; LLVM IR from Algo-Phantoms/Algo-Tree :: Code/C++ (Huffman_encoding)

; 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::priority_queue" = type <{ %"class.std::vector", [8 x i8] }>
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl" }
%"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl" = type { %"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl_data" = type { ptr, ptr, 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] }
%"class.std::allocator" = type { i8 }
%struct.Node = type { i8, i32, ptr, ptr }

@.str.3 = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5printP4NodeNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef, ptr noundef) #0

declare i32 @__gxx_personality_v0(...)

; 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 uwtable
define dso_local void @_Z15huffmanEncodingNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPii(ptr noundef %0, ptr noundef %1, i32 noundef %2) #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca %"class.std::priority_queue", align 8
  %11 = alloca i32, align 4
  %12 = alloca ptr, align 8
  %13 = alloca ptr, align 8
  %14 = alloca i32, align 4
  %15 = alloca %"class.std::__cxx11::basic_string", align 8
  %16 = alloca %"class.std::allocator", align 1
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.start.p0(i64 32, ptr %10) #6
  call void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(25) %10)
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #6
  store i32 0, ptr %11, align 4, !tbaa !9
  br label %17

17:                                               ; preds = %37, %3
  %18 = load i32, ptr %11, align 4, !tbaa !9
  %19 = load i32, ptr %6, align 4, !tbaa !9
  %20 = icmp slt i32 %18, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  br label %49

22:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #6
  %23 = invoke noalias noundef nonnull ptr @_Znwm(i64 noundef 24) #7
          to label %24 unwind label %40

24:                                               ; preds = %22
  %25 = load i32, ptr %11, align 4, !tbaa !9
  %26 = sext i32 %25 to i64
  %27 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %26)
          to label %28 unwind label %44

28:                                               ; preds = %24
  %29 = load i8, ptr %27, align 1, !tbaa !11
  %30 = load ptr, ptr %5, align 8, !tbaa !5
  %31 = load i32, ptr %11, align 4, !tbaa !9
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds i32, ptr %30, i64 %32
  %34 = load i32, ptr %33, align 4, !tbaa !9
  invoke void @_ZN4NodeC2Eci(ptr noundef nonnull align 8 dereferenceable(24) %23, i8 noundef signext %29, i32 noundef %34)
          to label %35 unwind label %44

35:                                               ; preds = %28
  store ptr %23, ptr %12, align 8, !tbaa !5
  invoke void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(25) %10, ptr noundef nonnull align 8 dereferenceable(8) %12)
          to label %36 unwind label %40

36:                                               ; preds = %35
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  br label %37

37:                                               ; preds = %36
  %38 = load i32, ptr %11, align 4, !tbaa !9
  %39 = add nsw i32 %38, 1
  store i32 %39, ptr %11, align 4, !tbaa !9
  br label %17, !llvm.loop !12

40:                                               ; preds = %35, %22
  %41 = landingpad { ptr, i32 }
          cleanup
  %42 = extractvalue { ptr, i32 } %41, 0
  store ptr %42, ptr %13, align 8
  %43 = extractvalue { ptr, i32 } %41, 1
  store i32 %43, ptr %14, align 4
  br label %48

44:                                               ; preds = %28, %24
  %45 = landingpad { ptr, i32 }
          cleanup
  %46 = extractvalue { ptr, i32 } %45, 0
  store ptr %46, ptr %13, align 8
  %47 = extractvalue { ptr, i32 } %45, 1
  store i32 %47, ptr %14, align 4
  call void @_ZdlPvm(ptr noundef %23, i64 noundef 24) #8
  br label %48

48:                                               ; preds = %44, %40
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #6
  br label %103

49:                                               ; preds = %21
  br label %50

50:                                               ; preds = %79, %49
  %51 = invoke noundef i64 @_ZNKSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25) %10)
          to label %52 unwind label %80

52:                                               ; preds = %50
  %53 = icmp ne i64 %51, 1
  br i1 %53, label %54, label %88

54:                                               ; preds = %52
  %55 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE3topEv(ptr noundef nonnull align 8 dereferenceable(25) %10)
          to label %56 unwind label %80

