; LLVM IR from the-hyp0cr1t3/CC :: CSES/Tree Algorithms (Tree Diameter)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%class.anon = type { ptr, ptr }
%"struct.std::pair" = type <{ i64, i32, [4 x i8] }>

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca %"class.std::allocator", align 1
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca %class.anon, align 8
  %11 = alloca %"struct.std::pair", align 8
  %12 = alloca %"struct.std::pair", align 8
  %13 = alloca { i64, i32 }, align 8
  %14 = alloca { i64, i32 }, align 8
  store i32 0, ptr %1, align 4
  %15 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %16 = getelementptr i8, ptr %15, i64 -24
  %17 = load i64, ptr %16, align 8
  %18 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %17
  %19 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %18, ptr noundef null)
  %20 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  %21 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @llvm.lifetime.start.p0(i64 24, ptr %4) #7
  %22 = load i32, ptr %3, align 4, !tbaa !8
  %23 = sext i32 %22 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #7
  call void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #7
  invoke void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %23, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %24 unwind label %52

24:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #7
  store i32 0, ptr %2, align 4, !tbaa !8
  br label %25

25:                                               ; preds = %49, %24
  %26 = load i32, ptr %2, align 4, !tbaa !8
  %27 = load i32, ptr %3, align 4, !tbaa !8
  %28 = sub nsw i32 %27, 1
  %29 = icmp slt i32 %26, %28
  br i1 %29, label %30, label %60

30:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #7
  %31 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %32 unwind label %56

32:                                               ; preds = %30
  %33 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %31, ptr noundef nonnull align 4 dereferenceable(4) %9)
          to label %34 unwind label %56

34:                                               ; preds = %32
  %35 = load i32, ptr %8, align 4, !tbaa !8
  %36 = add nsw i32 %35, -1
  store i32 %36, ptr %8, align 4, !tbaa !8
  %37 = load i32, ptr %9, align 4, !tbaa !8
  %38 = add nsw i32 %37, -1
  store i32 %38, ptr %9, align 4, !tbaa !8
  %39 = load i32, ptr %8, align 4, !tbaa !8
  %40 = sext i32 %39 to i64
  %41 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %40) #7
  %42 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEE12emplace_backIJRiEEES3_DpOT_(ptr noundef nonnull align 8 dereferenceable(24) %41, ptr noundef nonnull align 4 dereferenceable(4) %9)
          to label %43 unwind label %56

43:                                               ; preds = %34
  %44 = load i32, ptr %9, align 4, !tbaa !8
  %45 = sext i32 %44 to i64
  %46 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %45) #7
  %47 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEE12emplace_backIJRiEEES3_DpOT_(ptr noundef nonnull align 8 dereferenceable(24) %46, ptr noundef nonnull align 4 dereferenceable(4) %8)
          to label %48 unwind label %56

48:                                               ; preds = %43
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %49

49:                                               ; preds = %48
  %50 = load i32, ptr %2, align 4, !tbaa !8
  %51 = add nsw i32 %50, 1
  store i32 %51, ptr %2, align 4, !tbaa !8
  br label %25, !llvm.loop !11

52:                                               ; preds = %0
  %53 = landingpad { ptr, i32 }
          cleanup
  %54 = extractvalue { ptr, i32 } %53, 0
  store ptr %54, ptr %6, align 8
  %55 = extractvalue { ptr, i32 } %53, 1
  store i32 %55, ptr %7, align 4
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #7
  br label %80

56:                                               ; preds = %43, %34, %32, %30
  %57 = landingpad { ptr, i32 }
          cleanup
  %58 = extractvalue { ptr, i32 } %57, 0
  store ptr %58, ptr %6, align 8
  %59 = extractvalue { ptr, i32 } %57, 1
  store i32 %59, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %79

60:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 16, ptr %10) #7
  %61 = getelementptr inbounds %class.anon, ptr %10, i32 0, i32 0
  store ptr %3, ptr %61, align 8, !tbaa !13
  %62 = getelementptr inbounds %class.anon, ptr %10, i32 0, i32 1
  store ptr %4, ptr %62, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 16, ptr %11) #7
  call void @llvm.lifetime.start.p0(i64 16, ptr %12) #7
  %63 = invoke { i64, i32 } @"_ZZ4mainENK3$_0clEi"(ptr noundef nonnull align 8 dereferenceable(16) %10, i32 noundef 0)
          to label %64 unwind label %75

64:                                               ; preds = %60
  store { i64, i32 } %63, ptr %13, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %12, ptr align 8 %13, i64 12, i1 false)
  %65 = getelementptr inbounds %"struct.std::pair", ptr %12, i32 0, i32 0
  %66 = load i64, ptr %65, align 8, !tbaa !15
  %67 = trunc i64 %66 to i32
  %68 = invoke { i64, i32 } @"_ZZ4mainENK3$_0clEi"(ptr noundef nonnull align 8 dereferenceable(16) %10, i32 noundef %67)
          to label %69 unwind label %75

69:                                               ; preds = %64
  store { i64, i32 } %68, ptr %14, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %11, ptr align 8 %14, i64 12, i1 false)
  %70 = getelementptr inbounds %"struct.std::pair", ptr %11, i32 0, i32 1
  %71 = load i32, ptr %70, align 8, !tbaa !18
  %72 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %71)
          to label %73 unwind label %75

73:                                               ; preds = %69
  call void @llvm.lifetime.end.p0(i64 16, ptr %12) #7
  call void @llvm.lifetime.end.p0(i64 16, ptr %11) #7
  call void @llvm.lifetime.end.p0(i64 16, ptr %10) #7
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  %74 = load i32, ptr %1, align 4
  ret i32 %74

75:                                               ; preds = %69, %64, %60
  %76 = landingpad { ptr, i32 }
          cleanup
  %77 = extractvalue { ptr, i32 } %76, 0
  store ptr %77, ptr %6, align 8
  %78 = extractvalue { ptr, i32 } %76, 1
  store i32 %78, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %12) #7
  call void @llvm.lifetime.end.p0(i64 16, ptr %11) #7
  call void @llvm.lifetime.end.p0(i64 16, ptr %10) #7
  br label %79

79:                                               ; preds = %75, %56
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #7
  br label %80

80:                                               ; preds = %79, %52
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %81

81:                                               ; preds = %80
  %82 = load ptr, ptr %6, align 8
  %83 = load i32, ptr %7, align 4
  %84 = insertvalue { ptr, i32 } poison, ptr %82, 0
  %85 = insertvalue { ptr, i32 } %84, i32 %83, 1
  resume { ptr, i32 } %85
}

; 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 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) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEE12emplace_backIJRiEEES3_DpOT_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #4 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2

; Function Attrs: inlinehint mustprogress uwtable
declare hidden { i64, i32 } @"_ZZ4mainENK3$_0clEi"(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) #5 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #6

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !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 = !{!16, !17, i64 0}
!16 = !{!"_ZTSSt4pairIliE", !17, i64 0, !9, i64 8}
!17 = !{!"long", !10, i64 0}
!18 = !{!16, !9, i64 8}


; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%class.anon = type { ptr, ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::vector", align 8
  %3 = alloca %"class.std::allocator", align 1
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca %class.anon, align 8
  %7 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %8 = getelementptr i8, ptr %7, i64 -24
  %9 = load i64, ptr %8, align 8
  %10 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %9
  %11 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %10, ptr noundef null)
  %12 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #6
  %13 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #6
  %14 = load i32, ptr %1, align 4, !tbaa !8
  %15 = sext i32 %14 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #6
  call void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  invoke void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %15, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %16 unwind label %40

16:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #6
  %17 = load i32, ptr %1, align 4, !tbaa !8
  %18 = icmp sgt i32 %17, 1
  br i1 %18, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %16, %35
  %.016 = phi i32 [ %36, %35 ], [ 0, %16 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #6
  %19 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %20 unwind label %42

20:                                               ; preds = %.lr.ph
  %21 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %19, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %22 unwind label %42

22:                                               ; preds = %20
  %23 = load i32, ptr %4, align 4, !tbaa !8
  %24 = add nsw i32 %23, -1
  store i32 %24, ptr %4, align 4, !tbaa !8
  %25 = load i32, ptr %5, align 4, !tbaa !8
  %26 = add nsw i32 %25, -1
  store i32 %26, ptr %5, align 4, !tbaa !8
  %27 = sext i32 %24 to i64
  %28 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %27) #6
  %29 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEE12emplace_backIJRiEEES3_DpOT_(ptr noundef nonnull align 8 dereferenceable(24) %28, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %30 unwind label %42

30:                                               ; preds = %22
  %31 = load i32, ptr %5, align 4, !tbaa !8
  %32 = sext i32 %31 to i64
  %33 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %32) #6
  %34 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEE12emplace_backIJRiEEES3_DpOT_(ptr noundef nonnull align 8 dereferenceable(24) %33, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %35 unwind label %42

35:                                               ; preds = %30
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #6
  %36 = add nuw nsw i32 %.016, 1
  %37 = load i32, ptr %1, align 4, !tbaa !8
  %38 = add nsw i32 %37, -1
  %39 = icmp slt i32 %36, %38
  br i1 %39, label %.lr.ph, label %._crit_edge, !llvm.loop !11

40:                                               ; preds = %0
  %41 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #6
  br label %55

42:                                               ; preds = %30, %22, %20, %.lr.ph
  %43 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #6
  br label %54

._crit_edge:                                      ; preds = %35, %16
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %6) #6
  store ptr %1, ptr %6, align 8, !tbaa !13
  %44 = getelementptr inbounds i8, ptr %6, i64 8
  store ptr %2, ptr %44, align 8, !tbaa !13
  %45 = invoke { i64, i32 } @"_ZZ4mainENK3$_0clEi"(ptr noundef nonnull align 8 dereferenceable(16) %6, i32 noundef 0)
          to label %46 unwind label %52

46:                                               ; preds = %._crit_edge
  %.fca.0.extract1 = extractvalue { i64, i32 } %45, 0
  %47 = trunc i64 %.fca.0.extract1 to i32
  %48 = invoke { i64, i32 } @"_ZZ4mainENK3$_0clEi"(ptr noundef nonnull align 8 dereferenceable(16) %6, i32 noundef %47)
          to label %49 unwind label %52

49:                                               ; preds = %46
  %.fca.1.extract = extractvalue { i64, i32 } %48, 1
  %50 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.fca.1.extract)
          to label %51 unwind label %52

51:                                               ; preds = %49
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #6
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  ret i32 0

52:                                               ; preds = %49, %46, %._crit_edge
  %53 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #6
  br label %54

54:                                               ; preds = %52, %42
  %.pn = phi { ptr, i32 } [ %43, %42 ], [ %53, %52 ]
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  br label %55

55:                                               ; preds = %54, %40
  %.pn.pn = phi { ptr, i32 } [ %.pn, %54 ], [ %41, %40 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn.pn
}

; 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt6vectorIiSaIiEEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 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) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEE12emplace_backIJRiEEES3_DpOT_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress uwtable
declare hidden { i64, i32 } @"_ZZ4mainENK3$_0clEi"(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 = !{!"int", !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}


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