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1; RUN: llc -O2 -mtriple=hexagon -mcpu=hexagonv5 < %s | FileCheck %s2; we do not want to see a segv.3; CHECK-NOT: segmentation4; CHECK: call5 6target datalayout = "e-m:e-p:32:32-i1:32-i64:64-a:0-v32:32-n16:32"7target triple = "hexagon"8 9%"class.std::__1::basic_string" = type { %"class.std::__1::__compressed_pair" }10%"class.std::__1::__compressed_pair" = type { %"class.std::__1::__libcpp_compressed_pair_imp" }11%"class.std::__1::__libcpp_compressed_pair_imp" = type { %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep" }12%"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep" = type { %union.anon }13%union.anon = type { %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__long" }14%"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__long" = type { i32, i32, ptr }15%"class.std::__1::ios_base" = type { ptr, i32, i32, i32, i32, i32, ptr, ptr, ptr, ptr, i32, i32, ptr, i32, i32, ptr, i32, i32 }16%"class.std::__1::basic_streambuf" = type { ptr, %"class.std::__1::locale", ptr, ptr, ptr, ptr, ptr, ptr }17%"class.std::__1::locale" = type { ptr }18%"class.std::__1::locale::__imp" = type opaque19%"class.std::__1::allocator" = type { i8 }20%"class.std::__1::ostreambuf_iterator" = type { ptr }21%"class.std::__1::__basic_string_common" = type { i8 }22%"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__short" = type { %union.anon.0, [11 x i8] }23%union.anon.0 = type { i8 }24 25; Function Attrs: nounwind26declare void @llvm.memcpy.p0.p0.i32(ptr nocapture, ptr nocapture readonly, i32, i1) #027 28declare i32 @__gxx_personality_v0(...)29 30; Function Attrs: nounwind31declare void @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEED1Ev(ptr) #132 33define weak_odr hidden i32 @_ZNSt3__116__pad_and_outputIcNS_11char_traitsIcEEEENS_19ostreambuf_iteratorIT_T0_EES6_PKS4_S8_S8_RNS_8ios_baseES4_(i32 %__s.coerce, ptr %__ob, ptr %__op, ptr %__oe, ptr nonnull %__iob, i8 zeroext %__fl) #2 personality ptr @__gxx_personality_v0 {34entry:35 %this.addr.i66 = alloca ptr, align 436 %__s.addr.i67 = alloca ptr, align 437 %__n.addr.i68 = alloca i32, align 438 %__p.addr.i.i = alloca ptr, align 439 %this.addr.i.i.i13.i.i = alloca ptr, align 440 %this.addr.i.i14.i.i = alloca ptr, align 441 %this.addr.i15.i.i = alloca ptr, align 442 %__x.addr.i.i.i.i.i = alloca ptr, align 443 %__r.addr.i.i.i.i = alloca ptr, align 444 %this.addr.i.i.i4.i.i = alloca ptr, align 445 %this.addr.i.i5.i.i = alloca ptr, align 446 %this.addr.i6.i.i = alloca ptr, align 447 %this.addr.i.i.i.i.i56 = alloca ptr, align 448 %this.addr.i.i.i.i57 = alloca ptr, align 449 %this.addr.i.i.i58 = alloca ptr, align 450 %this.addr.i.i59 = alloca ptr, align 451 %this.addr.i60 = alloca ptr, align 452 %this.addr.i.i.i.i.i = alloca ptr, align 453 %this.addr.i.i.i.i = alloca ptr, align 454 %this.addr.i.i.i = alloca ptr, align 455 %this.addr.i.i = alloca ptr, align 456 %__n.addr.i.i = alloca i32, align 457 %__c.addr.i.i = alloca i8, align 158 %this.addr.i53 = alloca ptr, align 459 %__n.addr.i54 = alloca i32, align 460 %__c.addr.i = alloca i8, align 161 %this.addr.i46 = alloca ptr, align 462 %__s.addr.i47 = alloca ptr, align 463 %__n.addr.i48 = alloca i32, align 464 %this.addr.i44 = alloca ptr, align 465 %__s.addr.i = alloca ptr, align 466 %__n.addr.i = alloca i32, align 467 %this.addr.i41 = alloca ptr, align 468 %__wide.addr.i = alloca i32, align 469 %__r.i = alloca i32, align 470 %this.addr.i = alloca ptr, align 471 %retval = alloca %"class.std::__1::ostreambuf_iterator", align 472 %__s = alloca %"class.std::__1::ostreambuf_iterator", align 473 %__ob.addr = alloca ptr, align 474 %__op.addr = alloca ptr, align 475 %__oe.addr = alloca ptr, align 476 %__iob.addr = alloca ptr, align 477 %__fl.addr = alloca i8, align 178 %__sz = alloca i32, align 479 %__ns = alloca i32, align 480 %__np = alloca i32, align 481 %__sp = alloca %"class.std::__1::basic_string", align 482 %exn.slot = alloca ptr83 %ehselector.slot = alloca i3284 %cleanup.dest.slot = alloca i3285 %coerce.val.ip = inttoptr i32 %__s.coerce to ptr86 store ptr %coerce.val.ip, ptr %__s87 store ptr %__ob, ptr %__ob.addr, align 488 store ptr %__op, ptr %__op.addr, align 489 store ptr %__oe, ptr %__oe.addr, align 490 store ptr %__iob, ptr %__iob.addr, align 491 store i8 %__fl, ptr %__fl.addr, align 192 %0 = load ptr, ptr %__s, align 493 %cmp = icmp eq ptr %0, null94 br i1 %cmp, label %if.then, label %if.end95 96if.then: ; preds = %entry97 call void @llvm.memcpy.p0.p0.i32(ptr align 4 %retval, ptr align 4 %__s, i32 4, i1 false)98 br label %return99 100if.end: ; preds = %entry101 %1 = load ptr, ptr %__oe.addr, align 4102 %2 = load ptr, ptr %__ob.addr, align 4103 %sub.ptr.lhs.cast = ptrtoint ptr %1 to i32104 %sub.ptr.rhs.cast = ptrtoint ptr %2 to i32105 %sub.ptr.sub = sub i32 %sub.ptr.lhs.cast, %sub.ptr.rhs.cast106 store i32 %sub.ptr.sub, ptr %__sz, align 4107 %3 = load ptr, ptr %__iob.addr, align 4108 store ptr %3, ptr %this.addr.i, align 4109 %this1.i = load ptr, ptr %this.addr.i110 %__width_.i = getelementptr inbounds %"class.std::__1::ios_base", ptr %this1.i, i32 0, i32 3111 %4 = load i32, ptr %__width_.i, align 4112 store i32 %4, ptr %__ns, align 4113 %5 = load i32, ptr %__ns, align 4114 %6 = load i32, ptr %__sz, align 4115 %cmp1 = icmp sgt i32 %5, %6116 br i1 %cmp1, label %if.then2, label %if.else117 118if.then2: ; preds = %if.end119 %7 = load i32, ptr %__sz, align 4120 %8 = load i32, ptr %__ns, align 4121 %sub = sub nsw i32 %8, %7122 store i32 %sub, ptr %__ns, align 4123 br label %if.end3124 125if.else: ; preds = %if.end126 store i32 0, ptr %__ns, align 4127 br label %if.end3128 129if.end3: ; preds = %if.else, %if.then2130 %9 = load ptr, ptr %__op.addr, align 4131 %10 = load ptr, ptr %__ob.addr, align 4132 %sub.ptr.lhs.cast4 = ptrtoint ptr %9 to i32133 %sub.ptr.rhs.cast5 = ptrtoint ptr %10 to i32134 %sub.ptr.sub6 = sub i32 %sub.ptr.lhs.cast4, %sub.ptr.rhs.cast5135 store i32 %sub.ptr.sub6, ptr %__np, align 4136 %11 = load i32, ptr %__np, align 4137 %cmp7 = icmp sgt i32 %11, 0138 br i1 %cmp7, label %if.then8, label %if.end15139 140if.then8: ; preds = %if.end3141 %12 = load ptr, ptr %__s, align 4142 %13 = load ptr, ptr %__ob.addr, align 4143 %14 = load i32, ptr %__np, align 4144 store ptr %12, ptr %this.addr.i46, align 4145 store ptr %13, ptr %__s.addr.i47, align 4146 store i32 %14, ptr %__n.addr.i48, align 4147 %this1.i49 = load ptr, ptr %this.addr.i46148 %vtable.i50 = load ptr, ptr %this1.i49149 %vfn.i51 = getelementptr inbounds ptr, ptr %vtable.i50, i64 12150 %15 = load ptr, ptr %vfn.i51151 %16 = load ptr, ptr %__s.addr.i47, align 4152 %17 = load i32, ptr %__n.addr.i48, align 4153 %call.i52 = call i32 %15(ptr %this1.i49, ptr %16, i32 %17)154 %18 = load i32, ptr %__np, align 4155 %cmp11 = icmp ne i32 %call.i52, %18156 br i1 %cmp11, label %if.then12, label %if.end14157 158if.then12: ; preds = %if.then8159 store ptr null, ptr %__s, align 4160 call void @llvm.memcpy.p0.p0.i32(ptr align 4 %retval, ptr align 4 %__s, i32 4, i1 false)161 br label %return162 163if.end14: ; preds = %if.then8164 br label %if.end15165 166if.end15: ; preds = %if.end14, %if.end3167 %19 = load i32, ptr %__ns, align 4168 %cmp16 = icmp sgt i32 %19, 0169 br i1 %cmp16, label %if.then17, label %if.end25170 171if.then17: ; preds = %if.end15172 %20 = load i32, ptr %__ns, align 4173 %21 = load i8, ptr %__fl.addr, align 1174 store ptr %__sp, ptr %this.addr.i53, align 4175 store i32 %20, ptr %__n.addr.i54, align 4176 store i8 %21, ptr %__c.addr.i, align 1177 %this1.i55 = load ptr, ptr %this.addr.i53178 %22 = load i32, ptr %__n.addr.i54, align 4179 %23 = load i8, ptr %__c.addr.i, align 1180 store ptr %this1.i55, ptr %this.addr.i.i, align 4181 store i32 %22, ptr %__n.addr.i.i, align 4182 store i8 %23, ptr %__c.addr.i.i, align 1183 %this1.i.i = load ptr, ptr %this.addr.i.i184 store ptr %this1.i.i, ptr %this.addr.i.i.i, align 4185 %this1.i.i.i = load ptr, ptr %this.addr.i.i.i186 store ptr %this1.i.i.i, ptr %this.addr.i.i.i.i, align 4187 %this1.i.i.i.i = load ptr, ptr %this.addr.i.i.i.i188 store ptr %this1.i.i.i.i, ptr %this.addr.i.i.i.i.i, align 4189 %this1.i.i.i.i.i = load ptr, ptr %this.addr.i.i.i.i.i190 %24 = load i32, ptr %__n.addr.i.i, align 4191 %25 = load i8, ptr %__c.addr.i.i, align 1192 call void @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEjc(ptr %this1.i.i, i32 %24, i8 zeroext %25)193 %26 = load ptr, ptr %__s, align 4194 store ptr %__sp, ptr %this.addr.i60, align 4195 %this1.i61 = load ptr, ptr %this.addr.i60196 store ptr %this1.i61, ptr %this.addr.i.i59, align 4197 %this1.i.i62 = load ptr, ptr %this.addr.i.i59198 store ptr %this1.i.i62, ptr %this.addr.i.i.i58, align 4199 %this1.i.i.i63 = load ptr, ptr %this.addr.i.i.i58200 store ptr %this1.i.i.i63, ptr %this.addr.i.i.i.i57, align 4201 %this1.i.i.i.i64 = load ptr, ptr %this.addr.i.i.i.i57202 store ptr %this1.i.i.i.i64, ptr %this.addr.i.i.i.i.i56, align 4203 %this1.i.i.i.i.i65 = load ptr, ptr %this.addr.i.i.i.i.i56204 %27 = getelementptr inbounds %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep", ptr %this1.i.i.i.i.i65, i32 0, i32 0205 %28 = getelementptr inbounds %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__short", ptr %27, i32 0, i32 0206 %29 = load i8, ptr %28, align 1207 %conv.i.i.i = zext i8 %29 to i32208 %and.i.i.i = and i32 %conv.i.i.i, 1209 %tobool.i.i.i = icmp ne i32 %and.i.i.i, 0210 br i1 %tobool.i.i.i, label %cond.true.i.i, label %cond.false.i.i211 212cond.true.i.i: ; preds = %if.then17213 store ptr %this1.i.i62, ptr %this.addr.i15.i.i, align 4214 %this1.i16.i.i = load ptr, ptr %this.addr.i15.i.i215 store ptr %this1.i16.i.i, ptr %this.addr.i.i14.i.i, align 4216 %this1.i.i18.i.i = load ptr, ptr %this.addr.i.i14.i.i217 store ptr %this1.i.i18.i.i, ptr %this.addr.i.i.i13.i.i, align 4218 %this1.i.i.i19.i.i = load ptr, ptr %this.addr.i.i.i13.i.i219 %30 = getelementptr inbounds %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep", ptr %this1.i.i.i19.i.i, i32 0, i32 0220 %__data_.i21.i.i = getelementptr