; LLVM IR from chensoft/libsocket :: lib/libchen/src/sys/sys.ll (ZN4chen3sys4uuidB5cxx11Ev)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator" = type { i8 }
%"class.std::__cxx11::basic_stringstream" = type { %"class.std::basic_iostream.base", %"class.std::__cxx11::basic_stringbuf", %"class.std::basic_ios" }
%"class.std::basic_iostream.base" = type { %"class.std::basic_istream.base", %"class.std::basic_ostream.base" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::basic_ostream.base" = type { ptr }
%"class.std::__cxx11::basic_stringbuf" = type { %"class.std::basic_streambuf", i32, %"class.std::__cxx11::basic_string" }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%"class.std::locale" = type { ptr }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::random_device" = type { %union.anon.0 }
%union.anon.0 = type { %"class.std::mersenne_twister_engine" }
%"class.std::mersenne_twister_engine" = type { [624 x i64], i64 }

@.str = external hidden unnamed_addr constant [37 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4chen3sys4uuidB5cxx11Ev(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8 %0) #0 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca i1, align 1
  %4 = alloca %"class.std::allocator", align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::__cxx11::basic_stringstream", align 8
  %8 = alloca %"class.std::random_device", align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca i32, align 4
  %12 = alloca i8, align 1
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca %"class.std::__cxx11::basic_string", align 8
  %16 = alloca %"class.std::allocator", align 1
  %17 = alloca %"class.std::__cxx11::basic_string", align 8
  store ptr %0, ptr %2, align 8
  store i1 false, ptr %3, align 1
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #5
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef @.str, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %18 unwind label %27

18:                                               ; preds = %1
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #5
  call void @llvm.lifetime.start.p0(i64 392, ptr %7) #5
  invoke void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1Ev(ptr noundef nonnull align 8 dereferenceable(128) %7)
          to label %19 unwind label %31

19:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 5000, ptr %8) #5
  invoke void @_ZNSt13random_deviceC2Ev(ptr noundef nonnull align 8 dereferenceable(5000) %8)
          to label %20 unwind label %35

20:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  store i64 0, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  %21 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  store i64 %21, ptr %10, align 8, !tbaa !5
  br label %22

22:                                               ; preds = %98, %20
  %23 = load i64, ptr %9, align 8, !tbaa !5
  %24 = load i64, ptr %10, align 8, !tbaa !5
  %25 = icmp ult i64 %23, %24
  br i1 %25, label %39, label %26

26:                                               ; preds = %22
  store i32 2, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  br label %130

27:                                               ; preds = %1
  %28 = landingpad { ptr, i32 }
          cleanup
  %29 = extractvalue { ptr, i32 } %28, 0
  store ptr %29, ptr %5, align 8
  %30 = extractvalue { ptr, i32 } %28, 1
  store i32 %30, ptr %6, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #5
  br label %136

31:                                               ; preds = %18
  %32 = landingpad { ptr, i32 }
          cleanup
  %33 = extractvalue { ptr, i32 } %32, 0
  store ptr %33, ptr %5, align 8
  %34 = extractvalue { ptr, i32 } %32, 1
  store i32 %34, ptr %6, align 4
  br label %133

35:                                               ; preds = %19
  %36 = landingpad { ptr, i32 }
          cleanup
  %37 = extractvalue { ptr, i32 } %36, 0
  store ptr %37, ptr %5, align 8
  %38 = extractvalue { ptr, i32 } %36, 1
  store i32 %38, ptr %6, align 4
  br label %132

39:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 1, ptr %12) #5
  %40 = load i64, ptr %9, align 8, !tbaa !5
  %41 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %40)
          to label %42 unwind label %52

42:                                               ; preds = %39
  %43 = load i8, ptr %41, align 1, !tbaa !9
  store i8 %43, ptr %12, align 1, !tbaa !9
  %44 = load i8, ptr %12, align 1, !tbaa !9
  %45 = sext i8 %44 to i32
  %46 = icmp ne i32 %45, 120
  br i1 %46, label %47, label %56

47:                                               ; preds = %42
  %48 = load i8, ptr %12, align 1, !tbaa !9
  %49 = sext i8 %48 to i32
  %50 = icmp ne i32 %49, 121
  br i1 %50, label %51, label %56

51:                                               ; preds = %47
  store i32 4, ptr %11, align 4
  br label %95

