; LLVM IR from HarshCasper/NeoAlgo :: C-Plus-Plus/heap/Merge_k_sorted_arrays.ll (Z5mergeSt6vectorIS_IiSaIiEESaIS1_EEi)

; 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::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::priority_queue" = type <{ %"class.std::vector.0", [8 x i8] }>
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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.Node = type { i32, i32, i32 }
%"class.std::vector.5" = type { %"struct.std::_Vector_base.6" }
%"struct.std::_Vector_base.6" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@_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 void @_Z5mergeSt6vectorIS_IiSaIiEESaIS1_EEi(ptr noundef %0, i32 noundef %1) #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::priority_queue", align 8
  %6 = alloca i32, align 4
  %7 = alloca %class.Node, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca %"class.std::vector.5", align 8
  %11 = alloca %class.Node, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca %class.Node, align 4
  %15 = alloca ptr, align 8
  %16 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %17 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %18 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 32, ptr %5) #7
  call void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareEC2IS3_vEEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %19

19:                                               ; preds = %33, %2
  %20 = load i32, ptr %6, align 4, !tbaa !9
  %21 = load i32, ptr %4, align 4, !tbaa !9
  %22 = icmp slt i32 %20, %21
  br i1 %22, label %24, label %23

23:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %40

24:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 12, ptr %7) #7
  %25 = load i32, ptr %6, align 4, !tbaa !9
  %26 = sext i32 %25 to i64
  %27 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %26) #7
  %28 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %27, i64 noundef 0) #7
  %29 = load i32, ptr %28, align 4, !tbaa !9
  %30 = load i32, ptr %6, align 4, !tbaa !9
  invoke void @_ZN4NodeC2Eiii(ptr noundef nonnull align 4 dereferenceable(12) %7, i32 noundef %29, i32 noundef %30, i32 noundef 0)
          to label %31 unwind label %36

31:                                               ; preds = %24
  invoke void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE4pushERKS0_(ptr noundef nonnull align 8 dereferenceable(25) %5, ptr noundef nonnull align 4 dereferenceable(12) %7)
          to label %32 unwind label %36

32:                                               ; preds = %31
  call void @llvm.lifetime.end.p0(i64 12, ptr %7) #7
  br label %33

33:                                               ; preds = %32
  %34 = load i32, ptr %6, align 4, !tbaa !9
  %35 = add nsw i32 %34, 1
  store i32 %35, ptr %6, align 4, !tbaa !9
  br label %19, !llvm.loop !11

36:                                               ; preds = %31, %24
  %37 = landingpad { ptr, i32 }
          cleanup
  %38 = extractvalue { ptr, i32 } %37, 0
  store ptr %38, ptr %8, align 8
  %39 = extractvalue { ptr, i32 } %37, 1
  store i32 %39, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 12, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  br label %117

40:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 24, ptr %10) #7
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %10) #7
  br label %41

41:                                               ; preds = %89, %40
  %42 = invoke noundef i64 @_ZNKSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
          to label %43 unwind label %77

43:                                               ; preds = %41
  %44 = icmp ne i64 %42, 0
  br i1 %44, label %45, label %91

45:                                               ; preds = %43
  call void @llvm.lifetime.start.p0(i64 12, ptr %11) #7
  %46 = invoke noundef nonnull align 4 dereferenceable(12) ptr @_ZNKSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE3topEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
          to label %47 unwind label %81

47:                                               ; preds = %45
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %11, ptr align 4 %46, i64 12, i1 false), !tbaa.struct !13
  invoke void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE3popEv(ptr noundef nonnull align 8 dereferenceable(25) %5)
          to label %48 unwind label %81

48:                                               ; preds = %47
  %49 = getelementptr inbounds %class.Node, ptr %11, i32 0, i32 0
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %10, ptr noundef nonnull align 4 dereferenceable(4) %49)
          to label %50 unwind label %81

50:                                               ; preds = %48
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #7
  %51 = getelementptr inbounds %class.Node, ptr %11, i32 0, i32 1
  %52 = load i32, ptr %51, align 4, !tbaa !14
  store i32 %52, ptr %12, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #7
  %53 = getelementptr inbounds %class.Node, ptr %11, i32 0, i32 2
  %54 = load i32, ptr %53, align 4, !tbaa !16
  store i32 %54, ptr %13, align 4, !tbaa !9
  %55 = load i32, ptr %13, align 4, !tbaa !9
  %56 = add nsw i32 %55, 1
  %57 = sext i32 %56 to i64
  %58 = load i32, ptr %12, align 4, !tbaa !9
  %59 = sext i32 %58 to i64
  %60 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %59) #7
  %61 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %60) #7
  %62 = icmp ult i64 %57, %61
  br i1 %62, label %63, label %89

63:                                               ; preds = %50
  call void @llvm.lifetime.start.p0(i64 12, ptr %14) #7
  %64 = load i32, ptr %12, align 4, !tbaa !9
  %65 = sext i32 %64 to i64
  %66 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %65) #7
  %67 = load i32, ptr %13, align 4, !tbaa !9
  %68 = add nsw i32 %67, 1
  %69 = sext i32 %68 to i64
  %70 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %66, i64 noundef %69) #7
  %71 = load i32, ptr %70, align 4, !tbaa !9
  %72 = load i32, ptr %12, align 4, !tbaa !9
  %73 = load i32, ptr %13, align 4, !tbaa !9
  %74 = add nsw i32 %73, 1
  invoke void @_ZN4NodeC2Eiii(ptr noundef nonnull align 4 dereferenceable(12) %14, i32 noundef %71, i32 noundef %72, i32 noundef %74)
          to label %75 unwind label %85

75:                                               ; preds = %63
  invoke void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE4pushERKS0_(ptr noundef nonnull align 8 dereferenceable(25) %5, ptr noundef nonnull align 4 dereferenceable(12) %14)
          to label %76 unwind label %85

76:                                               ; preds = %75
  call void @llvm.lifetime.end.p0(i64 12, ptr %14) #7
  br label %89

77:                                               ; preds = %41
  %78 = landingpad { ptr, i32 }
          cleanup
  %79 = extractvalue { ptr, i32 } %78, 0
  store ptr %79, ptr %8, align 8
  %80 = extractvalue { ptr, i32 } %78, 1
  store i32 %80, ptr %9, align 4
  br label %116

81:                                               ; preds = %48, %47, %45
  %82 = landingpad { ptr, i32 }
          cleanup
  %83 = extractvalue { ptr, i32 } %82, 0
  store ptr %83, ptr %8, align 8
  %84 = extractvalue { ptr, i32 } %82, 1
  store i32 %84, ptr %9, align 4
  br label %90

85:                                               ; preds = %75, %63
  %86 = landingpad { ptr, i32 }
          cleanup
  %87 = extractvalue { ptr, i32 } %86, 0
  store ptr %87, ptr %8, align 8
  %88 = extractvalue { ptr, i32 } %86, 1
  store i32 %88, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 12, ptr %14) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  br label %90

89:                                               ; preds = %76, %50
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  call void @llvm.lifetime.end.p0(i64 12, ptr %11) #7
  br label %41, !llvm.loop !17

90:                                               ; preds = %85, %81
  call void @llvm.lifetime.end.p0(i64 12, ptr %11) #7
  br label %116

91:                                               ; preds = %43
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #7
  store ptr %10, ptr %15, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #7
  %92 = load ptr, ptr %15, align 8, !tbaa !5
  %93 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %92) #7
  %94 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %16, i32 0, i32 0
  store ptr %93, ptr %94, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #7
  %95 = load ptr, ptr %15, align 8, !tbaa !5
  %96 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %95) #7
  %97 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %17, i32 0, i32 0
  store ptr %96, ptr %97, align 8
  br label %98

98:                                               ; preds = %109, %91
  %99 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %16, ptr noundef nonnull align 8 dereferenceable(8) %17) #7
  br i1 %99, label %101, label %100

100:                                              ; preds = %98
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #7
  br label %115

101:                                              ; preds = %98
  call void @llvm.lifetime.start.p0(i64 4, ptr %18) #7
  %102 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %16) #7
  %103 = load i32, ptr %102, align 4, !tbaa !9
  store i32 %103, ptr %18, align 4, !tbaa !9
  %104 = load i32, ptr %18, align 4, !tbaa !9
  %105 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %104)
          to label %106 unwind label %111

106:                                              ; preds = %101
  %107 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %105, ptr noundef @.str)
          to label %108 unwind label %111

108:                                              ; preds = %106
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #7
  br label %109

109:                                              ; preds = %108
  %110 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %16) #7
  br label %98

111:                                              ; preds = %106, %101
  %112 = landingpad { ptr, i32 }
          cleanup
  %113 = extractvalue { ptr, i32 } %112, 0
  store ptr %113, ptr %8, align 8
  %114 = extractvalue { ptr, i32 } %112, 1
  store i32 %114, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #7
  br label %116

115:                                              ; preds = %100
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %10) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %10) #7
  call void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %5) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #7
  ret void

116:                                              ; preds = %111, %90, %77
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %10) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %10) #7
  br label %117

117:                                              ; preds = %116, %36
  call void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %5) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #7
  br label %118

118:                                              ; preds = %117
  %119 = load ptr, ptr %8, align 8
  %120 = load i32, ptr %9, align 4
  %121 = insertvalue { ptr, i32 } poison, ptr %119, 0
  %122 = insertvalue { ptr, i32 } %121, i32 %120, 1
  resume { ptr, i32 } %122
}

; 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 dso_local void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareEC2IS3_vEEv(ptr noundef nonnull align 8 dereferenceable(25)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4NodeC2Eiii(ptr noundef nonnull align 4 dereferenceable(12), i32 noundef, i32 noundef, i32 noundef) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE4pushERKS0_(ptr noundef nonnull align 8 dereferenceable(25), ptr noundef nonnull align 4 dereferenceable(12)) #0 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(12) ptr @_ZNKSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE3topEv(ptr noundef nonnull align 8 dereferenceable(25)) #2 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE3popEv(ptr noundef nonnull align 8 dereferenceable(25)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #5

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareED2Ev(ptr noundef nonnull align 8 dereferenceable(25)) unnamed_addr #4 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #6 = { "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 #7 = { 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"}
!13 = !{i64 0, i64 4, !9, i64 4, i64 4, !9, i64 8, i64 4, !9}
!14 = !{!15, !10, i64 4}
!15 = !{!"_ZTS4Node", !10, i64 0, !10, i64 4, !10, i64 8}
!16 = !{!15, !10, i64 8}
!17 = distinct !{!17, !12}


; 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::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::priority_queue" = type <{ %"class.std::vector.0", [8 x i8] }>
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = 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.Node = type { i32, i32, i32 }
%"class.std::vector.5" = type { %"struct.std::_Vector_base.6" }
%"struct.std::_Vector_base.6" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@_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 void @_Z5mergeSt6vectorIS_IiSaIiEESaIS1_EEi(ptr noundef %0, i32 noundef %1) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::priority_queue", align 8
  %4 = alloca %class.Node, align 4
  %5 = alloca %"class.std::vector.5", align 8
  %6 = alloca %class.Node, align 4
  %7 = alloca %class.Node, align 4
  %8 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %9 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #7
  call void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareEC2IS3_vEEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
  %10 = icmp sgt i32 %1, 0
  br i1 %10, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %2
  %wide.trip.count = zext nneg i32 %1 to i64
  br label %.lr.ph

._crit_edge:                                      ; preds = %18, %2
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %5) #7
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  %11 = call noundef i64 @_ZNKSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
  %.not25 = icmp eq i64 %11, 0
  br i1 %.not25, label %._crit_edge28, label %.lr.ph27

.lr.ph27:                                         ; preds = %._crit_edge
  %12 = getelementptr inbounds i8, ptr %6, i64 4
  %13 = getelementptr inbounds i8, ptr %6, i64 8
  br label %21

.lr.ph:                                           ; preds = %.lr.ph.preheader, %18
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %18 ]
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %4) #7
  %14 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %indvars.iv) #7
  %15 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %14, i64 noundef 0) #7
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = trunc nuw nsw i64 %indvars.iv to i32
  call void @_ZN4NodeC2Eiii(ptr noundef nonnull align 4 dereferenceable(12) %4, i32 noundef %16, i32 noundef %17, i32 noundef 0)
  invoke void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE4pushERKS0_(ptr noundef nonnull align 8 dereferenceable(25) %3, ptr noundef nonnull align 4 dereferenceable(12) %4)
          to label %18 unwind label %19

18:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %4) #7
  %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 %._crit_edge, label %.lr.ph, !llvm.loop !9

19:                                               ; preds = %.lr.ph
  %20 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %4) #7
  br label %59

21:                                               ; preds = %.lr.ph27, %42
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %6) #7
  %22 = call noundef nonnull align 4 dereferenceable(12) ptr @_ZNKSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE3topEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(12) %6, ptr noundef nonnull align 4 dereferenceable(12) %22, i64 12, i1 false), !tbaa.struct !11
  invoke void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE3popEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
          to label %23 unwind label %38

23:                                               ; preds = %21
  invoke void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24) %5, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %24 unwind label %38

24:                                               ; preds = %23
  %25 = load i32, ptr %12, align 4, !tbaa !12
  %26 = load i32, ptr %13, align 4, !tbaa !14
  %27 = add nsw i32 %26, 1
  %28 = sext i32 %27 to i64
  %29 = sext i32 %25 to i64
  %30 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %29) #7
  %31 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %30) #7
  %32 = icmp ugt i64 %31, %28
  br i1 %32, label %33, label %42

33:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %7) #7
  %34 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %29) #7
  %35 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %34, i64 noundef %28) #7
  %36 = load i32, ptr %35, align 4, !tbaa !5
  call void @_ZN4NodeC2Eiii(ptr noundef nonnull align 4 dereferenceable(12) %7, i32 noundef %36, i32 noundef %25, i32 noundef %27)
  invoke void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE4pushERKS0_(ptr noundef nonnull align 8 dereferenceable(25) %3, ptr noundef nonnull align 4 dereferenceable(12) %7)
          to label %37 unwind label %40

37:                                               ; preds = %33
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %7) #7
  br label %42

38:                                               ; preds = %23, %21
  %39 = landingpad { ptr, i32 }
          cleanup
  br label %44

40:                                               ; preds = %33
  %41 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %7) #7
  br label %44

42:                                               ; preds = %37, %24
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %6) #7
  %43 = call noundef i64 @_ZNKSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25) %3)
  %.not = icmp eq i64 %43, 0
  br i1 %.not, label %._crit_edge28, label %21, !llvm.loop !15

44:                                               ; preds = %40, %38
  %.pn = phi { ptr, i32 } [ %41, %40 ], [ %39, %38 ]
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %6) #7
  br label %58

._crit_edge28:                                    ; preds = %42, %._crit_edge
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #7
  %45 = call ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  store ptr %45, ptr %8, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #7
  %46 = call ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  store ptr %46, ptr %9, align 8
  %47 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %9) #7
  br i1 %47, label %.lr.ph30, label %._crit_edge31

._crit_edge31:                                    ; preds = %53, %._crit_edge28
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #7
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #7
  call void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %3) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #7
  ret void

.lr.ph30:                                         ; preds = %._crit_edge28, %53
  %48 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #7
  %49 = load i32, ptr %48, align 4, !tbaa !5
  %50 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %49)
          to label %51 unwind label %56

51:                                               ; preds = %.lr.ph30
  %52 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %50, ptr noundef nonnull @.str)
          to label %53 unwind label %56

53:                                               ; preds = %51
  %54 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %8) #7
  %55 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 8 dereferenceable(8) %9) #7
  br i1 %55, label %.lr.ph30, label %._crit_edge31

56:                                               ; preds = %51, %.lr.ph30
  %57 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #7
  br label %58

58:                                               ; preds = %56, %44
  %.pn.pn = phi { ptr, i32 } [ %.pn, %44 ], [ %57, %56 ]
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #7
  br label %59

59:                                               ; preds = %58, %19
  %.pn22 = phi { ptr, i32 } [ %20, %19 ], [ %.pn.pn, %58 ]
  call void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareED2Ev(ptr noundef nonnull align 8 dereferenceable(25) %3) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #7
  resume { ptr, i32 } %.pn22
}

; 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 dso_local void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareEC2IS3_vEEv(ptr noundef nonnull align 8 dereferenceable(25)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4NodeC2Eiii(ptr noundef nonnull align 4 dereferenceable(12), i32 noundef, i32 noundef, i32 noundef) unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE4pushERKS0_(ptr noundef nonnull align 8 dereferenceable(25), ptr noundef nonnull align 4 dereferenceable(12)) local_unnamed_addr #0 align 2

; 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 nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE4sizeEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(12) ptr @_ZNKSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE3topEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareE3popEv(ptr noundef nonnull align 8 dereferenceable(25)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backERKi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #5

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt14priority_queueI4NodeSt6vectorIS0_SaIS0_EE11NodeCompareED2Ev(ptr noundef nonnull align 8 dereferenceable(25)) unnamed_addr #4 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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #6 = { "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 #7 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{i64 0, i64 4, !5, i64 4, i64 4, !5, i64 8, i64 4, !5}
!12 = !{!13, !6, i64 4}
!13 = !{!"_ZTS4Node", !6, i64 0, !6, i64 4, !6, i64 8}
!14 = !{!13, !6, i64 8}
!15 = distinct !{!15, !10}


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