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; RUN: opt < %s -dfsan -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"

; Check that we use dfsan_union in large functions instead of __dfsan_union.

; CHECK-LABEL: @"dfs$foo"
define i32 @foo(i32 %a, i32 %b) {
bb0:
  br label %bb1

bb1:
  br label %bb2

bb2:
  br label %bb3

bb3:
  br label %bb4

bb4:
  br label %bb5

bb5:
  br label %bb6

bb6:
  br label %bb7

bb7:
  br label %bb8

bb8:
  br label %bb9

bb9:
  br label %bb10

bb10:
  br label %bb11

bb11:
  br label %bb12

bb12:
  br label %bb13

bb13:
  br label %bb14

bb14:
  br label %bb15

bb15:
  br label %bb16

bb16:
  br label %bb17

bb17:
  br label %bb18

bb18:
  br label %bb19

bb19:
  br label %bb20

bb20:
  br label %bb21

bb21:
  br label %bb22

bb22:
  br label %bb23

bb23:
  br label %bb24

bb24:
  br label %bb25

bb25:
  br label %bb26

bb26:
  br label %bb27

bb27:
  br label %bb28

bb28:
  br label %bb29

bb29:
  br label %bb30

bb30:
  br label %bb31

bb31:
  br label %bb32

bb32:
  br label %bb33

bb33:
  br label %bb34

bb34:
  br label %bb35

bb35:
  br label %bb36

bb36:
  br label %bb37

bb37:
  br label %bb38

bb38:
  br label %bb39

bb39:
  br label %bb40

bb40:
  br label %bb41

bb41:
  br label %bb42

bb42:
  br label %bb43

bb43:
  br label %bb44

bb44:
  br label %bb45

bb45:
  br label %bb46

bb46:
  br label %bb47

bb47:
  br label %bb48

bb48:
  br label %bb49

bb49:
  br label %bb50

bb50:
  br label %bb51

bb51:
  br label %bb52

bb52:
  br label %bb53

bb53:
  br label %bb54

bb54:
  br label %bb55

bb55:
  br label %bb56

bb56:
  br label %bb57

bb57:
  br label %bb58

bb58:
  br label %bb59

bb59:
  br label %bb60

bb60:
  br label %bb61

bb61:
  br label %bb62

bb62:
  br label %bb63

bb63:
  br label %bb64

bb64:
  br label %bb65

bb65:
  br label %bb66

bb66:
  br label %bb67

bb67:
  br label %bb68

bb68:
  br label %bb69

bb69:
  br label %bb70

bb70:
  br label %bb71

bb71:
  br label %bb72

bb72:
  br label %bb73

bb73:
  br label %bb74

bb74:
  br label %bb75

bb75:
  br label %bb76

bb76:
  br label %bb77

bb77:
  br label %bb78

bb78:
  br label %bb79

bb79:
  br label %bb80

bb80:
  br label %bb81

bb81:
  br label %bb82

bb82:
  br label %bb83

bb83:
  br label %bb84

bb84:
  br label %bb85

bb85:
  br label %bb86

bb86:
  br label %bb87

bb87:
  br label %bb88

bb88:
  br label %bb89

bb89:
  br label %bb90

bb90:
  br label %bb91

bb91:
  br label %bb92

bb92:
  br label %bb93

bb93:
  br label %bb94

bb94:
  br label %bb95

bb95:
  br label %bb96

bb96:
  br label %bb97

bb97:
  br label %bb98

bb98:
  br label %bb99

bb99:
  br label %bb100

bb100:
  br label %bb101

bb101:
  br label %bb102

bb102:
  br label %bb103

bb103:
  br label %bb104

bb104:
  br label %bb105

bb105:
  br label %bb106

bb106:
  br label %bb107

bb107:
  br label %bb108

bb108:
  br label %bb109

bb109:
  br label %bb110

bb110:
  br label %bb111

bb111:
  br label %bb112

bb112:
  br label %bb113

bb113:
  br label %bb114

bb114:
  br label %bb115

bb115:
  br label %bb116

bb116:
  br label %bb117

bb117:
  br label %bb118

bb118:
  br label %bb119

bb119:
  br label %bb120

bb120:
  br label %bb121

bb121:
  br label %bb122

bb122:
  br label %bb123

bb123:
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bb124:
  br label %bb125

bb125:
  br label %bb126

bb126:
  br label %bb127

bb127:
  br label %bb128

bb128:
  br label %bb129

bb129:
  br label %bb130

bb130:
  br label %bb131

bb131:
  br label %bb132

bb132:
  br label %bb133

bb133:
  br label %bb134

bb134:
  br label %bb135

bb135:
  br label %bb136

bb136:
  br label %bb137

bb137:
  br label %bb138

bb138:
  br label %bb139

bb139:
  br label %bb140

bb140:
  br label %bb141

bb141:
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bb142:
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bb143:
  br label %bb144

bb144:
  br label %bb145

bb145:
  br label %bb146

bb146:
  br label %bb147

bb147:
  br label %bb148

bb148:
  br label %bb149

bb149:
  br label %bb150

bb150:
  br label %bb151

bb151:
  br label %bb152

bb152:
  br label %bb153

bb153:
  br label %bb154

bb154:
  br label %bb155

bb155:
  br label %bb156

bb156:
  br label %bb157

bb157:
  br label %bb158

bb158:
  br label %bb159

bb159:
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bb160:
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bb161:
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bb162:
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bb163:
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bb164:
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bb165:
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bb166:
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bb167:
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bb168:
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bb169:
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bb170:
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bb171:
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bb172:
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bb173:
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bb174:
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bb175:
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bb176:
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bb177:
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bb178:
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bb179:
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bb180:
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bb181:
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bb182:
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bb183:
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bb184:
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bb185:
  br label %bb186

bb186:
  br label %bb187

bb187:
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bb188:
  br label %bb189

bb189:
  br label %bb190

bb190:
  br label %bb191

bb191:
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bb192:
  br label %bb193

bb193:
  br label %bb194

bb194:
  br label %bb195

bb195:
  br label %bb196

bb196:
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bb197:
  br label %bb198

bb198:
  br label %bb199

bb199:
  br label %bb200

bb200:
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bb201:
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bb202:
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bb203:
  br label %bb204

bb204:
  br label %bb205

bb205:
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bb206:
  br label %bb207

bb207:
  br label %bb208

bb208:
  br label %bb209

bb209:
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bb210:
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bb211:
  br label %bb212

bb212:
  br label %bb213

bb213:
  br label %bb214

bb214:
  br label %bb215

bb215:
  br label %bb216

bb216:
  br label %bb217

bb217:
  br label %bb218

bb218:
  br label %bb219

bb219:
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bb220:
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bb221:
  br label %bb222

bb222:
  br label %bb223

bb223:
  br label %bb224

bb224:
  br label %bb225

bb225:
  br label %bb226

bb226:
  br label %bb227

bb227:
  br label %bb228

bb228:
  br label %bb229

bb229:
  br label %bb230

bb230:
  br label %bb231

bb231:
  br label %bb232

bb232:
  br label %bb233

bb233:
  br label %bb234

bb234:
  br label %bb235

bb235:
  br label %bb236

bb236:
  br label %bb237

bb237:
  br label %bb238

bb238:
  br label %bb239

bb239:
  br label %bb240

bb240:
  br label %bb241

bb241:
  br label %bb242

bb242:
  br label %bb243

bb243:
  br label %bb244

bb244:
  br label %bb245

bb245:
  br label %bb246

bb246:
  br label %bb247

bb247:
  br label %bb248

bb248:
  br label %bb249

bb249:
  br label %bb250

bb250:
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bb251:
  br label %bb252

bb252:
  br label %bb253

bb253:
  br label %bb254

bb254:
  br label %bb255

bb255:
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bb256:
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bb257:
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bb258:
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bb259:
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bb260:
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bb261:
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bb262:
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bb263:
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bb264:
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bb265:
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bb266:
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bb267:
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bb268:
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bb269:
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bb270:
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bb271:
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bb272:
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bb273:
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bb274:
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bb275:
  br label %bb276

bb276:
  br label %bb277

bb277:
  br label %bb278

bb278:
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bb279:
  br label %bb280

bb280:
  br label %bb281

bb281:
  br label %bb282

bb282:
  br label %bb283

bb283:
  br label %bb284

bb284:
  br label %bb285

bb285:
  br label %bb286

bb286:
  br label %bb287

bb287:
  br label %bb288

bb288:
  br label %bb289

bb289:
  br label %bb290

bb290:
  br label %bb291

bb291:
  br label %bb292

bb292:
  br label %bb293

bb293:
  br label %bb294

bb294:
  br label %bb295

bb295:
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bb296:
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bb297:
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bb298:
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bb299:
  br label %bb300

bb300:
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bb301:
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bb302:
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bb303:
  br label %bb304

bb304:
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bb305:
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bb306:
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bb307:
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bb308:
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bb309:
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bb310:
  br label %bb311

bb311:
  br label %bb312

bb312:
  br label %bb313

bb313:
  br label %bb314

bb314:
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bb315:
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bb316:
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bb317:
  br label %bb318

bb318:
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bb319:
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bb320:
  br label %bb321

bb321:
  br label %bb322

bb322:
  br label %bb323

bb323:
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bb324:
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bb325:
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bb326:
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bb327:
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bb328:
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bb329:
  br label %bb330

bb330:
  br label %bb331

bb331:
  br label %bb332

bb332:
  br label %bb333

bb333:
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bb334:
  br label %bb335

bb335:
  br label %bb336

bb336:
  br label %bb337

bb337:
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bb338:
  br label %bb339

bb339:
  br label %bb340

bb340:
  br label %bb341

bb341:
  br label %bb342

bb342:
  br label %bb343

bb343:
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bb344:
  br label %bb345

bb345:
  br label %bb346

bb346:
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bb347:
  br label %bb348

bb348:
  br label %bb349

bb349:
  br label %bb350

bb350:
  br label %bb351

bb351:
  br label %bb352

bb352:
  br label %bb353

bb353:
  br label %bb354

bb354:
  br label %bb355

bb355:
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bb356:
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bb357:
  br label %bb358

bb358:
  br label %bb359

bb359:
  br label %bb360

bb360:
  br label %bb361

bb361:
  br label %bb362

bb362:
  br label %bb363

bb363:
  br label %bb364

bb364:
  br label %bb365

bb365:
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bb366:
  br label %bb367

bb367:
  br label %bb368

bb368:
  br label %bb369

bb369:
  br label %bb370

bb370:
  br label %bb371

bb371:
  br label %bb372

bb372:
  br label %bb373

bb373:
  br label %bb374

bb374:
  br label %bb375

bb375:
  br label %bb376

bb376:
  br label %bb377

bb377:
  br label %bb378

bb378:
  br label %bb379

bb379:
  br label %bb380

bb380:
  br label %bb381

bb381:
  br label %bb382

bb382:
  br label %bb383

bb383:
  br label %bb384

bb384:
  br label %bb385

bb385:
  br label %bb386

bb386:
  br label %bb387

bb387:
  br label %bb388

bb388:
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  br label %bb999

bb999:
  br label %bb1000

bb1000:
  ; CHECK: call{{.*}}@dfsan_union
  ; CHECK-NOT: phi
  %ab = mul i32 %a, %b
  ret i32 %ab
}