52:                                               ; preds = %39
  %53 = landingpad { ptr, i32 }
          cleanup
  %54 = extractvalue { ptr, i32 } %53, 0
  store ptr %54, ptr %5, align 8
  %55 = extractvalue { ptr, i32 } %53, 1
  store i32 %55, ptr %6, align 4
  br label %129

56:                                               ; preds = %47, %42
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #5
  %57 = invoke noundef i32 @_ZNSt13random_deviceclEv(ptr noundef nonnull align 8 dereferenceable(5000) %8)
          to label %58 unwind label %101

58:                                               ; preds = %56
  %59 = uitofp i32 %57 to float
  %60 = invoke noundef i32 @_ZNSt13random_device3maxEv()
          to label %61 unwind label %101

61:                                               ; preds = %58
  %62 = uitofp i32 %60 to float
  %63 = fdiv float %59, %62
  %64 = fmul float %63, 1.600000e+01
  %65 = fptosi float %64 to i32
  %66 = or i32 %65, 0
  store i32 %66, ptr %13, align 4, !tbaa !10
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #5
  %67 = load i8, ptr %12, align 1, !tbaa !9
  %68 = sext i8 %67 to i32
  %69 = icmp eq i32 %68, 120
  br i1 %69, label %70, label %72

70:                                               ; preds = %61
  %71 = load i32, ptr %13, align 4, !tbaa !10
  br label %76

72:                                               ; preds = %61
  %73 = load i32, ptr %13, align 4, !tbaa !10
  %74 = and i32 %73, 3
  %75 = or i32 %74, 8
  br label %76

76:                                               ; preds = %72, %70
  %77 = phi i32 [ %71, %70 ], [ %75, %72 ]
  store i32 %77, ptr %14, align 4, !tbaa !10
  call void @llvm.lifetime.start.p0(i64 32, ptr %15) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %16) #5
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %15, ptr noundef @.str.1, ptr noundef nonnull align 1 dereferenceable(1) %16)
          to label %78 unwind label %105

78:                                               ; preds = %76
  invoke void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEE3strERKNS_12basic_stringIcS2_S3_EE(ptr noundef nonnull align 8 dereferenceable(128) %7, ptr noundef nonnull align 8 dereferenceable(32) %15)
          to label %79 unwind label %109

79:                                               ; preds = %78
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %15) #5
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %16) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %15) #5
  %80 = getelementptr inbounds i8, ptr %7, i64 16
  %81 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSt8ios_baseS0_E(ptr noundef nonnull align 8 dereferenceable(8) %80, ptr noundef @_ZSt3hexRSt8ios_base)
          to label %82 unwind label %114

82:                                               ; preds = %79
  %83 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSt8ios_baseS0_E(ptr noundef nonnull align 8 dereferenceable(8) %81, ptr noundef @_ZSt9uppercaseRSt8ios_base)
          to label %84 unwind label %114

84:                                               ; preds = %82
  %85 = load i32, ptr %14, align 4, !tbaa !10
  %86 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %83, i32 noundef %85)
          to label %87 unwind label %114

87:                                               ; preds = %84
  call void @llvm.lifetime.start.p0(i64 32, ptr %17) #5
  invoke void @_ZNKSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEE3strEv(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %17, ptr noundef nonnull align 8 dereferenceable(128) %7)
          to label %88 unwind label %118

88:                                               ; preds = %87
  %89 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %17, i64 noundef 0)
          to label %90 unwind label %122

90:                                               ; preds = %88
  %91 = load i8, ptr %89, align 1, !tbaa !9
  %92 = load i64, ptr %9, align 8, !tbaa !5
  %93 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %92)
          to label %94 unwind label %122

94:                                               ; preds = %90
  store i8 %91, ptr %93, align 1, !tbaa !9
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %17) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %17) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #5
  store i32 0, ptr %11, align 4
  br label %95

95:                                               ; preds = %94, %51
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #5
  %96 = load i32, ptr %11, align 4
  switch i32 %96, label %141 [
    i32 0, label %97
    i32 4, label %98
  ]

97:                                               ; preds = %95
  br label %98

98:                                               ; preds = %97, %95
  %99 = load i64, ptr %9, align 8, !tbaa !5
  %100 = add i64 %99, 1
  store i64 %100, ptr %9, align 8, !tbaa !5
  br label %22, !llvm.loop !12

101:                                              ; preds = %58, %56
  %102 = landingpad { ptr, i32 }
          cleanup
  %103 = extractvalue { ptr, i32 } %102, 0
  store ptr %103, ptr %5, align 8
  %104 = extractvalue { ptr, i32 } %102, 1
  store i32 %104, ptr %6, align 4
  br label %128

105:                                              ; preds = %76
  %106 = landingpad { ptr, i32 }
          cleanup
  %107 = extractvalue { ptr, i32 } %106, 0
  store ptr %107, ptr %5, align 8
  %108 = extractvalue { ptr, i32 } %106, 1
  store i32 %108, ptr %6, align 4
  br label %113

109:                                              ; preds = %78
  %110 = landingpad { ptr, i32 }
          cleanup
  %111 = extractvalue { ptr, i32 } %110, 0
  store ptr %111, ptr %5, align 8
  %112 = extractvalue { ptr, i32 } %110, 1
  store i32 %112, ptr %6, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %15) #5
  br label %113

113:                                              ; preds = %109, %105
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %16) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr %15) #5
  br label %127

114:                                              ; preds = %84, %82, %79
  %115 = landingpad { ptr, i32 }
          cleanup
  %116 = extractvalue { ptr, i32 } %115, 0
  store ptr %116, ptr %5, align 8
  %117 = extractvalue { ptr, i32 } %115, 1
  store i32 %117, ptr %6, align 4
  br label %127

118:                                              ; preds = %87
  %119 = landingpad { ptr, i32 }
          cleanup
  %120 = extractvalue { ptr, i32 } %119, 0
  store ptr %120, ptr %5, align 8
  %121 = extractvalue { ptr, i32 } %119, 1
  store i32 %121, ptr %6, align 4
  br label %126

122:                                              ; preds = %90, %88
  %123 = landingpad { ptr, i32 }
          cleanup
  %124 = extractvalue { ptr, i32 } %123, 0
  store ptr %124, ptr %5, align 8
  %125 = extractvalue { ptr, i32 } %123, 1
  store i32 %125, ptr %6, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %17) #5
  br label %126

126:                                              ; preds = %122, %118
  call void @llvm.lifetime.end.p0(i64 32, ptr %17) #5
  br label %127

127:                                              ; preds = %126, %114, %113
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #5
  br label %128

128:                                              ; preds = %127, %101
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #5
  br label %129

129:                                              ; preds = %128, %52
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  call void @_ZNSt13random_deviceD2Ev(ptr noundef nonnull align 8 dereferenceable(5000) %8) #5
  br label %132

130:                                              ; preds = %26
  store i1 true, ptr %3, align 1
  store i32 1, ptr %11, align 4
  call void @_ZNSt13random_deviceD2Ev(ptr noundef nonnull align 8 dereferenceable(5000) %8) #5
  call void @llvm.lifetime.end.p0(i64 5000, ptr %8) #5
  call void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128) %7) #5
  call void @llvm.lifetime.end.p0(i64 392, ptr %7) #5
  %131 = load i1, ptr %3, align 1
  br i1 %131, label %135, label %134

132:                                              ; preds = %129, %35
  call void @llvm.lifetime.end.p0(i64 5000, ptr %8) #5
  call void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128) %7) #5
  br label %133

133:                                              ; preds = %132, %31
  call void @llvm.lifetime.end.p0(i64 392, ptr %7) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  br label %136

134:                                              ; preds = %130
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  br label %135

135:                                              ; preds = %134, %130
  ret void

136:                                              ; preds = %133, %27
  %137 = load ptr, ptr %5, align 8
  %138 = load i32, ptr %6, align 4
  %139 = insertvalue { ptr, i32 } poison, ptr %137, 0
  %140 = insertvalue { ptr, i32 } %139, i32 %138, 1
  resume { ptr, i32 } %140

141:                                              ; preds = %95
  unreachable
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1Ev(ptr noundef nonnull align 8 dereferenceable(128)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt13random_deviceC2Ev(ptr noundef nonnull align 8 dereferenceable(5000)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZNSt13random_deviceclEv(ptr noundef nonnull align 8 dereferenceable(5000)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNSt13random_device3maxEv() #2 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEE3strERKNS_12basic_stringIcS2_S3_EE(ptr noundef nonnull align 8 dereferenceable(128), ptr noundef nonnull align 8 dereferenceable(32)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSt8ios_baseS0_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(216) ptr @_ZSt3hexRSt8ios_base(ptr noundef nonnull align 8 dereferenceable(216)) #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(216) ptr @_ZSt9uppercaseRSt8ios_base(ptr noundef nonnull align 8 dereferenceable(216)) #3