56:                                               ; preds = %54
  %57 = load ptr, ptr %55, align 8, !tbaa !5
  store ptr %57, ptr %7, align 8, !tbaa !5
  invoke void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE3popEv(ptr noundef nonnull align 8 dereferenceable(25) %10)
          to label %58 unwind label %80

58:                                               ; preds = %56
  %59 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE3topEv(ptr noundef nonnull align 8 dereferenceable(25) %10)
          to label %60 unwind label %80

60:                                               ; preds = %58
  %61 = load ptr, ptr %59, align 8, !tbaa !5
  store ptr %61, ptr %8, align 8, !tbaa !5
  invoke void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE3popEv(ptr noundef nonnull align 8 dereferenceable(25) %10)
          to label %62 unwind label %80

62:                                               ; preds = %60
  %63 = invoke noalias noundef nonnull ptr @_Znwm(i64 noundef 24) #7
          to label %64 unwind label %80

64:                                               ; preds = %62
  %65 = load ptr, ptr %7, align 8, !tbaa !5
  %66 = getelementptr inbounds %struct.Node, ptr %65, i32 0, i32 1
  %67 = load i32, ptr %66, align 4, !tbaa !14
  %68 = load ptr, ptr %8, align 8, !tbaa !5
  %69 = getelementptr inbounds %struct.Node, ptr %68, i32 0, i32 1
  %70 = load i32, ptr %69, align 4, !tbaa !14
  %71 = add nsw i32 %67, %70
  invoke void @_ZN4NodeC2Eci(ptr noundef nonnull align 8 dereferenceable(24) %63, i8 noundef signext 37, i32 noundef %71)
          to label %72 unwind label %84

72:                                               ; preds = %64
  store ptr %63, ptr %9, align 8, !tbaa !5
  %73 = load ptr, ptr %7, align 8, !tbaa !5
  %74 = load ptr, ptr %9, align 8, !tbaa !5
  %75 = getelementptr inbounds %struct.Node, ptr %74, i32 0, i32 2
  store ptr %73, ptr %75, align 8, !tbaa !16
  %76 = load ptr, ptr %8, align 8, !tbaa !5
  %77 = load ptr, ptr %9, align 8, !tbaa !5
  %78 = getelementptr inbounds %struct.Node, ptr %77, i32 0, i32 3
  store ptr %76, ptr %78, align 8, !tbaa !17
  invoke void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(25) %10, ptr noundef nonnull align 8 dereferenceable(8) %9)
          to label %79 unwind label %80

79:                                               ; preds = %72
  br label %50, !llvm.loop !18

80:                                               ; preds = %88, %72, %62, %60, %58, %56, %54, %50
  %81 = landingpad { ptr, i32 }
          cleanup
  %82 = extractvalue { ptr, i32 } %81, 0
  store ptr %82, ptr %13, align 8
  %83 = extractvalue { ptr, i32 } %81, 1
  store i32 %83, ptr %14, align 4
  br label %103

84:                                               ; preds = %64
  %85 = landingpad { ptr, i32 }
          cleanup
  %86 = extractvalue { ptr, i32 } %85, 0
  store ptr %86, ptr %13, align 8
  %87 = extractvalue { ptr, i32 } %85, 1
  store i32 %87, ptr %14, align 4
  call void @_ZdlPvm(ptr noundef %63, i64 noundef 24) #8
  br label %103

88:                                               ; preds = %52
  %89 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE3topEv(ptr noundef nonnull align 8 dereferenceable(25) %10)
          to label %90 unwind label %80

90:                                               ; preds = %88
  %91 = load ptr, ptr %89, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %16) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %15, ptr noundef @.str.3, ptr noundef nonnull align 1 dereferenceable(1) %16)
          to label %92 unwind label %94

92:                                               ; preds = %90
  invoke void @_Z5printP4NodeNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %91, ptr noundef %15)
          to label %93 unwind label %98

93:                                               ; preds = %92
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %15) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %16) #6
  call void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %10) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  ret void

94:                                               ; preds = %90
  %95 = landingpad { ptr, i32 }
          cleanup
  %96 = extractvalue { ptr, i32 } %95, 0
  store ptr %96, ptr %13, align 8
  %97 = extractvalue { ptr, i32 } %95, 1
  store i32 %97, ptr %14, align 4
  br label %102

98:                                               ; preds = %92
  %99 = landingpad { ptr, i32 }
          cleanup
  %100 = extractvalue { ptr, i32 } %99, 0
  store ptr %100, ptr %13, align 8
  %101 = extractvalue { ptr, i32 } %99, 1
  store i32 %101, ptr %14, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %15) #6
  br label %102

102:                                              ; preds = %98, %94
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %16) #6
  br label %103

103:                                              ; preds = %102, %84, %80, %48
  call void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %10) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  br label %104

104:                                              ; preds = %103
  %105 = load ptr, ptr %13, align 8
  %106 = load i32, ptr %14, align 4
  %107 = insertvalue { ptr, i32 } poison, ptr %105, 0
  %108 = insertvalue { ptr, i32 } %107, i32 %106, 1
  resume { ptr, i32 } %108
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(25)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(25), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #3

; 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) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4NodeC2Eci(ptr noundef nonnull align 8 dereferenceable(24), i8 noundef signext, i32 noundef) unnamed_addr #1 align 2

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE3topEv(ptr noundef nonnull align 8 dereferenceable(25)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE3popEv(ptr noundef nonnull align 8 dereferenceable(25)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(25), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareED2Ev(ptr noundef nonnull align 8 dereferenceable(25)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 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 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nobuiltin allocsize(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 = { nobuiltin nounwind "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 = { inlinehint 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 #6 = { nounwind }
attributes #7 = { builtin allocsize(0) }
attributes #8 = { builtin 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 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = !{!15, !10, i64 4}
!15 = !{!"_ZTS4Node", !7, i64 0, !10, i64 4, !6, i64 8, !6, i64 16}
!16 = !{!15, !6, i64 8}
!17 = !{!15, !6, i64 16}
!18 = distinct !{!18, !13}


; 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::priority_queue" = type <{ %"class.std::vector", [8 x i8] }>
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl" }
%"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl" = type { %"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Node *, std::allocator<Node *>>::_Vector_impl_data" = type { ptr, ptr, 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] }
%"class.std::allocator" = type { i8 }

@.str.3 = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z5printP4NodeNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef, ptr noundef) local_unnamed_addr #0

declare i32 @__gxx_personality_v0(...)

; 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 uwtable
define dso_local void @_Z15huffmanEncodingNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPii(ptr noundef %0, ptr nocapture noundef readonly %1, i32 noundef %2) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca %"class.std::priority_queue", align 8
  %6 = alloca ptr, align 8
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca %"class.std::allocator", align 1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #5
  call void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
  %9 = icmp sgt i32 %2, 0
  br i1 %9, label %.lr.ph.preheader, label %.preheader.preheader

.preheader.preheader:                             ; preds = %16, %3
  br label %.preheader

.lr.ph.preheader:                                 ; preds = %3
  %wide.trip.count = zext nneg i32 %2 to i64
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %16
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %16 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #5
  %10 = invoke noalias noundef nonnull dereferenceable(24) ptr @_Znwm(i64 noundef 24) #6
          to label %11 unwind label %17

11:                                               ; preds = %.lr.ph
  %12 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %0, i64 noundef %indvars.iv)
  %13 = load i8, ptr %12, align 1, !tbaa !5
  %14 = getelementptr inbounds i32, ptr %1, i64 %indvars.iv
  %15 = load i32, ptr %14, align 4, !tbaa !8
  call void @_ZN4NodeC2Eci(ptr noundef nonnull align 8 dereferenceable(24) %10, i8 noundef signext %13, i32 noundef %15)
  store ptr %10, ptr %6, align 8, !tbaa !10
  invoke void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(25) %5, ptr noundef nonnull align 8 dereferenceable(8) %6)
          to label %16 unwind label %17

16:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %.preheader.preheader, label %.lr.ph, !llvm.loop !12

17:                                               ; preds = %11, %.lr.ph
  %18 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  br label %46

.preheader:                                       ; preds = %.preheader.preheader, %28
  %19 = call noundef i64 @_ZNKSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
  %.not = icmp eq i64 %19, 1
  %20 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE3topEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
  %21 = load ptr, ptr %20, align 8, !tbaa !10
  br i1 %.not, label %38, label %22

22:                                               ; preds = %.preheader
  invoke void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE3popEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
          to label %23 unwind label %36

23:                                               ; preds = %22
  %24 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE3topEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
  %25 = load ptr, ptr %24, align 8, !tbaa !10
  invoke void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE3popEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
          to label %26 unwind label %36

26:                                               ; preds = %23
  %27 = invoke noalias noundef nonnull dereferenceable(24) ptr @_Znwm(i64 noundef 24) #6
          to label %28 unwind label %36

28:                                               ; preds = %26
  %29 = getelementptr inbounds i8, ptr %21, i64 4
  %30 = load i32, ptr %29, align 4, !tbaa !14
  %31 = getelementptr inbounds i8, ptr %25, i64 4
  %32 = load i32, ptr %31, align 4, !tbaa !14
  %33 = add nsw i32 %32, %30
  call void @_ZN4NodeC2Eci(ptr noundef nonnull align 8 dereferenceable(24) %27, i8 noundef signext 37, i32 noundef %33)
  store ptr %27, ptr %4, align 8, !tbaa !10
  %34 = getelementptr inbounds i8, ptr %27, i64 8
  store ptr %21, ptr %34, align 8, !tbaa !16
  %35 = getelementptr inbounds i8, ptr %27, i64 16
  store ptr %25, ptr %35, align 8, !tbaa !17
  invoke void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(25) %5, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %.preheader unwind label %36, !llvm.loop !18

36:                                               ; preds = %28, %26, %23, %22
  %37 = landingpad { ptr, i32 }
          cleanup
  br label %46

38:                                               ; preds = %.preheader
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %8) #5
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %7, ptr noundef nonnull @.str.3, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %39 unwind label %41

39:                                               ; preds = %38
  invoke void @_Z5printP4NodeNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr noundef %21, ptr noundef nonnull %7)
          to label %40 unwind label %43

40:                                               ; preds = %39
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #5
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %8) #5
  call void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  ret void

41:                                               ; preds = %38
  %42 = landingpad { ptr, i32 }
          cleanup
  br label %45

43:                                               ; preds = %39
  %44 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #5
  br label %45

45:                                               ; preds = %43, %41
  %.pn = phi { ptr, i32 } [ %44, %43 ], [ %42, %41 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %8) #5
  br label %46

46:                                               ; preds = %45, %36, %17
  %.pn15 = phi { ptr, i32 } [ %18, %17 ], [ %37, %36 ], [ %.pn, %45 ]
  call void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %5) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  resume { ptr, i32 } %.pn15
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareEC2IS4_vEEv(ptr noundef nonnull align 8 dereferenceable(25)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE4pushEOS1_(ptr noundef nonnull align 8 dereferenceable(25), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #3

; 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 #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4NodeC2Eci(ptr noundef nonnull align 8 dereferenceable(24), i8 noundef signext, i32 noundef) 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) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE3topEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE3popEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareE4pushERKS1_(ptr noundef nonnull align 8 dereferenceable(25), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt14priority_queueIP4NodeSt6vectorIS1_SaIS1_EE7compareED2Ev(ptr noundef nonnull align 8 dereferenceable(25)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 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 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nobuiltin allocsize(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 = { inlinehint 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 #5 = { nounwind }
attributes #6 = { builtin allocsize(0) }

!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 = !{!9, !9, i64 0}
!9 = !{!"int", !6, i64 0}
!10 = !{!11, !11, i64 0}
!11 = !{!"any pointer", !6, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = !{!15, !9, i64 4}
!15 = !{!"_ZTS4Node", !6, i64 0, !9, i64 4, !11, i64 8, !11, i64 16}
!16 = !{!15, !11, i64 8}
!17 = !{!15, !11, i64 16}
!18 = distinct !{!18, !13}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass