1 ; RUN: opt < %s -instcombine -S 2 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128:n8:16:32" 3 target triple = "i386-apple-darwin10.0" 4 5 define i32 @test0(i8 %tmp2) ssp { 6 entry: 7 %tmp3 = zext i8 %tmp2 to i32 8 %tmp8 = lshr i32 %tmp3, 6 9 %tmp9 = lshr i32 %tmp3, 7 10 %tmp10 = xor i32 %tmp9, 67108858 11 %tmp11 = xor i32 %tmp10, %tmp8 12 %tmp12 = xor i32 %tmp11, 0 13 ret i32 %tmp12 14 } 15 16 ; PR4905 17 define <2 x i64> @test1(<2 x i64> %x, <2 x i64> %y) nounwind { 18 entry: 19 %conv.i94 = bitcast <2 x i64> %y to <4 x i32> ; <<4 x i32>> [#uses=1] 20 %sub.i97 = sub <4 x i32> %conv.i94, undef ; <<4 x i32>> [#uses=1] 21 %conv3.i98 = bitcast <4 x i32> %sub.i97 to <2 x i64> ; <<2 x i64>> [#uses=2] 22 %conv2.i86 = bitcast <2 x i64> %conv3.i98 to <4 x i32> ; <<4 x i32>> [#uses=1] 23 %cmp.i87 = icmp sgt <4 x i32> undef, %conv2.i86 ; <<4 x i1>> [#uses=1] 24 %sext.i88 = sext <4 x i1> %cmp.i87 to <4 x i32> ; <<4 x i32>> [#uses=1] 25 %conv3.i89 = bitcast <4 x i32> %sext.i88 to <2 x i64> ; <<2 x i64>> [#uses=1] 26 %and.i = and <2 x i64> %conv3.i89, %conv3.i98 ; <<2 x i64>> [#uses=1] 27 %or.i = or <2 x i64> zeroinitializer, %and.i ; <<2 x i64>> [#uses=1] 28 %conv2.i43 = bitcast <2 x i64> %or.i to <4 x i32> ; <<4 x i32>> [#uses=1] 29 %sub.i = sub <4 x i32> zeroinitializer, %conv2.i43 ; <<4 x i32>> [#uses=1] 30 %conv3.i44 = bitcast <4 x i32> %sub.i to <2 x i64> ; <<2 x i64>> [#uses=1] 31 ret <2 x i64> %conv3.i44 32 } 33 34 35 ; PR4908 36 define void @test2(<1 x i16>* nocapture %b, i32* nocapture %c) nounwind ssp { 37 entry: 38 %arrayidx = getelementptr inbounds <1 x i16>, <1 x i16>* %b, i64 undef ; <<1 x i16>*> 39 %tmp2 = load <1 x i16>, <1 x i16>* %arrayidx ; <<1 x i16>> [#uses=1] 40 %tmp6 = bitcast <1 x i16> %tmp2 to i16 ; <i16> [#uses=1] 41 %tmp7 = zext i16 %tmp6 to i32 ; <i32> [#uses=1] 42 %ins = or i32 0, %tmp7 ; <i32> [#uses=1] 43 %arrayidx20 = getelementptr inbounds i32, i32* %c, i64 undef ; <i32*> [#uses=1] 44 store i32 %ins, i32* %arrayidx20 45 ret void 46 } 47 48 ; PR5262 49 @tmp2 = global i64 0 ; <i64*> [#uses=1] 50 51 declare void @use(i64) nounwind 52 53 define void @foo(i1) nounwind align 2 { 54 ; <label>:1 55 br i1 %0, label %2, label %3 56 57 ; <label>:2 ; preds = %1 58 br label %3 59 60 ; <label>:3 ; preds = %2, %1 61 %4 = phi i8 [ 1, %2 ], [ 0, %1 ] ; <i8> [#uses=1] 62 %5 = icmp eq i8 %4, 0 ; <i1> [#uses=1] 63 %6 = load i64, i64* @tmp2, align 8 ; <i64> [#uses=1] 64 %7 = select i1 %5, i64 0, i64 %6 ; <i64> [#uses=1] 65 br label %8 66 67 ; <label>:8 ; preds = %3 68 call void @use(i64 %7) 69 ret void 70 } 71 72 %t0 = type { i32, i32 } 73 %t1 = type { i32, i32, i32, i32, i32* } 74 75 declare %t0* @bar2(i64) 76 77 define void @bar3(i1, i1) nounwind align 2 { 78 ; <label>:2 79 br i1 %1, label %10, label %3 80 81 ; <label>:3 ; preds = %2 82 %4 = getelementptr inbounds %t0, %t0* null, i64 0, i32 1 ; <i32*> [#uses=0] 83 %5 = getelementptr inbounds %t1, %t1* null, i64 0, i32 4 ; <i32**> [#uses=1] 84 %6 = load i32*, i32** %5, align 8 ; <i32*> [#uses=1] 85 %7 = icmp ne i32* %6, null ; <i1> [#uses=1] 86 %8 = zext i1 %7 to i32 ; <i32> [#uses=1] 87 %9 = add i32 %8, 0 ; <i32> [#uses=1] 88 br label %10 89 90 ; <label>:10 ; preds = %3, %2 91 %11 = phi i32 [ %9, %3 ], [ 0, %2 ] ; <i32> [#uses=1] 92 br i1 %1, label %12, label %13 93 94 ; <label>:12 ; preds = %10 95 br label %13 96 97 ; <label>:13 ; preds = %12, %10 98 %14 = zext i32 %11 to i64 ; <i64> [#uses=1] 99 %15 = tail call %t0* @bar2(i64 %14) nounwind ; <%0*> [#uses=0] 100 ret void 101 } 102 103 104 105 106 ; PR5262 107 ; Make sure the PHI node gets put in a place where all of its operands dominate 108 ; it. 109 define i64 @test4(i1 %c, i64* %P) nounwind align 2 { 110 BB0: 111 br i1 %c, label %BB1, label %BB2 112 113 BB1: 114 br label %BB2 115 116 BB2: 117 %v5_ = phi i1 [ true, %BB0], [false, %BB1] 118 %v6 = load i64, i64* %P 119 br label %l8 120 121 l8: 122 br label %l10 123 124 l10: 125 %v11 = select i1 %v5_, i64 0, i64 %v6 126 ret i64 %v11 127 } 128 129 ; PR5471 130 define i32 @test5a() { 131 ret i32 0 132 } 133 134 define void @test5() personality i32 (...)* @__gxx_personality_v0 { 135 store i1 true, i1* undef 136 %r = invoke i32 @test5a() to label %exit unwind label %unwind 137 unwind: 138 %exn = landingpad {i8*, i32} 139 cleanup 140 br label %exit 141 exit: 142 ret void 143 } 144 145 146 ; PR5673 147 148 @test6g = external global i32* 149 150 define arm_aapcs_vfpcc i32 @test6(i32 %argc, i8** %argv) nounwind { 151 entry: 152 store i32* getelementptr (i32, i32* bitcast (i32 (i32, i8**)* @test6 to i32*), i32 -2048), i32** @test6g, align 4 153 unreachable 154 } 155 156 157 ; PR5827 158 159 %class.RuleBasedBreakIterator = type { i64 ()* } 160 %class.UStack = type { i8** } 161 162 define i32 @_ZN22RuleBasedBreakIterator15checkDictionaryEi(%class.RuleBasedBreakIterator* %this, i32 %x) align 2 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { 163 entry: 164 %breaks = alloca %class.UStack, align 4 ; <%class.UStack*> [#uses=3] 165 call void @_ZN6UStackC1Ei(%class.UStack* %breaks, i32 0) 166 %tobool = icmp ne i32 %x, 0 ; <i1> [#uses=1] 167 br i1 %tobool, label %cond.end, label %cond.false 168 169 terminate.handler: ; preds = %ehcleanup 170 %exc = landingpad { i8*, i32 } 171 cleanup 172 call void @_ZSt9terminatev() noreturn nounwind 173 unreachable 174 175 ehcleanup: ; preds = %cond.false 176 %exc1 = landingpad { i8*, i32 } 177 catch i8* null 178 invoke void @_ZN6UStackD1Ev(%class.UStack* %breaks) 179 to label %cont unwind label %terminate.handler 180 181 cont: ; preds = %ehcleanup 182 resume { i8*, i32 } %exc1 183 184 cond.false: ; preds = %entry 185 %tmp4 = getelementptr inbounds %class.RuleBasedBreakIterator, %class.RuleBasedBreakIterator* %this, i32 0, i32 0 ; <i64 ()**> [#uses=1] 186 %tmp5 = load i64 ()*, i64 ()** %tmp4 ; <i64 ()*> [#uses=1] 187 %call = invoke i64 %tmp5() 188 to label %cond.end unwind label %ehcleanup ; <i64> [#uses=1] 189 190 cond.end: ; preds = %cond.false, %entry 191 %cond = phi i64 [ 0, %entry ], [ %call, %cond.false ] ; <i64> [#uses=1] 192 %conv = trunc i64 %cond to i32 ; <i32> [#uses=1] 193 call void @_ZN6UStackD1Ev(%class.UStack* %breaks) 194 ret i32 %conv 195 } 196 197 declare void @_ZN6UStackC1Ei(%class.UStack*, i32) 198 199 declare void @_ZN6UStackD1Ev(%class.UStack*) 200 201 declare i32 @__gxx_personality_v0(...) 202 203 declare void @_ZSt9terminatev() 204 205 declare void @_Unwind_Resume_or_Rethrow(i8*) 206 207 208 209 ; rdar://7590304 210 define i8* @test10(i8* %self, i8* %tmp3) personality i32 (...)* @__gxx_personality_v0 { 211 entry: 212 store i1 true, i1* undef 213 store i1 true, i1* undef 214 invoke void @test10a() 215 to label %invoke.cont unwind label %try.handler ; <i8*> [#uses=0] 216 217 invoke.cont: ; preds = %entry 218 unreachable 219 220 try.handler: ; preds = %entry 221 %exn = landingpad {i8*, i32} 222 catch i8* null 223 ret i8* %self 224 } 225 226 define void @test10a() { 227 ret void 228 } 229 230 231 ; PR6193 232 define i32 @test11(i32 %aMaskWidth, i8 %aStride) nounwind { 233 entry: 234 %conv41 = sext i8 %aStride to i32 235 %neg = xor i32 %conv41, -1 236 %and42 = and i32 %aMaskWidth, %neg 237 %and47 = and i32 130, %conv41 238 %or = or i32 %and42, %and47 239 ret i32 %or 240 } 241 242 ; PR6503 243 define void @test12(i32* %A) nounwind { 244 entry: 245 %tmp1 = load i32, i32* %A 246 %cmp = icmp ugt i32 1, %tmp1 ; <i1> [#uses=1] 247 %conv = zext i1 %cmp to i32 ; <i32> [#uses=1] 248 %tmp2 = load i32, i32* %A 249 %cmp3 = icmp ne i32 %tmp2, 0 ; <i1> [#uses=1] 250 %conv4 = zext i1 %cmp3 to i32 ; <i32> [#uses=1] 251 %or = or i32 %conv, %conv4 ; <i32> [#uses=1] 252 %cmp5 = icmp ugt i32 undef, %or ; <i1> [#uses=1] 253 %conv6 = zext i1 %cmp5 to i32 ; <i32> [#uses=0] 254 ret void 255 } 256 257 %s1 = type { %s2, %s2, [6 x %s2], i32, i32, i32, [1 x i32], [0 x i8] } 258 %s2 = type { i64 } 259 define void @test13() nounwind ssp { 260 entry: 261 %0 = getelementptr inbounds %s1, %s1* null, i64 0, i32 2, i64 0, i32 0 262 %1 = bitcast i64* %0 to i32* 263 %2 = getelementptr inbounds %s1, %s1* null, i64 0, i32 2, i64 1, i32 0 264 %.pre = load i32, i32* %1, align 8 265 %3 = lshr i32 %.pre, 19 266 %brmerge = or i1 undef, undef 267 %4 = and i32 %3, 3 268 %5 = add nsw i32 %4, 1 269 %6 = shl i32 %5, 19 270 %7 = add i32 %6, 1572864 271 %8 = and i32 %7, 1572864 272 %9 = load i64, i64* %2, align 8 273 %trunc156 = trunc i64 %9 to i32 274 %10 = and i32 %trunc156, -1537 275 %11 = and i32 %10, -6145 276 %12 = or i32 %11, 2048 277 %13 = and i32 %12, -24577 278 %14 = or i32 %13, 16384 279 %15 = or i32 %14, 98304 280 store i32 %15, i32* undef, align 8 281 %16 = and i32 %15, -1572865 282 %17 = or