; LLVM IR from bqi343/cp-notebook :: Contests/USACO Solutions/2012-13/Open 2013/13 Open G1.ll (Z5againv)

; 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::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int>>, std::less<std::pair<int, int>>>::_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 }
%"struct.std::pair" = type { i32, i32 }
%"struct.std::pair.3" = type <{ %"struct.std::_Rb_tree_const_iterator", i8, [7 x i8] }>

@N = external dso_local global i32, align 4
@mn = external dso_local global [200002 x i32], align 16
@mx = external dso_local global [200002 x i32], align 16
@z = external dso_local global %"class.std::vector", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #0 align 2

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

; 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 i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIS1_E(ptr noundef nonnull align 8 dereferenceable(48), ptr) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt4prevISt23_Rb_tree_const_iteratorISt4pairIiiEEET_S4_NSt15iterator_traitsIS4_E15difference_typeE(ptr, i64 noundef) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE6insertEOS1_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5againv() #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::set", align 8
  %3 = alloca i32, align 4
  %4 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %5 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %9 = alloca %"struct.std::pair", align 4
  %10 = alloca %"struct.std::pair.3", align 8
  %11 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %12 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %13 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #4
  store i32 0, ptr %1, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 48, ptr %2) #4
  call void @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 1, ptr %3, align 4, !tbaa !5
  br label %14

14:                                               ; preds = %119, %0
  %15 = load i32, ptr %3, align 4, !tbaa !5
  %16 = load i32, ptr @N, align 4, !tbaa !5
  %17 = add nsw i32 %16, 1
  %18 = icmp slt i32 %15, %17
  br i1 %18, label %20, label %19

19:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  br label %123

20:                                               ; preds = %14
  br label %21

21:                                               ; preds = %40, %20
  %22 = call noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  %23 = icmp ne i64 %22, 0
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  br i1 %23, label %24, label %32

24:                                               ; preds = %21
  %25 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  %26 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %4, i32 0, i32 0
  store ptr %25, ptr %26, align 8
  %27 = call noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  %28 = getelementptr inbounds %"struct.std::pair", ptr %27, i32 0, i32 0
  %29 = load i32, ptr %28, align 4, !tbaa !9
  %30 = load i32, ptr %3, align 4, !tbaa !5
  %31 = icmp slt i32 %29, %30
  br label %32

32:                                               ; preds = %24, %21
  %33 = phi i1 [ false, %21 ], [ %31, %24 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  br i1 %33, label %34, label %46

34:                                               ; preds = %32
  %35 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  %36 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %5, i32 0, i32 0
  store ptr %35, ptr %36, align 8
  %37 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %5, i32 0, i32 0
  %38 = load ptr, ptr %37, align 8
  %39 = invoke ptr @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIS1_E(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr %38)
          to label %40 unwind label %42

40:                                               ; preds = %34
  %41 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %8, i32 0, i32 0
  store ptr %39, ptr %41, align 8
  br label %21, !llvm.loop !11

42:                                               ; preds = %34
  %43 = landingpad { ptr, i32 }
          cleanup
  %44 = extractvalue { ptr, i32 } %43, 0
  store ptr %44, ptr %6, align 8
  %45 = extractvalue { ptr, i32 } %43, 1
  store i32 %45, ptr %7, align 4
  br label %122

46:                                               ; preds = %32
  %47 = load i32, ptr %1, align 4, !tbaa !5
  %48 = sext i32 %47 to i64
  %49 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @z) #4
  %50 = icmp ult i64 %48, %49
  br i1 %50, label %51, label %81

51:                                               ; preds = %46
  %52 = load i32, ptr %1, align 4, !tbaa !5
  %53 = sext i32 %52 to i64
  %54 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @z, i64 noundef %53) #4
  %55 = getelementptr inbounds %"struct.std::pair", ptr %54, i32 0, i32 0
  %56 = load i32, ptr %55, align 4, !tbaa !9
  %57 = load i32, ptr %3, align 4, !tbaa !5
  %58 = icmp eq i32 %56, %57
  br i1 %58, label %59, label %81

59:                                               ; preds = %51
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %60 = load i32, ptr %1, align 4, !tbaa !5
  %61 = sext i32 %60 to i64
  %62 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @z, i64 noundef %61) #4
  %63 = getelementptr inbounds %"struct.std::pair", ptr %62, i32 0, i32 1
  %64 = load i32, ptr %1, align 4, !tbaa !5
  %65 = sext i32 %64 to i64
  %66 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @z, i64 noundef %65) #4
  %67 = getelementptr inbounds %"struct.std::pair", ptr %66, i32 0, i32 0
  invoke void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %9, ptr noundef nonnull align 4 dereferenceable(4) %63, ptr noundef nonnull align 4 dereferenceable(4) %67)
          to label %68 unwind label %77

68:                                               ; preds = %59
  %69 = invoke { ptr, i8 } @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE6insertEOS1_(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 4 dereferenceable(8) %9)
          to label %70 unwind label %77

70:                                               ; preds = %68
  %71 = getelementptr inbounds { ptr, i8 }, ptr %10, i32 0, i32 0
  %72 = extractvalue { ptr, i8 } %69, 0
  store ptr %72, ptr %71, align 8
  %73 = getelementptr inbounds { ptr, i8 }, ptr %10, i32 0, i32 1
  %74 = extractvalue { ptr, i8 } %69, 1
  store i8 %74, ptr %73, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  %75 = load i32, ptr %1, align 4, !tbaa !5
  %76 = add nsw i32 %75, 1
  store i32 %76, ptr %1, align 4, !tbaa !5
  br label %81

77:                                               ; preds = %68, %59
  %78 = landingpad { ptr, i32 }
          cleanup
  %79 = extractvalue { ptr, i32 } %78, 0
  store ptr %79, ptr %6, align 8
  %80 = extractvalue { ptr, i32 } %78, 1
  store i32 %80, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  br label %122

81:                                               ; preds = %70, %51, %46
  %82 = call noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  %83 = icmp ne i64 %82, 0
  br i1 %83, label %84, label %110

84:                                               ; preds = %81
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  %85 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  %86 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %11, i32 0, i32 0
  store ptr %85, ptr %86, align 8
  %87 = call noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #4
  %88 = getelementptr inbounds %"struct.std::pair", ptr %87, i32 0, i32 0
  %89 = load i32, ptr %88, align 4, !tbaa !9
  %90 = load i32, ptr %3, align 4, !tbaa !5
  %91 = sext i32 %90 to i64
  %92 = getelementptr inbounds [200002 x i32], ptr @mn, i64 0, i64 %91
  store i32 %89, ptr %92, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #4
  %93 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  %94 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %13, i32 0, i32 0
  store ptr %93, ptr %94, align 8
  %95 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %13, i32 0, i32 0
  %96 = load ptr, ptr %95, align 8
  %97 = invoke ptr @_ZSt4prevISt23_Rb_tree_const_iteratorISt4pairIiiEEET_S4_NSt15iterator_traitsIS4_E15difference_typeE(ptr %96, i64 noundef 1)
          to label %98 unwind label %106

98:                                               ; preds = %84
  %99 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %12, i32 0, i32 0
  store ptr %97, ptr %99, align 8
  %100 = call noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %12) #4
  %101 = getelementptr inbounds %"struct.std::pair", ptr %100, i32 0, i32 0
  %102 = load i32, ptr %101, align 4, !tbaa !9
  %103 = load i32, ptr %3, align 4, !tbaa !5
  %104 = sext i32 %103 to i64
  %105 = getelementptr inbounds [200002 x i32], ptr @mx, i64 0, i64 %104
  store i32 %102, ptr %105, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  br label %118

106:                                              ; preds = %84
  %107 = landingpad { ptr, i32 }
          cleanup
  %108 = extractvalue { ptr, i32 } %107, 0
  store ptr %108, ptr %6, align 8
  %109 = extractvalue { ptr, i32 } %107, 1
  store i32 %109, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  br label %122

110:                                              ; preds = %81
  %111 = load i32, ptr %3, align 4, !tbaa !5
  %112 = sext i32 %111 to i64
  %113 = getelementptr inbounds [200002 x i32], ptr @mn, i64 0, i64 %112
  store i32 1000000007, ptr %113, align 4, !tbaa !5
  %114 = load i32, ptr %3, align 4, !tbaa !5
  %115 = load i32, ptr %3, align 4, !tbaa !5
  %116 = sext i32 %115 to i64
  %117 = getelementptr inbounds [200002 x i32], ptr @mx, i64 0, i64 %116
  store i32 %114, ptr %117, align 4, !tbaa !5
  br label %118

118:                                              ; preds = %110, %98
  br label %119

119:                                              ; preds = %118
  %120 = load i32, ptr %3, align 4, !tbaa !5
  %121 = add nsw i32 %120, 1
  store i32 %121, ptr %3, align 4, !tbaa !5
  br label %14, !llvm.loop !13

122:                                              ; preds = %106, %77, %42
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  call void @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  call void @llvm.lifetime.end.p0(i64 48, ptr %2) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #4
  br label %124

123:                                              ; preds = %19
  call void @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #4
  call void @llvm.lifetime.end.p0(i64 48, ptr %2) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #4
  ret void

124:                                              ; preds = %122
  %125 = load ptr, ptr %6, align 8
  %126 = load i32, ptr %7, align 4
  %127 = insertvalue { ptr, i32 } poison, ptr %125, 0
  %128 = insertvalue { ptr, i32 } %127, i32 %126, 1
  resume { ptr, i32 } %128
}

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 #4 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<int, int>, std::allocator<std::pair<int, int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int>>, std::less<std::pair<int, int>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::pair<int, int>, std::pair<int, int>, std::_Identity<std::pair<int, int>>, std::less<std::pair<int, int>>>::_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 }
%"struct.std::pair" = type { i32, i32 }

@N = external dso_local local_unnamed_addr global i32, align 4
@mn = external dso_local local_unnamed_addr global [200002 x i32], align 16
@mx = external dso_local local_unnamed_addr global [200002 x i32], align 16
@z = external dso_local global %"class.std::vector", align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #0 align 2

; 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 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 i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIS1_E(ptr noundef nonnull align 8 dereferenceable(48), ptr) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local ptr @_ZSt4prevISt23_Rb_tree_const_iteratorISt4pairIiiEEET_S4_NSt15iterator_traitsIS4_E15difference_typeE(ptr, i64 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE6insertEOS1_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5againv() local_unnamed_addr #2 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::pair", align 4
  %4 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %5 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %1) #4
  call void @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %1) #4
  %6 = load i32, ptr @N, align 4, !tbaa !5
  %.not25 = icmp slt i32 %6, 1
  br i1 %.not25, label %._crit_edge, label %.preheader

.preheader:                                       ; preds = %0, %56
  %indvars.iv = phi i64 [ %indvars.iv.next, %56 ], [ 1, %0 ]
  %.027 = phi i32 [ %.1, %56 ], [ 0, %0 ]
  br label %7

._crit_edge:                                      ; preds = %56, %0
  call void @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %1) #4
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %1) #4
  ret void

7:                                                ; preds = %.preheader, %15
  %8 = call noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %1) #4
  %.not22 = icmp eq i64 %8, 0
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  br i1 %.not22, label %.critedge, label %9

9:                                                ; preds = %7
  %10 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %1) #4
  store ptr %10, ptr %2, align 8
  %11 = call noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #4
  %12 = load i32, ptr %11, align 4, !tbaa !9
  %13 = sext i32 %12 to i64
  %14 = icmp sgt i64 %indvars.iv, %13
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  br i1 %14, label %15, label %.loopexit

15:                                               ; preds = %9
  %16 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %1) #4
  %17 = invoke ptr @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5eraseB5cxx11ESt23_Rb_tree_const_iteratorIS1_E(ptr noundef nonnull align 8 dereferenceable(48) %1, ptr %16)
          to label %7 unwind label %18, !llvm.loop !11

18:                                               ; preds = %15
  %19 = landingpad { ptr, i32 }
          cleanup
  br label %59

.critedge:                                        ; preds = %7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  br label %.loopexit

.loopexit:                                        ; preds = %9, %.critedge
  %20 = sext i32 %.027 to i64
  %21 = call noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) @z) #4
  %22 = icmp ugt i64 %21, %20
  br i1 %22, label %23, label %37

23:                                               ; preds = %.loopexit
  %24 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @z, i64 noundef %20) #4
  %25 = load i32, ptr %24, align 4, !tbaa !9
  %26 = zext i32 %25 to i64
  %27 = icmp eq i64 %indvars.iv, %26
  br i1 %27, label %28, label %37

28:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %29 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @z, i64 noundef %20) #4
  %30 = getelementptr inbounds i8, ptr %29, i64 4
  %31 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @z, i64 noundef %20) #4
  call void @_ZNSt4pairIiiEC2IRiS2_TnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS4_S5_EEEbE4typeELb1EEEOS4_OS5_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(4) %30, ptr noundef nonnull align 4 dereferenceable(4) %31)
  %32 = invoke { ptr, i8 } @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE6insertEOS1_(ptr noundef nonnull align 8 dereferenceable(48) %1, ptr noundef nonnull align 4 dereferenceable(8) %3)
          to label %33 unwind label %35

33:                                               ; preds = %28
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  %34 = add nsw i32 %.027, 1
  br label %37

35:                                               ; preds = %28
  %36 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  br label %59

37:                                               ; preds = %33, %23, %.loopexit
  %.1 = phi i32 [ %34, %33 ], [ %.027, %23 ], [ %.027, %.loopexit ]
  %38 = call noundef i64 @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %1) #4
  %.not23 = icmp eq i64 %38, 0
  br i1 %.not23, label %52, label %39

39:                                               ; preds = %37
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %40 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %1) #4
  store ptr %40, ptr %4, align 8
  %41 = call noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #4
  %42 = load i32, ptr %41, align 4, !tbaa !9
  %43 = getelementptr inbounds [200002 x i32], ptr @mn, i64 0, i64 %indvars.iv
  store i32 %42, ptr %43, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %44 = call ptr @_ZNKSt3setISt4pairIiiESt4lessIS1_ESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %1) #4
  %45 = invoke ptr @_ZSt4prevISt23_Rb_tree_const_iteratorISt4pairIiiEEET_S4_NSt15iterator_traitsIS4_E15difference_typeE(ptr %44, i64 noundef 1)
          to label %46 unwind label %50

46:                                               ; preds = %39
  store ptr %45, ptr %5, align 8
  %47 = call noundef ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairIiiEEptEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  %48 = load i32, ptr %47, align 4, !tbaa !9
  %49 = getelementptr inbounds [200002 x i32], ptr @mx, i64 0, i64 %indvars.iv
  store i32 %48, ptr %49, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  br label %56

50:                                               ; preds = %39
  %51 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  br label %59

52:                                               ; preds = %37
  %53 = getelementptr inbounds [200002 x i32], ptr @mn, i64 0, i64 %indvars.iv
  store i32 1000000007, ptr %53, align 4, !tbaa !5
  %54 = getelementptr inbounds [200002 x i32], ptr @mx, i64 0, i64 %indvars.iv
  %55 = trunc nuw nsw i64 %indvars.iv to i32
  store i32 %55, ptr %54, align 4, !tbaa !5
  br label %56

56:                                               ; preds = %46, %52
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %57 = load i32, ptr @N, align 4, !tbaa !5
  %58 = sext i32 %57 to i64
  %.not.not = icmp slt i64 %indvars.iv, %58
  br i1 %.not.not, label %.preheader, label %._crit_edge, !llvm.loop !13

59:                                               ; preds = %50, %35, %18
  %.pn = phi { ptr, i32 } [ %19, %18 ], [ %51, %50 ], [ %36, %35 ]
  call void @_ZNSt3setISt4pairIiiESt4lessIS1_ESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %1) #4
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %1) #4
  resume { ptr, i32 } %.pn
}

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorISt4pairIiiESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorISt4pairIiiESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 #4 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTSSt4pairIiiE", !6, i64 0, !6, i64 4}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


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