECT_FALSE( 1550 match(CSplatU32DeadBeef, cst_pred_ty<always_false_pred<APInt>>())); 1551 1552 // float 1553 1554 Constant *CSplatF32NaN = ConstantVector::getSplat(EC, CF32NaN); 1555 Constant *CSplatF32Zero = ConstantVector::getSplat(EC, CF32Zero); 1556 Constant *CSplatF32Pi = ConstantVector::getSplat(EC, CF32Pi); 1557 1558 EXPECT_TRUE(match(CSplatF32NaN, cstfp_pred_ty<is_float_nan_pred>())); 1559 EXPECT_FALSE(match(CSplatF32NaN, cstfp_pred_ty<is_float_zero_pred>())); 1560 EXPECT_TRUE( 1561 match(CSplatF32NaN, cstfp_pred_ty<always_true_pred<APFloat>>())); 1562 EXPECT_FALSE( 1563 match(CSplatF32NaN, cstfp_pred_ty<always_false_pred<APFloat>>())); 1564 1565 EXPECT_FALSE(match(CSplatF32Zero, cstfp_pred_ty<is_float_nan_pred>())); 1566 EXPECT_TRUE(match(CSplatF32Zero, cstfp_pred_ty<is_float_zero_pred>())); 1567 EXPECT_TRUE( 1568 match(CSplatF32Zero, cstfp_pred_ty<always_true_pred<APFloat>>())); 1569 EXPECT_FALSE( 1570 match(CSplatF32Zero, cstfp_pred_ty<always_false_pred<APFloat>>())); 1571 1572 EXPECT_FALSE(match(CSplatF32Pi, cstfp_pred_ty<is_float_nan_pred>())); 1573 EXPECT_FALSE(match(CSplatF32Pi, cstfp_pred_ty<is_float_zero_pred>())); 1574 EXPECT_TRUE(match(CSplatF32Pi, cstfp_pred_ty<always_true_pred<APFloat>>())); 1575 EXPECT_FALSE( 1576 match(CSplatF32Pi, cstfp_pred_ty<always_false_pred<APFloat>>())); 1577 } 1578 1579 // Int arbitrary vector 1580 1581 Constant *CMixedU32 = ConstantVector::get({CU32Max, CU32Zero, CU32DeadBeef}); 1582 Constant *CU32Undef = UndefValue::get(U32Ty); 1583 Constant *CU32MaxWithUndef = 1584 ConstantVector::get({CU32Undef, CU32Max, CU32Undef}); 1585 1586 EXPECT_FALSE(match(CMixedU32, cst_pred_ty<is_unsigned_max_pred>())); 1587 EXPECT_FALSE(match(CMixedU32, cst_pred_ty<is_unsigned_zero_pred>())); 1588 EXPECT_TRUE(match(CMixedU32, cst_pred_ty<always_true_pred<APInt>>())); 1589 EXPECT_FALSE(match(CMixedU32, cst_pred_ty<always_false_pred<APInt>>())); 1590 1591 EXPECT_TRUE(match(CU32MaxWithUndef, cst_pred_ty<is_unsigned_max_pred>())); 1592 EXPECT_FALSE(match(CU32MaxWithUndef, cst_pred_ty<is_unsigned_zero_pred>())); 1593 EXPECT_TRUE(match(CU32MaxWithUndef, cst_pred_ty<always_true_pred<APInt>>())); 1594 EXPECT_FALSE( 1595 match(CU32MaxWithUndef, cst_pred_ty<always_false_pred<APInt>>())); 1596 1597 // Float arbitrary vector 1598 1599 Constant *CMixedF32 = ConstantVector::get({CF32NaN, CF32Zero, CF32Pi}); 1600 Constant *CF32Undef = UndefValue::get(F32Ty); 1601 Constant *CF32NaNWithUndef = 1602 ConstantVector::get({CF32Undef, CF32NaN, CF32Undef}); 1603 1604 EXPECT_FALSE(match(CMixedF32, cstfp_pred_ty<is_float_nan_pred>())); 1605 EXPECT_FALSE(match(CMixedF32, cstfp_pred_ty<is_float_zero_pred>())); 1606 EXPECT_TRUE(match(CMixedF32, cstfp_pred_ty<always_true_pred<APFloat>>())); 1607 EXPECT_FALSE(match(CMixedF32, cstfp_pred_ty<always_false_pred<APFloat>>())); 1608 1609 EXPECT_TRUE(match(CF32NaNWithUndef, cstfp_pred_ty<is_float_nan_pred>())); 1610 EXPECT_FALSE(match(CF32NaNWithUndef, cstfp_pred_ty<is_float_zero_pred>())); 1611 EXPECT_TRUE( 1612 match(CF32NaNWithUndef, cstfp_pred_ty<always_true_pred<APFloat>>())); 1613 EXPECT_FALSE( 1614 match(CF32NaNWithUndef, cstfp_pred_ty<always_false_pred<APFloat>>())); 1615 } 1616 1617 TEST_F(PatternMatchTest, InsertValue) { 1618 Type *StructTy = StructType::create(IRB.getContext(), 1619 {IRB.getInt32Ty(), IRB.getInt64Ty()}); 1620 Value *Ins0 = 1621 IRB.CreateInsertValue(UndefValue::get(StructTy), IRB.getInt32(20), 0); 1622 Value *Ins1 = IRB.CreateInsertValue(Ins0, IRB.getInt64(90), 1); 1623 1624 EXPECT_TRUE(match(Ins0, m_InsertValue<0>(m_Value(), m_Value()))); 1625 EXPECT_FALSE(match(Ins0, m_InsertValue<1>(m_Value(), m_Value()))); 1626 EXPECT_FALSE(match(Ins1, m_InsertValue<0>(m_Value(), m_Value()))); 1627 EXPECT_TRUE(match(Ins1, m_InsertValue<1>(m_Value(), m_Value()))); 1628 1629 EXPECT_TRUE(match(Ins0, m_InsertValue<0>(m_Undef(), m_SpecificInt(20)))); 1630 EXPECT_FALSE(match(Ins0, m_InsertValue<0>(m_Undef(), m_SpecificInt(0)))); 1631 1632 EXPECT_TRUE( 1633 match(Ins1, m_InsertValue<1>(m_InsertValue<0>(m_Value(), m_Value()), 1634 m_SpecificInt(90)))); 1635 EXPECT_FALSE(match(IRB.getInt64(99), m_InsertValue<0>(m_Value(), m_Value()))); 1636 } 1637 1638 TEST_F(PatternMatchTest, LogicalSelects) { 1639 Value *Alloca = IRB.CreateAlloca(IRB.getInt1Ty()); 1640 Value *X = IRB.CreateLoad(IRB.getInt1Ty(), Alloca); 1641 Value *Y = IRB.CreateLoad(IRB.getInt1Ty(), Alloca); 1642 Constant *T = IRB.getInt1(true); 1643 Constant *F = IRB.getInt1(false); 1644 Value *And = IRB.CreateSelect(X, Y, F); 1645 Value *Or = IRB.CreateSelect(X, T, Y); 1646 1647 // Logical and: 1648 // Check basic no-capture logic - opcode and constant must match. 1649 EXPECT_TRUE(match(And, m_LogicalAnd(m_Value(), m_Value()))); 1650 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Value(), m_Value()))); 1651 EXPECT_FALSE(match(And, m_LogicalOr(m_Value(), m_Value()))); 1652 EXPECT_FALSE(match(And, m_c_LogicalOr(m_Value(), m_Value()))); 1653 1654 // Check with captures. 1655 EXPECT_TRUE(match(And, m_LogicalAnd(m_Specific(X), m_Value()))); 1656 EXPECT_TRUE(match(And, m_LogicalAnd(m_Value(), m_Specific(Y)))); 1657 EXPECT_TRUE(match(And, m_LogicalAnd(m_Specific(X), m_Specific(Y)))); 1658 1659 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(Y), m_Value()))); 1660 EXPECT_FALSE(match(And, m_LogicalAnd(m_Value(), m_Specific(X)))); 1661 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(Y), m_Specific(X)))); 1662 1663 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(X), m_Specific(X)))); 1664 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(Y), m_Specific(Y)))); 1665 1666 // Check captures for commutative match. 