i32 %16, %8 283 store i32 %17, i32* undef, align 8 284 %18 = and i32 %17, -449 285 %19 = or i32 %18, 64 286 store i32 %19, i32* undef, align 8 287 unreachable 288 } 289 290 291 ; PR8807 292 declare i32 @test14f(i8* (i8*)*) nounwind 293 294 define void @test14() nounwind readnone { 295 entry: 296 %tmp = bitcast i32 (i8* (i8*)*)* @test14f to i32 (i32*)* 297 %call10 = call i32 %tmp(i32* byval undef) 298 ret void 299 } 300 301 302 ; PR8896 303 @g_54 = external global [7 x i16] 304 305 define void @test15(i32* %p_92) nounwind { 306 entry: 307 %0 = load i32, i32* %p_92, align 4 308 %1 = icmp ne i32 %0, 0 309 %2 = zext i1 %1 to i32 310 %3 = call i32 @func_14() nounwind 311 %4 = trunc i32 %3 to i16 312 %5 = sext i16 %4 to i32 313 %6 = trunc i32 %5 to i16 314 br i1 undef, label %"3", label %"5" 315 316 "3": ; preds = %entry 317 %7 = sext i16 %6 to i32 318 %8 = ashr i32 %7, -1649554541 319 %9 = trunc i32 %8 to i16 320 br label %"5" 321 322 "5": ; preds = %"3", %entry 323 %10 = phi i16 [ %9, %"3" ], [ %6, %entry ] 324 %11 = sext i16 %10 to i32 325 %12 = xor i32 %2, %11 326 %13 = sext i32 %12 to i64 327 %14 = icmp ne i64 %13, 0 328 br i1 %14, label %return, label %"7" 329 330 "7": ; preds = %"5" 331 ret void 332 333 return: ; preds = %"5" 334 ret void 335 } 336 337 declare i32 @func_14() 338 339 340 define double @test16(i32 %a) nounwind { 341 %cmp = icmp slt i32 %a, 2 342 %select = select i1 %cmp, double 2.000000e+00, double 3.141592e+00 343 ret double %select 344 } 345 346 347 ; PR8983 348 %struct.basic_ios = type { i8 } 349 350 define %struct.basic_ios *@test17() ssp { 351 entry: 352 %add.ptr.i = getelementptr i8, i8* null, i64 undef 353 %0 = bitcast i8* %add.ptr.i to %struct.basic_ios* 354 ret %struct.basic_ios* %0 355 } 356 357 ; PR9013 358 define void @test18() nounwind ssp { 359 entry: 360 br label %for.cond 361 362 for.cond: ; preds = %for.inc, %entry 363 %l_197.0 = phi i32 [ 0, %entry ], [ %sub.i, %for.inc ] 364 br label %for.inc 365 366 for.inc: ; preds = %for.cond 367 %conv = and i32 %l_197.0, 255 368 %sub.i = add nsw i32 %conv, -1 369 br label %for.cond 370 371 return: ; No predecessors! 372 ret void 373 } 374 375 ; PR11275 376 declare void @test18b() noreturn 377 declare void @test18foo(double**) 378 declare void @test18a() noreturn 379 define fastcc void @test18x(i8* %t0, i1 %b) uwtable align 2 personality i32 (...)* @__gxx_personality_v0 { 380 entry: 381 br i1 %b, label %e1, label %e2 382 e1: 383 %t2 = bitcast i8* %t0 to double** 384 invoke void @test18b() noreturn 385 to label %u unwind label %lpad 386 e2: 387 %t4 = bitcast i8* %t0 to double** 388 invoke void @test18a() noreturn 389 to label %u unwind label %lpad 390 lpad: 391 %t5 = phi double** [ %t2, %e1 ], [ %t4, %e2 ] 392 %lpad.nonloopexit262 = landingpad { i8*, i32 } 393 cleanup 394 call void @test18foo(double** %t5) 395 unreachable 396 u: 397 unreachable 398 } 399
