; LLVM IR from ravireddy07/cpp-book :: src/Coding-Blocks (WordBreak)

; 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::unordered_map" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"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::locale" = type { ptr }
%"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] }
%"struct.std::__detail::_Node_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }

@_Z2mpB5cxx11 = external dso_local global %"class.std::unordered_map", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z9wordBreakNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_(ptr noundef %0, ptr noundef %1) #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca i1, align 1
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %13 = alloca %"class.std::__cxx11::basic_string", align 8
  %14 = alloca i1, align 1
  %15 = alloca %"class.std::__cxx11::basic_string", align 8
  %16 = alloca %"class.std::__cxx11::basic_string", align 8
  %17 = alloca i1, align 1
  %18 = alloca i1, align 1
  %19 = alloca i1, align 1
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %20 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %21 = icmp eq i64 %20, 0
  br i1 %21, label %22, label %25

22:                                               ; preds = %2
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %1)
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %23, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  store i1 true, ptr %3, align 1
  br label %112

25:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 1, ptr %6, align 4, !tbaa !9
  br label %26

26:                                               ; preds = %106, %25
  %27 = load i32, ptr %6, align 4, !tbaa !9
  %28 = sext i32 %27 to i64
  %29 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %30 = icmp ule i64 %28, %29
  br i1 %30, label %32, label %31

31:                                               ; preds = %26
  store i32 2, ptr %7, align 4
  br label %109

32:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 32, ptr %8) #4
  %33 = load i32, ptr %6, align 4, !tbaa !9
  %34 = sext i32 %33 to i64
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %8, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef 0, i64 noundef %34)
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  store i1 false, ptr %14, align 1
  store i1 false, ptr %17, align 1
  store i1 false, ptr %18, align 1
  store i1 false, ptr %19, align 1
  %35 = invoke ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbSt4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_bEEE4findERSB_(ptr noundef nonnull align 8 dereferenceable(56) @_Z2mpB5cxx11, ptr noundef nonnull align 8 dereferenceable(32) %8)
          to label %36 unwind label %66

36:                                               ; preds = %32
  %37 = getelementptr inbounds %"struct.std::__detail::_Node_iterator", ptr %9, i32 0, i32 0
  %38 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %37, i32 0, i32 0
  store ptr %35, ptr %38, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #4
  %39 = call ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbSt4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_bEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) @_Z2mpB5cxx11) #4
  %40 = getelementptr inbounds %"struct.std::__detail::_Node_iterator", ptr %12, i32 0, i32 0
  %41 = getelementptr inbounds %"struct.std::__detail::_Node_iterator_base", ptr %40, i32 0, i32 0
  store ptr %39, ptr %41, align 8
  %42 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbELb1EEESC_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %12) #4
  br i1 %42, label %43, label %51

43:                                               ; preds = %36
  %44 = load i32, ptr %6, align 4, !tbaa !9
  %45 = sext i32 %44 to i64
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %13, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %45, i64 noundef -1)
          to label %46 unwind label %70

46:                                               ; preds = %43
  store i1 true, ptr %14, align 1
  call void @llvm.lifetime.start.p0(i64 32, ptr %16) #4
  store i1 true, ptr %17, align 1
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_SA_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %16, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %8)
          to label %47 unwind label %74

47:                                               ; preds = %46
  store i1 true, ptr %18, align 1
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_PKS5_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %15, ptr noundef nonnull align 8 dereferenceable(32) %16, ptr noundef @.str)
          to label %48 unwind label %78

48:                                               ; preds = %47
  store i1 true, ptr %19, align 1
  %49 = invoke noundef zeroext i1 @_Z9wordBreakNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_(ptr noundef %13, ptr noundef %15)
          to label %50 unwind label %82

50:                                               ; preds = %48
  br label %51

51:                                               ; preds = %50, %36
  %52 = phi i1 [ false, %36 ], [ %49, %50 ]
  %53 = load i1, ptr %19, align 1
  br i1 %53, label %54, label %55

54:                                               ; preds = %51
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %15) #4
  br label %55

55:                                               ; preds = %54, %51
  %56 = load i1, ptr %18, align 1
  br i1 %56, label %57, label %58

57:                                               ; preds = %55
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %16) #4
  br label %58

58:                                               ; preds = %57, %55
  %59 = load i1, ptr %17, align 1
  br i1 %59, label %60, label %61

60:                                               ; preds = %58
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #4
  br label %61

61:                                               ; preds = %60, %58
  %62 = load i1, ptr %14, align 1
  br i1 %62, label %63, label %64