inbounds %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__long", ptr %30, i32 0, i32 2221 %31 = load ptr, ptr %__data_.i21.i.i, align 4222 br label %_ZNKSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE4dataEv.exit223 224cond.false.i.i: ; preds = %if.then17225 store ptr %this1.i.i62, ptr %this.addr.i6.i.i, align 4226 %this1.i7.i.i = load ptr, ptr %this.addr.i6.i.i227 store ptr %this1.i7.i.i, ptr %this.addr.i.i5.i.i, align 4228 %this1.i.i9.i.i = load ptr, ptr %this.addr.i.i5.i.i229 store ptr %this1.i.i9.i.i, ptr %this.addr.i.i.i4.i.i, align 4230 %this1.i.i.i10.i.i = load ptr, ptr %this.addr.i.i.i4.i.i231 %32 = getelementptr inbounds %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__rep", ptr %this1.i.i.i10.i.i, i32 0, i32 0232 %__data_.i.i.i = getelementptr inbounds %"struct.std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::__short", ptr %32, i32 0, i32 1233 store ptr %__data_.i.i.i, ptr %__r.addr.i.i.i.i, align 4234 %33 = load ptr, ptr %__r.addr.i.i.i.i, align 4235 store ptr %33, ptr %__x.addr.i.i.i.i.i, align 4236 %34 = load ptr, ptr %__x.addr.i.i.i.i.i, align 4237 br label %_ZNKSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE4dataEv.exit238 239_ZNKSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE4dataEv.exit: ; preds = %cond.false.i.i, %cond.true.i.i240 %cond.i.i = phi ptr [ %31, %cond.true.i.i ], [ %34, %cond.false.i.i ]241 store ptr %cond.i.i, ptr %__p.addr.i.i, align 4242 %35 = load ptr, ptr %__p.addr.i.i, align 4243 %36 = load i32, ptr %__ns, align 4244 store ptr %26, ptr %this.addr.i66, align 4245 store ptr %35, ptr %__s.addr.i67, align 4246 store i32 %36, ptr %__n.addr.i68, align 4247 %this1.i69 = load ptr, ptr %this.addr.i66248 %vtable.i70 = load ptr, ptr %this1.i69249 %vfn.i71 = getelementptr inbounds ptr, ptr %vtable.i70, i64 12250 %37 = load ptr, ptr %vfn.i71251 %38 = load ptr, ptr %__s.addr.i67, align 4252 %39 = load i32, ptr %__n.addr.i68, align 4253 %call.i7273 = invoke i32 %37(ptr %this1.i69, ptr %38, i32 %39)254 to label %_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKci.exit unwind label %lpad255 256_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKci.exit: ; preds = %_ZNKSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE4dataEv.exit257 br label %invoke.cont258 259invoke.cont: ; preds = %_ZNSt3__115basic_streambufIcNS_11char_traitsIcEEE5sputnEPKci.exit260 %40 = load i32, ptr %__ns, align 4261 %cmp21 = icmp ne i32 %call.i7273, %40262 br i1 %cmp21, label %if.then22, label %if.end24263 264if.then22: ; preds = %invoke.cont265 store ptr null, ptr %__s, align 4266 call void @llvm.memcpy.p0.p0.i32(ptr align 4 %retval, ptr align 4 %__s, i32 4, i1 false)267 store i32 1, ptr %cleanup.dest.slot268 br label %cleanup269 270lpad: ; preds = %_ZNKSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE4dataEv.exit271 %41 = landingpad { ptr, i32 }272 cleanup273 %42 = extractvalue { ptr, i32 } %41, 0274 store ptr %42, ptr %exn.slot275 %43 = extractvalue { ptr, i32 } %41, 1276 store i32 %43, ptr %ehselector.slot277 call void @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEED1Ev(ptr %__sp) #0278 br label %eh.resume279 280if.end24: ; preds = %invoke.cont281 store i32 0, ptr %cleanup.dest.slot282 br label %cleanup283 284cleanup: ; preds = %if.end24, %if.then22285 call void @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEED1Ev(ptr %__sp) #0286 %cleanup.dest = load i32, ptr %cleanup.dest.slot287 switch i32 %cleanup.dest, label %unreachable [288 i32 0, label %cleanup.cont289 i32 1, label %return290 ]291 292cleanup.cont: ; preds = %cleanup293 br label %if.end25294 295if.end25: ; preds = %cleanup.cont, %if.end15296 %44 = load ptr, ptr %__oe.addr, align 4297 %45 = load ptr, ptr %__op.addr, align 4298 %sub.ptr.lhs.cast26 = ptrtoint ptr %44 to i32299 %sub.ptr.rhs.cast27 = ptrtoint ptr %45 to i32300 %sub.ptr.sub28 = sub i32 %sub.ptr.lhs.cast26, %sub.ptr.rhs.cast27301 store i32 %sub.ptr.sub28, ptr %__np, align 4302 %46 = load i32, ptr %__np, align 4303 %cmp29 = icmp sgt i32 %46, 0304 br i1 %cmp29, label %if.then30, label %if.end37305 306if.then30: ; preds = %if.end25307 %47 = load ptr, ptr %__s, align 4308 %48 = load ptr, ptr %__op.addr, align 4309 %49 = load i32, ptr %__np, align 4310 store ptr %47, ptr %this.addr.i44, align 4311 store ptr %48, ptr %__s.addr.i, align 4312 store i32 %49, ptr %__n.addr.i, align 4313 %this1.i45 = load ptr, ptr %this.addr.i44314 %vtable.i = load ptr, ptr %this1.i45315 %vfn.i = getelementptr inbounds ptr, ptr %vtable.i, i64 12316 %50 = load ptr, ptr %vfn.i317 %51 = load ptr, ptr %__s.addr.i, align 4318 %52 = load i32, ptr %__n.addr.i, align 4319 %call.i = call i32 %50(ptr %this1.i45, ptr %51, i32 %52)320 %53 = load i32, ptr %__np, align 4321 %cmp33 = icmp ne i32 %call.i, %53322 br i1 %cmp33, label %if.then34, label %if.end36323 324if.then34: ; preds = %if.then30325 store ptr null, ptr %__s, align 4326 call void @llvm.memcpy.p0.p0.i32(ptr align 4 %retval, ptr align 4 %__s, i32 4, i1 false)327 br label %return328 329if.end36: ; preds = %if.then30330 br label %if.end37331 332if.end37: ; preds = %if.end36, %if.end25333 %54 = load ptr, ptr %__iob.addr, align 4334 store ptr %54, ptr %this.addr.i41, align 4335 store i32 0, ptr %__wide.addr.i, align 4336 %this1.i42 = load ptr, ptr %this.addr.i41337 %__width_.i43 = getelementptr inbounds %"class.std::__1::ios_base", ptr %this1.i42, i32 0, i32 3338 %55 = load i32, ptr %__width_.i43, align 4339 store i32 %55, ptr %__r.i, align 4340 %56 = load i32, ptr %__wide.addr.i, align 4341 %__width_2.i = getelementptr inbounds %"class.std::__1::ios_base", ptr %this1.i42, i32 0, i32 3342 store i32 %56, ptr %__width_2.i, align 4343 %57 = load i32, ptr %__r.i, align 4344 call void @llvm.memcpy.p0.p0.i32(ptr align 4 %retval, ptr align 4 %__s, i32 4, i1 false)345 br label %return346 347return: ; preds = %if.end37, %if.then34, %cleanup, %if.then12, %if.then348 %58 = load ptr, ptr %retval349 %coerce.val.pi = ptrtoint ptr %58 to i32350 ret i32 %coerce.val.pi351 352eh.resume: ; preds = %lpad353 %exn = load ptr, ptr %exn.slot354 %sel = load i32, ptr %ehselector.slot355 %lpad.val = insertvalue { ptr, i32 } undef, ptr %exn, 0356 %lpad.val40 = insertvalue { ptr, i32 } %lpad.val, i32 %sel, 1357 resume { ptr, i32 } %lpad.val40358 359unreachable: ; preds = %cleanup360 unreachable361}362 363declare void @_ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEjc(ptr, i32, i8 zeroext) #2364 365attributes #0 = { nounwind }366attributes #1 = { nounwind "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }367attributes #2 = { "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }368 369!llvm.ident = !{!0}370 371!0 = !{!"Clang 3.1"}372