; LLVM IR from DionysiosB/CodeForces :: 0800-0899 (847B-PreparingForMergeSort)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<long>, std::allocator<std::vector<long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<long>, std::allocator<std::vector<long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<long>, std::allocator<std::vector<long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<long>, std::allocator<std::vector<long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl" }
%"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl" = type { %"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl_data" }
%"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.2" = type { i8 }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::vector.0", align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca %"class.std::vector.0", align 8
  %10 = alloca %"class.std::allocator.2", align 1
  %11 = alloca i64, align 8
  %12 = alloca i64, align 8
  %13 = alloca i64, align 8
  %14 = alloca i64, align 8
  %15 = alloca i64, align 8
  %16 = alloca i32, align 4
  %17 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  %18 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #5
  call void @_ZNSt6vectorIS_IlSaIlEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.start.p0(i64 24, ptr %4) #5
  call void @_ZNSt6vectorIlSaIlEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  store i64 0, ptr %5, align 8, !tbaa !5
  br label %19

19:                                               ; preds = %90, %0
  %20 = load i64, ptr %5, align 8, !tbaa !5
  %21 = load i64, ptr %2, align 8, !tbaa !5
  %22 = icmp slt i64 %20, %21
  br i1 %22, label %24, label %23

23:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  br label %94

24:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %25 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %6)
          to label %26 unwind label %38

26:                                               ; preds = %24
  %27 = call noundef i64 @_ZNKSt6vectorIlSaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  %28 = icmp ule i64 %27, 0
  br i1 %28, label %34, label %29

29:                                               ; preds = %26
  %30 = load i64, ptr %6, align 8, !tbaa !5
  %31 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEE4backEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  %32 = load i64, ptr %31, align 8, !tbaa !5
  %33 = icmp slt i64 %30, %32
  br i1 %33, label %34, label %51

34:                                               ; preds = %29, %26
  invoke void @_ZNSt6vectorIlSaIlEE9push_backERKl(ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 8 dereferenceable(8) %6)
          to label %35 unwind label %38

35:                                               ; preds = %34
  call void @llvm.lifetime.start.p0(i64 24, ptr %9) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %10) #5
  call void @_ZNSaIlEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #5
  invoke void @_ZNSt6vectorIlSaIlEEC2EmRKlRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %9, i64 noundef 1, ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 1 dereferenceable(1) %10)
          to label %36 unwind label %42

36:                                               ; preds = %35
  invoke void @_ZNSt6vectorIS_IlSaIlEESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 8 dereferenceable(24) %9)
          to label %37 unwind label %46

37:                                               ; preds = %36
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #5
  call void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %9) #5
  br label %89

38:                                               ; preds = %34, %24
  %39 = landingpad { ptr, i32 }
          cleanup
  %40 = extractvalue { ptr, i32 } %39, 0
  store ptr %40, ptr %7, align 8
  %41 = extractvalue { ptr, i32 } %39, 1
  store i32 %41, ptr %8, align 4
  br label %93

42:                                               ; preds = %35
  %43 = landingpad { ptr, i32 }
          cleanup
  %44 = extractvalue { ptr, i32 } %43, 0
  store ptr %44, ptr %7, align 8
  %45 = extractvalue { ptr, i32 } %43, 1
  store i32 %45, ptr %8, align 4
  br label %50

46:                                               ; preds = %36
  %47 = landingpad { ptr, i32 }
          cleanup
  %48 = extractvalue { ptr, i32 } %47, 0
  store ptr %48, ptr %7, align 8
  %49 = extractvalue { ptr, i32 } %47, 1
  store i32 %49, ptr %8, align 4
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %9) #5
  br label %50

50:                                               ; preds = %46, %42
  call void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %9) #5
  br label %93

51:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #5
  store i64 0, ptr %11, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #5
  %52 = call noundef i64 @_ZNKSt6vectorIlSaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  %53 = sub i64 %52, 1
  store i64 %53, ptr %12, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #5
  %54 = call noundef i64 @_ZNKSt6vectorIlSaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  %55 = sub i64 %54, 1
  store i64 %55, ptr %13, align 8, !tbaa !5
  br label %56

56:                                               ; preds = %77, %51
  %57 = load i64, ptr %11, align 8, !tbaa !5
  %58 = load i64, ptr %12, align 8, !tbaa !5
  %59 = icmp sle i64 %57, %58
  br i1 %59, label %60, label %78

60:                                               ; preds = %56
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #5
  %61 = load i64, ptr %11, align 8, !tbaa !5
  %62 = load i64, ptr %12, align 8, !tbaa !5
  %63 = add nsw i64 %61, %62
  %64 = sdiv i64 %63, 2
  store i64 %64, ptr %14, align 8, !tbaa !5
  %65 = load i64, ptr %14, align 8, !tbaa !5
  %66 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %65) #5
  %67 = load i64, ptr %66, align 8, !tbaa !5
  %68 = load i64, ptr %6, align 8, !tbaa !5
  %69 = icmp sle i64 %67, %68
  br i1 %69, label %70, label %74

70:                                               ; preds = %60
  %71 = load i64, ptr %14, align 8, !tbaa !5
  store i64 %71, ptr %13, align 8, !tbaa !5
  %72 = load i64, ptr %14, align 8, !tbaa !5
  %73 = sub nsw i64 %72, 1
  store i64 %73, ptr %12, align 8, !tbaa !5
  br label %77

74:                                               ; preds = %60
  %75 = load i64, ptr %11, align 8, !tbaa !5
  %76 = add nsw i64 %75, 1
  store i64 %76, ptr %11, align 8, !tbaa !5
  br label %77

77:                                               ; preds = %74, %70
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #5
  br label %56, !llvm.loop !9

78:                                               ; preds = %56
  %79 = load i64, ptr %6, align 8, !tbaa !5
  %80 = load i64, ptr %13, align 8, !tbaa !5
  %81 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %80) #5
  store i64 %79, ptr %81, align 8, !tbaa !5
  %82 = load i64, ptr %13, align 8, !tbaa !5
  %83 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IlSaIlEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %82) #5
  invoke void @_ZNSt6vectorIlSaIlEE9push_backERKl(ptr noundef nonnull align 8 dereferenceable(24) %83, ptr noundef nonnull align 8 dereferenceable(8) %6)
          to label %84 unwind label %85

84:                                               ; preds = %78
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  br label %89

85:                                               ; preds = %78
  %86 = landingpad { ptr, i32 }
          cleanup
  %87 = extractvalue { ptr, i32 } %86, 0
  store ptr %87, ptr %7, align 8
  %88 = extractvalue { ptr, i32 } %86, 1
  store i32 %88, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  br label %93

89:                                               ; preds = %84, %37
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  br label %90

90:                                               ; preds = %89
  %91 = load i64, ptr %5, align 8, !tbaa !5
  %92 = add nsw i64 %91, 1
  store i64 %92, ptr %5, align 8, !tbaa !5
  br label %19, !llvm.loop !11

93:                                               ; preds = %85, %50, %38
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  br label %136

94:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #5
  store i64 0, ptr %15, align 8, !tbaa !5
  br label %95

95:                                               ; preds = %126, %94
  %96 = load i64, ptr %15, align 8, !tbaa !5
  %97 = call noundef i64 @_ZNKSt6vectorIS_IlSaIlEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  %98 = icmp ult i64 %96, %97
  br i1 %98, label %100, label %99

99:                                               ; preds = %95
  store i32 7, ptr %16, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #5
  br label %134

100:                                              ; preds = %95
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #5
  store i64 0, ptr %17, align 8, !tbaa !5
  br label %101

101:                                              ; preds = %116, %100
  %102 = load i64, ptr %17, align 8, !tbaa !5
  %103 = load i64, ptr %15, align 8, !tbaa !5
  %104 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IlSaIlEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %103) #5
  %105 = call noundef i64 @_ZNKSt6vectorIlSaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %104) #5
  %106 = icmp ult i64 %102, %105
  br i1 %106, label %108, label %107

107:                                              ; preds = %101
  store i32 10, ptr %16, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #5
  br label %123

108:                                              ; preds = %101
  %109 = load i64, ptr %15, align 8, !tbaa !5
  %110 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IlSaIlEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %109) #5
  %111 = load i64, ptr %17, align 8, !tbaa !5
  %112 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %110, i64 noundef %111) #5
  %113 = load i64, ptr %112, align 8, !tbaa !5
  %114 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %113)
          to label %115 unwind label %119

115:                                              ; preds = %108
  br label %116

116:                                              ; preds = %115
  %117 = load i64, ptr %17, align 8, !tbaa !5
  %118 = add nsw i64 %117, 1
  store i64 %118, ptr %17, align 8, !tbaa !5
  br label %101, !llvm.loop !12

119:                                              ; preds = %108
  %120 = landingpad { ptr, i32 }
          cleanup
  %121 = extractvalue { ptr, i32 } %120, 0
  store ptr %121, ptr %7, align 8
  %122 = extractvalue { ptr, i32 } %120, 1
  store i32 %122, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #5
  br label %133

123:                                              ; preds = %107
  %124 = invoke i32 @puts(ptr noundef @.str.2)
          to label %125 unwind label %129

125:                                              ; preds = %123
  br label %126

126:                                              ; preds = %125
  %127 = load i64, ptr %15, align 8, !tbaa !5
  %128 = add nsw i64 %127, 1
  store i64 %128, ptr %15, align 8, !tbaa !5
  br label %95, !llvm.loop !13

129:                                              ; preds = %123
  %130 = landingpad { ptr, i32 }
          cleanup
  %131 = extractvalue { ptr, i32 } %130, 0
  store ptr %131, ptr %7, align 8
  %132 = extractvalue { ptr, i32 } %130, 1
  store i32 %132, ptr %8, align 4
  br label %133

133:                                              ; preds = %129, %119
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #5
  br label %136

134:                                              ; preds = %99
  store i32 0, ptr %1, align 4
  store i32 1, ptr %16, align 4
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #5
  call void @_ZNSt6vectorIS_IlSaIlEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  %135 = load i32, ptr %1, align 4
  ret i32 %135

136:                                              ; preds = %133, %93
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #5
  call void @_ZNSt6vectorIS_IlSaIlEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  br label %137

137:                                              ; preds = %136
  %138 = load ptr, ptr %7, align 8
  %139 = load i32, ptr %8, align 4
  %140 = insertvalue { ptr, i32 } poison, ptr %138, 0
  %141 = insertvalue { ptr, i32 } %140, i32 %139, 1
  resume { ptr, i32 } %141
}

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

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IlSaIlEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIlSaIlEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIlSaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEE4backEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIlSaIlEE9push_backERKl(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_IlSaIlEESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIlEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIlSaIlEEC2EmRKlRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 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 noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IlSaIlEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIS_IlSaIlEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

declare i32 @printf(ptr noundef, ...) #2

declare i32 @puts(ptr noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IlSaIlEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

attributes #0 = { mustprogress norecurse 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 = { "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 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 #4 = { 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 #5 = { nounwind }

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

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


; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<long>, std::allocator<std::vector<long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<long>, std::allocator<std::vector<long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<long>, std::allocator<std::vector<long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<long>, std::allocator<std::vector<long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = type { %"struct.std::_Vector_base.1" }
%"struct.std::_Vector_base.1" = type { %"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl" }
%"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl" = type { %"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl_data" }
%"struct.std::_Vector_base<long, std::allocator<long>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.2" = type { i8 }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [1 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca %"class.std::vector", align 8
  %3 = alloca %"class.std::vector.0", align 8
  %4 = alloca i64, align 8
  %5 = alloca %"class.std::vector.0", align 8
  %6 = alloca %"class.std::allocator.2", align 1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #5
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #5
  call void @_ZNSt6vectorIS_IlSaIlEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #5
  call void @_ZNSt6vectorIlSaIlEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  %8 = load i64, ptr %1, align 8, !tbaa !5
  %9 = icmp sgt i64 %8, 0
  br i1 %9, label %.lr.ph42, label %.preheader35

.preheader35:                                     ; preds = %47, %0
  %10 = call noundef i64 @_ZNKSt6vectorIS_IlSaIlEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  %.not48 = icmp eq i64 %10, 0
  br i1 %.not48, label %._crit_edge47, label %.preheader

.lr.ph42:                                         ; preds = %0, %47
  %.03140 = phi i64 [ %48, %47 ], [ 0, %0 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %4)
  %12 = call noundef i64 @_ZNKSt6vectorIlSaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  %13 = icmp eq i64 %12, 0
  br i1 %13, label %19, label %14

14:                                               ; preds = %.lr.ph42
  %15 = load i64, ptr %4, align 8, !tbaa !5
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEE4backEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  %17 = load i64, ptr %16, align 8, !tbaa !5
  %18 = icmp slt i64 %15, %17
  br i1 %18, label %19, label %30

19:                                               ; preds = %14, %.lr.ph42
  invoke void @_ZNSt6vectorIlSaIlEE9push_backERKl(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %20 unwind label %23

20:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %5) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #5
  call void @_ZNSaIlEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  invoke void @_ZNSt6vectorIlSaIlEEC2EmRKlRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef 1, ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %21 unwind label %25

21:                                               ; preds = %20
  invoke void @_ZNSt6vectorIS_IlSaIlEESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef nonnull align 8 dereferenceable(24) %5)
          to label %22 unwind label %27

22:                                               ; preds = %21
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  call void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #5
  br label %47

23:                                               ; preds = %19
  %24 = landingpad { ptr, i32 }
          cleanup
  br label %51

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

27:                                               ; preds = %21
  %28 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #5
  br label %29

29:                                               ; preds = %27, %25
  %.pn = phi { ptr, i32 } [ %28, %27 ], [ %26, %25 ]
  call void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #5
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #5
  br label %51

30:                                               ; preds = %14
  %31 = call noundef i64 @_ZNKSt6vectorIlSaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  %32 = add i64 %31, -1
  %33 = call noundef i64 @_ZNKSt6vectorIlSaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  %34 = add i64 %33, -1
  %.not36 = icmp slt i64 %32, 0
  br i1 %.not36, label %.._crit_edge_crit_edge, label %.lr.ph

.._crit_edge_crit_edge:                           ; preds = %30
  %.pre = load i64, ptr %4, align 8, !tbaa !5
  br label %._crit_edge

.lr.ph:                                           ; preds = %30, %.lr.ph
  %.02239 = phi i64 [ %.1, %.lr.ph ], [ %34, %30 ]
  %.02338 = phi i64 [ %.124, %.lr.ph ], [ %32, %30 ]
  %.02537 = phi i64 [ %.126, %.lr.ph ], [ 0, %30 ]
  %35 = add nsw i64 %.02338, %.02537
  %36 = sdiv i64 %35, 2
  %37 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %36) #5
  %38 = load i64, ptr %37, align 8, !tbaa !5
  %39 = load i64, ptr %4, align 8, !tbaa !5
  %.not32 = icmp sgt i64 %38, %39
  %40 = add nsw i64 %36, -1
  %41 = zext i1 %.not32 to i64
  %.126 = add nuw nsw i64 %.02537, %41
  %.124 = select i1 %.not32, i64 %.02338, i64 %40
  %.1 = select i1 %.not32, i64 %.02239, i64 %36
  %.not = icmp sgt i64 %.126, %.124
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %.._crit_edge_crit_edge
  %42 = phi i64 [ %.pre, %.._crit_edge_crit_edge ], [ %39, %.lr.ph ]
  %.022.lcssa = phi i64 [ %34, %.._crit_edge_crit_edge ], [ %.1, %.lr.ph ]
  %43 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %.022.lcssa) #5
  store i64 %42, ptr %43, align 8, !tbaa !5
  %44 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IlSaIlEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %.022.lcssa) #5
  invoke void @_ZNSt6vectorIlSaIlEE9push_backERKl(ptr noundef nonnull align 8 dereferenceable(24) %44, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %47 unwind label %45

45:                                               ; preds = %._crit_edge
  %46 = landingpad { ptr, i32 }
          cleanup
  br label %51

47:                                               ; preds = %._crit_edge, %22
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  %48 = add nuw nsw i64 %.03140, 1
  %49 = load i64, ptr %1, align 8, !tbaa !5
  %50 = icmp slt i64 %48, %49
  br i1 %50, label %.lr.ph42, label %.preheader35, !llvm.loop !11

51:                                               ; preds = %45, %29, %23
  %.pn.pn = phi { ptr, i32 } [ %.pn, %29 ], [ %24, %23 ], [ %46, %45 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #5
  call void @_ZNSt6vectorIS_IlSaIlEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  resume { ptr, i32 } %.pn.pn

.preheader:                                       ; preds = %.preheader35, %._crit_edge45
  %.02146 = phi i64 [ %55, %._crit_edge45 ], [ 0, %.preheader35 ]
  %52 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IlSaIlEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %.02146) #5
  %53 = call noundef i64 @_ZNKSt6vectorIlSaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %52) #5
  %.not49 = icmp eq i64 %53, 0
  br i1 %.not49, label %._crit_edge45, label %.lr.ph44

._crit_edge47:                                    ; preds = %._crit_edge45, %.preheader35
  call void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #5
  call void @_ZNSt6vectorIS_IlSaIlEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  ret i32 0

._crit_edge45:                                    ; preds = %.lr.ph44, %.preheader
  %54 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  %55 = add nuw nsw i64 %.02146, 1
  %56 = call noundef i64 @_ZNKSt6vectorIS_IlSaIlEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  %57 = icmp ult i64 %55, %56
  br i1 %57, label %.preheader, label %._crit_edge47, !llvm.loop !12

.lr.ph44:                                         ; preds = %.preheader, %.lr.ph44
  %.043 = phi i64 [ %62, %.lr.ph44 ], [ 0, %.preheader ]
  %58 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IlSaIlEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %.02146) #5
  %59 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %58, i64 noundef %.043) #5
  %60 = load i64, ptr %59, align 8, !tbaa !5
  %61 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %60)
  %62 = add nuw nsw i64 %.043, 1
  %63 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IlSaIlEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %.02146) #5
  %64 = call noundef i64 @_ZNKSt6vectorIlSaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %63) #5
  %65 = icmp ult i64 %62, %64
  br i1 %65, label %.lr.ph44, label %._crit_edge45, !llvm.loop !13
}

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

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IlSaIlEESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIlSaIlEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIlSaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEE4backEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIlSaIlEE9push_backERKl(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_IlSaIlEESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIlEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIlSaIlEEC2EmRKlRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIlSaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 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 noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIlSaIlEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IlSaIlEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIS_IlSaIlEESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @puts(ptr nocapture noundef readonly) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IlSaIlEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIlED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

attributes #0 = { mustprogress norecurse 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 = { nofree 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 #3 = { 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 #4 = { 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 #5 = { nounwind }

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

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


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