63:                                               ; preds = %61
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #4
  br label %64

64:                                               ; preds = %63, %61
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  br i1 %52, label %65, label %102

65:                                               ; preds = %64
  store i1 true, ptr %3, align 1
  store i32 1, ptr %7, align 4
  br label %103

66:                                               ; preds = %32
  %67 = landingpad { ptr, i32 }
          cleanup
  %68 = extractvalue { ptr, i32 } %67, 0
  store ptr %68, ptr %10, align 8
  %69 = extractvalue { ptr, i32 } %67, 1
  store i32 %69, ptr %11, align 4
  br label %101

70:                                               ; preds = %43
  %71 = landingpad { ptr, i32 }
          cleanup
  %72 = extractvalue { ptr, i32 } %71, 0
  store ptr %72, ptr %10, align 8
  %73 = extractvalue { ptr, i32 } %71, 1
  store i32 %73, ptr %11, align 4
  br label %100

74:                                               ; preds = %46
  %75 = landingpad { ptr, i32 }
          cleanup
  %76 = extractvalue { ptr, i32 } %75, 0
  store ptr %76, ptr %10, align 8
  %77 = extractvalue { ptr, i32 } %75, 1
  store i32 %77, ptr %11, align 4
  br label %93

78:                                               ; preds = %47
  %79 = landingpad { ptr, i32 }
          cleanup
  %80 = extractvalue { ptr, i32 } %79, 0
  store ptr %80, ptr %10, align 8
  %81 = extractvalue { ptr, i32 } %79, 1
  store i32 %81, ptr %11, align 4
  br label %89

82:                                               ; preds = %48
  %83 = landingpad { ptr, i32 }
          cleanup
  %84 = extractvalue { ptr, i32 } %83, 0
  store ptr %84, ptr %10, align 8
  %85 = extractvalue { ptr, i32 } %83, 1
  store i32 %85, ptr %11, align 4
  %86 = load i1, ptr %19, align 1
  br i1 %86, label %87, label %88

87:                                               ; preds = %82
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %15) #4
  br label %88

88:                                               ; preds = %87, %82
  br label %89

89:                                               ; preds = %88, %78
  %90 = load i1, ptr %18, align 1
  br i1 %90, label %91, label %92

91:                                               ; preds = %89
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %16) #4
  br label %92

92:                                               ; preds = %91, %89
  br label %93

93:                                               ; preds = %92, %74
  %94 = load i1, ptr %17, align 1
  br i1 %94, label %95, label %96

95:                                               ; preds = %93
  call void @llvm.lifetime.end.p0(i64 32, ptr %16) #4
  br label %96

96:                                               ; preds = %95, %93
  %97 = load i1, ptr %14, align 1
  br i1 %97, label %98, label %99

98:                                               ; preds = %96
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %13) #4
  br label %99

99:                                               ; preds = %98, %96
  br label %100

100:                                              ; preds = %99, %70
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #4
  br label %101

101:                                              ; preds = %100, %66
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  br label %114

102:                                              ; preds = %64
  store i32 0, ptr %7, align 4
  br label %103

103:                                              ; preds = %102, %65
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #4
  %104 = load i32, ptr %7, align 4
  switch i32 %104, label %109 [
    i32 0, label %105
  ]

105:                                              ; preds = %103
  br label %106

106:                                              ; preds = %105
  %107 = load i32, ptr %6, align 4, !tbaa !9
  %108 = add nsw i32 %107, 1
  store i32 %108, ptr %6, align 4, !tbaa !9
  br label %26, !llvm.loop !11

109:                                              ; preds = %103, %31
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %110 = load i32, ptr %7, align 4
  switch i32 %110, label %119 [
    i32 2, label %111
    i32 1, label %112
  ]

111:                                              ; preds = %109
  store i1 false, ptr %3, align 1
  br label %112

112:                                              ; preds = %111, %109, %22
  %113 = load i1, ptr %3, align 1
  ret i1 %113

114:                                              ; preds = %101
  %115 = load ptr, ptr %10, align 8
  %116 = load i32, ptr %11, align 4
  %117 = insertvalue { ptr, i32 } poison, ptr %115, 0
  %118 = insertvalue { ptr, i32 } %117, i32 %116, 1
  resume { ptr, i32 } %118

119:                                              ; preds = %109
  unreachable
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) #2

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbELb1EEESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbSt4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_bEEE4findERSB_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 8 dereferenceable(32)) #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbSt4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_bEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_PKS5_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_SA_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #0

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

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 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 #2 = { 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 #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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::unordered_map" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"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::locale" = type { ptr }
%"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] }
%"struct.std::__detail::_Node_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }

@_Z2mpB5cxx11 = external dso_local global %"class.std::unordered_map", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z9wordBreakNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_(ptr noundef nonnull %0, ptr noundef %1) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %5 = alloca %"struct.std::__detail::_Node_iterator", align 8
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca %"class.std::__cxx11::basic_string", align 8
  %9 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %10 = icmp eq i64 %9, 0
  br i1 %10, label %12, label %.preheader

.preheader:                                       ; preds = %2
  %11 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %.not38.not = icmp eq i64 %11, 0
  br i1 %.not38.not, label %.loopexit, label %.lr.ph

12:                                               ; preds = %2
  %13 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %1)
  %14 = tail call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  br label %.loopexit

.lr.ph:                                           ; preds = %.preheader, %38
  %indvars.iv = phi i64 [ %indvars.iv.next, %38 ], [ 1, %.preheader ]
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #4
  call void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %3, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef 0, i64 noundef %indvars.iv)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %15 = invoke ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbSt4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_bEEE4findERSB_(ptr noundef nonnull align 8 dereferenceable(56) @_Z2mpB5cxx11, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %16 unwind label %24

16:                                               ; preds = %.lr.ph
  store ptr %15, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %17 = call ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbSt4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_bEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56) @_Z2mpB5cxx11) #4
  store ptr %17, ptr %5, align 8
  %18 = call noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbELb1EEESC_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  br i1 %18, label %19, label %.critedge37.thread

.critedge37.thread:                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #4
  br label %38

19:                                               ; preds = %16
  invoke void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %6, ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv, i64 noundef -1)
          to label %20 unwind label %26

20:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %8) #4
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_SA_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %8, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %21 unwind label %28

21:                                               ; preds = %20
  invoke void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_PKS5_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %7, ptr noundef nonnull align 8 dereferenceable(32) %8, ptr noundef nonnull @.str)
          to label %22 unwind label %30

22:                                               ; preds = %21
  %23 = invoke noundef zeroext i1 @_Z9wordBreakNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES4_(ptr noundef nonnull %6, ptr noundef nonnull %7)
          to label %.critedge37 unwind label %32

.critedge37:                                      ; preds = %22
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #4
  br i1 %23, label %.loopexit, label %38

24:                                               ; preds = %.lr.ph
  %25 = landingpad { ptr, i32 }
          cleanup
  br label %37

26:                                               ; preds = %19
  %27 = landingpad { ptr, i32 }
          cleanup
  br label %36

28:                                               ; preds = %20
  %29 = landingpad { ptr, i32 }
          cleanup
  br label %35

30:                                               ; preds = %21
  %31 = landingpad { ptr, i32 }
          cleanup
  br label %34

32:                                               ; preds = %22
  %33 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #4
  br label %34

34:                                               ; preds = %30, %32
  %.pn = phi { ptr, i32 } [ %33, %32 ], [ %31, %30 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #4
  br label %35

35:                                               ; preds = %28, %34
  %.pn.pn = phi { ptr, i32 } [ %.pn, %34 ], [ %29, %28 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %8) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  br label %36

36:                                               ; preds = %35, %26
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %35 ], [ %27, %26 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  br label %37

37:                                               ; preds = %36, %24
  %.pn.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn.pn, %36 ], [ %25, %24 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #4
  resume { ptr, i32 } %.pn.pn.pn.pn

38:                                               ; preds = %.critedge37.thread, %.critedge37
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %39 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %0) #4
  %.not.not.not = icmp ugt i64 %39, %indvars.iv
  br i1 %.not.not.not, label %.lr.ph, label %.loopexit, !llvm.loop !5

.loopexit:                                        ; preds = %38, %.critedge37, %.preheader, %12
  %.330 = phi i1 [ true, %12 ], [ false, %.preheader ], [ false, %38 ], [ true, %.critedge37 ]
  ret i1 %.330
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2

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

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress uwtable
declare void @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6substrEmm(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), i64 noundef, i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNSt8__detailneERKNS_19_Node_iterator_baseISt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbELb1EEESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbSt4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_bEEE4findERSB_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt13unordered_mapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbSt4hashIS5_ESt8equal_toIS5_ESaISt4pairIKS5_bEEE3endEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EEOS8_PKS5_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_SA_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

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 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 #2 = { 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 #3 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: ConstraintEliminationPass,CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass