; LLVM IR from eyangch/competitive-programming :: Codeforces/1536 (d)

; 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_istream" = type { ptr, i64, %"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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long long, long long, std::_Identity<long long>, std::less<long long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long long, long long, std::_Identity<long long>, std::less<long long>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"struct.std::pair" = type <{ %"struct.std::_Rb_tree_const_iterator", i8, [7 x i8] }>
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@T = external dso_local global i64, align 8
@N = external dso_local global i64, align 8
@b = external dso_local global [200000 x i64], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 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::set", align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %"struct.std::pair", align 8
  %7 = alloca i64, align 8
  %8 = alloca i8, align 1
  %9 = alloca i64, align 8
  %10 = alloca i32, align 4
  %11 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %12 = alloca %"struct.std::pair", align 8
  %13 = alloca { ptr, i8 }, align 8
  %14 = alloca i8, align 1
  %15 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %16 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %17 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %18 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %19 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  store i32 0, ptr %1, align 4
  %20 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %21 = getelementptr i8, ptr %20, i64 -24
  %22 = load i64, ptr %21, align 8
  %23 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %22
  %24 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %23, ptr noundef null)
  %25 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %26 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @T)
  br label %27

27:                                               ; preds = %137, %0
  %28 = load i64, ptr @T, align 8, !tbaa !8
  %29 = add nsw i64 %28, -1
  store i64 %29, ptr @T, align 8, !tbaa !8
  %30 = icmp ne i64 %28, 0
  br i1 %30, label %31, label %140

31:                                               ; preds = %27
  %32 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @N)
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #7
  store i64 0, ptr %2, align 8, !tbaa !8
  br label %33

33:                                               ; preds = %42, %31
  %34 = load i64, ptr %2, align 8, !tbaa !8
  %35 = load i64, ptr @N, align 8, !tbaa !8
  %36 = icmp slt i64 %34, %35
  br i1 %36, label %38, label %37

37:                                               ; preds = %33
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #7
  br label %45

38:                                               ; preds = %33
  %39 = load i64, ptr %2, align 8, !tbaa !8
  %40 = getelementptr inbounds [200000 x i64], ptr @b, i64 0, i64 %39
  %41 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %40)
  br label %42

42:                                               ; preds = %38
  %43 = load i64, ptr %2, align 8, !tbaa !8
  %44 = add nsw i64 %43, 1
  store i64 %44, ptr %2, align 8, !tbaa !8
  br label %33, !llvm.loop !11

45:                                               ; preds = %37
  call void @llvm.lifetime.start.p0(i64 48, ptr %3) #7
  call void @_ZNSt3setIxSt4lessIxESaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #7
  %46 = invoke { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) @b)
          to label %47 unwind label %58

47:                                               ; preds = %45
  %48 = getelementptr inbounds { ptr, i8 }, ptr %6, i32 0, i32 0
  %49 = extractvalue { ptr, i8 } %46, 0
  store ptr %49, ptr %48, align 8
  %50 = getelementptr inbounds { ptr, i8 }, ptr %6, i32 0, i32 1
  %51 = extractvalue { ptr, i8 } %46, 1
  store i8 %51, ptr %50, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #7
  %52 = load i64, ptr @b, align 16, !tbaa !8
  store i64 %52, ptr %7, align 8, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #7
  store i8 1, ptr %8, align 1, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #7
  store i64 1, ptr %9, align 8, !tbaa !8
  br label %53

53:                                               ; preds = %116, %47
  %54 = load i64, ptr %9, align 8, !tbaa !8
  %55 = load i64, ptr @N, align 8, !tbaa !8
  %56 = icmp slt i64 %54, %55
  br i1 %56, label %62, label %57

57:                                               ; preds = %53
  store i32 7, ptr %10, align 4
  br label %119

58:                                               ; preds = %45
  %59 = landingpad { ptr, i32 }
          cleanup
  %60 = extractvalue { ptr, i32 } %59, 0
  store ptr %60, ptr %4, align 8
  %61 = extractvalue { ptr, i32 } %59, 1
  store i32 %61, ptr %5, align 4
  br label %139

62:                                               ; preds = %53
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #7
  call void @llvm.lifetime.start.p0(i64 16, ptr %12) #7
  %63 = load i64, ptr %9, align 8, !tbaa !8
  %64 = getelementptr inbounds [200000 x i64], ptr @b, i64 0, i64 %63
  %65 = invoke { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 8 dereferenceable(8) %64)
          to label %66 unwind label %73

66:                                               ; preds = %62
  store { ptr, i8 } %65, ptr %13, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %12, ptr align 8 %13, i64 9, i1 false)
  %67 = getelementptr inbounds %"struct.std::pair", ptr %12, i32 0, i32 0
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %11, ptr align 8 %67, i64 8, i1 false), !tbaa.struct !15
  call void @llvm.lifetime.end.p0(i64 16, ptr %12) #7
  call void @llvm.lifetime.start.p0(i64 1, ptr %14) #7
  store i8 0, ptr %14, align 1, !tbaa !13
  %68 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #7
  %69 = load i64, ptr %68, align 8, !tbaa !8
  %70 = load i64, ptr %7, align 8, !tbaa !8
  %71 = icmp eq i64 %69, %70
  br i1 %71, label %72, label %77

72:                                               ; preds = %66
  store i8 1, ptr %14, align 1, !tbaa !13
  br label %77

73:                                               ; preds = %62
  %74 = landingpad { ptr, i32 }
          cleanup
  %75 = extractvalue { ptr, i32 } %74, 0
  store ptr %75, ptr %4, align 8
  %76 = extractvalue { ptr, i32 } %74, 1
  store i32 %76, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %12) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #7
  br label %138

77:                                               ; preds = %72, %66
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #7
  %78 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %3) #7
  %79 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %15, i32 0, i32 0
  store ptr %78, ptr %79, align 8
  %80 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 8 dereferenceable(8) %15) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #7
  br i1 %80, label %81, label %92

81:                                               ; preds = %77
  %82 = call ptr @_ZNSt23_Rb_tree_const_iteratorIxEmmEi(ptr noundef nonnull align 8 dereferenceable(8) %11, i32 noundef 0) #7
  %83 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %16, i32 0, i32 0
  store ptr %82, ptr %83, align 8
  %84 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #7
  %85 = load i64, ptr %84, align 8, !tbaa !8
  %86 = load i64, ptr %7, align 8, !tbaa !8
  %87 = icmp eq i64 %85, %86
  br i1 %87, label %88, label %89

88:                                               ; preds = %81
  store i8 1, ptr %14, align 1, !tbaa !13
  br label %89

89:                                               ; preds = %88, %81
  %90 = call ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEi(ptr noundef nonnull align 8 dereferenceable(8) %11, i32 noundef 0) #7
  %91 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %17, i32 0, i32 0
  store ptr %90, ptr %91, align 8
  br label %92

92:                                               ; preds = %89, %77
  %93 = call ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEi(ptr noundef nonnull align 8 dereferenceable(8) %11, i32 noundef 0) #7
  %94 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %18, i32 0, i32 0
  store ptr %93, ptr %94, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %19) #7
  %95 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %3) #7
  %96 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %19, i32 0, i32 0
  store ptr %95, ptr %96, align 8
  %97 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 8 dereferenceable(8) %19) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %19) #7
  br i1 %97, label %98, label %105

98:                                               ; preds = %92
  %99 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #7
  %100 = load i64, ptr %99, align 8, !tbaa !8
  %101 = load i64, ptr %7, align 8, !tbaa !8
  %102 = icmp eq i64 %100, %101
  br i1 %102, label %103, label %104

103:                                              ; preds = %98
  store i8 1, ptr %14, align 1, !tbaa !13
  br label %104

104:                                              ; preds = %103, %98
  br label %105

105:                                              ; preds = %104, %92
  %106 = load i8, ptr %14, align 1, !tbaa !13, !range !18, !noundef !19
  %107 = trunc i8 %106 to i1
  br i1 %107, label %109, label %108

108:                                              ; preds = %105
  store i8 0, ptr %8, align 1, !tbaa !13
  store i32 7, ptr %10, align 4
  br label %113

109:                                              ; preds = %105
  %110 = load i64, ptr %9, align 8, !tbaa !8
  %111 = getelementptr inbounds [200000 x i64], ptr @b, i64 0, i64 %110
  %112 = load i64, ptr %111, align 8, !tbaa !8
  store i64 %112, ptr %7, align 8, !tbaa !8
  store i32 0, ptr %10, align 4
  br label %113

113:                                              ; preds = %109, %108
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #7
  %114 = load i32, ptr %10, align 4
  switch i32 %114, label %119 [
    i32 0, label %115
  ]

115:                                              ; preds = %113
  br label %116

116:                                              ; preds = %115
  %117 = load i64, ptr %9, align 8, !tbaa !8
  %118 = add nsw i64 %117, 1
  store i64 %118, ptr %9, align 8, !tbaa !8
  br label %53, !llvm.loop !20

119:                                              ; preds = %113, %57
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #7
  br label %120

120:                                              ; preds = %119
  %121 = load i8, ptr %8, align 1, !tbaa !13, !range !18, !noundef !19
  %122 = trunc i8 %121 to i1
  br i1 %122, label %123, label %132

123:                                              ; preds = %120
  %124 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
          to label %125 unwind label %128

125:                                              ; preds = %123
  %126 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %124, i8 noundef signext 10)
          to label %127 unwind label %128

127:                                              ; preds = %125
  br label %137

128:                                              ; preds = %134, %132, %125, %123
  %129 = landingpad { ptr, i32 }
          cleanup
  %130 = extractvalue { ptr, i32 } %129, 0
  store ptr %130, ptr %4, align 8
  %131 = extractvalue { ptr, i32 } %129, 1
  store i32 %131, ptr %5, align 4
  br label %138

132:                                              ; preds = %120
  %133 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
          to label %134 unwind label %128

134:                                              ; preds = %132
  %135 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %133, i8 noundef signext 10)
          to label %136 unwind label %128

136:                                              ; preds = %134
  br label %137

137:                                              ; preds = %136, %127
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #7
  call void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #7
  call void @llvm.lifetime.end.p0(i64 48, ptr %3) #7
  br label %27, !llvm.loop !21

138:                                              ; preds = %128, %73
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #7
  br label %139

139:                                              ; preds = %138, %58
  call void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #7
  call void @llvm.lifetime.end.p0(i64 48, ptr %3) #7
  br label %142

140:                                              ; preds = %27
  %141 = load i32, ptr %1, align 4
  ret i32 %141

142:                                              ; preds = %139
  %143 = load ptr, ptr %4, align 8
  %144 = load i32, ptr %5, align 4
  %145 = insertvalue { ptr, i32 } poison, ptr %143, 0
  %146 = insertvalue { ptr, i32 } %145, i32 %144, 1
  resume { ptr, i32 } %146
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #1 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIxSt4lessIxESaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

declare i32 @__gxx_personality_v0(...)

; 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) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorIxEmmEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #6

; 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) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 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 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 = { "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 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #6 = { 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 #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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long long", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !14, i64 0}
!14 = !{!"bool", !10, i64 0}
!15 = !{i64 0, i64 8, !16}
!16 = !{!17, !17, i64 0}
!17 = !{!"any pointer", !10, i64 0}
!18 = !{i8 0, i8 2}
!19 = !{}
!20 = distinct !{!20, !12}
!21 = distinct !{!21, !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_istream" = type { ptr, i64, %"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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long long, long long, std::_Identity<long long>, std::less<long long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long long, long long, std::_Identity<long long>, std::less<long long>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@T = external dso_local global i64, align 8
@N = external dso_local global i64, align 8
@b = external dso_local global [200000 x i64], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 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 %"class.std::set", align 8
  %2 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %3 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %4 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %5 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %6 = getelementptr i8, ptr %5, i64 -24
  %7 = load i64, ptr %6, align 8
  %8 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %7
  %9 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %8, ptr noundef null)
  %10 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %11 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @T)
  %12 = load i64, ptr @T, align 8, !tbaa !8
  %13 = add nsw i64 %12, -1
  store i64 %13, ptr @T, align 8, !tbaa !8
  %.not48 = icmp eq i64 %12, 0
  br i1 %.not48, label %._crit_edge51, label %.lr.ph50

.lr.ph50:                                         ; preds = %0, %64
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @N)
  %15 = load i64, ptr @N, align 8, !tbaa !8
  %16 = icmp sgt i64 %15, 0
  br i1 %16, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.lr.ph50
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %1) #6
  call void @_ZNSt3setIxSt4lessIxESaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %1) #6
  %17 = invoke { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48) %1, ptr noundef nonnull align 8 dereferenceable(8) @b)
          to label %23 unwind label %27

.lr.ph:                                           ; preds = %.lr.ph50, %.lr.ph
  %.042 = phi i64 [ %20, %.lr.ph ], [ 0, %.lr.ph50 ]
  %18 = getelementptr inbounds [200000 x i64], ptr @b, i64 0, i64 %.042
  %19 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %18)
  %20 = add nuw nsw i64 %.042, 1
  %21 = load i64, ptr @N, align 8, !tbaa !8
  %22 = icmp slt i64 %20, %21
  br i1 %22, label %.lr.ph, label %._crit_edge, !llvm.loop !11

23:                                               ; preds = %._crit_edge
  %24 = load i64, ptr @N, align 8, !tbaa !8
  %25 = icmp sgt i64 %24, 1
  br i1 %25, label %.lr.ph46.preheader, label %.thread40.invoke

.lr.ph46.preheader:                               ; preds = %23
  %26 = load i64, ptr @b, align 16, !tbaa !8
  br label %.lr.ph46

27:                                               ; preds = %._crit_edge
  %28 = landingpad { ptr, i32 }
          cleanup
  br label %67

.lr.ph46:                                         ; preds = %.lr.ph46.preheader, %56
  %.02544 = phi i64 [ %57, %56 ], [ %26, %.lr.ph46.preheader ]
  %.03043 = phi i64 [ %58, %56 ], [ 1, %.lr.ph46.preheader ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  %29 = getelementptr inbounds [200000 x i64], ptr @b, i64 0, i64 %.03043
  %30 = invoke { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48) %1, ptr noundef nonnull align 8 dereferenceable(8) %29)
          to label %31 unwind label %37

31:                                               ; preds = %.lr.ph46
  %.fca.0.extract = extractvalue { ptr, i8 } %30, 0
  store ptr %.fca.0.extract, ptr %2, align 8, !tbaa !13
  %32 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #6
  %33 = load i64, ptr %32, align 8, !tbaa !8
  %34 = icmp eq i64 %33, %.02544
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  %35 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %1) #6
  store ptr %35, ptr %3, align 8
  %36 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  br i1 %36, label %39, label %45

37:                                               ; preds = %.lr.ph46
  %38 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  br label %67

39:                                               ; preds = %31
  %40 = call ptr @_ZNSt23_Rb_tree_const_iteratorIxEmmEi(ptr noundef nonnull align 8 dereferenceable(8) %2, i32 noundef 0) #6
  %41 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #6
  %42 = load i64, ptr %41, align 8, !tbaa !8
  %43 = icmp eq i64 %42, %.02544
  %spec.select34 = select i1 %43, i1 true, i1 %34
  %44 = call ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEi(ptr noundef nonnull align 8 dereferenceable(8) %2, i32 noundef 0) #6
  br label %45

45:                                               ; preds = %39, %31
  %.2 = phi i1 [ %spec.select34, %39 ], [ %34, %31 ]
  %46 = call ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEi(ptr noundef nonnull align 8 dereferenceable(8) %2, i32 noundef 0) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  %47 = call ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %1) #6
  store ptr %47, ptr %4, align 8
  %48 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  br i1 %48, label %49, label %53

49:                                               ; preds = %45
  %50 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #6
  %51 = load i64, ptr %50, align 8, !tbaa !8
  %52 = icmp eq i64 %51, %.02544
  %spec.select35 = select i1 %52, i1 true, i1 %.2
  br i1 %spec.select35, label %56, label %.thread40

53:                                               ; preds = %45
  br i1 %.2, label %56, label %.thread40

.thread40:                                        ; preds = %49, %53
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  br label %.thread40.invoke

.thread40.invoke:                                 ; preds = %56, %23, %.thread40
  %54 = phi ptr [ @.str.1, %.thread40 ], [ @.str, %23 ], [ @.str, %56 ]
  %55 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull %54)
          to label %.invoke unwind label %61

56:                                               ; preds = %49, %53
  %57 = load i64, ptr %29, align 8, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  %58 = add nuw nsw i64 %.03043, 1
  %59 = load i64, ptr @N, align 8, !tbaa !8
  %60 = icmp slt i64 %58, %59
  br i1 %60, label %.lr.ph46, label %.thread40.invoke, !llvm.loop !15

61:                                               ; preds = %.thread40.invoke, %.invoke
  %62 = landingpad { ptr, i32 }
          cleanup
  br label %67

.invoke:                                          ; preds = %.thread40.invoke
  %63 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %55, i8 noundef signext 10)
          to label %64 unwind label %61

64:                                               ; preds = %.invoke
  call void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %1) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %1) #6
  %65 = load i64, ptr @T, align 8, !tbaa !8
  %66 = add nsw i64 %65, -1
  store i64 %66, ptr @T, align 8, !tbaa !8
  %.not = icmp eq i64 %65, 0
  br i1 %.not, label %._crit_edge51, label %.lr.ph50, !llvm.loop !16

67:                                               ; preds = %37, %61, %27
  %.pn.pn = phi { ptr, i32 } [ %28, %27 ], [ %62, %61 ], [ %38, %37 ]
  call void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %1) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn.pn

._crit_edge51:                                    ; preds = %64, %0
  ret i32 0
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #1 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIxSt4lessIxESaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertERKx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIxEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIxES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIxSt4lessIxESaIxEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorIxEmmEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorIxEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIxSt4lessIxESaIxEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #5

; 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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 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 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 = { "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 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long long", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !14, i64 0}
!14 = !{!"any pointer", !10, i64 0}
!15 = distinct !{!15, !12}
!16 = distinct !{!16, !12}


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