1667 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(X), m_Value()))); 1668 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Value(), m_Specific(Y)))); 1669 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(X), m_Specific(Y)))); 1670 1671 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(Y), m_Value()))); 1672 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Value(), m_Specific(X)))); 1673 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(Y), m_Specific(X)))); 1674 1675 EXPECT_FALSE(match(And, m_c_LogicalAnd(m_Specific(X), m_Specific(X)))); 1676 EXPECT_FALSE(match(And, m_c_LogicalAnd(m_Specific(Y), m_Specific(Y)))); 1677 1678 // Logical or: 1679 // Check basic no-capture logic - opcode and constant must match. 1680 EXPECT_TRUE(match(Or, m_LogicalOr(m_Value(), m_Value()))); 1681 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Value(), m_Value()))); 1682 EXPECT_FALSE(match(Or, m_LogicalAnd(m_Value(), m_Value()))); 1683 EXPECT_FALSE(match(Or, m_c_LogicalAnd(m_Value(), m_Value()))); 1684 1685 // Check with captures. 1686 EXPECT_TRUE(match(Or, m_LogicalOr(m_Specific(X), m_Value()))); 1687 EXPECT_TRUE(match(Or, m_LogicalOr(m_Value(), m_Specific(Y)))); 1688 EXPECT_TRUE(match(Or, m_LogicalOr(m_Specific(X), m_Specific(Y)))); 1689 1690 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(Y), m_Value()))); 1691 EXPECT_FALSE(match(Or, m_LogicalOr(m_Value(), m_Specific(X)))); 1692 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(Y), m_Specific(X)))); 1693 1694 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(X), m_Specific(X)))); 1695 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(Y), m_Specific(Y)))); 1696 1697 // Check captures for commutative match. 1698 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(X), m_Value()))); 1699 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Value(), m_Specific(Y)))); 1700 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(X), m_Specific(Y)))); 1701 1702 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(Y), m_Value()))); 1703 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Value(), m_Specific(X)))); 1704 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(Y), m_Specific(X)))); 1705 1706 EXPECT_FALSE(match(Or, m_c_LogicalOr(m_Specific(X), m_Specific(X)))); 1707 EXPECT_FALSE(match(Or, m_c_LogicalOr(m_Specific(Y), m_Specific(Y)))); 1708 } 1709 1710 TEST_F(PatternMatchTest, VScale) { 1711 DataLayout DL = M->getDataLayout(); 1712 1713 Type *VecTy = ScalableVectorType::get(IRB.getInt8Ty(), 1); 1714 Type *VecPtrTy = VecTy->getPointerTo(); 1715 Value *NullPtrVec = Constant::getNullValue(VecPtrTy); 1716 Value *GEP = IRB.CreateGEP(VecTy, NullPtrVec, IRB.getInt64(1)); 1717 Value *PtrToInt = IRB.CreatePtrToInt(GEP, DL.getIntPtrType(GEP->getType())); 1718 EXPECT_TRUE(match(PtrToInt, m_VScale(DL))); 1719 1720 // Prior to this patch, this case would cause assertion failures when attempting to match m_VScale 1721 Type *VecTy2 = ScalableVectorType::get(IRB.getInt8Ty(), 2); 1722 Value *NullPtrVec2 = Constant::getNullValue(VecTy2->getPointerTo()); 1723 Value *BitCast = IRB.CreateBitCast(NullPtrVec2, VecPtrTy); 1724 Value *GEP2 = IRB.CreateGEP(VecTy, BitCast, IRB.getInt64(1)); 1725 Value *PtrToInt2 = 1726 IRB.CreatePtrToInt(GEP2, DL.getIntPtrType(GEP2->getType())); 1727 EXPECT_FALSE(match(PtrToInt2, m_VScale(DL))); 1728 } 1729 1730 TEST_F(PatternMatchTest, NotForbidUndef) { 1731 Type *ScalarTy = IRB.getInt8Ty(); 1732 Type *VectorTy = FixedVectorType::get(ScalarTy, 3); 1733 Constant *ScalarUndef = UndefValue::get(ScalarTy); 1734 Constant *ScalarOnes = Constant::getAllOnesValue(ScalarTy); 1735 Constant *VectorZero = Constant::getNullValue(VectorTy); 1736 Constant *VectorOnes = Constant::getAllOnesValue(VectorTy); 1737 1738 SmallVector<Constant *, 3> MixedElems; 1739 MixedElems.push_back(ScalarOnes); 1740 MixedElems.push_back(ScalarOnes); 1741 MixedElems.push_back(ScalarUndef); 1742 Constant *VectorMixed = ConstantVector::get(MixedElems); 1743 1744 Value *Not = IRB.CreateXor(VectorZero, VectorOnes); 1745 Value *X; 1746 EXPECT_TRUE(match(Not, m_Not(m_Value()))); 1747 EXPECT_TRUE(match(Not, m_NotForbidUndef(m_Value(X)))); 1748 EXPECT_TRUE(match(X, m_Zero())); 1749 1750 Value *NotCommute = IRB.CreateXor(VectorOnes, VectorZero); 1751 Value *Y; 1752 EXPECT_TRUE(match(NotCommute, m_Not(m_Value()))); 1753 EXPECT_TRUE(match(NotCommute, m_NotForbidUndef(m_Value(Y)))); 1754 EXPECT_TRUE(match(Y, m_Zero())); 1755 1756 Value *NotWithUndefs = IRB.CreateXor(VectorZero, VectorMixed); 1757 EXPECT_TRUE(match(NotWithUndefs, m_Not(m_Value()))); 1758 EXPECT_FALSE(match(NotWithUndefs, m_NotForbidUndef(m_Value()))); 1759 1760 Value *NotWithUndefsCommute = IRB.CreateXor(VectorMixed, VectorZero); 1761 EXPECT_TRUE(match(NotWithUndefsCommute, m_Not(m_Value()))); 1762 EXPECT_FALSE(match(NotWithUndefsCommute, m_NotForbidUndef(m_Value(X)))); 1763 } 1764 1765 template <typename T> struct MutableConstTest : PatternMatchTest { }; 1766 1767 typedef ::testing::Types<std::tuple<Value*, Instruction*>, 1768 std::tuple<const Value*, const Instruction *>> 1769 MutableConstTestTypes; 1770 TYPED_TEST_SUITE(MutableConstTest, MutableConstTestTypes, ); 1771 1772 TYPED_TEST(MutableConstTest, ICmp) { 1773 auto &IRB = PatternMatchTest::IRB; 1774 1775 typedef std::tuple_element_t<0, TypeParam> ValueType; 1776 typedef std::tuple_element_t<1, TypeParam> InstructionType; 1777 1778 Value *L = IRB.getInt32(1); 1779 Value *R = IRB.getInt32(2); 1780 ICmpInst::Predicate Pred = ICmpInst::ICMP_UGT; 1781 1782 ValueType MatchL; 1783 ValueType MatchR; 1784 ICmpInst::Predicate MatchPred; 1785 1786 EXPECT_TRUE(m_ICmp(MatchPred, m_Value(MatchL), m_Value(MatchR)) 1787 .match((InstructionType)IRB.CreateICmp(Pred, L, R))); 1788 EXPECT_EQ(L, MatchL); 1789 EXPECT_EQ(R, MatchR); 1790 } 1791 1792 } // anonymous namespace. 1793