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #4

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEE3strEv(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(128)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13random_deviceD2Ev(ptr noundef nonnull align 8 dereferenceable(5000)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator" = type { i8 }
%"class.std::__cxx11::basic_stringstream" = type { %"class.std::basic_iostream.base", %"class.std::__cxx11::basic_stringbuf", %"class.std::basic_ios" }
%"class.std::basic_iostream.base" = type { %"class.std::basic_istream.base", %"class.std::basic_ostream.base" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::basic_ostream.base" = type { ptr }
%"class.std::__cxx11::basic_stringbuf" = type { %"class.std::basic_streambuf", i32, %"class.std::__cxx11::basic_string" }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%"class.std::locale" = type { ptr }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::random_device" = type { %union.anon.0 }
%union.anon.0 = type { %"class.std::mersenne_twister_engine" }
%"class.std::mersenne_twister_engine" = type { [624 x i64], i64 }

@.str = external hidden unnamed_addr constant [37 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4chen3sys4uuidB5cxx11Ev(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8 %0) local_unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::allocator", align 1
  %3 = alloca %"class.std::__cxx11::basic_stringstream", align 8
  %4 = alloca %"class.std::random_device", align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::allocator", align 1
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %2) #5
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull @.str, ptr noundef nonnull align 1 dereferenceable(1) %2)
          to label %8 unwind label %13

8:                                                ; preds = %1
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #5
  call void @llvm.lifetime.start.p0(i64 392, ptr nonnull %3) #5
  invoke void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1Ev(ptr noundef nonnull align 8 dereferenceable(128) %3)
          to label %9 unwind label %15

9:                                                ; preds = %8
  call void @llvm.lifetime.start.p0(i64 5000, ptr nonnull %4) #5
  invoke void @_ZNSt13random_deviceC2Ev(ptr noundef nonnull align 8 dereferenceable(5000) %4)
          to label %10 unwind label %17

10:                                               ; preds = %9
  %11 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  %.not = icmp eq i64 %11, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %10
  %12 = getelementptr inbounds i8, ptr %3, i64 16
  br label %19

._crit_edge:                                      ; preds = %48, %10
  call void @_ZNSt13random_deviceD2Ev(ptr noundef nonnull align 8 dereferenceable(5000) %4) #5
  call void @llvm.lifetime.end.p0(i64 5000, ptr nonnull %4) #5
  call void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128) %3) #5
  call void @llvm.lifetime.end.p0(i64 392, ptr nonnull %3) #5
  ret void

13:                                               ; preds = %1
  %14 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #5
  br label %64

15:                                               ; preds = %8
  %16 = landingpad { ptr, i32 }
          cleanup
  br label %63

17:                                               ; preds = %9
  %18 = landingpad { ptr, i32 }
          cleanup
  br label %62

19:                                               ; preds = %.lr.ph, %48
  %.02129 = phi i64 [ 0, %.lr.ph ], [ %49, %48 ]
  %20 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %.02129)
  %21 = load i8, ptr %20, align 1, !tbaa !5
  %22 = add i8 %21, -122
  %or.cond = icmp ult i8 %22, -2
  br i1 %or.cond, label %48, label %23

23:                                               ; preds = %19
  %24 = invoke noundef i32 @_ZNSt13random_deviceclEv(ptr noundef nonnull align 8 dereferenceable(5000) %4)
          to label %25 unwind label %50

25:                                               ; preds = %23
  %26 = uitofp i32 %24 to float
  %27 = call noundef i32 @_ZNSt13random_device3maxEv()
  %28 = uitofp i32 %27 to float
  %29 = fdiv float %26, %28
  %30 = fmul float %29, 1.600000e+01
  %31 = fptosi float %30 to i32
  %32 = icmp eq i8 %21, 120
  %33 = and i32 %31, 3
  %34 = or disjoint i32 %33, 8
  %35 = select i1 %32, i32 %31, i32 %34
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #5
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull @.str.1, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %36 unwind label %52

