; LLVM IR from DionysiosB/CodeForces :: 0500-0599/510C-FoxAndNames.ll (Z3dfsi)

; 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::_Bvector_base" }
%"struct.std::_Bvector_base" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" = type { %"struct.std::_Bit_iterator", %"struct.std::_Bit_iterator", ptr }
%"struct.std::_Bit_iterator" = type { %"struct.std::_Bit_iterator_base.base", [4 x i8] }
%"struct.std::_Bit_iterator_base.base" = type <{ ptr, i32 }>
%"class.std::vector.3" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<char, std::allocator<char>>::_Vector_impl" }
%"struct.std::_Vector_base<char, std::allocator<char>>::_Vector_impl" = type { %"struct.std::_Vector_base<char, std::allocator<char>>::_Vector_impl_data" }
%"struct.std::_Vector_base<char, std::allocator<char>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.7" = type { %"struct.std::_Vector_base.8" }
%"struct.std::_Vector_base.8" = 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 }
%"struct.std::_Bit_reference" = type { ptr, i64 }

@visited = external dso_local global %"class.std::vector", align 8
@inpath = external dso_local global %"class.std::vector", align 8
@sequence = external dso_local global %"class.std::vector.3", align 8
@previous = external dso_local global %"class.std::vector.7", align 8
@.str = external hidden unnamed_addr constant [11 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3dfsi(i32 noundef %0) #1 {
  %2 = alloca i32, align 4
  %3 = alloca %"struct.std::_Bit_reference", align 8
  %4 = alloca %"struct.std::_Bit_reference", align 8
  %5 = alloca %"struct.std::_Bit_reference", align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca %"struct.std::_Bit_reference", align 8
  %9 = alloca %"struct.std::_Bit_reference", align 8
  %10 = alloca %"struct.std::_Bit_reference", align 8
  %11 = alloca i8, align 1
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 16, ptr %3) #5
  %12 = load i32, ptr %2, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = call { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) @visited, i64 noundef %13)
  %15 = getelementptr inbounds { ptr, i64 }, ptr %3, i32 0, i32 0
  %16 = extractvalue { ptr, i64 } %14, 0
  store ptr %16, ptr %15, align 8
  %17 = getelementptr inbounds { ptr, i64 }, ptr %3, i32 0, i32 1
  %18 = extractvalue { ptr, i64 } %14, 1
  store i64 %18, ptr %17, align 8
  %19 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %3) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %3) #5
  br i1 %19, label %20, label %21

20:                                               ; preds = %1
  br label %94

21:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 16, ptr %4) #5
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = call { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) @visited, i64 noundef %23)
  %25 = getelementptr inbounds { ptr, i64 }, ptr %4, i32 0, i32 0
  %26 = extractvalue { ptr, i64 } %24, 0
  store ptr %26, ptr %25, align 8
  %27 = getelementptr inbounds { ptr, i64 }, ptr %4, i32 0, i32 1
  %28 = extractvalue { ptr, i64 } %24, 1
  store i64 %28, ptr %27, align 8
  %29 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %4, i1 noundef zeroext true) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %4) #5
  call void @llvm.lifetime.start.p0(i64 16, ptr %5) #5
  %30 = load i32, ptr %2, align 4, !tbaa !5
  %31 = sext i32 %30 to i64
  %32 = call { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) @inpath, i64 noundef %31)
  %33 = getelementptr inbounds { ptr, i64 }, ptr %5, i32 0, i32 0
  %34 = extractvalue { ptr, i64 } %32, 0
  store ptr %34, ptr %33, align 8
  %35 = getelementptr inbounds { ptr, i64 }, ptr %5, i32 0, i32 1
  %36 = extractvalue { ptr, i64 } %32, 1
  store i64 %36, ptr %35, align 8
  %37 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %5, i1 noundef zeroext true) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %5) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %38

38:                                               ; preds = %79, %21
  %39 = load i32, ptr %6, align 4, !tbaa !5
  %40 = sext i32 %39 to i64
  %41 = load i32, ptr %2, align 4, !tbaa !5
  %42 = sext i32 %41 to i64
  %43 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @previous, i64 noundef %42) #5
  %44 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %43) #5
  %45 = icmp ult i64 %40, %44
  br i1 %45, label %47, label %46

46:                                               ; preds = %38
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  br label %82

47:                                               ; preds = %38
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  %48 = load i32, ptr %2, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @previous, i64 noundef %49) #5
  %51 = load i32, ptr %6, align 4, !tbaa !5
  %52 = sext i32 %51 to i64
  %53 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %50, i64 noundef %52) #5
  %54 = load i32, ptr %53, align 4, !tbaa !5
  store i32 %54, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 16, ptr %8) #5
  %55 = load i32, ptr %7, align 4, !tbaa !5
  %56 = sext i32 %55 to i64
  %57 = call { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) @inpath, i64 noundef %56)
  %58 = getelementptr inbounds { ptr, i64 }, ptr %8, i32 0, i32 0
  %59 = extractvalue { ptr, i64 } %57, 0
  store ptr %59, ptr %58, align 8
  %60 = getelementptr inbounds { ptr, i64 }, ptr %8, i32 0, i32 1
  %61 = extractvalue { ptr, i64 } %57, 1
  store i64 %61, ptr %60, align 8
  %62 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %8) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %8) #5
  br i1 %62, label %63, label %65

63:                                               ; preds = %47
  %64 = call i32 @puts(ptr noundef @.str)
  call void @exit(i32 noundef 0) #6
  unreachable

65:                                               ; preds = %47
  call void @llvm.lifetime.start.p0(i64 16, ptr %9) #5
  %66 = load i32, ptr %7, align 4, !tbaa !5
  %67 = sext i32 %66 to i64
  %68 = call { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) @visited, i64 noundef %67)
  %69 = getelementptr inbounds { ptr, i64 }, ptr %9, i32 0, i32 0
  %70 = extractvalue { ptr, i64 } %68, 0
  store ptr %70, ptr %69, align 8
  %71 = getelementptr inbounds { ptr, i64 }, ptr %9, i32 0, i32 1
  %72 = extractvalue { ptr, i64 } %68, 1
  store i64 %72, ptr %71, align 8
  %73 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %9) #5
  %74 = xor i1 %73, true
  call void @llvm.lifetime.end.p0(i64 16, ptr %9) #5
  br i1 %74, label %75, label %77

75:                                               ; preds = %65
  %76 = load i32, ptr %7, align 4, !tbaa !5
  call void @_Z3dfsi(i32 noundef %76)
  br label %77

77:                                               ; preds = %75, %65
  br label %78

78:                                               ; preds = %77
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  br label %79

79:                                               ; preds = %78
  %80 = load i32, ptr %6, align 4, !tbaa !5
  %81 = add nsw i32 %80, 1
  store i32 %81, ptr %6, align 4, !tbaa !5
  br label %38, !llvm.loop !9

82:                                               ; preds = %46
  call void @llvm.lifetime.start.p0(i64 16, ptr %10) #5
  %83 = load i32, ptr %2, align 4, !tbaa !5
  %84 = sext i32 %83 to i64
  %85 = call { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) @inpath, i64 noundef %84)
  %86 = getelementptr inbounds { ptr, i64 }, ptr %10, i32 0, i32 0
  %87 = extractvalue { ptr, i64 } %85, 0
  store ptr %87, ptr %86, align 8
  %88 = getelementptr inbounds { ptr, i64 }, ptr %10, i32 0, i32 1
  %89 = extractvalue { ptr, i64 } %85, 1
  store i64 %89, ptr %88, align 8
  %90 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %10, i1 noundef zeroext false) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %10) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr %11) #5
  %91 = load i32, ptr %2, align 4, !tbaa !5
  %92 = add nsw i32 97, %91
  %93 = trunc i32 %92 to i8
  store i8 %93, ptr %11, align 1, !tbaa !11
  call void @_ZNSt6vectorIcSaIcEE9push_backEOc(ptr noundef nonnull align 8 dereferenceable(24) @sequence, ptr noundef nonnull align 1 dereferenceable(1) %11)
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #5
  br label %94

94:                                               ; preds = %82, %20
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16), i1 noundef zeroext) #2 align 2

; 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) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

declare i32 @puts(ptr noundef) #3

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIcSaIcEE9push_backEOc(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 1 dereferenceable(1)) #1 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { "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 = { noreturn nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }
attributes #6 = { noreturn 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 = !{!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::vector" = type { %"struct.std::_Bvector_base" }
%"struct.std::_Bvector_base" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl" = type { %"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" }
%"struct.std::_Bvector_base<std::allocator<bool>>::_Bvector_impl_data" = type { %"struct.std::_Bit_iterator", %"struct.std::_Bit_iterator", ptr }
%"struct.std::_Bit_iterator" = type { %"struct.std::_Bit_iterator_base.base", [4 x i8] }
%"struct.std::_Bit_iterator_base.base" = type <{ ptr, i32 }>
%"class.std::vector.3" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<char, std::allocator<char>>::_Vector_impl" }
%"struct.std::_Vector_base<char, std::allocator<char>>::_Vector_impl" = type { %"struct.std::_Vector_base<char, std::allocator<char>>::_Vector_impl_data" }
%"struct.std::_Vector_base<char, std::allocator<char>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.7" = type { %"struct.std::_Vector_base.8" }
%"struct.std::_Vector_base.8" = 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 }
%"struct.std::_Bit_reference" = type { ptr, i64 }

@visited = external dso_local global %"class.std::vector", align 8
@inpath = external dso_local global %"class.std::vector", align 8
@sequence = external dso_local global %"class.std::vector.3", align 8
@previous = external dso_local global %"class.std::vector.7", align 8
@.str = external hidden unnamed_addr constant [11 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3dfsi(i32 noundef %0) local_unnamed_addr #1 {
  %2 = alloca %"struct.std::_Bit_reference", align 8
  %3 = alloca %"struct.std::_Bit_reference", align 8
  %4 = alloca %"struct.std::_Bit_reference", align 8
  %5 = alloca %"struct.std::_Bit_reference", align 8
  %6 = alloca %"struct.std::_Bit_reference", align 8
  %7 = alloca %"struct.std::_Bit_reference", align 8
  %8 = alloca i8, align 1
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %2) #5
  %9 = sext i32 %0 to i64
  %10 = tail call { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) @visited, i64 noundef %9)
  %11 = extractvalue { ptr, i64 } %10, 0
  store ptr %11, ptr %2, align 8
  %12 = getelementptr inbounds i8, ptr %2, i64 8
  %13 = extractvalue { ptr, i64 } %10, 1
  store i64 %13, ptr %12, align 8
  %14 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %2) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %2) #5
  br i1 %14, label %58, label %15

15:                                               ; preds = %1
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #5
  %16 = call { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) @visited, i64 noundef %9)
  %17 = extractvalue { ptr, i64 } %16, 0
  store ptr %17, ptr %3, align 8
  %18 = getelementptr inbounds i8, ptr %3, i64 8
  %19 = extractvalue { ptr, i64 } %16, 1
  store i64 %19, ptr %18, align 8
  %20 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %3, i1 noundef zeroext true) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #5
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %4) #5
  %21 = call { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) @inpath, i64 noundef %9)
  %22 = extractvalue { ptr, i64 } %21, 0
  store ptr %22, ptr %4, align 8
  %23 = getelementptr inbounds i8, ptr %4, i64 8
  %24 = extractvalue { ptr, i64 } %21, 1
  store i64 %24, ptr %23, align 8
  %25 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %4, i1 noundef zeroext true) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #5
  %26 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @previous, i64 noundef %9) #5
  %27 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %26) #5
  %.not = icmp eq i64 %27, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %15
  %28 = getelementptr inbounds i8, ptr %5, i64 8
  %29 = getelementptr inbounds i8, ptr %6, i64 8
  br label %37

._crit_edge:                                      ; preds = %54, %15
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %7) #5
  %30 = call { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) @inpath, i64 noundef %9)
  %31 = extractvalue { ptr, i64 } %30, 0
  store ptr %31, ptr %7, align 8
  %32 = getelementptr inbounds i8, ptr %7, i64 8
  %33 = extractvalue { ptr, i64 } %30, 1
  store i64 %33, ptr %32, align 8
  %34 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %7, i1 noundef zeroext false) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %7) #5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %8) #5
  %35 = trunc i32 %0 to i8
  %36 = add i8 %35, 97
  store i8 %36, ptr %8, align 1, !tbaa !5
  call void @_ZNSt6vectorIcSaIcEE9push_backEOc(ptr noundef nonnull align 8 dereferenceable(24) @sequence, ptr noundef nonnull align 1 dereferenceable(1) %8)
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %8) #5
  br label %58

37:                                               ; preds = %.lr.ph, %54
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %54 ]
  %38 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @previous, i64 noundef %9) #5
  %39 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %38, i64 noundef %indvars.iv) #5
  %40 = load i32, ptr %39, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %5) #5
  %41 = sext i32 %40 to i64
  %42 = call { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) @inpath, i64 noundef %41)
  %43 = extractvalue { ptr, i64 } %42, 0
  store ptr %43, ptr %5, align 8
  %44 = extractvalue { ptr, i64 } %42, 1
  store i64 %44, ptr %28, align 8
  %45 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %5) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %5) #5
  br i1 %45, label %46, label %48

46:                                               ; preds = %37
  %47 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str)
  call void @exit(i32 noundef 0) #6
  unreachable

48:                                               ; preds = %37
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %6) #5
  %49 = call { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) @visited, i64 noundef %41)
  %50 = extractvalue { ptr, i64 } %49, 0
  store ptr %50, ptr %6, align 8
  %51 = extractvalue { ptr, i64 } %49, 1
  store i64 %51, ptr %29, align 8
  %52 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %6) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #5
  br i1 %52, label %54, label %53

53:                                               ; preds = %48
  call void @_Z3dfsi(i32 noundef %40)
  br label %54

54:                                               ; preds = %48, %53
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %55 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNSt6vectorIS_IiSaIiEESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @previous, i64 noundef %9) #5
  %56 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %55) #5
  %57 = icmp ugt i64 %56, %indvars.iv.next
  br i1 %57, label %37, label %._crit_edge, !llvm.loop !10

58:                                               ; preds = %1, %._crit_edge
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16), i1 noundef zeroext) local_unnamed_addr #2 align 2

; 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 #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: nofree nounwind
declare noundef i32 @puts(ptr nocapture noundef readonly) local_unnamed_addr #3

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIcSaIcEE9push_backEOc(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #1 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { nofree nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { noreturn nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { nounwind }
attributes #6 = { noreturn 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !6, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


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