; LLVM IR from xirc/cp-algorithm :: atcoder/abc098/B/main.ll (Z10count_samei)

; 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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<char, char, std::_Identity<char>, std::less<char>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<char, char, std::_Identity<char>, std::less<char>>::_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 }

@N = external dso_local global i32, align 4
@_Z1SB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z10count_samei(i32 noundef %0) #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::set", align 8
  %5 = alloca %"class.std::set", align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca %"struct.std::pair", align 8
  %10 = alloca i32, align 4
  %11 = alloca %"struct.std::pair", align 8
  %12 = alloca ptr, align 8
  %13 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %14 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %15 = alloca i8, align 1
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 48, ptr %4) #3
  call void @_ZNSt3setIcSt4lessIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #3
  call void @llvm.lifetime.start.p0(i64 48, ptr %5) #3
  call void @_ZNSt3setIcSt4lessIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %5) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %16

16:                                               ; preds = %32, %1
  %17 = load i32, ptr %6, align 4, !tbaa !5
  %18 = load i32, ptr %2, align 4, !tbaa !5
  %19 = icmp slt i32 %17, %18
  br i1 %19, label %21, label %20

20:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  br label %39

21:                                               ; preds = %16
  %22 = load i32, ptr %6, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1SB5cxx11, i64 noundef %23)
          to label %25 unwind label %35

25:                                               ; preds = %21
  %26 = invoke { ptr, i8 } @_ZNSt3setIcSt4lessIcESaIcEE6insertERKc(ptr noundef nonnull align 8 dereferenceable(48) %4, ptr noundef nonnull align 1 dereferenceable(1) %24)
          to label %27 unwind label %35

27:                                               ; preds = %25
  %28 = getelementptr inbounds { ptr, i8 }, ptr %9, i32 0, i32 0
  %29 = extractvalue { ptr, i8 } %26, 0
  store ptr %29, ptr %28, align 8
  %30 = getelementptr inbounds { ptr, i8 }, ptr %9, i32 0, i32 1
  %31 = extractvalue { ptr, i8 } %26, 1
  store i8 %31, ptr %30, align 8
  br label %32

32:                                               ; preds = %27
  %33 = load i32, ptr %6, align 4, !tbaa !5
  %34 = add nsw i32 %33, 1
  store i32 %34, ptr %6, align 4, !tbaa !5
  br label %16, !llvm.loop !9

35:                                               ; preds = %25, %21
  %36 = landingpad { ptr, i32 }
          cleanup
  %37 = extractvalue { ptr, i32 } %36, 0
  store ptr %37, ptr %7, align 8
  %38 = extractvalue { ptr, i32 } %36, 1
  store i32 %38, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  br label %92

39:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  %40 = load i32, ptr %2, align 4, !tbaa !5
  store i32 %40, ptr %10, align 4, !tbaa !5
  br label %41

41:                                               ; preds = %57, %39
  %42 = load i32, ptr %10, align 4, !tbaa !5
  %43 = load i32, ptr @N, align 4, !tbaa !5
  %44 = icmp slt i32 %42, %43
  br i1 %44, label %46, label %45

45:                                               ; preds = %41
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  br label %64

46:                                               ; preds = %41
  %47 = load i32, ptr %10, align 4, !tbaa !5
  %48 = sext i32 %47 to i64
  %49 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1SB5cxx11, i64 noundef %48)
          to label %50 unwind label %60

50:                                               ; preds = %46
  %51 = invoke { ptr, i8 } @_ZNSt3setIcSt4lessIcESaIcEE6insertERKc(ptr noundef nonnull align 8 dereferenceable(48) %5, ptr noundef nonnull align 1 dereferenceable(1) %49)
          to label %52 unwind label %60

52:                                               ; preds = %50
  %53 = getelementptr inbounds { ptr, i8 }, ptr %11, i32 0, i32 0
  %54 = extractvalue { ptr, i8 } %51, 0
  store ptr %54, ptr %53, align 8
  %55 = getelementptr inbounds { ptr, i8 }, ptr %11, i32 0, i32 1
  %56 = extractvalue { ptr, i8 } %51, 1
  store i8 %56, ptr %55, align 8
  br label %57

57:                                               ; preds = %52
  %58 = load i32, ptr %10, align 4, !tbaa !5
  %59 = add nsw i32 %58, 1
  store i32 %59, ptr %10, align 4, !tbaa !5
  br label %41, !llvm.loop !11

60:                                               ; preds = %50, %46
  %61 = landingpad { ptr, i32 }
          cleanup
  %62 = extractvalue { ptr, i32 } %61, 0
  store ptr %62, ptr %7, align 8
  %63 = extractvalue { ptr, i32 } %61, 1
  store i32 %63, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  br label %92

64:                                               ; preds = %45
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #3
  store ptr %4, ptr %12, align 8, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #3
  %65 = load ptr, ptr %12, align 8, !tbaa !12
  %66 = call ptr @_ZNKSt3setIcSt4lessIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %65) #3
  %67 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %13, i32 0, i32 0
  store ptr %66, ptr %67, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #3
  %68 = load ptr, ptr %12, align 8, !tbaa !12
  %69 = call ptr @_ZNKSt3setIcSt4lessIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %68) #3
  %70 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %14, i32 0, i32 0
  store ptr %69, ptr %70, align 8
  br label %71

71:                                               ; preds = %88, %64
  %72 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIcES2_(ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef nonnull align 8 dereferenceable(8) %14) #3
  br i1 %72, label %74, label %73

73:                                               ; preds = %71
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #3
  br label %90

74:                                               ; preds = %71
  call void @llvm.lifetime.start.p0(i64 1, ptr %15) #3
  %75 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt23_Rb_tree_const_iteratorIcEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %13) #3
  %76 = load i8, ptr %75, align 1, !tbaa !14
  store i8 %76, ptr %15, align 1, !tbaa !14
  %77 = invoke noundef i64 @_ZNKSt3setIcSt4lessIcESaIcEE5countERKc(ptr noundef nonnull align 8 dereferenceable(48) %5, ptr noundef nonnull align 1 dereferenceable(1) %15)
          to label %78 unwind label %83

78:                                               ; preds = %74
  %79 = icmp ne i64 %77, 0
  br i1 %79, label %80, label %87

80:                                               ; preds = %78
  %81 = load i32, ptr %3, align 4, !tbaa !5
  %82 = add nsw i32 %81, 1
  store i32 %82, ptr %3, align 4, !tbaa !5
  br label %87

83:                                               ; preds = %74
  %84 = landingpad { ptr, i32 }
          cleanup
  %85 = extractvalue { ptr, i32 } %84, 0
  store ptr %85, ptr %7, align 8
  %86 = extractvalue { ptr, i32 } %84, 1
  store i32 %86, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %15) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #3
  br label %92

87:                                               ; preds = %80, %78
  call void @llvm.lifetime.end.p0(i64 1, ptr %15) #3
  br label %88

88:                                               ; preds = %87
  %89 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIcEppEv(ptr noundef nonnull align 8 dereferenceable(8) %13) #3
  br label %71

90:                                               ; preds = %73
  %91 = load i32, ptr %3, align 4, !tbaa !5
  call void @_ZNSt3setIcSt4lessIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %5) #3
  call void @llvm.lifetime.end.p0(i64 48, ptr %5) #3
  call void @_ZNSt3setIcSt4lessIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #3
  call void @llvm.lifetime.end.p0(i64 48, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret i32 %91

92:                                               ; preds = %83, %60, %35
  call void @_ZNSt3setIcSt4lessIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %5) #3
  call void @llvm.lifetime.end.p0(i64 48, ptr %5) #3
  call void @_ZNSt3setIcSt4lessIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #3
  call void @llvm.lifetime.end.p0(i64 48, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  br label %93

93:                                               ; preds = %92
  %94 = load ptr, ptr %7, align 8
  %95 = load i32, ptr %8, align 4
  %96 = insertvalue { ptr, i32 } poison, ptr %94, 0
  %97 = insertvalue { ptr, i32 } %96, i32 %95, 1
  resume { ptr, i32 } %97
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIcSt4lessIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIcSt4lessIcESaIcEE6insertERKc(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 1 dereferenceable(1)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #2 align 2

declare i32 @__gxx_personality_v0(...)

; 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 ptr @_ZNKSt3setIcSt4lessIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIcSt4lessIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIcES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt23_Rb_tree_const_iteratorIcEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNKSt3setIcSt4lessIcESaIcEE5countERKc(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 1 dereferenceable(1)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIcEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIcSt4lessIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

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

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = !{!13, !13, i64 0}
!13 = !{!"any pointer", !7, i64 0}
!14 = !{!7, !7, i64 0}


; 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::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<char, char, std::_Identity<char>, std::less<char>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<char, char, std::_Identity<char>, std::less<char>>::_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 }

@N = external dso_local local_unnamed_addr global i32, align 4
@_Z1SB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z10count_samei(i32 noundef %0) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::set", align 8
  %3 = alloca %"class.std::set", align 8
  %4 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %5 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %6 = alloca i8, align 1
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %2) #3
  call void @_ZNSt3setIcSt4lessIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #3
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %3) #3
  call void @_ZNSt3setIcSt4lessIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #3
  %7 = icmp sgt i32 %0, 0
  br i1 %7, label %.lr.ph.preheader, label %.preheader

.lr.ph.preheader:                                 ; preds = %1
  %wide.trip.count = zext nneg i32 %0 to i64
  br label %.lr.ph

.preheader:                                       ; preds = %13, %1
  %8 = load i32, ptr @N, align 4, !tbaa !5
  %9 = icmp sgt i32 %8, %0
  br i1 %9, label %.lr.ph24.preheader, label %._crit_edge

.lr.ph24.preheader:                               ; preds = %.preheader
  %10 = sext i32 %0 to i64
  br label %.lr.ph24

.lr.ph:                                           ; preds = %.lr.ph.preheader, %13
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %13 ]
  %11 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1SB5cxx11, i64 noundef %indvars.iv)
  %12 = invoke { ptr, i8 } @_ZNSt3setIcSt4lessIcESaIcEE6insertERKc(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 1 dereferenceable(1) %11)
          to label %13 unwind label %14

13:                                               ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %.preheader, label %.lr.ph, !llvm.loop !9

14:                                               ; preds = %.lr.ph
  %15 = landingpad { ptr, i32 }
          cleanup
  br label %36

._crit_edge:                                      ; preds = %21, %.preheader
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %16 = call ptr @_ZNKSt3setIcSt4lessIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #3
  store ptr %16, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #3
  %17 = call ptr @_ZNKSt3setIcSt4lessIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %2) #3
  store ptr %17, ptr %5, align 8
  %18 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIcES2_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #3
  br i1 %18, label %.lr.ph27, label %._crit_edge28

.lr.ph24:                                         ; preds = %.lr.ph24.preheader, %21
  %indvars.iv30 = phi i64 [ %10, %.lr.ph24.preheader ], [ %indvars.iv.next31, %21 ]
  %19 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1SB5cxx11, i64 noundef %indvars.iv30)
  %20 = invoke { ptr, i8 } @_ZNSt3setIcSt4lessIcESaIcEE6insertERKc(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 1 dereferenceable(1) %19)
          to label %21 unwind label %25

21:                                               ; preds = %.lr.ph24
  %indvars.iv.next31 = add nsw i64 %indvars.iv30, 1
  %22 = load i32, ptr @N, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = icmp slt i64 %indvars.iv.next31, %23
  br i1 %24, label %.lr.ph24, label %._crit_edge, !llvm.loop !11

25:                                               ; preds = %.lr.ph24
  %26 = landingpad { ptr, i32 }
          cleanup
  br label %36

._crit_edge28:                                    ; preds = %30, %._crit_edge
  %.0.lcssa = phi i32 [ 0, %._crit_edge ], [ %spec.select, %30 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  call void @_ZNSt3setIcSt4lessIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #3
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %3) #3
  call void @_ZNSt3setIcSt4lessIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #3
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %2) #3
  ret i32 %.0.lcssa

.lr.ph27:                                         ; preds = %._crit_edge, %30
  %.025 = phi i32 [ %spec.select, %30 ], [ 0, %._crit_edge ]
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #3
  %27 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt23_Rb_tree_const_iteratorIcEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #3
  %28 = load i8, ptr %27, align 1, !tbaa !12
  store i8 %28, ptr %6, align 1, !tbaa !12
  %29 = invoke noundef i64 @_ZNKSt3setIcSt4lessIcESaIcEE5countERKc(ptr noundef nonnull align 8 dereferenceable(48) %3, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %30 unwind label %34

30:                                               ; preds = %.lr.ph27
  %.not = icmp ne i64 %29, 0
  %31 = zext i1 %.not to i32
  %spec.select = add nuw nsw i32 %.025, %31
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #3
  %32 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIcEppEv(ptr noundef nonnull align 8 dereferenceable(8) %4) #3
  %33 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIcES2_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5) #3
  br i1 %33, label %.lr.ph27, label %._crit_edge28

34:                                               ; preds = %.lr.ph27
  %35 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  br label %36

36:                                               ; preds = %34, %25, %14
  %.pn = phi { ptr, i32 } [ %15, %14 ], [ %26, %25 ], [ %35, %34 ]
  call void @_ZNSt3setIcSt4lessIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %3) #3
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %3) #3
  call void @_ZNSt3setIcSt4lessIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #3
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %2) #3
  resume { ptr, i32 } %.pn
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIcSt4lessIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIcSt4lessIcESaIcEE6insertERKc(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; 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 ptr @_ZNKSt3setIcSt4lessIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIcSt4lessIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIcES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNKSt23_Rb_tree_const_iteratorIcEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNKSt3setIcSt4lessIcESaIcEE5countERKc(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorIcEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIcSt4lessIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #2 align 2

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

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

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


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