36:                                               ; preds = %25
  invoke void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEE3strERKNS_12basic_stringIcS2_S3_EE(ptr noundef nonnull align 8 dereferenceable(128) %3, ptr noundef nonnull align 8 dereferenceable(32) %5)
          to label %37 unwind label %54

37:                                               ; preds = %36
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #5
  %38 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSt8ios_baseS0_E(ptr noundef nonnull align 8 dereferenceable(8) %12, ptr noundef nonnull @_ZSt3hexRSt8ios_base)
          to label %39 unwind label %57

39:                                               ; preds = %37
  %40 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSt8ios_baseS0_E(ptr noundef nonnull align 8 dereferenceable(8) %38, ptr noundef nonnull @_ZSt9uppercaseRSt8ios_base)
          to label %41 unwind label %57

41:                                               ; preds = %39
  %42 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %40, i32 noundef %35)
          to label %43 unwind label %57

43:                                               ; preds = %41
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %7) #5
  invoke void @_ZNKSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEE3strEv(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %7, ptr noundef nonnull align 8 dereferenceable(128) %3)
          to label %44 unwind label %59

44:                                               ; preds = %43
  %45 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %7, i64 noundef 0)
  %46 = load i8, ptr %45, align 1, !tbaa !5
  %47 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %.02129)
  store i8 %46, ptr %47, align 1, !tbaa !5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %7) #5
  br label %48

48:                                               ; preds = %19, %44
  %49 = add nuw i64 %.02129, 1
  %exitcond.not = icmp eq i64 %49, %11
  br i1 %exitcond.not, label %._crit_edge, label %19, !llvm.loop !8

50:                                               ; preds = %23
  %51 = landingpad { ptr, i32 }
          cleanup
  br label %61

52:                                               ; preds = %25
  %53 = landingpad { ptr, i32 }
          cleanup
  br label %56

54:                                               ; preds = %36
  %55 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #5
  br label %56

56:                                               ; preds = %54, %52
  %.pn = phi { ptr, i32 } [ %55, %54 ], [ %53, %52 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #5
  br label %61

57:                                               ; preds = %41, %39, %37
  %58 = landingpad { ptr, i32 }
          cleanup
  br label %61

59:                                               ; preds = %43
  %60 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %7) #5
  br label %61

61:                                               ; preds = %56, %57, %59, %50
  %.pn23.pn = phi { ptr, i32 } [ %51, %50 ], [ %60, %59 ], [ %58, %57 ], [ %.pn, %56 ]
  call void @_ZNSt13random_deviceD2Ev(ptr noundef nonnull align 8 dereferenceable(5000) %4) #5
  br label %62

62:                                               ; preds = %61, %17
  %.pn23.pn.pn = phi { ptr, i32 } [ %.pn23.pn, %61 ], [ %18, %17 ]
  call void @llvm.lifetime.end.p0(i64 5000, ptr nonnull %4) #5
  call void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128) %3) #5
  br label %63

63:                                               ; preds = %62, %15
  %.pn23.pn.pn.pn = phi { ptr, i32 } [ %.pn23.pn.pn, %62 ], [ %16, %15 ]
  call void @llvm.lifetime.end.p0(i64 392, ptr nonnull %3) #5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #5
  br label %64

64:                                               ; preds = %63, %13
  %.pn23.pn.pn.pn.pn = phi { ptr, i32 } [ %.pn23.pn.pn.pn, %63 ], [ %14, %13 ]
  resume { ptr, i32 } %.pn23.pn.pn.pn.pn
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEC1Ev(ptr noundef nonnull align 8 dereferenceable(128)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt13random_deviceC2Ev(ptr noundef nonnull align 8 dereferenceable(5000)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZNSt13random_deviceclEv(ptr noundef nonnull align 8 dereferenceable(5000)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNSt13random_device3maxEv() local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEE3strERKNS_12basic_stringIcS2_S3_EE(ptr noundef nonnull align 8 dereferenceable(128), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSt8ios_baseS0_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(216) ptr @_ZSt3hexRSt8ios_base(ptr noundef nonnull align 8 dereferenceable(216)) #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(216) ptr @_ZSt9uppercaseRSt8ios_base(ptr noundef nonnull align 8 dereferenceable(216)) #3

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEE3strEv(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(128)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13random_deviceD2Ev(ptr noundef nonnull align 8 dereferenceable(5000)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(128)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass