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Bump version to 19.1.0-rc3
[llvm-project.git] / llvm / unittests / IR / PatternMatch.cpp
blob309fcc93996bc551f22f2c9a8f753c54e8b5f05a
1 //===---- llvm/unittest/IR/PatternMatch.cpp - PatternMatch unit tests ----===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "llvm/IR/PatternMatch.h"
10 #include "llvm/ADT/APSInt.h"
11 #include "llvm/ADT/STLExtras.h"
12 #include "llvm/Analysis/ValueTracking.h"
13 #include "llvm/IR/BasicBlock.h"
14 #include "llvm/IR/Constants.h"
15 #include "llvm/IR/DataLayout.h"
16 #include "llvm/IR/DerivedTypes.h"
17 #include "llvm/IR/Function.h"
18 #include "llvm/IR/IRBuilder.h"
19 #include "llvm/IR/Instructions.h"
20 #include "llvm/IR/LLVMContext.h"
21 #include "llvm/IR/MDBuilder.h"
22 #include "llvm/IR/Module.h"
23 #include "llvm/IR/NoFolder.h"
24 #include "llvm/IR/Operator.h"
25 #include "llvm/IR/Type.h"
26 #include "gtest/gtest.h"
27
28 using namespace llvm;
29 using namespace llvm::PatternMatch;
30
31 namespace {
32
33 struct PatternMatchTest : ::testing::Test {
34 LLVMContext Ctx;
35 std::unique_ptr<Module> M;
36 Function *F;
37 BasicBlock *BB;
38 IRBuilder<NoFolder> IRB;
39
40 PatternMatchTest()
41 : M(new Module("PatternMatchTestModule", Ctx)),
42 F(Function::Create(
43 FunctionType::get(Type::getVoidTy(Ctx), /* IsVarArg */ false),
44 Function::ExternalLinkage, "f", M.get())),
45 BB(BasicBlock::Create(Ctx, "entry", F)), IRB(BB) {}
46 };
47
48 TEST_F(PatternMatchTest, OneUse) {
49 // Build up a little tree of values:
50 //
51 // One = (1 + 2) + 42
52 // Two = One + 42
53 // Leaf = (Two + 8) + (Two + 13)
54 Value *One = IRB.CreateAdd(IRB.CreateAdd(IRB.getInt32(1), IRB.getInt32(2)),
55 IRB.getInt32(42));
56 Value *Two = IRB.CreateAdd(One, IRB.getInt32(42));
57 Value *Leaf = IRB.CreateAdd(IRB.CreateAdd(Two, IRB.getInt32(8)),
58 IRB.CreateAdd(Two, IRB.getInt32(13)));
59 Value *V;
60
61 EXPECT_TRUE(m_OneUse(m_Value(V)).match(One));
62 EXPECT_EQ(One, V);
63
64 EXPECT_FALSE(m_OneUse(m_Value()).match(Two));
65 EXPECT_FALSE(m_OneUse(m_Value()).match(Leaf));
66 }
67
68 TEST_F(PatternMatchTest, SpecificIntEQ) {
69 Type *IntTy = IRB.getInt32Ty();
70 unsigned BitWidth = IntTy->getScalarSizeInBits();
71
72 Value *Zero = ConstantInt::get(IntTy, 0);
73 Value *One = ConstantInt::get(IntTy, 1);
74 Value *NegOne = ConstantInt::get(IntTy, -1);
75
76 EXPECT_TRUE(
77 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, 0))
78 .match(Zero));
79 EXPECT_FALSE(
80 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, 0))
81 .match(One));
82 EXPECT_FALSE(
83 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, 0))
84 .match(NegOne));
85
86 EXPECT_FALSE(
87 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, 1))
88 .match(Zero));
89 EXPECT_TRUE(
90 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, 1))
91 .match(One));
92 EXPECT_FALSE(
93 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, 1))
94 .match(NegOne));
95
96 EXPECT_FALSE(
97 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, -1))
98 .match(Zero));
99 EXPECT_FALSE(
100 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, -1))
101 .match(One));
102 EXPECT_TRUE(
103 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, -1))
104 .match(NegOne));
105 }
106
107 TEST_F(PatternMatchTest, SpecificIntNE) {
108 Type *IntTy = IRB.getInt32Ty();
109 unsigned BitWidth = IntTy->getScalarSizeInBits();
110
111 Value *Zero = ConstantInt::get(IntTy, 0);
112 Value *One = ConstantInt::get(IntTy, 1);
113 Value *NegOne = ConstantInt::get(IntTy, -1);
114
115 EXPECT_FALSE(
116 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, 0))
117 .match(Zero));
118 EXPECT_TRUE(
119 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, 0))
120 .match(One));
121 EXPECT_TRUE(
122 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, 0))
123 .match(NegOne));
124
125 EXPECT_TRUE(
126 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, 1))
127 .match(Zero));
128 EXPECT_FALSE(
129 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, 1))
130 .match(One));
131 EXPECT_TRUE(
132 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, 1))
133 .match(NegOne));
134
135 EXPECT_TRUE(
136 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, -1))
137 .match(Zero));
138 EXPECT_TRUE(
139 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, -1))
140 .match(One));
141 EXPECT_FALSE(
142 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, -1))
143 .match(NegOne));
144 }
145
146 TEST_F(PatternMatchTest, SpecificIntUGT) {
147 Type *IntTy = IRB.getInt32Ty();
148 unsigned BitWidth = IntTy->getScalarSizeInBits();
149
150 Value *Zero = ConstantInt::get(IntTy, 0);
151 Value *One = ConstantInt::get(IntTy, 1);
152 Value *NegOne = ConstantInt::get(IntTy, -1);
153
154 EXPECT_FALSE(
155 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, 0))
156 .match(Zero));
157 EXPECT_TRUE(
158 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, 0))
159 .match(One));
160 EXPECT_TRUE(
161 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, 0))
162 .match(NegOne));
163
164 EXPECT_FALSE(
165 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, 1))
166 .match(Zero));
167 EXPECT_FALSE(
168 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, 1))
169 .match(One));
170 EXPECT_TRUE(
171 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, 1))
172 .match(NegOne));
173
174 EXPECT_FALSE(
175 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, -1))
176 .match(Zero));
177 EXPECT_FALSE(
178 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, -1))
179 .match(One));
180 EXPECT_FALSE(
181 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, -1))
182 .match(NegOne));
183 }
184
185 TEST_F(PatternMatchTest, SignbitZeroChecks) {
186 Type *IntTy = IRB.getInt32Ty();
187
188 Value *Zero = ConstantInt::get(IntTy, 0);
189 Value *One = ConstantInt::get(IntTy, 1);
190 Value *NegOne = ConstantInt::get(IntTy, -1);
191
192 EXPECT_TRUE(m_Negative().match(NegOne));
193 EXPECT_FALSE(m_NonNegative().match(NegOne));
194 EXPECT_FALSE(m_StrictlyPositive().match(NegOne));
195 EXPECT_TRUE(m_NonPositive().match(NegOne));
196
197 EXPECT_FALSE(m_Negative().match(Zero));
198 EXPECT_TRUE(m_NonNegative().match(Zero));
199 EXPECT_FALSE(m_StrictlyPositive().match(Zero));
200 EXPECT_TRUE(m_NonPositive().match(Zero));
201
202 EXPECT_FALSE(m_Negative().match(One));
203 EXPECT_TRUE(m_NonNegative().match(One));
204 EXPECT_TRUE(m_StrictlyPositive().match(One));
205 EXPECT_FALSE(m_NonPositive().match(One));
206 }
207
208 TEST_F(PatternMatchTest, SpecificIntUGE) {
209 Type *IntTy = IRB.getInt32Ty();
210 unsigned BitWidth = IntTy->getScalarSizeInBits();
211
212 Value *Zero = ConstantInt::get(IntTy, 0);
213 Value *One = ConstantInt::get(IntTy, 1);
214 Value *NegOne = ConstantInt::get(IntTy, -1);
215
216 EXPECT_TRUE(
217 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, 0))
218 .match(Zero));
219 EXPECT_TRUE(
220 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, 0))
221 .match(One));
222 EXPECT_TRUE(
223 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, 0))
224 .match(NegOne));
225
226 EXPECT_FALSE(
227 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, 1))
228 .match(Zero));
229 EXPECT_TRUE(
230 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, 1))
231 .match(One));
232 EXPECT_TRUE(
233 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, 1))
234 .match(NegOne));
235
236 EXPECT_FALSE(
237 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, -1))
238 .match(Zero));
239 EXPECT_FALSE(
240 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, -1))
241 .match(One));
242 EXPECT_TRUE(
243 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, -1))
244 .match(NegOne));
245 }
246
247 TEST_F(PatternMatchTest, SpecificIntULT) {
248 Type *IntTy = IRB.getInt32Ty();
249 unsigned BitWidth = IntTy->getScalarSizeInBits();
250
251 Value *Zero = ConstantInt::get(IntTy, 0);
252 Value *One = ConstantInt::get(IntTy, 1);
253 Value *NegOne = ConstantInt::get(IntTy, -1);
254
255 EXPECT_FALSE(
256 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, 0))
257 .match(Zero));
258 EXPECT_FALSE(
259 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, 0))
260 .match(One));
261 EXPECT_FALSE(
262 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, 0))
263 .match(NegOne));
264
265 EXPECT_TRUE(
266 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, 1))
267 .match(Zero));
268 EXPECT_FALSE(
269 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, 1))
270 .match(One));
271 EXPECT_FALSE(
272 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, 1))
273 .match(NegOne));
274
275 EXPECT_TRUE(
276 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, -1))
277 .match(Zero));
278 EXPECT_TRUE(
279 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, -1))
280 .match(One));
281 EXPECT_FALSE(
282 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, -1))
283 .match(NegOne));
284 }
285
286 TEST_F(PatternMatchTest, SpecificIntULE) {
287 Type *IntTy = IRB.getInt32Ty();
288 unsigned BitWidth = IntTy->getScalarSizeInBits();
289
290 Value *Zero = ConstantInt::get(IntTy, 0);
291 Value *One = ConstantInt::get(IntTy, 1);
292 Value *NegOne = ConstantInt::get(IntTy, -1);
293
294 EXPECT_TRUE(
295 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, 0))
296 .match(Zero));
297 EXPECT_FALSE(
298 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, 0))
299 .match(One));
300 EXPECT_FALSE(
301 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, 0))
302 .match(NegOne));
303
304 EXPECT_TRUE(
305 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, 1))
306 .match(Zero));
307 EXPECT_TRUE(
308 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, 1))
309 .match(One));
310 EXPECT_FALSE(
311 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, 1))
312 .match(NegOne));
313
314 EXPECT_TRUE(
315 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, -1))
316 .match(Zero));
317 EXPECT_TRUE(
318 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, -1))
319 .match(One));
320 EXPECT_TRUE(
321 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, -1))
322 .match(NegOne));
323 }
324
325 TEST_F(PatternMatchTest, SpecificIntSGT) {
326 Type *IntTy = IRB.getInt32Ty();
327 unsigned BitWidth = IntTy->getScalarSizeInBits();
328
329 Value *Zero = ConstantInt::get(IntTy, 0);
330 Value *One = ConstantInt::get(IntTy, 1);
331 Value *NegOne = ConstantInt::get(IntTy, -1);
332
333 EXPECT_FALSE(
334 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, 0))
335 .match(Zero));
336 EXPECT_TRUE(
337 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, 0))
338 .match(One));
339 EXPECT_FALSE(
340 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, 0))
341 .match(NegOne));
342
343 EXPECT_FALSE(
344 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, 1))
345 .match(Zero));
346 EXPECT_FALSE(
347 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, 1))
348 .match(One));
349 EXPECT_FALSE(
350 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, 1))
351 .match(NegOne));
352
353 EXPECT_TRUE(
354 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, -1))
355 .match(Zero));
356 EXPECT_TRUE(
357 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, -1))
358 .match(One));
359 EXPECT_FALSE(
360 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, -1))
361 .match(NegOne));
362 }
363
364 TEST_F(PatternMatchTest, SpecificIntSGE) {
365 Type *IntTy = IRB.getInt32Ty();
366 unsigned BitWidth = IntTy->getScalarSizeInBits();
367
368 Value *Zero = ConstantInt::get(IntTy, 0);
369 Value *One = ConstantInt::get(IntTy, 1);
370 Value *NegOne = ConstantInt::get(IntTy, -1);
371
372 EXPECT_TRUE(
373 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, 0))
374 .match(Zero));
375 EXPECT_TRUE(
376 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, 0))
377 .match(One));
378 EXPECT_FALSE(
379 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, 0))
380 .match(NegOne));
381
382 EXPECT_FALSE(
383 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, 1))
384 .match(Zero));
385 EXPECT_TRUE(
386 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, 1))
387 .match(One));
388 EXPECT_FALSE(
389 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, 1))
390 .match(NegOne));
391
392 EXPECT_TRUE(
393 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, -1))
394 .match(Zero));
395 EXPECT_TRUE(
396 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, -1))
397 .match(One));
398 EXPECT_TRUE(
399 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, -1))
400 .match(NegOne));
401 }
402
403 TEST_F(PatternMatchTest, SpecificIntSLT) {
404 Type *IntTy = IRB.getInt32Ty();
405 unsigned BitWidth = IntTy->getScalarSizeInBits();
406
407 Value *Zero = ConstantInt::get(IntTy, 0);
408 Value *One = ConstantInt::get(IntTy, 1);
409 Value *NegOne = ConstantInt::get(IntTy, -1);
410
411 EXPECT_FALSE(
412 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, 0))
413 .match(Zero));
414 EXPECT_FALSE(
415 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, 0))
416 .match(One));
417 EXPECT_TRUE(
418 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, 0))
419 .match(NegOne));
420
421 EXPECT_TRUE(
422 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, 1))
423 .match(Zero));
424 EXPECT_FALSE(
425 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, 1))
426 .match(One));
427 EXPECT_TRUE(
428 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, 1))
429 .match(NegOne));
430
431 EXPECT_FALSE(
432 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, -1))
433 .match(Zero));
434 EXPECT_FALSE(
435 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, -1))
436 .match(One));
437 EXPECT_FALSE(
438 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, -1))
439 .match(NegOne));
440 }
441
442 TEST_F(PatternMatchTest, SpecificIntSLE) {
443 Type *IntTy = IRB.getInt32Ty();
444 unsigned BitWidth = IntTy->getScalarSizeInBits();
445
446 Value *Zero = ConstantInt::get(IntTy, 0);
447 Value *One = ConstantInt::get(IntTy, 1);
448 Value *NegOne = ConstantInt::get(IntTy, -1);
449
450 EXPECT_TRUE(
451 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, 0))
452 .match(Zero));
453 EXPECT_FALSE(
454 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, 0))
455 .match(One));
456 EXPECT_TRUE(
457 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, 0))
458 .match(NegOne));
459
460 EXPECT_TRUE(
461 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, 1))
462 .match(Zero));
463 EXPECT_TRUE(
464 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, 1))
465 .match(One));
466 EXPECT_TRUE(
467 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, 1))
468 .match(NegOne));
469
470 EXPECT_FALSE(
471 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, -1))
472 .match(Zero));
473 EXPECT_FALSE(
474 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, -1))
475 .match(One));
476 EXPECT_TRUE(
477 m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, -1))
478 .match(NegOne));
479 }
480
481 TEST_F(PatternMatchTest, Unless) {
482 Value *X = IRB.CreateAdd(IRB.getInt32(1), IRB.getInt32(0));
483
484 EXPECT_TRUE(m_Add(m_One(), m_Zero()).match(X));
485 EXPECT_FALSE(m_Add(m_Zero(), m_One()).match(X));
486
487 EXPECT_FALSE(m_Unless(m_Add(m_One(), m_Zero())).match(X));
488 EXPECT_TRUE(m_Unless(m_Add(m_Zero(), m_One())).match(X));
489
490 EXPECT_TRUE(m_c_Add(m_One(), m_Zero()).match(X));
491 EXPECT_TRUE(m_c_Add(m_Zero(), m_One()).match(X));
492
493 EXPECT_FALSE(m_Unless(m_c_Add(m_One(), m_Zero())).match(X));
494 EXPECT_FALSE(m_Unless(m_c_Add(m_Zero(), m_One())).match(X));
495 }
496
497 TEST_F(PatternMatchTest, BitWise) {
498 Value *Or = IRB.CreateOr(IRB.getInt32(1), IRB.getInt32(0));
499 Value *Xor = IRB.CreateXor(IRB.getInt32(1), IRB.getInt32(0));
500 Value *And = IRB.CreateXor(IRB.getInt32(1), IRB.getInt32(0));
501 Constant *T = IRB.getInt1(true);
502 Constant *F = IRB.getInt1(false);
503 Value *Alloca = IRB.CreateAlloca(IRB.getInt1Ty());
504 Value *X = IRB.CreateLoad(IRB.getInt1Ty(), Alloca);
505 Value *Y = IRB.CreateLoad(IRB.getInt1Ty(), Alloca);
506 Value *LAnd = IRB.CreateSelect(X, Y, F);
507 Value *LOr = IRB.CreateSelect(X, T, Y);
508 Value *Add = IRB.CreateAdd(IRB.getInt32(1), IRB.getInt32(0));
509
510 EXPECT_TRUE(m_BitwiseLogic(m_One(), m_Zero()).match(Or));
511 EXPECT_TRUE(m_BitwiseLogic(m_One(), m_Zero()).match(Xor));
512 EXPECT_TRUE(m_BitwiseLogic(m_One(), m_Zero()).match(And));
513 EXPECT_FALSE(m_BitwiseLogic(m_Value(), m_Value()).match(LAnd));
514 EXPECT_FALSE(m_BitwiseLogic(m_Value(), m_Value()).match(LOr));
515 EXPECT_FALSE(m_BitwiseLogic(m_Value(), m_Value()).match(Add));
516
517 EXPECT_FALSE(m_BitwiseLogic(m_Zero(), m_One()).match(Or));
518 EXPECT_FALSE(m_BitwiseLogic(m_Zero(), m_One()).match(Xor));
519 EXPECT_FALSE(m_BitwiseLogic(m_Zero(), m_One()).match(And));
520
521 EXPECT_TRUE(m_c_BitwiseLogic(m_One(), m_Zero()).match(Or));
522 EXPECT_TRUE(m_c_BitwiseLogic(m_One(), m_Zero()).match(Xor));
523 EXPECT_TRUE(m_c_BitwiseLogic(m_One(), m_Zero()).match(And));
524 EXPECT_FALSE(m_c_BitwiseLogic(m_Value(), m_Value()).match(LAnd));
525 EXPECT_FALSE(m_c_BitwiseLogic(m_Value(), m_Value()).match(LOr));
526 EXPECT_FALSE(m_c_BitwiseLogic(m_Value(), m_Value()).match(Add));
527
528 EXPECT_TRUE(m_c_BitwiseLogic(m_Zero(), m_One()).match(Or));
529 EXPECT_TRUE(m_c_BitwiseLogic(m_Zero(), m_One()).match(Xor));
530 EXPECT_TRUE(m_c_BitwiseLogic(m_Zero(), m_One()).match(And));
531
532 EXPECT_FALSE(m_c_BitwiseLogic(m_One(), m_One()).match(Or));
533 EXPECT_FALSE(m_c_BitwiseLogic(m_Zero(), m_Zero()).match(Xor));
534 }
535
536 TEST_F(PatternMatchTest, ZExtSExtSelf) {
537 LLVMContext &Ctx = IRB.getContext();
538
539 Value *One32 = IRB.getInt32(1);
540 Value *One64Z = IRB.CreateZExt(One32, IntegerType::getInt64Ty(Ctx));
541 Value *One64S = IRB.CreateSExt(One32, IntegerType::getInt64Ty(Ctx));
542
543 EXPECT_TRUE(m_One().match(One32));
544 EXPECT_FALSE(m_One().match(One64Z));
545 EXPECT_FALSE(m_One().match(One64S));
546
547 EXPECT_FALSE(m_ZExt(m_One()).match(One32));
548 EXPECT_TRUE(m_ZExt(m_One()).match(One64Z));
549 EXPECT_FALSE(m_ZExt(m_One()).match(One64S));
550
551 EXPECT_FALSE(m_SExt(m_One()).match(One32));
552 EXPECT_FALSE(m_SExt(m_One()).match(One64Z));
553 EXPECT_TRUE(m_SExt(m_One()).match(One64S));
554
555 EXPECT_TRUE(m_ZExtOrSelf(m_One()).match(One32));
556 EXPECT_TRUE(m_ZExtOrSelf(m_One()).match(One64Z));
557 EXPECT_FALSE(m_ZExtOrSelf(m_One()).match(One64S));
558
559 EXPECT_TRUE(m_SExtOrSelf(m_One()).match(One32));
560 EXPECT_FALSE(m_SExtOrSelf(m_One()).match(One64Z));
561 EXPECT_TRUE(m_SExtOrSelf(m_One()).match(One64S));
562
563 EXPECT_FALSE(m_ZExtOrSExt(m_One()).match(One32));
564 EXPECT_TRUE(m_ZExtOrSExt(m_One()).match(One64Z));
565 EXPECT_TRUE(m_ZExtOrSExt(m_One()).match(One64S));
566
567 EXPECT_TRUE(m_ZExtOrSExtOrSelf(m_One()).match(One32));
568 EXPECT_TRUE(m_ZExtOrSExtOrSelf(m_One()).match(One64Z));
569 EXPECT_TRUE(m_ZExtOrSExtOrSelf(m_One()).match(One64S));
570 }
571
572 TEST_F(PatternMatchTest, BitCast) {
573 Value *OneDouble = ConstantFP::get(IRB.getDoubleTy(), APFloat(1.0));
574 Value *ScalableDouble = ConstantFP::get(
575 VectorType::get(IRB.getDoubleTy(), 2, /*Scalable=*/true), APFloat(1.0));
576 // scalar -> scalar
577 Value *DoubleToI64 = IRB.CreateBitCast(OneDouble, IRB.getInt64Ty());
578 // scalar -> vector
579 Value *DoubleToV2I32 = IRB.CreateBitCast(
580 OneDouble, VectorType::get(IRB.getInt32Ty(), 2, /*Scalable=*/false));
581 // vector -> scalar
582 Value *V2I32ToDouble = IRB.CreateBitCast(DoubleToV2I32, IRB.getDoubleTy());
583 // vector -> vector (same count)
584 Value *V2I32ToV2Float = IRB.CreateBitCast(
585 DoubleToV2I32, VectorType::get(IRB.getFloatTy(), 2, /*Scalable=*/false));
586 // vector -> vector (different count)
587 Value *V2I32TOV4I16 = IRB.CreateBitCast(
588 DoubleToV2I32, VectorType::get(IRB.getInt16Ty(), 4, /*Scalable=*/false));
589 // scalable vector -> scalable vector (same count)
590 Value *NXV2DoubleToNXV2I64 = IRB.CreateBitCast(
591 ScalableDouble, VectorType::get(IRB.getInt64Ty(), 2, /*Scalable=*/true));
592 // scalable vector -> scalable vector (different count)
593 Value *NXV2I64ToNXV4I32 = IRB.CreateBitCast(
594 NXV2DoubleToNXV2I64,
595 VectorType::get(IRB.getInt32Ty(), 4, /*Scalable=*/true));
596
597 EXPECT_TRUE(m_BitCast(m_Value()).match(DoubleToI64));
598 EXPECT_TRUE(m_BitCast(m_Value()).match(DoubleToV2I32));
599 EXPECT_TRUE(m_BitCast(m_Value()).match(V2I32ToDouble));
600 EXPECT_TRUE(m_BitCast(m_Value()).match(V2I32ToV2Float));
601 EXPECT_TRUE(m_BitCast(m_Value()).match(V2I32TOV4I16));
602 EXPECT_TRUE(m_BitCast(m_Value()).match(NXV2DoubleToNXV2I64));
603 EXPECT_TRUE(m_BitCast(m_Value()).match(NXV2I64ToNXV4I32));
604
605 EXPECT_TRUE(m_ElementWiseBitCast(m_Value()).match(DoubleToI64));
606 EXPECT_FALSE(m_ElementWiseBitCast(m_Value()).match(DoubleToV2I32));
607 EXPECT_FALSE(m_ElementWiseBitCast(m_Value()).match(V2I32ToDouble));
608 EXPECT_TRUE(m_ElementWiseBitCast(m_Value()).match(V2I32ToV2Float));
609 EXPECT_FALSE(m_ElementWiseBitCast(m_Value()).match(V2I32TOV4I16));
610 EXPECT_TRUE(m_ElementWiseBitCast(m_Value()).match(NXV2DoubleToNXV2I64));
611 EXPECT_FALSE(m_ElementWiseBitCast(m_Value()).match(NXV2I64ToNXV4I32));
612 }
613
614 TEST_F(PatternMatchTest, CheckedInt) {
615 Type *I8Ty = IRB.getInt8Ty();
616 const Constant * CRes = nullptr;
617 auto CheckUgt1 = [](const APInt &C) { return C.ugt(1); };
618 auto CheckTrue = [](const APInt &) { return true; };
619 auto CheckFalse = [](const APInt &) { return false; };
620 auto CheckNonZero = [](const APInt &C) { return !C.isZero(); };
621 auto CheckPow2 = [](const APInt &C) { return C.isPowerOf2(); };
622
623 auto DoScalarCheck = [&](int8_t Val) {
624 APInt APVal(8, Val);
625 Constant *C = ConstantInt::get(I8Ty, Val);
626
627 CRes = nullptr;
628 EXPECT_TRUE(m_CheckedInt(CheckTrue).match(C));
629 EXPECT_TRUE(m_CheckedInt(CRes, CheckTrue).match(C));
630 EXPECT_EQ(CRes, C);
631
632 CRes = nullptr;
633 EXPECT_FALSE(m_CheckedInt(CheckFalse).match(C));
634 EXPECT_FALSE(m_CheckedInt(CRes, CheckFalse).match(C));
635 EXPECT_EQ(CRes, nullptr);
636
637 CRes = nullptr;
638 EXPECT_EQ(CheckUgt1(APVal), m_CheckedInt(CheckUgt1).match(C));
639 EXPECT_EQ(CheckUgt1(APVal), m_CheckedInt(CRes, CheckUgt1).match(C));
640 if (CheckUgt1(APVal))
641 EXPECT_EQ(CRes, C);
642
643 CRes = nullptr;
644 EXPECT_EQ(CheckNonZero(APVal), m_CheckedInt(CheckNonZero).match(C));
645 EXPECT_EQ(CheckNonZero(APVal), m_CheckedInt(CRes, CheckNonZero).match(C));
646 if (CheckNonZero(APVal))
647 EXPECT_EQ(CRes, C);
648
649 CRes = nullptr;
650 EXPECT_EQ(CheckPow2(APVal), m_CheckedInt(CheckPow2).match(C));
651 EXPECT_EQ(CheckPow2(APVal), m_CheckedInt(CRes, CheckPow2).match(C));
652 if (CheckPow2(APVal))
653 EXPECT_EQ(CRes, C);
654
655 };
656
657 DoScalarCheck(0);
658 DoScalarCheck(1);
659 DoScalarCheck(2);
660 DoScalarCheck(3);
661
662 EXPECT_FALSE(m_CheckedInt(CheckTrue).match(UndefValue::get(I8Ty)));
663 EXPECT_FALSE(m_CheckedInt(CRes, CheckTrue).match(UndefValue::get(I8Ty)));
664 EXPECT_EQ(CRes, nullptr);
665
666 EXPECT_FALSE(m_CheckedInt(CheckFalse).match(UndefValue::get(I8Ty)));
667 EXPECT_FALSE(m_CheckedInt(CRes, CheckFalse).match(UndefValue::get(I8Ty)));
668 EXPECT_EQ(CRes, nullptr);
669
670 EXPECT_FALSE(m_CheckedInt(CheckTrue).match(PoisonValue::get(I8Ty)));
671 EXPECT_FALSE(m_CheckedInt(CRes, CheckTrue).match(PoisonValue::get(I8Ty)));
672 EXPECT_EQ(CRes, nullptr);
673
674 EXPECT_FALSE(m_CheckedInt(CheckFalse).match(PoisonValue::get(I8Ty)));
675 EXPECT_FALSE(m_CheckedInt(CRes, CheckFalse).match(PoisonValue::get(I8Ty)));
676 EXPECT_EQ(CRes, nullptr);
677
678 auto DoVecCheckImpl = [&](ArrayRef<std::optional<int8_t>> Vals,
679 function_ref<bool(const APInt &)> CheckFn,
680 bool UndefAsPoison) {
681 SmallVector<Constant *> VecElems;
682 std::optional<bool> Okay;
683 bool AllSame = true;
684 bool HasUndef = false;
685 std::optional<APInt> First;
686 for (const std::optional<int8_t> &Val : Vals) {
687 if (!Val.has_value()) {
688 VecElems.push_back(UndefAsPoison ? PoisonValue::get(I8Ty)
689 : UndefValue::get(I8Ty));
690 HasUndef = true;
691 } else {
692 if (!Okay.has_value())
693 Okay = true;
694 APInt APVal(8, *Val);
695 if (!First.has_value())
696 First = APVal;
697 else
698 AllSame &= First->eq(APVal);
699 Okay = *Okay && CheckFn(APVal);
700 VecElems.push_back(ConstantInt::get(I8Ty, *Val));
701 }
702 }
703
704 Constant *C = ConstantVector::get(VecElems);
705 EXPECT_EQ(!(HasUndef && !UndefAsPoison) && Okay.value_or(false),
706 m_CheckedInt(CheckFn).match(C));
707
708 CRes = nullptr;
709 bool Expec = !(HasUndef && !UndefAsPoison) && Okay.value_or(false);
710 EXPECT_EQ(Expec, m_CheckedInt(CRes, CheckFn).match(C));
711 if (Expec) {
712 EXPECT_NE(CRes, nullptr);
713 if (AllSame)
714 EXPECT_EQ(CRes, C);
715 }
716 };
717 auto DoVecCheck = [&](ArrayRef<std::optional<int8_t>> Vals) {
718 DoVecCheckImpl(Vals, CheckTrue, /*UndefAsPoison=*/false);
719 DoVecCheckImpl(Vals, CheckFalse, /*UndefAsPoison=*/false);
720 DoVecCheckImpl(Vals, CheckTrue, /*UndefAsPoison=*/true);
721 DoVecCheckImpl(Vals, CheckFalse, /*UndefAsPoison=*/true);
722 DoVecCheckImpl(Vals, CheckUgt1, /*UndefAsPoison=*/false);
723 DoVecCheckImpl(Vals, CheckNonZero, /*UndefAsPoison=*/false);
724 DoVecCheckImpl(Vals, CheckPow2, /*UndefAsPoison=*/false);
725 };
726
727 DoVecCheck({0, 1});
728 DoVecCheck({1, 1});
729 DoVecCheck({1, 2});
730 DoVecCheck({1, std::nullopt});
731 DoVecCheck({1, std::nullopt, 1});
732 DoVecCheck({1, std::nullopt, 2});
733 DoVecCheck({std::nullopt, std::nullopt, std::nullopt});
734 }
735
736 TEST_F(PatternMatchTest, Power2) {
737 Value *C128 = IRB.getInt32(128);
738 Value *CNeg128 = ConstantExpr::getNeg(cast<Constant>(C128));
739
740 EXPECT_TRUE(m_Power2().match(C128));
741 EXPECT_FALSE(m_Power2().match(CNeg128));
742
743 EXPECT_TRUE(m_Power2OrZero().match(C128));
744 EXPECT_FALSE(m_Power2OrZero().match(CNeg128));
745
746 EXPECT_FALSE(m_NegatedPower2().match(C128));
747 EXPECT_TRUE(m_NegatedPower2().match(CNeg128));
748
749 EXPECT_FALSE(m_NegatedPower2OrZero().match(C128));
750 EXPECT_TRUE(m_NegatedPower2OrZero().match(CNeg128));
751
752 Value *CIntMin = IRB.getInt64(APSInt::getSignedMinValue(64).getSExtValue());
753 Value *CNegIntMin = ConstantExpr::getNeg(cast<Constant>(CIntMin));
754
755 EXPECT_TRUE(m_Power2().match(CIntMin));
756 EXPECT_TRUE(m_Power2().match(CNegIntMin));
757
758 EXPECT_TRUE(m_Power2OrZero().match(CIntMin));
759 EXPECT_TRUE(m_Power2OrZero().match(CNegIntMin));
760
761 EXPECT_TRUE(m_NegatedPower2().match(CIntMin));
762 EXPECT_TRUE(m_NegatedPower2().match(CNegIntMin));
763
764 EXPECT_TRUE(m_NegatedPower2OrZero().match(CIntMin));
765 EXPECT_TRUE(m_NegatedPower2OrZero().match(CNegIntMin));
766
767 Value *CZero = IRB.getInt64(0);
768
769 EXPECT_FALSE(m_Power2().match(CZero));
770
771 EXPECT_TRUE(m_Power2OrZero().match(CZero));
772
773 EXPECT_FALSE(m_NegatedPower2().match(CZero));
774
775 EXPECT_TRUE(m_NegatedPower2OrZero().match(CZero));
776 }
777
778 TEST_F(PatternMatchTest, Not) {
779 Value *C1 = IRB.getInt32(1);
780 Value *C2 = IRB.getInt32(2);
781 Value *C3 = IRB.getInt32(3);
782 Instruction *Not = BinaryOperator::CreateXor(C1, C2);
783
784 // When `m_Not` does not match the `not` itself,
785 // it should not try to apply the inner matcher.
786 Value *Val = C3;
787 EXPECT_FALSE(m_Not(m_Value(Val)).match(Not));
788 EXPECT_EQ(Val, C3);
789 Not->deleteValue();
790 }
791
792 TEST_F(PatternMatchTest, CommutativeDeferredValue) {
793 Value *X = IRB.getInt32(1);
794 Value *Y = IRB.getInt32(2);
795
796 {
797 Value *tX = X;
798 EXPECT_TRUE(match(X, m_Deferred(tX)));
799 EXPECT_FALSE(match(Y, m_Deferred(tX)));
800 }
801 {
802 const Value *tX = X;
803 EXPECT_TRUE(match(X, m_Deferred(tX)));
804 EXPECT_FALSE(match(Y, m_Deferred(tX)));
805 }
806 {
807 Value *const tX = X;
808 EXPECT_TRUE(match(X, m_Deferred(tX)));
809 EXPECT_FALSE(match(Y, m_Deferred(tX)));
810 }
811 {
812 const Value *const tX = X;
813 EXPECT_TRUE(match(X, m_Deferred(tX)));
814 EXPECT_FALSE(match(Y, m_Deferred(tX)));
815 }
816
817 {
818 Value *tX = nullptr;
819 EXPECT_TRUE(match(IRB.CreateAnd(X, X), m_And(m_Value(tX), m_Deferred(tX))));
820 EXPECT_EQ(tX, X);
821 }
822 {
823 Value *tX = nullptr;
824 EXPECT_FALSE(
825 match(IRB.CreateAnd(X, Y), m_c_And(m_Value(tX), m_Deferred(tX))));
826 }
827
828 auto checkMatch = [X, Y](Value *Pattern) {
829 Value *tX = nullptr, *tY = nullptr;
830 EXPECT_TRUE(match(
831 Pattern, m_c_And(m_Value(tX), m_c_And(m_Deferred(tX), m_Value(tY)))));
832 EXPECT_EQ(tX, X);
833 EXPECT_EQ(tY, Y);
834 };
835
836 checkMatch(IRB.CreateAnd(X, IRB.CreateAnd(X, Y)));
837 checkMatch(IRB.CreateAnd(X, IRB.CreateAnd(Y, X)));
838 checkMatch(IRB.CreateAnd(IRB.CreateAnd(X, Y), X));
839 checkMatch(IRB.CreateAnd(IRB.CreateAnd(Y, X), X));
840 }
841
842 TEST_F(PatternMatchTest, FloatingPointOrderedMin) {
843 Type *FltTy = IRB.getFloatTy();
844 Value *L = ConstantFP::get(FltTy, 1.0);
845 Value *R = ConstantFP::get(FltTy, 2.0);
846 Value *MatchL, *MatchR;
847
848 // Test OLT.
849 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR))
850 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), L, R)));
851 EXPECT_EQ(L, MatchL);
852 EXPECT_EQ(R, MatchR);
853
854 // Test OLE.
855 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR))
856 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), L, R)));
857 EXPECT_EQ(L, MatchL);
858 EXPECT_EQ(R, MatchR);
859
860 // Test no match on OGE.
861 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR))
862 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), L, R)));
863
864 // Test no match on OGT.
865 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR))
866 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), L, R)));
867
868 // Test inverted selects. Note, that this "inverts" the ordering, e.g.:
869 // %cmp = fcmp oge L, R
870 // %min = select %cmp R, L
871 // Given L == NaN
872 // the above is expanded to %cmp == false ==> %min = L
873 // which is true for UnordFMin, not OrdFMin, so test that:
874
875 // [OU]GE with inverted select.
876 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR))
877 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), R, L)));
878 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR))
879 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), R, L)));
880 EXPECT_EQ(L, MatchL);
881 EXPECT_EQ(R, MatchR);
882
883 // [OU]GT with inverted select.
884 EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR))
885 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), R, L)));
886 EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR))
887 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), R, L)));
888 EXPECT_EQ(L, MatchL);
889 EXPECT_EQ(R, MatchR);
890 }
891
892 TEST_F(PatternMatchTest, FloatingPointOrderedMax) {
893 Type *FltTy = IRB.getFloatTy();
894 Value *L = ConstantFP::get(FltTy, 1.0);
895 Value *R = ConstantFP::get(FltTy, 2.0);
896 Value *MatchL, *MatchR;
897
898 // Test OGT.
899 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR))
900 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), L, R)));
901 EXPECT_EQ(L, MatchL);
902 EXPECT_EQ(R, MatchR);
903
904 // Test OGE.
905 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR))
906 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), L, R)));
907 EXPECT_EQ(L, MatchL);
908 EXPECT_EQ(R, MatchR);
909
910 // Test no match on OLE.
911 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR))
912 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), L, R)));
913
914 // Test no match on OLT.
915 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR))
916 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), L, R)));
917
918
919 // Test inverted selects. Note, that this "inverts" the ordering, e.g.:
920 // %cmp = fcmp ole L, R
921 // %max = select %cmp, R, L
922 // Given L == NaN,
923 // the above is expanded to %cmp == false ==> %max == L
924 // which is true for UnordFMax, not OrdFMax, so test that:
925
926 // [OU]LE with inverted select.
927 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR))
928 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), R, L)));
929 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR))
930 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), R, L)));
931 EXPECT_EQ(L, MatchL);
932 EXPECT_EQ(R, MatchR);
933
934 // [OUT]LT with inverted select.
935 EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR))
936 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), R, L)));
937 EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR))
938 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), R, L)));
939 EXPECT_EQ(L, MatchL);
940 EXPECT_EQ(R, MatchR);
941 }
942
943 TEST_F(PatternMatchTest, FloatingPointUnorderedMin) {
944 Type *FltTy = IRB.getFloatTy();
945 Value *L = ConstantFP::get(FltTy, 1.0);
946 Value *R = ConstantFP::get(FltTy, 2.0);
947 Value *MatchL, *MatchR;
948
949 // Test ULT.
950 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR))
951 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), L, R)));
952 EXPECT_EQ(L, MatchL);
953 EXPECT_EQ(R, MatchR);
954
955 // Test ULE.
956 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR))
957 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), L, R)));
958 EXPECT_EQ(L, MatchL);
959 EXPECT_EQ(R, MatchR);
960
961 // Test no match on UGE.
962 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR))
963 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), L, R)));
964
965 // Test no match on UGT.
966 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR))
967 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), L, R)));
968
969 // Test inverted selects. Note, that this "inverts" the ordering, e.g.:
970 // %cmp = fcmp uge L, R
971 // %min = select %cmp R, L
972 // Given L == NaN
973 // the above is expanded to %cmp == true ==> %min = R
974 // which is true for OrdFMin, not UnordFMin, so test that:
975
976 // [UO]GE with inverted select.
977 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR))
978 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), R, L)));
979 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR))
980 .match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), R, L)));
981 EXPECT_EQ(L, MatchL);
982 EXPECT_EQ(R, MatchR);
983
984 // [UO]GT with inverted select.
985 EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR))
986 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), R, L)));
987 EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR))
988 .match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), R, L)));
989 EXPECT_EQ(L, MatchL);
990 EXPECT_EQ(R, MatchR);
991 }
992
993 TEST_F(PatternMatchTest, FloatingPointUnorderedMax) {
994 Type *FltTy = IRB.getFloatTy();
995 Value *L = ConstantFP::get(FltTy, 1.0);
996 Value *R = ConstantFP::get(FltTy, 2.0);
997 Value *MatchL, *MatchR;
998
999 // Test UGT.
1000 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR))
1001 .match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), L, R)));
1002 EXPECT_EQ(L, MatchL);
1003 EXPECT_EQ(R, MatchR);
1004
1005 // Test UGE.
1006 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR))
1007 .match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), L, R)));
1008 EXPECT_EQ(L, MatchL);
1009 EXPECT_EQ(R, MatchR);
1010
1011 // Test no match on ULE.
1012 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR))
1013 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), L, R)));
1014
1015 // Test no match on ULT.
1016 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR))
1017 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), L, R)));
1018
1019 // Test inverted selects. Note, that this "inverts" the ordering, e.g.:
1020 // %cmp = fcmp ule L, R
1021 // %max = select %cmp R, L
1022 // Given L == NaN
1023 // the above is expanded to %cmp == true ==> %max = R
1024 // which is true for OrdFMax, not UnordFMax, so test that:
1025
1026 // [UO]LE with inverted select.
1027 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR))
1028 .match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), R, L)));
1029 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR))
1030 .match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), R, L)));
1031 EXPECT_EQ(L, MatchL);
1032 EXPECT_EQ(R, MatchR);
1033
1034 // [UO]LT with inverted select.
1035 EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR))
1036 .match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), R, L)));
1037 EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR))
1038 .match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), R, L)));
1039 EXPECT_EQ(L, MatchL);
1040 EXPECT_EQ(R, MatchR);
1041 }
1042
1043 TEST_F(PatternMatchTest, OverflowingBinOps) {
1044 Value *L = IRB.getInt32(1);
1045 Value *R = IRB.getInt32(2);
1046 Value *MatchL, *MatchR;
1047
1048 EXPECT_TRUE(
1049 m_NSWAdd(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWAdd(L, R)));
1050 EXPECT_EQ(L, MatchL);
1051 EXPECT_EQ(R, MatchR);
1052 MatchL = MatchR = nullptr;
1053 EXPECT_TRUE(
1054 m_NSWSub(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWSub(L, R)));
1055 EXPECT_EQ(L, MatchL);
1056 EXPECT_EQ(R, MatchR);
1057 MatchL = MatchR = nullptr;
1058 EXPECT_TRUE(
1059 m_NSWMul(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWMul(L, R)));
1060 EXPECT_EQ(L, MatchL);
1061 EXPECT_EQ(R, MatchR);
1062 MatchL = MatchR = nullptr;
1063 EXPECT_TRUE(m_NSWShl(m_Value(MatchL), m_Value(MatchR)).match(
1064 IRB.CreateShl(L, R, "", /* NUW */ false, /* NSW */ true)));
1065 EXPECT_EQ(L, MatchL);
1066 EXPECT_EQ(R, MatchR);
1067
1068 EXPECT_TRUE(
1069 m_NUWAdd(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWAdd(L, R)));
1070 EXPECT_EQ(L, MatchL);
1071 EXPECT_EQ(R, MatchR);
1072 MatchL = MatchR = nullptr;
1073
1074 EXPECT_TRUE(
1075 m_c_NUWAdd(m_Specific(L), m_Specific(R)).match(IRB.CreateNUWAdd(L, R)));
1076 EXPECT_TRUE(
1077 m_c_NUWAdd(m_Specific(R), m_Specific(L)).match(IRB.CreateNUWAdd(L, R)));
1078 EXPECT_FALSE(
1079 m_c_NUWAdd(m_Specific(R), m_ZeroInt()).match(IRB.CreateNUWAdd(L, R)));
1080 EXPECT_FALSE(
1081 m_NUWAdd(m_Specific(R), m_Specific(L)).match(IRB.CreateNUWAdd(L, R)));
1082
1083 EXPECT_TRUE(
1084 m_NUWSub(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWSub(L, R)));
1085 EXPECT_EQ(L, MatchL);
1086 EXPECT_EQ(R, MatchR);
1087 MatchL = MatchR = nullptr;
1088 EXPECT_TRUE(
1089 m_NUWMul(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWMul(L, R)));
1090 EXPECT_EQ(L, MatchL);
1091 EXPECT_EQ(R, MatchR);
1092 MatchL = MatchR = nullptr;
1093 EXPECT_TRUE(m_NUWShl(m_Value(MatchL), m_Value(MatchR)).match(
1094 IRB.CreateShl(L, R, "", /* NUW */ true, /* NSW */ false)));
1095 EXPECT_EQ(L, MatchL);
1096 EXPECT_EQ(R, MatchR);
1097
1098 EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateAdd(L, R)));
1099 EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R)));
1100 EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateNSWSub(L, R)));
1101 EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateSub(L, R)));
1102 EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateNUWSub(L, R)));
1103 EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R)));
1104 EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateMul(L, R)));
1105 EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateNUWMul(L, R)));
1106 EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R)));
1107 EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match(IRB.CreateShl(L, R)));
1108 EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match(
1109 IRB.CreateShl(L, R, "", /* NUW */ true, /* NSW */ false)));
1110 EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R)));
1111
1112 EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateAdd(L, R)));
1113 EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R)));
1114 EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateNUWSub(L, R)));
1115 EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateSub(L, R)));
1116 EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateNSWSub(L, R)));
1117 EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R)));
1118 EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateMul(L, R)));
1119 EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateNSWMul(L, R)));
1120 EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R)));
1121 EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match(IRB.CreateShl(L, R)));
1122 EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match(
1123 IRB.CreateShl(L, R, "", /* NUW */ false, /* NSW */ true)));
1124 EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R)));
1125 }
1126
1127 TEST_F(PatternMatchTest, LoadStoreOps) {
1128 // Create this load/store sequence:
1129 //
1130 // %p = alloca i32*
1131 // %0 = load i32*, i32** %p
1132 // store i32 42, i32* %0
1133
1134 Value *Alloca = IRB.CreateAlloca(IRB.getInt32Ty());
1135 Value *LoadInst = IRB.CreateLoad(IRB.getInt32Ty(), Alloca);
1136 Value *FourtyTwo = IRB.getInt32(42);
1137 Value *StoreInst = IRB.CreateStore(FourtyTwo, Alloca);
1138 Value *MatchLoad, *MatchStoreVal, *MatchStorePointer;
1139
1140 EXPECT_TRUE(m_Load(m_Value(MatchLoad)).match(LoadInst));
1141 EXPECT_EQ(Alloca, MatchLoad);
1142
1143 EXPECT_TRUE(m_Load(m_Specific(Alloca)).match(LoadInst));
1144
1145 EXPECT_FALSE(m_Load(m_Value(MatchLoad)).match(Alloca));
1146
1147 EXPECT_TRUE(m_Store(m_Value(MatchStoreVal), m_Value(MatchStorePointer))
1148 .match(StoreInst));
1149 EXPECT_EQ(FourtyTwo, MatchStoreVal);
1150 EXPECT_EQ(Alloca, MatchStorePointer);
1151
1152 EXPECT_FALSE(m_Store(m_Value(MatchStoreVal), m_Value(MatchStorePointer))
1153 .match(Alloca));
1154
1155 EXPECT_TRUE(m_Store(m_SpecificInt(42), m_Specific(Alloca))
1156 .match(StoreInst));
1157 EXPECT_FALSE(m_Store(m_SpecificInt(42), m_Specific(FourtyTwo))
1158 .match(StoreInst));
1159 EXPECT_FALSE(m_Store(m_SpecificInt(43), m_Specific(Alloca))
1160 .match(StoreInst));
1161 }
1162
1163 TEST_F(PatternMatchTest, VectorOps) {
1164 // Build up small tree of vector operations
1165 //
1166 // Val = 0 + 1
1167 // Val2 = Val + 3
1168 // VI1 = insertelement <2 x i8> undef, i8 1, i32 0 = <1, undef>
1169 // VI2 = insertelement <2 x i8> %VI1, i8 %Val2, i8 %Val = <1, 4>
1170 // VI3 = insertelement <2 x i8> %VI1, i8 %Val2, i32 1 = <1, 4>
1171 // VI4 = insertelement <2 x i8> %VI1, i8 2, i8 %Val = <1, 2>
1172 //
1173 // SI1 = shufflevector <2 x i8> %VI1, <2 x i8> undef, zeroinitializer
1174 // SI2 = shufflevector <2 x i8> %VI3, <2 x i8> %VI4, <2 x i8> <i8 0, i8 2>
1175 // SI3 = shufflevector <2 x i8> %VI3, <2 x i8> undef, zeroinitializer
1176 // SI4 = shufflevector <2 x i8> %VI4, <2 x i8> undef, zeroinitializer
1177 //
1178 // SP1 = VectorSplat(2, i8 2)
1179 // SP2 = VectorSplat(2, i8 %Val)
1180 Type *VecTy = FixedVectorType::get(IRB.getInt8Ty(), 2);
1181 Type *i32 = IRB.getInt32Ty();
1182 Type *i32VecTy = FixedVectorType::get(i32, 2);
1183
1184 Value *Val = IRB.CreateAdd(IRB.getInt8(0), IRB.getInt8(1));
1185 Value *Val2 = IRB.CreateAdd(Val, IRB.getInt8(3));
1186
1187 SmallVector<Constant *, 2> VecElemIdxs;
1188 VecElemIdxs.push_back(ConstantInt::get(i32, 0));
1189 VecElemIdxs.push_back(ConstantInt::get(i32, 2));
1190 auto *IdxVec = ConstantVector::get(VecElemIdxs);
1191
1192 Value *VI1 = IRB.CreateInsertElement(VecTy, IRB.getInt8(1), (uint64_t)0);
1193 Value *VI2 = IRB.CreateInsertElement(VI1, Val2, Val);
1194 Value *VI3 = IRB.CreateInsertElement(VI1, Val2, (uint64_t)1);
1195 Value *VI4 = IRB.CreateInsertElement(VI1, IRB.getInt8(2), Val);
1196
1197 Value *EX1 = IRB.CreateExtractElement(VI4, Val);
1198 Value *EX2 = IRB.CreateExtractElement(VI4, (uint64_t)0);
1199 Value *EX3 = IRB.CreateExtractElement(IdxVec, (uint64_t)1);
1200
1201 Constant *Zero = ConstantAggregateZero::get(i32VecTy);
1202 SmallVector<int, 16> ZeroMask;
1203 ShuffleVectorInst::getShuffleMask(Zero, ZeroMask);
1204
1205 Value *SI1 = IRB.CreateShuffleVector(VI1, ZeroMask);
1206 Value *SI2 = IRB.CreateShuffleVector(VI3, VI4, IdxVec);
1207 Value *SI3 = IRB.CreateShuffleVector(VI3, ZeroMask);
1208 Value *SI4 = IRB.CreateShuffleVector(VI4, ZeroMask);
1209
1210 Value *SP1 = IRB.CreateVectorSplat(2, IRB.getInt8(2));
1211 Value *SP2 = IRB.CreateVectorSplat(2, Val);
1212
1213 Value *A = nullptr, *B = nullptr, *C = nullptr;
1214
1215 // Test matching insertelement
1216 EXPECT_TRUE(match(VI1, m_InsertElt(m_Value(), m_Value(), m_Value())));
1217 EXPECT_TRUE(
1218 match(VI1, m_InsertElt(m_Undef(), m_ConstantInt(), m_ConstantInt())));
1219 EXPECT_TRUE(
1220 match(VI1, m_InsertElt(m_Undef(), m_ConstantInt(), m_Zero())));
1221 EXPECT_TRUE(
1222 match(VI1, m_InsertElt(m_Undef(), m_SpecificInt(1), m_Zero())));
1223 EXPECT_TRUE(match(VI2, m_InsertElt(m_Value(), m_Value(), m_Value())));
1224 EXPECT_FALSE(
1225 match(VI2, m_InsertElt(m_Value(), m_Value(), m_ConstantInt())));
1226 EXPECT_FALSE(
1227 match(VI2, m_InsertElt(m_Value(), m_ConstantInt(), m_Value())));
1228 EXPECT_FALSE(match(VI2, m_InsertElt(m_Constant(), m_Value(), m_Value())));
1229 EXPECT_TRUE(match(VI3, m_InsertElt(m_Value(A), m_Value(B), m_Value(C))));
1230 EXPECT_TRUE(A == VI1);
1231 EXPECT_TRUE(B == Val2);
1232 EXPECT_TRUE(isa<ConstantInt>(C));
1233 A = B = C = nullptr; // reset
1234
1235 // Test matching extractelement
1236 EXPECT_TRUE(match(EX1, m_ExtractElt(m_Value(A), m_Value(B))));
1237 EXPECT_TRUE(A == VI4);
1238 EXPECT_TRUE(B == Val);
1239 A = B = C = nullptr; // reset
1240 EXPECT_FALSE(match(EX1, m_ExtractElt(m_Value(), m_ConstantInt())));
1241 EXPECT_TRUE(match(EX2, m_ExtractElt(m_Value(), m_ConstantInt())));
1242 EXPECT_TRUE(match(EX3, m_ExtractElt(m_Constant(), m_ConstantInt())));
1243
1244 // Test matching shufflevector
1245 ArrayRef<int> Mask;
1246 EXPECT_TRUE(match(SI1, m_Shuffle(m_Value(), m_Undef(), m_ZeroMask())));
1247 EXPECT_TRUE(match(SI2, m_Shuffle(m_Value(A), m_Value(B), m_Mask(Mask))));
1248 EXPECT_TRUE(A == VI3);
1249 EXPECT_TRUE(B == VI4);
1250 A = B = C = nullptr; // reset
1251
1252 // Test matching the vector splat pattern
1253 EXPECT_TRUE(match(
1254 SI1,
1255 m_Shuffle(m_InsertElt(m_Undef(), m_SpecificInt(1), m_Zero()),
1256 m_Undef(), m_ZeroMask())));
1257 EXPECT_FALSE(match(
1258 SI3, m_Shuffle(m_InsertElt(m_Undef(), m_Value(), m_Zero()),
1259 m_Undef(), m_ZeroMask())));
1260 EXPECT_FALSE(match(
1261 SI4, m_Shuffle(m_InsertElt(m_Undef(), m_Value(), m_Zero()),
1262 m_Undef(), m_ZeroMask())));
1263 EXPECT_TRUE(match(
1264 SP1,
1265 m_Shuffle(m_InsertElt(m_Undef(), m_SpecificInt(2), m_Zero()),
1266 m_Undef(), m_ZeroMask())));
1267 EXPECT_TRUE(match(
1268 SP2, m_Shuffle(m_InsertElt(m_Undef(), m_Value(A), m_Zero()),
1269 m_Undef(), m_ZeroMask())));
1270 EXPECT_TRUE(A == Val);
1271 }
1272
1273 TEST_F(PatternMatchTest, UndefPoisonMix) {
1274 Type *ScalarTy = IRB.getInt8Ty();
1275 ArrayType *ArrTy = ArrayType::get(ScalarTy, 2);
1276 StructType *StTy = StructType::get(ScalarTy, ScalarTy);
1277 StructType *StTy2 = StructType::get(ScalarTy, StTy);
1278 StructType *StTy3 = StructType::get(StTy, ScalarTy);
1279 Constant *Zero = ConstantInt::getNullValue(ScalarTy);
1280 UndefValue *U = UndefValue::get(ScalarTy);
1281 UndefValue *P = PoisonValue::get(ScalarTy);
1282
1283 EXPECT_TRUE(match(ConstantVector::get({U, P}), m_Undef()));
1284 EXPECT_TRUE(match(ConstantVector::get({P, U}), m_Undef()));
1285
1286 EXPECT_TRUE(match(ConstantArray::get(ArrTy, {U, P}), m_Undef()));
1287 EXPECT_TRUE(match(ConstantArray::get(ArrTy, {P, U}), m_Undef()));
1288
1289 auto *UP = ConstantStruct::get(StTy, {U, P});
1290 EXPECT_TRUE(match(ConstantStruct::get(StTy2, {U, UP}), m_Undef()));
1291 EXPECT_TRUE(match(ConstantStruct::get(StTy2, {P, UP}), m_Undef()));
1292 EXPECT_TRUE(match(ConstantStruct::get(StTy3, {UP, U}), m_Undef()));
1293 EXPECT_TRUE(match(ConstantStruct::get(StTy3, {UP, P}), m_Undef()));
1294
1295 EXPECT_FALSE(match(ConstantStruct::get(StTy, {U, Zero}), m_Undef()));
1296 EXPECT_FALSE(match(ConstantStruct::get(StTy, {Zero, U}), m_Undef()));
1297 EXPECT_FALSE(match(ConstantStruct::get(StTy, {P, Zero}), m_Undef()));
1298 EXPECT_FALSE(match(ConstantStruct::get(StTy, {Zero, P}), m_Undef()));
1299
1300 EXPECT_FALSE(match(ConstantStruct::get(StTy2, {Zero, UP}), m_Undef()));
1301 EXPECT_FALSE(match(ConstantStruct::get(StTy3, {UP, Zero}), m_Undef()));
1302 }
1303
1304 TEST_F(PatternMatchTest, VectorUndefInt) {
1305 Type *ScalarTy = IRB.getInt8Ty();
1306 Type *VectorTy = FixedVectorType::get(ScalarTy, 4);
1307 Constant *ScalarUndef = UndefValue::get(ScalarTy);
1308 Constant *VectorUndef = UndefValue::get(VectorTy);
1309 Constant *ScalarPoison = PoisonValue::get(ScalarTy);
1310 Constant *VectorPoison = PoisonValue::get(VectorTy);
1311 Constant *ScalarZero = Constant::getNullValue(ScalarTy);
1312 Constant *VectorZero = Constant::getNullValue(VectorTy);
1313
1314 SmallVector<Constant *, 4> Elems;
1315 Elems.push_back(ScalarUndef);
1316 Elems.push_back(ScalarZero);
1317 Elems.push_back(ScalarUndef);
1318 Elems.push_back(ScalarZero);
1319 Constant *VectorZeroUndef = ConstantVector::get(Elems);
1320
1321 SmallVector<Constant *, 4> Elems2;
1322 Elems2.push_back(ScalarPoison);
1323 Elems2.push_back(ScalarZero);
1324 Elems2.push_back(ScalarPoison);
1325 Elems2.push_back(ScalarZero);
1326 Constant *VectorZeroPoison = ConstantVector::get(Elems2);
1327
1328 EXPECT_TRUE(match(ScalarUndef, m_Undef()));
1329 EXPECT_TRUE(match(ScalarPoison, m_Undef()));
1330 EXPECT_TRUE(match(VectorUndef, m_Undef()));
1331 EXPECT_TRUE(match(VectorPoison, m_Undef()));
1332 EXPECT_FALSE(match(ScalarZero, m_Undef()));
1333 EXPECT_FALSE(match(VectorZero, m_Undef()));
1334 EXPECT_FALSE(match(VectorZeroUndef, m_Undef()));
1335 EXPECT_FALSE(match(VectorZeroPoison, m_Undef()));
1336
1337 EXPECT_FALSE(match(ScalarUndef, m_Zero()));
1338 EXPECT_FALSE(match(ScalarPoison, m_Zero()));
1339 EXPECT_FALSE(match(VectorUndef, m_Zero()));
1340 EXPECT_FALSE(match(VectorPoison, m_Zero()));
1341 EXPECT_FALSE(match(VectorZeroUndef, m_Zero()));
1342 EXPECT_TRUE(match(ScalarZero, m_Zero()));
1343 EXPECT_TRUE(match(VectorZero, m_Zero()));
1344 EXPECT_TRUE(match(VectorZeroPoison, m_Zero()));
1345
1346 const APInt *C;
1347 // Regardless of whether poison is allowed,
1348 // a fully undef/poison constant does not match.
1349 EXPECT_FALSE(match(ScalarUndef, m_APInt(C)));
1350 EXPECT_FALSE(match(ScalarUndef, m_APIntForbidPoison(C)));
1351 EXPECT_FALSE(match(ScalarUndef, m_APIntAllowPoison(C)));
1352 EXPECT_FALSE(match(VectorUndef, m_APInt(C)));
1353 EXPECT_FALSE(match(VectorUndef, m_APIntForbidPoison(C)));
1354 EXPECT_FALSE(match(VectorUndef, m_APIntAllowPoison(C)));
1355 EXPECT_FALSE(match(ScalarPoison, m_APInt(C)));
1356 EXPECT_FALSE(match(ScalarPoison, m_APIntForbidPoison(C)));
1357 EXPECT_FALSE(match(ScalarPoison, m_APIntAllowPoison(C)));
1358 EXPECT_FALSE(match(VectorPoison, m_APInt(C)));
1359 EXPECT_FALSE(match(VectorPoison, m_APIntForbidPoison(C)));
1360 EXPECT_FALSE(match(VectorPoison, m_APIntAllowPoison(C)));
1361
1362 // We can always match simple constants and simple splats.
1363 C = nullptr;
1364 EXPECT_TRUE(match(ScalarZero, m_APInt(C)));
1365 EXPECT_TRUE(C->isZero());
1366 C = nullptr;
1367 EXPECT_TRUE(match(ScalarZero, m_APIntForbidPoison(C)));
1368 EXPECT_TRUE(C->isZero());
1369 C = nullptr;
1370 EXPECT_TRUE(match(ScalarZero, m_APIntAllowPoison(C)));
1371 EXPECT_TRUE(C->isZero());
1372 C = nullptr;
1373 EXPECT_TRUE(match(VectorZero, m_APInt(C)));
1374 EXPECT_TRUE(C->isZero());
1375 C = nullptr;
1376 EXPECT_TRUE(match(VectorZero, m_APIntForbidPoison(C)));
1377 EXPECT_TRUE(C->isZero());
1378 C = nullptr;
1379 EXPECT_TRUE(match(VectorZero, m_APIntAllowPoison(C)));
1380 EXPECT_TRUE(C->isZero());
1381
1382 // Splats with undef are never allowed.
1383 // Whether splats with poison can be matched depends on the matcher.
1384 EXPECT_FALSE(match(VectorZeroUndef, m_APInt(C)));
1385 EXPECT_FALSE(match(VectorZeroUndef, m_APIntForbidPoison(C)));
1386 EXPECT_FALSE(match(VectorZeroUndef, m_APIntAllowPoison(C)));
1387
1388 EXPECT_FALSE(match(VectorZeroPoison, m_APInt(C)));
1389 EXPECT_FALSE(match(VectorZeroPoison, m_APIntForbidPoison(C)));
1390 C = nullptr;
1391 EXPECT_TRUE(match(VectorZeroPoison, m_APIntAllowPoison(C)));
1392 EXPECT_TRUE(C->isZero());
1393 }
1394
1395 TEST_F(PatternMatchTest, VectorUndefFloat) {
1396 Type *ScalarTy = IRB.getFloatTy();
1397 Type *VectorTy = FixedVectorType::get(ScalarTy, 4);
1398 Constant *ScalarUndef = UndefValue::get(ScalarTy);
1399 Constant *VectorUndef = UndefValue::get(VectorTy);
1400 Constant *ScalarPoison = PoisonValue::get(ScalarTy);
1401 Constant *VectorPoison = PoisonValue::get(VectorTy);
1402 Constant *ScalarZero = Constant::getNullValue(ScalarTy);
1403 Constant *VectorZero = Constant::getNullValue(VectorTy);
1404 Constant *ScalarPosInf = ConstantFP::getInfinity(ScalarTy, false);
1405 Constant *ScalarNegInf = ConstantFP::getInfinity(ScalarTy, true);
1406 Constant *ScalarNaN = ConstantFP::getNaN(ScalarTy, true);
1407
1408 Constant *VectorZeroUndef =
1409 ConstantVector::get({ScalarUndef, ScalarZero, ScalarUndef, ScalarZero});
1410
1411 Constant *VectorZeroPoison =
1412 ConstantVector::get({ScalarPoison, ScalarZero, ScalarPoison, ScalarZero});
1413
1414 Constant *VectorInfUndef = ConstantVector::get(
1415 {ScalarPosInf, ScalarNegInf, ScalarUndef, ScalarPosInf});
1416
1417 Constant *VectorInfPoison = ConstantVector::get(
1418 {ScalarPosInf, ScalarNegInf, ScalarPoison, ScalarPosInf});
1419
1420 Constant *VectorNaNUndef =
1421 ConstantVector::get({ScalarUndef, ScalarNaN, ScalarNaN, ScalarNaN});
1422
1423 Constant *VectorNaNPoison =
1424 ConstantVector::get({ScalarPoison, ScalarNaN, ScalarNaN, ScalarNaN});
1425
1426 EXPECT_TRUE(match(ScalarUndef, m_Undef()));
1427 EXPECT_TRUE(match(VectorUndef, m_Undef()));
1428 EXPECT_TRUE(match(ScalarPoison, m_Undef()));
1429 EXPECT_TRUE(match(VectorPoison, m_Undef()));
1430 EXPECT_FALSE(match(ScalarZero, m_Undef()));
1431 EXPECT_FALSE(match(VectorZero, m_Undef()));
1432 EXPECT_FALSE(match(VectorZeroUndef, m_Undef()));
1433 EXPECT_FALSE(match(VectorInfUndef, m_Undef()));
1434 EXPECT_FALSE(match(VectorNaNUndef, m_Undef()));
1435 EXPECT_FALSE(match(VectorZeroPoison, m_Undef()));
1436 EXPECT_FALSE(match(VectorInfPoison, m_Undef()));
1437 EXPECT_FALSE(match(VectorNaNPoison, m_Undef()));
1438
1439 EXPECT_FALSE(match(ScalarUndef, m_AnyZeroFP()));
1440 EXPECT_FALSE(match(VectorUndef, m_AnyZeroFP()));
1441 EXPECT_FALSE(match(ScalarPoison, m_AnyZeroFP()));
1442 EXPECT_FALSE(match(VectorPoison, m_AnyZeroFP()));
1443 EXPECT_TRUE(match(ScalarZero, m_AnyZeroFP()));
1444 EXPECT_TRUE(match(VectorZero, m_AnyZeroFP()));
1445 EXPECT_FALSE(match(VectorZeroUndef, m_AnyZeroFP()));
1446 EXPECT_FALSE(match(VectorInfUndef, m_AnyZeroFP()));
1447 EXPECT_FALSE(match(VectorNaNUndef, m_AnyZeroFP()));
1448 EXPECT_TRUE(match(VectorZeroPoison, m_AnyZeroFP()));
1449 EXPECT_FALSE(match(VectorInfPoison, m_AnyZeroFP()));
1450 EXPECT_FALSE(match(VectorNaNPoison, m_AnyZeroFP()));
1451
1452 EXPECT_FALSE(match(ScalarUndef, m_NaN()));
1453 EXPECT_FALSE(match(VectorUndef, m_NaN()));
1454 EXPECT_FALSE(match(VectorZeroUndef, m_NaN()));
1455 EXPECT_FALSE(match(ScalarPoison, m_NaN()));
1456 EXPECT_FALSE(match(VectorPoison, m_NaN()));
1457 EXPECT_FALSE(match(VectorZeroPoison, m_NaN()));
1458 EXPECT_FALSE(match(ScalarPosInf, m_NaN()));
1459 EXPECT_FALSE(match(ScalarNegInf, m_NaN()));
1460 EXPECT_TRUE(match(ScalarNaN, m_NaN()));
1461 EXPECT_FALSE(match(VectorInfUndef, m_NaN()));
1462 EXPECT_FALSE(match(VectorNaNUndef, m_NaN()));
1463 EXPECT_FALSE(match(VectorInfPoison, m_NaN()));
1464 EXPECT_TRUE(match(VectorNaNPoison, m_NaN()));
1465
1466 EXPECT_FALSE(match(ScalarUndef, m_NonNaN()));
1467 EXPECT_FALSE(match(VectorUndef, m_NonNaN()));
1468 EXPECT_FALSE(match(VectorZeroUndef, m_NonNaN()));
1469 EXPECT_FALSE(match(ScalarPoison, m_NonNaN()));
1470 EXPECT_FALSE(match(VectorPoison, m_NonNaN()));
1471 EXPECT_TRUE(match(VectorZeroPoison, m_NonNaN()));
1472 EXPECT_TRUE(match(ScalarPosInf, m_NonNaN()));
1473 EXPECT_TRUE(match(ScalarNegInf, m_NonNaN()));
1474 EXPECT_FALSE(match(ScalarNaN, m_NonNaN()));
1475 EXPECT_FALSE(match(VectorInfUndef, m_NonNaN()));
1476 EXPECT_FALSE(match(VectorNaNUndef, m_NonNaN()));
1477 EXPECT_TRUE(match(VectorInfPoison, m_NonNaN()));
1478 EXPECT_FALSE(match(VectorNaNPoison, m_NonNaN()));
1479
1480 EXPECT_FALSE(match(ScalarUndef, m_Inf()));
1481 EXPECT_FALSE(match(VectorUndef, m_Inf()));
1482 EXPECT_FALSE(match(VectorZeroUndef, m_Inf()));
1483 EXPECT_FALSE(match(ScalarPoison, m_Inf()));
1484 EXPECT_FALSE(match(VectorPoison, m_Inf()));
1485 EXPECT_FALSE(match(VectorZeroPoison, m_Inf()));
1486 EXPECT_TRUE(match(ScalarPosInf, m_Inf()));
1487 EXPECT_TRUE(match(ScalarNegInf, m_Inf()));
1488 EXPECT_FALSE(match(ScalarNaN, m_Inf()));
1489 EXPECT_FALSE(match(VectorInfUndef, m_Inf()));
1490 EXPECT_FALSE(match(VectorNaNUndef, m_Inf()));
1491 EXPECT_TRUE(match(VectorInfPoison, m_Inf()));
1492 EXPECT_FALSE(match(VectorNaNPoison, m_Inf()));
1493
1494 EXPECT_FALSE(match(ScalarUndef, m_NonInf()));
1495 EXPECT_FALSE(match(VectorUndef, m_NonInf()));
1496 EXPECT_FALSE(match(VectorZeroUndef, m_NonInf()));
1497 EXPECT_FALSE(match(ScalarPoison, m_NonInf()));
1498 EXPECT_FALSE(match(VectorPoison, m_NonInf()));
1499 EXPECT_TRUE(match(VectorZeroPoison, m_NonInf()));
1500 EXPECT_FALSE(match(ScalarPosInf, m_NonInf()));
1501 EXPECT_FALSE(match(ScalarNegInf, m_NonInf()));
1502 EXPECT_TRUE(match(ScalarNaN, m_NonInf()));
1503 EXPECT_FALSE(match(VectorInfUndef, m_NonInf()));
1504 EXPECT_FALSE(match(VectorNaNUndef, m_NonInf()));
1505 EXPECT_FALSE(match(VectorInfPoison, m_NonInf()));
1506 EXPECT_TRUE(match(VectorNaNPoison, m_NonInf()));
1507
1508 EXPECT_FALSE(match(ScalarUndef, m_Finite()));
1509 EXPECT_FALSE(match(VectorUndef, m_Finite()));
1510 EXPECT_FALSE(match(VectorZeroUndef, m_Finite()));
1511 EXPECT_FALSE(match(ScalarPoison, m_Finite()));
1512 EXPECT_FALSE(match(VectorPoison, m_Finite()));
1513 EXPECT_TRUE(match(VectorZeroPoison, m_Finite()));
1514 EXPECT_FALSE(match(ScalarPosInf, m_Finite()));
1515 EXPECT_FALSE(match(ScalarNegInf, m_Finite()));
1516 EXPECT_FALSE(match(ScalarNaN, m_Finite()));
1517 EXPECT_FALSE(match(VectorInfUndef, m_Finite()));
1518 EXPECT_FALSE(match(VectorNaNUndef, m_Finite()));
1519 EXPECT_FALSE(match(VectorInfPoison, m_Finite()));
1520 EXPECT_FALSE(match(VectorNaNPoison, m_Finite()));
1521
1522 auto CheckTrue = [](const APFloat &) { return true; };
1523 EXPECT_FALSE(match(VectorZeroUndef, m_CheckedFp(CheckTrue)));
1524 EXPECT_TRUE(match(VectorZeroPoison, m_CheckedFp(CheckTrue)));
1525 EXPECT_TRUE(match(ScalarPosInf, m_CheckedFp(CheckTrue)));
1526 EXPECT_TRUE(match(ScalarNegInf, m_CheckedFp(CheckTrue)));
1527 EXPECT_TRUE(match(ScalarNaN, m_CheckedFp(CheckTrue)));
1528 EXPECT_FALSE(match(VectorInfUndef, m_CheckedFp(CheckTrue)));
1529 EXPECT_TRUE(match(VectorInfPoison, m_CheckedFp(CheckTrue)));
1530 EXPECT_FALSE(match(VectorNaNUndef, m_CheckedFp(CheckTrue)));
1531 EXPECT_TRUE(match(VectorNaNPoison, m_CheckedFp(CheckTrue)));
1532
1533 auto CheckFalse = [](const APFloat &) { return false; };
1534 EXPECT_FALSE(match(VectorZeroUndef, m_CheckedFp(CheckFalse)));
1535 EXPECT_FALSE(match(VectorZeroPoison, m_CheckedFp(CheckFalse)));
1536 EXPECT_FALSE(match(ScalarPosInf, m_CheckedFp(CheckFalse)));
1537 EXPECT_FALSE(match(ScalarNegInf, m_CheckedFp(CheckFalse)));
1538 EXPECT_FALSE(match(ScalarNaN, m_CheckedFp(CheckFalse)));
1539 EXPECT_FALSE(match(VectorInfUndef, m_CheckedFp(CheckFalse)));
1540 EXPECT_FALSE(match(VectorInfPoison, m_CheckedFp(CheckFalse)));
1541 EXPECT_FALSE(match(VectorNaNUndef, m_CheckedFp(CheckFalse)));
1542 EXPECT_FALSE(match(VectorNaNPoison, m_CheckedFp(CheckFalse)));
1543
1544 auto CheckNonNaN = [](const APFloat &C) { return !C.isNaN(); };
1545 EXPECT_FALSE(match(VectorZeroUndef, m_CheckedFp(CheckNonNaN)));
1546 EXPECT_TRUE(match(VectorZeroPoison, m_CheckedFp(CheckNonNaN)));
1547 EXPECT_TRUE(match(ScalarPosInf, m_CheckedFp(CheckNonNaN)));
1548 EXPECT_TRUE(match(ScalarNegInf, m_CheckedFp(CheckNonNaN)));
1549 EXPECT_FALSE(match(ScalarNaN, m_CheckedFp(CheckNonNaN)));
1550 EXPECT_FALSE(match(VectorInfUndef, m_CheckedFp(CheckNonNaN)));
1551 EXPECT_TRUE(match(VectorInfPoison, m_CheckedFp(CheckNonNaN)));
1552 EXPECT_FALSE(match(VectorNaNUndef, m_CheckedFp(CheckNonNaN)));
1553 EXPECT_FALSE(match(VectorNaNPoison, m_CheckedFp(CheckNonNaN)));
1554
1555 const APFloat *C;
1556 const Constant *CC;
1557 // Regardless of whether poison is allowed,
1558 // a fully undef/poison constant does not match.
1559 EXPECT_FALSE(match(ScalarUndef, m_APFloat(C)));
1560 EXPECT_FALSE(match(ScalarUndef, m_APFloatForbidPoison(C)));
1561 EXPECT_FALSE(match(ScalarUndef, m_APFloatAllowPoison(C)));
1562 EXPECT_FALSE(match(ScalarUndef, m_CheckedFp(CC, CheckTrue)));
1563 EXPECT_FALSE(match(VectorUndef, m_APFloat(C)));
1564 EXPECT_FALSE(match(VectorUndef, m_APFloatForbidPoison(C)));
1565 EXPECT_FALSE(match(VectorUndef, m_APFloatAllowPoison(C)));
1566 EXPECT_FALSE(match(VectorUndef, m_CheckedFp(CC, CheckTrue)));
1567 EXPECT_FALSE(match(ScalarPoison, m_APFloat(C)));
1568 EXPECT_FALSE(match(ScalarPoison, m_APFloatForbidPoison(C)));
1569 EXPECT_FALSE(match(ScalarPoison, m_APFloatAllowPoison(C)));
1570 EXPECT_FALSE(match(ScalarPoison, m_CheckedFp(CC, CheckTrue)));
1571 EXPECT_FALSE(match(VectorPoison, m_APFloat(C)));
1572 EXPECT_FALSE(match(VectorPoison, m_APFloatForbidPoison(C)));
1573 EXPECT_FALSE(match(VectorPoison, m_APFloatAllowPoison(C)));
1574 EXPECT_FALSE(match(VectorPoison, m_CheckedFp(CC, CheckTrue)));
1575
1576 // We can always match simple constants and simple splats.
1577 C = nullptr;
1578 EXPECT_TRUE(match(ScalarZero, m_APFloat(C)));
1579 EXPECT_TRUE(C->isZero());
1580 C = nullptr;
1581 EXPECT_TRUE(match(ScalarZero, m_APFloatForbidPoison(C)));
1582 EXPECT_TRUE(C->isZero());
1583 C = nullptr;
1584 EXPECT_TRUE(match(ScalarZero, m_APFloatAllowPoison(C)));
1585 EXPECT_TRUE(C->isZero());
1586 C = nullptr;
1587 EXPECT_TRUE(match(VectorZero, m_APFloat(C)));
1588 EXPECT_TRUE(C->isZero());
1589 C = nullptr;
1590 EXPECT_TRUE(match(VectorZero, m_APFloatForbidPoison(C)));
1591 EXPECT_TRUE(C->isZero());
1592 C = nullptr;
1593 EXPECT_TRUE(match(VectorZero, m_APFloatAllowPoison(C)));
1594 EXPECT_TRUE(C->isZero());
1595
1596 CC = nullptr;
1597 EXPECT_TRUE(match(VectorZero, m_CheckedFp(CC, CheckTrue)));
1598 EXPECT_TRUE(CC->isNullValue());
1599 CC = nullptr;
1600 EXPECT_TRUE(match(VectorZero, m_CheckedFp(CC, CheckNonNaN)));
1601 EXPECT_TRUE(CC->isNullValue());
1602
1603 // Splats with undef are never allowed.
1604 // Whether splats with poison can be matched depends on the matcher.
1605 EXPECT_FALSE(match(VectorZeroUndef, m_APFloat(C)));
1606 EXPECT_FALSE(match(VectorZeroUndef, m_APFloatForbidPoison(C)));
1607 EXPECT_FALSE(match(VectorZeroUndef, m_APFloatAllowPoison(C)));
1608 EXPECT_FALSE(match(VectorZeroUndef, m_Finite(C)));
1609
1610 EXPECT_FALSE(match(VectorZeroPoison, m_APFloat(C)));
1611 EXPECT_FALSE(match(VectorZeroPoison, m_APFloatForbidPoison(C)));
1612 C = nullptr;
1613 EXPECT_TRUE(match(VectorZeroPoison, m_APFloatAllowPoison(C)));
1614 EXPECT_TRUE(C->isZero());
1615 C = nullptr;
1616 EXPECT_TRUE(match(VectorZeroPoison, m_Finite(C)));
1617 EXPECT_TRUE(C->isZero());
1618 EXPECT_FALSE(match(VectorZeroPoison, m_APFloat(C)));
1619 EXPECT_FALSE(match(VectorZeroPoison, m_APFloatForbidPoison(C)));
1620 C = nullptr;
1621 EXPECT_TRUE(match(VectorZeroPoison, m_APFloatAllowPoison(C)));
1622 EXPECT_TRUE(C->isZero());
1623 C = nullptr;
1624 EXPECT_TRUE(match(VectorZeroPoison, m_Finite(C)));
1625 EXPECT_TRUE(C->isZero());
1626 CC = nullptr;
1627 C = nullptr;
1628 EXPECT_TRUE(match(VectorZeroPoison, m_CheckedFp(CC, CheckTrue)));
1629 EXPECT_NE(CC, nullptr);
1630 EXPECT_TRUE(match(CC, m_APFloatAllowPoison(C)));
1631 EXPECT_TRUE(C->isZero());
1632 CC = nullptr;
1633 C = nullptr;
1634 EXPECT_TRUE(match(VectorZeroPoison, m_CheckedFp(CC, CheckNonNaN)));
1635 EXPECT_NE(CC, nullptr);
1636 EXPECT_TRUE(match(CC, m_APFloatAllowPoison(C)));
1637 EXPECT_TRUE(C->isZero());
1638 }
1639
1640 TEST_F(PatternMatchTest, FloatingPointFNeg) {
1641 Type *FltTy = IRB.getFloatTy();
1642 Value *One = ConstantFP::get(FltTy, 1.0);
1643 Value *Z = ConstantFP::get(FltTy, 0.0);
1644 Value *NZ = ConstantFP::get(FltTy, -0.0);
1645 Value *V = IRB.CreateFNeg(One);
1646 Value *V1 = IRB.CreateFSub(NZ, One);
1647 Value *V2 = IRB.CreateFSub(Z, One);
1648 Value *V3 = IRB.CreateFAdd(NZ, One);
1649 Value *Match;
1650
1651 // Test FNeg(1.0)
1652 EXPECT_TRUE(match(V, m_FNeg(m_Value(Match))));
1653 EXPECT_EQ(One, Match);
1654
1655 // Test FSub(-0.0, 1.0)
1656 EXPECT_TRUE(match(V1, m_FNeg(m_Value(Match))));
1657 EXPECT_EQ(One, Match);
1658
1659 // Test FSub(0.0, 1.0)
1660 EXPECT_FALSE(match(V2, m_FNeg(m_Value(Match))));
1661 cast<Instruction>(V2)->setHasNoSignedZeros(true);
1662 EXPECT_TRUE(match(V2, m_FNeg(m_Value(Match))));
1663 EXPECT_EQ(One, Match);
1664
1665 // Test FAdd(-0.0, 1.0)
1666 EXPECT_FALSE(match(V3, m_FNeg(m_Value(Match))));
1667 }
1668
1669 TEST_F(PatternMatchTest, CondBranchTest) {
1670 BasicBlock *TrueBB = BasicBlock::Create(Ctx, "TrueBB", F);
1671 BasicBlock *FalseBB = BasicBlock::Create(Ctx, "FalseBB", F);
1672 Value *Br1 = IRB.CreateCondBr(IRB.getTrue(), TrueBB, FalseBB);
1673
1674 EXPECT_TRUE(match(Br1, m_Br(m_Value(), m_BasicBlock(), m_BasicBlock())));
1675
1676 BasicBlock *A, *B;
1677 EXPECT_TRUE(match(Br1, m_Br(m_Value(), m_BasicBlock(A), m_BasicBlock(B))));
1678 EXPECT_EQ(TrueBB, A);
1679 EXPECT_EQ(FalseBB, B);
1680
1681 EXPECT_FALSE(
1682 match(Br1, m_Br(m_Value(), m_SpecificBB(FalseBB), m_BasicBlock())));
1683 EXPECT_FALSE(
1684 match(Br1, m_Br(m_Value(), m_BasicBlock(), m_SpecificBB(TrueBB))));
1685 EXPECT_FALSE(
1686 match(Br1, m_Br(m_Value(), m_SpecificBB(FalseBB), m_BasicBlock(TrueBB))));
1687 EXPECT_TRUE(
1688 match(Br1, m_Br(m_Value(), m_SpecificBB(TrueBB), m_BasicBlock(FalseBB))));
1689
1690 // Check we can use m_Deferred with branches.
1691 EXPECT_FALSE(match(Br1, m_Br(m_Value(), m_BasicBlock(A), m_Deferred(A))));
1692 Value *Br2 = IRB.CreateCondBr(IRB.getTrue(), TrueBB, TrueBB);
1693 A = nullptr;
1694 EXPECT_TRUE(match(Br2, m_Br(m_Value(), m_BasicBlock(A), m_Deferred(A))));
1695 }
1696
1697 TEST_F(PatternMatchTest, WithOverflowInst) {
1698 Value *Add = IRB.CreateBinaryIntrinsic(Intrinsic::uadd_with_overflow,
1699 IRB.getInt32(0), IRB.getInt32(0));
1700 Value *Add0 = IRB.CreateExtractValue(Add, 0);
1701 Value *Add1 = IRB.CreateExtractValue(Add, 1);
1702
1703 EXPECT_TRUE(match(Add0, m_ExtractValue<0>(m_Value())));
1704 EXPECT_FALSE(match(Add0, m_ExtractValue<1>(m_Value())));
1705 EXPECT_FALSE(match(Add1, m_ExtractValue<0>(m_Value())));
1706 EXPECT_TRUE(match(Add1, m_ExtractValue<1>(m_Value())));
1707 EXPECT_FALSE(match(Add, m_ExtractValue<1>(m_Value())));
1708 EXPECT_FALSE(match(Add, m_ExtractValue<1>(m_Value())));
1709
1710 WithOverflowInst *WOI;
1711 EXPECT_FALSE(match(Add0, m_WithOverflowInst(WOI)));
1712 EXPECT_FALSE(match(Add1, m_WithOverflowInst(WOI)));
1713 EXPECT_TRUE(match(Add, m_WithOverflowInst(WOI)));
1714
1715 EXPECT_TRUE(match(Add0, m_ExtractValue<0>(m_WithOverflowInst(WOI))));
1716 EXPECT_EQ(Add, WOI);
1717 EXPECT_TRUE(match(Add1, m_ExtractValue<1>(m_WithOverflowInst(WOI))));
1718 EXPECT_EQ(Add, WOI);
1719 }
1720
1721 TEST_F(PatternMatchTest, MinMaxIntrinsics) {
1722 Type *Ty = IRB.getInt32Ty();
1723 Value *L = ConstantInt::get(Ty, 1);
1724 Value *R = ConstantInt::get(Ty, 2);
1725 Value *MatchL, *MatchR;
1726
1727 // Check for intrinsic ID match and capture of operands.
1728 EXPECT_TRUE(m_SMax(m_Value(MatchL), m_Value(MatchR))
1729 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smax, L, R)));
1730 EXPECT_EQ(L, MatchL);
1731 EXPECT_EQ(R, MatchR);
1732
1733 EXPECT_TRUE(m_SMin(m_Value(MatchL), m_Value(MatchR))
1734 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smin, L, R)));
1735 EXPECT_EQ(L, MatchL);
1736 EXPECT_EQ(R, MatchR);
1737
1738 EXPECT_TRUE(m_UMax(m_Value(MatchL), m_Value(MatchR))
1739 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umax, L, R)));
1740 EXPECT_EQ(L, MatchL);
1741 EXPECT_EQ(R, MatchR);
1742
1743 EXPECT_TRUE(m_UMin(m_Value(MatchL), m_Value(MatchR))
1744 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umin, L, R)));
1745 EXPECT_EQ(L, MatchL);
1746 EXPECT_EQ(R, MatchR);
1747
1748 // Check for intrinsic ID mismatch.
1749 EXPECT_FALSE(m_SMax(m_Value(MatchL), m_Value(MatchR))
1750 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smin, L, R)));
1751 EXPECT_FALSE(m_SMin(m_Value(MatchL), m_Value(MatchR))
1752 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umax, L, R)));
1753 EXPECT_FALSE(m_UMax(m_Value(MatchL), m_Value(MatchR))
1754 .match(IRB.CreateBinaryIntrinsic(Intrinsic::umin, L, R)));
1755 EXPECT_FALSE(m_UMin(m_Value(MatchL), m_Value(MatchR))
1756 .match(IRB.CreateBinaryIntrinsic(Intrinsic::smax, L, R)));
1757 }
1758
1759 TEST_F(PatternMatchTest, IntrinsicMatcher) {
1760 Value *Name = IRB.CreateAlloca(IRB.getInt8Ty());
1761 Value *Hash = IRB.getInt64(0);
1762 Value *Num = IRB.getInt32(1);
1763 Value *Index = IRB.getInt32(2);
1764 Value *Step = IRB.getInt64(3);
1765
1766 Value *Ops[] = {Name, Hash, Num, Index, Step};
1767 Module *M = BB->getParent()->getParent();
1768 Function *TheFn =
1769 Intrinsic::getDeclaration(M, Intrinsic::instrprof_increment_step);
1770
1771 Value *Intrinsic5 = CallInst::Create(TheFn, Ops, "", BB);
1772
1773 // Match without capturing.
1774 EXPECT_TRUE(match(
1775 Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>(
1776 m_Value(), m_Value(), m_Value(), m_Value(), m_Value())));
1777 EXPECT_FALSE(match(
1778 Intrinsic5, m_Intrinsic<Intrinsic::memmove>(
1779 m_Value(), m_Value(), m_Value(), m_Value(), m_Value())));
1780
1781 // Match with capturing.
1782 Value *Arg1 = nullptr;
1783 Value *Arg2 = nullptr;
1784 Value *Arg3 = nullptr;
1785 Value *Arg4 = nullptr;
1786 Value *Arg5 = nullptr;
1787 EXPECT_TRUE(
1788 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>(
1789 m_Value(Arg1), m_Value(Arg2), m_Value(Arg3),
1790 m_Value(Arg4), m_Value(Arg5))));
1791 EXPECT_EQ(Arg1, Name);
1792 EXPECT_EQ(Arg2, Hash);
1793 EXPECT_EQ(Arg3, Num);
1794 EXPECT_EQ(Arg4, Index);
1795 EXPECT_EQ(Arg5, Step);
1796
1797 // Match specific second argument.
1798 EXPECT_TRUE(
1799 match(Intrinsic5,
1800 m_Intrinsic<Intrinsic::instrprof_increment_step>(
1801 m_Value(), m_SpecificInt(0), m_Value(), m_Value(), m_Value())));
1802 EXPECT_FALSE(
1803 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>(
1804 m_Value(), m_SpecificInt(10), m_Value(), m_Value(),
1805 m_Value())));
1806
1807 // Match specific third argument.
1808 EXPECT_TRUE(
1809 match(Intrinsic5,
1810 m_Intrinsic<Intrinsic::instrprof_increment_step>(
1811 m_Value(), m_Value(), m_SpecificInt(1), m_Value(), m_Value())));
1812 EXPECT_FALSE(
1813 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>(
1814 m_Value(), m_Value(), m_SpecificInt(10), m_Value(),
1815 m_Value())));
1816
1817 // Match specific fourth argument.
1818 EXPECT_TRUE(
1819 match(Intrinsic5,
1820 m_Intrinsic<Intrinsic::instrprof_increment_step>(
1821 m_Value(), m_Value(), m_Value(), m_SpecificInt(2), m_Value())));
1822 EXPECT_FALSE(
1823 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>(
1824 m_Value(), m_Value(), m_Value(), m_SpecificInt(10),
1825 m_Value())));
1826
1827 // Match specific fifth argument.
1828 EXPECT_TRUE(
1829 match(Intrinsic5,
1830 m_Intrinsic<Intrinsic::instrprof_increment_step>(
1831 m_Value(), m_Value(), m_Value(), m_Value(), m_SpecificInt(3))));
1832 EXPECT_FALSE(
1833 match(Intrinsic5, m_Intrinsic<Intrinsic::instrprof_increment_step>(
1834 m_Value(), m_Value(), m_Value(), m_Value(),
1835 m_SpecificInt(10))));
1836 }
1837
1838 namespace {
1839
1840 struct is_unsigned_zero_pred {
1841 bool isValue(const APInt &C) { return C.isZero(); }
1842 };
1843
1844 struct is_float_zero_pred {
1845 bool isValue(const APFloat &C) { return C.isZero(); }
1846 };
1847
1848 template <typename T> struct always_true_pred {
1849 bool isValue(const T &) { return true; }
1850 };
1851
1852 template <typename T> struct always_false_pred {
1853 bool isValue(const T &) { return false; }
1854 };
1855
1856 struct is_unsigned_max_pred {
1857 bool isValue(const APInt &C) { return C.isMaxValue(); }
1858 };
1859
1860 struct is_float_nan_pred {
1861 bool isValue(const APFloat &C) { return C.isNaN(); }
1862 };
1863
1864 } // namespace
1865
1866 TEST_F(PatternMatchTest, ConstantPredicateType) {
1867
1868 // Scalar integer
1869 APInt U32Max = APInt::getAllOnes(32);
1870 APInt U32Zero = APInt::getZero(32);
1871 APInt U32DeadBeef(32, 0xDEADBEEF);
1872
1873 Type *U32Ty = Type::getInt32Ty(Ctx);
1874
1875 Constant *CU32Max = Constant::getIntegerValue(U32Ty, U32Max);
1876 Constant *CU32Zero = Constant::getIntegerValue(U32Ty, U32Zero);
1877 Constant *CU32DeadBeef = Constant::getIntegerValue(U32Ty, U32DeadBeef);
1878
1879 EXPECT_TRUE(match(CU32Max, cst_pred_ty<is_unsigned_max_pred>()));
1880 EXPECT_FALSE(match(CU32Max, cst_pred_ty<is_unsigned_zero_pred>()));
1881 EXPECT_TRUE(match(CU32Max, cst_pred_ty<always_true_pred<APInt>>()));
1882 EXPECT_FALSE(match(CU32Max, cst_pred_ty<always_false_pred<APInt>>()));
1883
1884 EXPECT_FALSE(match(CU32Zero, cst_pred_ty<is_unsigned_max_pred>()));
1885 EXPECT_TRUE(match(CU32Zero, cst_pred_ty<is_unsigned_zero_pred>()));
1886 EXPECT_TRUE(match(CU32Zero, cst_pred_ty<always_true_pred<APInt>>()));
1887 EXPECT_FALSE(match(CU32Zero, cst_pred_ty<always_false_pred<APInt>>()));
1888
1889 EXPECT_FALSE(match(CU32DeadBeef, cst_pred_ty<is_unsigned_max_pred>()));
1890 EXPECT_FALSE(match(CU32DeadBeef, cst_pred_ty<is_unsigned_zero_pred>()));
1891 EXPECT_TRUE(match(CU32DeadBeef, cst_pred_ty<always_true_pred<APInt>>()));
1892 EXPECT_FALSE(match(CU32DeadBeef, cst_pred_ty<always_false_pred<APInt>>()));
1893
1894 // Scalar float
1895 APFloat F32NaN = APFloat::getNaN(APFloat::IEEEsingle());
1896 APFloat F32Zero = APFloat::getZero(APFloat::IEEEsingle());
1897 APFloat F32Pi(3.14f);
1898
1899 Type *F32Ty = Type::getFloatTy(Ctx);
1900
1901 Constant *CF32NaN = ConstantFP::get(F32Ty, F32NaN);
1902 Constant *CF32Zero = ConstantFP::get(F32Ty, F32Zero);
1903 Constant *CF32Pi = ConstantFP::get(F32Ty, F32Pi);
1904
1905 EXPECT_TRUE(match(CF32NaN, cstfp_pred_ty<is_float_nan_pred>()));
1906 EXPECT_FALSE(match(CF32NaN, cstfp_pred_ty<is_float_zero_pred>()));
1907 EXPECT_TRUE(match(CF32NaN, cstfp_pred_ty<always_true_pred<APFloat>>()));
1908 EXPECT_FALSE(match(CF32NaN, cstfp_pred_ty<always_false_pred<APFloat>>()));
1909
1910 EXPECT_FALSE(match(CF32Zero, cstfp_pred_ty<is_float_nan_pred>()));
1911 EXPECT_TRUE(match(CF32Zero, cstfp_pred_ty<is_float_zero_pred>()));
1912 EXPECT_TRUE(match(CF32Zero, cstfp_pred_ty<always_true_pred<APFloat>>()));
1913 EXPECT_FALSE(match(CF32Zero, cstfp_pred_ty<always_false_pred<APFloat>>()));
1914
1915 EXPECT_FALSE(match(CF32Pi, cstfp_pred_ty<is_float_nan_pred>()));
1916 EXPECT_FALSE(match(CF32Pi, cstfp_pred_ty<is_float_zero_pred>()));
1917 EXPECT_TRUE(match(CF32Pi, cstfp_pred_ty<always_true_pred<APFloat>>()));
1918 EXPECT_FALSE(match(CF32Pi, cstfp_pred_ty<always_false_pred<APFloat>>()));
1919
1920 auto FixedEC = ElementCount::getFixed(4);
1921 auto ScalableEC = ElementCount::getScalable(4);
1922
1923 // Vector splat
1924
1925 for (auto EC : {FixedEC, ScalableEC}) {
1926 // integer
1927
1928 Constant *CSplatU32Max = ConstantVector::getSplat(EC, CU32Max);
1929 Constant *CSplatU32Zero = ConstantVector::getSplat(EC, CU32Zero);
1930 Constant *CSplatU32DeadBeef = ConstantVector::getSplat(EC, CU32DeadBeef);
1931
1932 EXPECT_TRUE(match(CSplatU32Max, cst_pred_ty<is_unsigned_max_pred>()));
1933 EXPECT_FALSE(match(CSplatU32Max, cst_pred_ty<is_unsigned_zero_pred>()));
1934 EXPECT_TRUE(match(CSplatU32Max, cst_pred_ty<always_true_pred<APInt>>()));
1935 EXPECT_FALSE(match(CSplatU32Max, cst_pred_ty<always_false_pred<APInt>>()));
1936
1937 EXPECT_FALSE(match(CSplatU32Zero, cst_pred_ty<is_unsigned_max_pred>()));
1938 EXPECT_TRUE(match(CSplatU32Zero, cst_pred_ty<is_unsigned_zero_pred>()));
1939 EXPECT_TRUE(match(CSplatU32Zero, cst_pred_ty<always_true_pred<APInt>>()));
1940 EXPECT_FALSE(match(CSplatU32Zero, cst_pred_ty<always_false_pred<APInt>>()));
1941
1942 EXPECT_FALSE(match(CSplatU32DeadBeef, cst_pred_ty<is_unsigned_max_pred>()));
1943 EXPECT_FALSE(
1944 match(CSplatU32DeadBeef, cst_pred_ty<is_unsigned_zero_pred>()));
1945 EXPECT_TRUE(
1946 match(CSplatU32DeadBeef, cst_pred_ty<always_true_pred<APInt>>()));
1947 EXPECT_FALSE(
1948 match(CSplatU32DeadBeef, cst_pred_ty<always_false_pred<APInt>>()));
1949
1950 // float
1951
1952 Constant *CSplatF32NaN = ConstantVector::getSplat(EC, CF32NaN);
1953 Constant *CSplatF32Zero = ConstantVector::getSplat(EC, CF32Zero);
1954 Constant *CSplatF32Pi = ConstantVector::getSplat(EC, CF32Pi);
1955
1956 EXPECT_TRUE(match(CSplatF32NaN, cstfp_pred_ty<is_float_nan_pred>()));
1957 EXPECT_FALSE(match(CSplatF32NaN, cstfp_pred_ty<is_float_zero_pred>()));
1958 EXPECT_TRUE(
1959 match(CSplatF32NaN, cstfp_pred_ty<always_true_pred<APFloat>>()));
1960 EXPECT_FALSE(
1961 match(CSplatF32NaN, cstfp_pred_ty<always_false_pred<APFloat>>()));
1962
1963 EXPECT_FALSE(match(CSplatF32Zero, cstfp_pred_ty<is_float_nan_pred>()));
1964 EXPECT_TRUE(match(CSplatF32Zero, cstfp_pred_ty<is_float_zero_pred>()));
1965 EXPECT_TRUE(
1966 match(CSplatF32Zero, cstfp_pred_ty<always_true_pred<APFloat>>()));
1967 EXPECT_FALSE(
1968 match(CSplatF32Zero, cstfp_pred_ty<always_false_pred<APFloat>>()));
1969
1970 EXPECT_FALSE(match(CSplatF32Pi, cstfp_pred_ty<is_float_nan_pred>()));
1971 EXPECT_FALSE(match(CSplatF32Pi, cstfp_pred_ty<is_float_zero_pred>()));
1972 EXPECT_TRUE(match(CSplatF32Pi, cstfp_pred_ty<always_true_pred<APFloat>>()));
1973 EXPECT_FALSE(
1974 match(CSplatF32Pi, cstfp_pred_ty<always_false_pred<APFloat>>()));
1975 }
1976
1977 // Int arbitrary vector
1978
1979 Constant *CMixedU32 = ConstantVector::get({CU32Max, CU32Zero, CU32DeadBeef});
1980 Constant *CU32Undef = UndefValue::get(U32Ty);
1981 Constant *CU32Poison = PoisonValue::get(U32Ty);
1982 Constant *CU32MaxWithUndef =
1983 ConstantVector::get({CU32Undef, CU32Max, CU32Undef});
1984 Constant *CU32MaxWithPoison =
1985 ConstantVector::get({CU32Poison, CU32Max, CU32Poison});
1986
1987 EXPECT_FALSE(match(CMixedU32, cst_pred_ty<is_unsigned_max_pred>()));
1988 EXPECT_FALSE(match(CMixedU32, cst_pred_ty<is_unsigned_zero_pred>()));
1989 EXPECT_TRUE(match(CMixedU32, cst_pred_ty<always_true_pred<APInt>>()));
1990 EXPECT_FALSE(match(CMixedU32, cst_pred_ty<always_false_pred<APInt>>()));
1991
1992 EXPECT_FALSE(match(CU32MaxWithUndef, cst_pred_ty<is_unsigned_max_pred>()));
1993 EXPECT_FALSE(match(CU32MaxWithUndef, cst_pred_ty<is_unsigned_zero_pred>()));
1994 EXPECT_FALSE(match(CU32MaxWithUndef, cst_pred_ty<always_true_pred<APInt>>()));
1995 EXPECT_FALSE(
1996 match(CU32MaxWithUndef, cst_pred_ty<always_false_pred<APInt>>()));
1997
1998 EXPECT_TRUE(match(CU32MaxWithPoison, cst_pred_ty<is_unsigned_max_pred>()));
1999 EXPECT_FALSE(match(CU32MaxWithPoison, cst_pred_ty<is_unsigned_zero_pred>()));
2000 EXPECT_TRUE(match(CU32MaxWithPoison, cst_pred_ty<always_true_pred<APInt>>()));
2001 EXPECT_FALSE(
2002 match(CU32MaxWithPoison, cst_pred_ty<always_false_pred<APInt>>()));
2003
2004 // Float arbitrary vector
2005
2006 Constant *CMixedF32 = ConstantVector::get({CF32NaN, CF32Zero, CF32Pi});
2007 Constant *CF32Undef = UndefValue::get(F32Ty);
2008 Constant *CF32Poison = PoisonValue::get(F32Ty);
2009 Constant *CF32NaNWithUndef =
2010 ConstantVector::get({CF32Undef, CF32NaN, CF32Undef});
2011 Constant *CF32NaNWithPoison =
2012 ConstantVector::get({CF32Poison, CF32NaN, CF32Poison});
2013
2014 EXPECT_FALSE(match(CMixedF32, cstfp_pred_ty<is_float_nan_pred>()));
2015 EXPECT_FALSE(match(CMixedF32, cstfp_pred_ty<is_float_zero_pred>()));
2016 EXPECT_TRUE(match(CMixedF32, cstfp_pred_ty<always_true_pred<APFloat>>()));
2017 EXPECT_FALSE(match(CMixedF32, cstfp_pred_ty<always_false_pred<APFloat>>()));
2018
2019 EXPECT_FALSE(match(CF32NaNWithUndef, cstfp_pred_ty<is_float_nan_pred>()));
2020 EXPECT_FALSE(match(CF32NaNWithUndef, cstfp_pred_ty<is_float_zero_pred>()));
2021 EXPECT_FALSE(
2022 match(CF32NaNWithUndef, cstfp_pred_ty<always_true_pred<APFloat>>()));
2023 EXPECT_FALSE(
2024 match(CF32NaNWithUndef, cstfp_pred_ty<always_false_pred<APFloat>>()));
2025
2026 EXPECT_TRUE(match(CF32NaNWithPoison, cstfp_pred_ty<is_float_nan_pred>()));
2027 EXPECT_FALSE(match(CF32NaNWithPoison, cstfp_pred_ty<is_float_zero_pred>()));
2028 EXPECT_TRUE(
2029 match(CF32NaNWithPoison, cstfp_pred_ty<always_true_pred<APFloat>>()));
2030 EXPECT_FALSE(
2031 match(CF32NaNWithPoison, cstfp_pred_ty<always_false_pred<APFloat>>()));
2032 }
2033
2034 TEST_F(PatternMatchTest, InsertValue) {
2035 Type *StructTy = StructType::create(IRB.getContext(),
2036 {IRB.getInt32Ty(), IRB.getInt64Ty()});
2037 Value *Ins0 =
2038 IRB.CreateInsertValue(UndefValue::get(StructTy), IRB.getInt32(20), 0);
2039 Value *Ins1 = IRB.CreateInsertValue(Ins0, IRB.getInt64(90), 1);
2040
2041 EXPECT_TRUE(match(Ins0, m_InsertValue<0>(m_Value(), m_Value())));
2042 EXPECT_FALSE(match(Ins0, m_InsertValue<1>(m_Value(), m_Value())));
2043 EXPECT_FALSE(match(Ins1, m_InsertValue<0>(m_Value(), m_Value())));
2044 EXPECT_TRUE(match(Ins1, m_InsertValue<1>(m_Value(), m_Value())));
2045
2046 EXPECT_TRUE(match(Ins0, m_InsertValue<0>(m_Undef(), m_SpecificInt(20))));
2047 EXPECT_FALSE(match(Ins0, m_InsertValue<0>(m_Undef(), m_SpecificInt(0))));
2048
2049 EXPECT_TRUE(
2050 match(Ins1, m_InsertValue<1>(m_InsertValue<0>(m_Value(), m_Value()),
2051 m_SpecificInt(90))));
2052 EXPECT_FALSE(match(IRB.getInt64(99), m_InsertValue<0>(m_Value(), m_Value())));
2053 }
2054
2055 TEST_F(PatternMatchTest, LogicalSelects) {
2056 Value *Alloca = IRB.CreateAlloca(IRB.getInt1Ty());
2057 Value *X = IRB.CreateLoad(IRB.getInt1Ty(), Alloca);
2058 Value *Y = IRB.CreateLoad(IRB.getInt1Ty(), Alloca);
2059 Constant *T = IRB.getInt1(true);
2060 Constant *F = IRB.getInt1(false);
2061 Value *And = IRB.CreateSelect(X, Y, F);
2062 Value *Or = IRB.CreateSelect(X, T, Y);
2063
2064 // Logical and:
2065 // Check basic no-capture logic - opcode and constant must match.
2066 EXPECT_TRUE(match(And, m_LogicalAnd(m_Value(), m_Value())));
2067 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Value(), m_Value())));
2068 EXPECT_FALSE(match(And, m_LogicalOr(m_Value(), m_Value())));
2069 EXPECT_FALSE(match(And, m_c_LogicalOr(m_Value(), m_Value())));
2070
2071 // Check with captures.
2072 EXPECT_TRUE(match(And, m_LogicalAnd(m_Specific(X), m_Value())));
2073 EXPECT_TRUE(match(And, m_LogicalAnd(m_Value(), m_Specific(Y))));
2074 EXPECT_TRUE(match(And, m_LogicalAnd(m_Specific(X), m_Specific(Y))));
2075
2076 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(Y), m_Value())));
2077 EXPECT_FALSE(match(And, m_LogicalAnd(m_Value(), m_Specific(X))));
2078 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(Y), m_Specific(X))));
2079
2080 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(X), m_Specific(X))));
2081 EXPECT_FALSE(match(And, m_LogicalAnd(m_Specific(Y), m_Specific(Y))));
2082
2083 // Check captures for commutative match.
2084 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(X), m_Value())));
2085 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Value(), m_Specific(Y))));
2086 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(X), m_Specific(Y))));
2087
2088 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(Y), m_Value())));
2089 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Value(), m_Specific(X))));
2090 EXPECT_TRUE(match(And, m_c_LogicalAnd(m_Specific(Y), m_Specific(X))));
2091
2092 EXPECT_FALSE(match(And, m_c_LogicalAnd(m_Specific(X), m_Specific(X))));
2093 EXPECT_FALSE(match(And, m_c_LogicalAnd(m_Specific(Y), m_Specific(Y))));
2094
2095 // Logical or:
2096 // Check basic no-capture logic - opcode and constant must match.
2097 EXPECT_TRUE(match(Or, m_LogicalOr(m_Value(), m_Value())));
2098 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Value(), m_Value())));
2099 EXPECT_FALSE(match(Or, m_LogicalAnd(m_Value(), m_Value())));
2100 EXPECT_FALSE(match(Or, m_c_LogicalAnd(m_Value(), m_Value())));
2101
2102 // Check with captures.
2103 EXPECT_TRUE(match(Or, m_LogicalOr(m_Specific(X), m_Value())));
2104 EXPECT_TRUE(match(Or, m_LogicalOr(m_Value(), m_Specific(Y))));
2105 EXPECT_TRUE(match(Or, m_LogicalOr(m_Specific(X), m_Specific(Y))));
2106
2107 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(Y), m_Value())));
2108 EXPECT_FALSE(match(Or, m_LogicalOr(m_Value(), m_Specific(X))));
2109 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(Y), m_Specific(X))));
2110
2111 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(X), m_Specific(X))));
2112 EXPECT_FALSE(match(Or, m_LogicalOr(m_Specific(Y), m_Specific(Y))));
2113
2114 // Check captures for commutative match.
2115 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(X), m_Value())));
2116 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Value(), m_Specific(Y))));
2117 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(X), m_Specific(Y))));
2118
2119 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(Y), m_Value())));
2120 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Value(), m_Specific(X))));
2121 EXPECT_TRUE(match(Or, m_c_LogicalOr(m_Specific(Y), m_Specific(X))));
2122
2123 EXPECT_FALSE(match(Or, m_c_LogicalOr(m_Specific(X), m_Specific(X))));
2124 EXPECT_FALSE(match(Or, m_c_LogicalOr(m_Specific(Y), m_Specific(Y))));
2125 }
2126
2127 TEST_F(PatternMatchTest, VectorLogicalSelects) {
2128 Type *i1 = IRB.getInt1Ty();
2129 Type *v3i1 = FixedVectorType::get(i1, 3);
2130
2131 Value *Alloca = IRB.CreateAlloca(i1);
2132 Value *AllocaVec = IRB.CreateAlloca(v3i1);
2133 Value *Scalar = IRB.CreateLoad(i1, Alloca);
2134 Value *Vector = IRB.CreateLoad(v3i1, AllocaVec);
2135 Constant *F = Constant::getNullValue(v3i1);
2136 Constant *T = Constant::getAllOnesValue(v3i1);
2137
2138 // select <3 x i1> Vector, <3 x i1> Vector, <3 x i1> <i1 0, i1 0, i1 0>
2139 Value *VecAnd = IRB.CreateSelect(Vector, Vector, F);
2140
2141 // select i1 Scalar, <3 x i1> Vector, <3 x i1> <i1 0, i1 0, i1 0>
2142 Value *MixedTypeAnd = IRB.CreateSelect(Scalar, Vector, F);
2143
2144 // select <3 x i1> Vector, <3 x i1> <i1 1, i1 1, i1 1>, <3 x i1> Vector
2145 Value *VecOr = IRB.CreateSelect(Vector, T, Vector);
2146
2147 // select i1 Scalar, <3 x i1> <i1 1, i1 1, i1 1>, <3 x i1> Vector
2148 Value *MixedTypeOr = IRB.CreateSelect(Scalar, T, Vector);
2149
2150 // We allow matching a real vector logical select,
2151 // but not a scalar select of vector bools.
2152 EXPECT_TRUE(match(VecAnd, m_LogicalAnd(m_Value(), m_Value())));
2153 EXPECT_FALSE(match(MixedTypeAnd, m_LogicalAnd(m_Value(), m_Value())));
2154 EXPECT_TRUE(match(VecOr, m_LogicalOr(m_Value(), m_Value())));
2155 EXPECT_FALSE(match(MixedTypeOr, m_LogicalOr(m_Value(), m_Value())));
2156 }
2157
2158 TEST_F(PatternMatchTest, VScale) {
2159 DataLayout DL = M->getDataLayout();
2160
2161 Type *VecTy = ScalableVectorType::get(IRB.getInt8Ty(), 1);
2162 Value *NullPtrVec =
2163 Constant::getNullValue(PointerType::getUnqual(VecTy->getContext()));
2164 Value *GEP = IRB.CreateGEP(VecTy, NullPtrVec, IRB.getInt64(1));
2165 Value *PtrToInt = IRB.CreatePtrToInt(GEP, DL.getIntPtrType(GEP->getType()));
2166 EXPECT_TRUE(match(PtrToInt, m_VScale()));
2167
2168 Type *VecTy2 = ScalableVectorType::get(IRB.getInt8Ty(), 2);
2169 Value *NullPtrVec2 =
2170 Constant::getNullValue(PointerType::getUnqual(VecTy2->getContext()));
2171 Value *GEP2 = IRB.CreateGEP(VecTy, NullPtrVec2, IRB.getInt64(1));
2172 Value *PtrToInt2 =
2173 IRB.CreatePtrToInt(GEP2, DL.getIntPtrType(GEP2->getType()));
2174 EXPECT_TRUE(match(PtrToInt2, m_VScale()));
2175 }
2176
2177 TEST_F(PatternMatchTest, NotForbidPoison) {
2178 Type *ScalarTy = IRB.getInt8Ty();
2179 Type *VectorTy = FixedVectorType::get(ScalarTy, 3);
2180 Constant *ScalarUndef = UndefValue::get(ScalarTy);
2181 Constant *ScalarPoison = PoisonValue::get(ScalarTy);
2182 Constant *ScalarOnes = Constant::getAllOnesValue(ScalarTy);
2183 Constant *VectorZero = Constant::getNullValue(VectorTy);
2184 Constant *VectorOnes = Constant::getAllOnesValue(VectorTy);
2185
2186 SmallVector<Constant *, 3> MixedElemsUndef;
2187 MixedElemsUndef.push_back(ScalarOnes);
2188 MixedElemsUndef.push_back(ScalarOnes);
2189 MixedElemsUndef.push_back(ScalarUndef);
2190 Constant *VectorMixedUndef = ConstantVector::get(MixedElemsUndef);
2191
2192 SmallVector<Constant *, 3> MixedElemsPoison;
2193 MixedElemsPoison.push_back(ScalarOnes);
2194 MixedElemsPoison.push_back(ScalarOnes);
2195 MixedElemsPoison.push_back(ScalarPoison);
2196 Constant *VectorMixedPoison = ConstantVector::get(MixedElemsPoison);
2197
2198 Value *Not = IRB.CreateXor(VectorZero, VectorOnes);
2199 Value *X;
2200 EXPECT_TRUE(match(Not, m_Not(m_Value(X))));
2201 EXPECT_TRUE(match(X, m_Zero()));
2202 X = nullptr;
2203 EXPECT_TRUE(match(Not, m_NotForbidPoison(m_Value(X))));
2204 EXPECT_TRUE(match(X, m_Zero()));
2205
2206 Value *NotCommute = IRB.CreateXor(VectorOnes, VectorZero);
2207 Value *Y;
2208 EXPECT_TRUE(match(NotCommute, m_Not(m_Value(Y))));
2209 EXPECT_TRUE(match(Y, m_Zero()));
2210 Y = nullptr;
2211 EXPECT_TRUE(match(NotCommute, m_NotForbidPoison(m_Value(Y))));
2212 EXPECT_TRUE(match(Y, m_Zero()));
2213
2214 Value *NotWithUndefs = IRB.CreateXor(VectorZero, VectorMixedUndef);
2215 EXPECT_FALSE(match(NotWithUndefs, m_Not(m_Value())));
2216 EXPECT_FALSE(match(NotWithUndefs, m_NotForbidPoison(m_Value())));
2217
2218 Value *NotWithPoisons = IRB.CreateXor(VectorZero, VectorMixedPoison);
2219 EXPECT_TRUE(match(NotWithPoisons, m_Not(m_Value())));
2220 EXPECT_FALSE(match(NotWithPoisons, m_NotForbidPoison(m_Value())));
2221
2222 Value *NotWithUndefsCommute = IRB.CreateXor(VectorMixedUndef, VectorZero);
2223 EXPECT_FALSE(match(NotWithUndefsCommute, m_Not(m_Value())));
2224 EXPECT_FALSE(match(NotWithUndefsCommute, m_NotForbidPoison(m_Value())));
2225
2226 Value *NotWithPoisonsCommute = IRB.CreateXor(VectorMixedPoison, VectorZero);
2227 EXPECT_TRUE(match(NotWithPoisonsCommute, m_Not(m_Value())));
2228 EXPECT_FALSE(match(NotWithPoisonsCommute, m_NotForbidPoison(m_Value())));
2229 }
2230
2231 template <typename T> struct MutableConstTest : PatternMatchTest { };
2232
2233 typedef ::testing::Types<std::tuple<Value*, Instruction*>,
2234 std::tuple<const Value*, const Instruction *>>
2235 MutableConstTestTypes;
2236 TYPED_TEST_SUITE(MutableConstTest, MutableConstTestTypes, );
2237
2238 TYPED_TEST(MutableConstTest, ICmp) {
2239 auto &IRB = PatternMatchTest::IRB;
2240
2241 typedef std::tuple_element_t<0, TypeParam> ValueType;
2242 typedef std::tuple_element_t<1, TypeParam> InstructionType;
2243
2244 Value *L = IRB.getInt32(1);
2245 Value *R = IRB.getInt32(2);
2246 ICmpInst::Predicate Pred = ICmpInst::ICMP_UGT;
2247
2248 ValueType MatchL;
2249 ValueType MatchR;
2250 ICmpInst::Predicate MatchPred;
2251
2252 EXPECT_TRUE(m_ICmp(MatchPred, m_Value(MatchL), m_Value(MatchR))
2253 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2254 EXPECT_EQ(L, MatchL);
2255 EXPECT_EQ(R, MatchR);
2256
2257 EXPECT_TRUE(m_Cmp(MatchPred, m_Value(MatchL), m_Value(MatchR))
2258 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2259 EXPECT_EQ(L, MatchL);
2260 EXPECT_EQ(R, MatchR);
2261
2262 EXPECT_TRUE(m_ICmp(m_Specific(L), m_Specific(R))
2263 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2264
2265 EXPECT_TRUE(m_Cmp(m_Specific(L), m_Specific(R))
2266 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2267
2268 EXPECT_FALSE(m_ICmp(m_Specific(R), m_Specific(L))
2269 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2270 EXPECT_FALSE(m_Cmp(m_Specific(R), m_Specific(L))
2271 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2272
2273 EXPECT_TRUE(m_c_ICmp(m_Specific(R), m_Specific(L))
2274 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2275
2276 EXPECT_FALSE(m_c_ICmp(m_Specific(R), m_Specific(R))
2277 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2278
2279 EXPECT_TRUE(m_SpecificICmp(Pred, m_Specific(L), m_Specific(R))
2280 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2281 EXPECT_TRUE(m_SpecificCmp(Pred, m_Specific(L), m_Specific(R))
2282 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2283
2284 EXPECT_FALSE(m_SpecificICmp(Pred, m_Specific(R), m_Specific(L))
2285 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2286 EXPECT_FALSE(m_SpecificCmp(Pred, m_Specific(R), m_Specific(L))
2287 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2288
2289 MatchL = nullptr;
2290 MatchR = nullptr;
2291 EXPECT_TRUE(m_SpecificICmp(Pred, m_Value(MatchL), m_Value(MatchR))
2292 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2293 EXPECT_EQ(L, MatchL);
2294 EXPECT_EQ(R, MatchR);
2295 MatchL = nullptr;
2296 MatchR = nullptr;
2297 EXPECT_TRUE(m_SpecificCmp(Pred, m_Value(MatchL), m_Value(MatchR))
2298 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2299 EXPECT_EQ(L, MatchL);
2300 EXPECT_EQ(R, MatchR);
2301
2302 EXPECT_FALSE(m_SpecificICmp(Pred, m_Specific(R), m_Specific(L))
2303 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2304 EXPECT_FALSE(m_SpecificCmp(Pred, m_Specific(R), m_Specific(L))
2305 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2306
2307 EXPECT_FALSE(m_SpecificICmp(ICmpInst::getInversePredicate(Pred),
2308 m_Specific(L), m_Specific(R))
2309 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2310 EXPECT_FALSE(m_SpecificCmp(ICmpInst::getInversePredicate(Pred), m_Specific(L),
2311 m_Specific(R))
2312 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2313
2314 EXPECT_FALSE(m_SpecificICmp(ICmpInst::getInversePredicate(Pred),
2315 m_Value(MatchL), m_Value(MatchR))
2316 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2317 EXPECT_FALSE(m_SpecificCmp(ICmpInst::getInversePredicate(Pred),
2318 m_Value(MatchL), m_Value(MatchR))
2319 .match((InstructionType)IRB.CreateICmp(Pred, L, R)));
2320 }
2321
2322 TYPED_TEST(MutableConstTest, FCmp) {
2323 auto &IRB = PatternMatchTest::IRB;
2324
2325 typedef std::tuple_element_t<0, TypeParam> ValueType;
2326 typedef std::tuple_element_t<1, TypeParam> InstructionType;
2327
2328 Value *L = Constant::getNullValue(IRB.getFloatTy());
2329 Value *R = ConstantFP::getInfinity(IRB.getFloatTy(), true);
2330 FCmpInst::Predicate Pred = FCmpInst::FCMP_OGT;
2331
2332 ValueType MatchL;
2333 ValueType MatchR;
2334 FCmpInst::Predicate MatchPred;
2335
2336 EXPECT_TRUE(m_FCmp(MatchPred, m_Value(MatchL), m_Value(MatchR))
2337 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2338 EXPECT_EQ(L, MatchL);
2339 EXPECT_EQ(R, MatchR);
2340
2341 EXPECT_TRUE(m_Cmp(MatchPred, m_Value(MatchL), m_Value(MatchR))
2342 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2343 EXPECT_EQ(L, MatchL);
2344 EXPECT_EQ(R, MatchR);
2345
2346 EXPECT_TRUE(m_FCmp(m_Specific(L), m_Specific(R))
2347 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2348
2349 EXPECT_TRUE(m_Cmp(m_Specific(L), m_Specific(R))
2350 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2351
2352 EXPECT_FALSE(m_FCmp(m_Specific(R), m_Specific(L))
2353 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2354 EXPECT_FALSE(m_Cmp(m_Specific(R), m_Specific(L))
2355 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2356
2357 EXPECT_TRUE(m_SpecificFCmp(Pred, m_Specific(L), m_Specific(R))
2358 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2359 EXPECT_TRUE(m_SpecificCmp(Pred, m_Specific(L), m_Specific(R))
2360 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2361
2362 EXPECT_FALSE(m_SpecificFCmp(Pred, m_Specific(R), m_Specific(L))
2363 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2364 EXPECT_FALSE(m_SpecificCmp(Pred, m_Specific(R), m_Specific(L))
2365 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2366
2367 MatchL = nullptr;
2368 MatchR = nullptr;
2369 EXPECT_TRUE(m_SpecificFCmp(Pred, m_Value(MatchL), m_Value(MatchR))
2370 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2371 EXPECT_EQ(L, MatchL);
2372 EXPECT_EQ(R, MatchR);
2373 MatchL = nullptr;
2374 MatchR = nullptr;
2375 EXPECT_TRUE(m_SpecificCmp(Pred, m_Value(MatchL), m_Value(MatchR))
2376 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2377 EXPECT_EQ(L, MatchL);
2378 EXPECT_EQ(R, MatchR);
2379
2380 EXPECT_FALSE(m_SpecificFCmp(Pred, m_Specific(R), m_Specific(L))
2381 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2382 EXPECT_FALSE(m_SpecificCmp(Pred, m_Specific(R), m_Specific(L))
2383 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2384
2385 EXPECT_FALSE(m_SpecificFCmp(FCmpInst::getInversePredicate(Pred),
2386 m_Specific(L), m_Specific(R))
2387 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2388 EXPECT_FALSE(m_SpecificCmp(FCmpInst::getInversePredicate(Pred), m_Specific(L),
2389 m_Specific(R))
2390 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2391
2392 EXPECT_FALSE(m_SpecificFCmp(FCmpInst::getInversePredicate(Pred),
2393 m_Value(MatchL), m_Value(MatchR))
2394 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2395 EXPECT_FALSE(m_SpecificCmp(FCmpInst::getInversePredicate(Pred),
2396 m_Value(MatchL), m_Value(MatchR))
2397 .match((InstructionType)IRB.CreateFCmp(Pred, L, R)));
2398 }
2399
2400 TEST_F(PatternMatchTest, ConstExpr) {
2401 Constant *G =
2402 M->getOrInsertGlobal("dummy", PointerType::getUnqual(IRB.getInt32Ty()));
2403 Constant *S = ConstantExpr::getPtrToInt(G, IRB.getInt32Ty());
2404 Type *VecTy = FixedVectorType::get(IRB.getInt32Ty(), 2);
2405 PoisonValue *P = PoisonValue::get(VecTy);
2406 Constant *V = ConstantExpr::getInsertElement(P, S, IRB.getInt32(0));
2407
2408 // The match succeeds on a constant that is a constant expression itself
2409 // or a constant that contains a constant expression.
2410 EXPECT_TRUE(match(S, m_ConstantExpr()));
2411 EXPECT_TRUE(match(V, m_ConstantExpr()));
2412 }
2413
2414 TEST_F(PatternMatchTest, PtrAdd) {
2415 Type *PtrTy = PointerType::getUnqual(Ctx);
2416 Type *IdxTy = Type::getInt64Ty(Ctx);
2417 Constant *Null = Constant::getNullValue(PtrTy);
2418 Constant *Offset = ConstantInt::get(IdxTy, 42);
2419 Value *PtrAdd = IRB.CreatePtrAdd(Null, Offset);
2420 Value *OtherGEP = IRB.CreateGEP(IdxTy, Null, Offset);
2421 Value *PtrAddConst =
2422 ConstantExpr::getGetElementPtr(Type::getInt8Ty(Ctx), Null, Offset);
2423
2424 Value *A, *B;
2425 EXPECT_TRUE(match(PtrAdd, m_PtrAdd(m_Value(A), m_Value(B))));
2426 EXPECT_EQ(A, Null);
2427 EXPECT_EQ(B, Offset);
2428
2429 EXPECT_TRUE(match(PtrAddConst, m_PtrAdd(m_Value(A), m_Value(B))));
2430 EXPECT_EQ(A, Null);
2431 EXPECT_EQ(B, Offset);
2432
2433 EXPECT_FALSE(match(OtherGEP, m_PtrAdd(m_Value(A), m_Value(B))));
2434 }
2435
2436 } // anonymous namespace.
LLVM monorepo