; LLVM IR from xirc/cp-algorithm :: aoj/ALDS1/ALDS7C/main.ll (Z12resolve_rootv)

; 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<Node, std::allocator<Node>>::_Vector_impl" }
%"struct.std::_Vector_base<Node, std::allocator<Node>>::_Vector_impl" = type { %"struct.std::_Vector_base<Node, std::allocator<Node>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Node, std::allocator<Node>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = 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::allocator.4" = type { i8 }
%"struct.std::_Bit_reference" = type { ptr, i64 }
%struct.Node = type { i32, i32 }

@N = external dso_local global i32, align 4
@nodes = external dso_local global %"class.std::vector", align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z12resolve_rootv() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::vector.0", align 8
  %3 = alloca i8, align 1
  %4 = alloca %"class.std::allocator.4", align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca %"struct.std::_Bit_reference", align 8
  %11 = alloca %"struct.std::_Bit_reference", align 8
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca %"struct.std::_Bit_reference", align 8
  call void @llvm.lifetime.start.p0(i64 40, ptr %2) #3
  %15 = load i32, ptr @N, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #3
  store i8 0, ptr %3, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #3
  call void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #3
  invoke void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40) %2, i64 noundef %16, ptr noundef nonnull align 1 dereferenceable(1) %3, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %17 unwind label %23

17:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %18

18:                                               ; preds = %72, %17
  %19 = load i32, ptr %7, align 4, !tbaa !5
  %20 = load i32, ptr @N, align 4, !tbaa !5
  %21 = icmp slt i32 %19, %20
  br i1 %21, label %27, label %22

22:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %76

23:                                               ; preds = %0
  %24 = landingpad { ptr, i32 }
          cleanup
  %25 = extractvalue { ptr, i32 } %24, 0
  store ptr %25, ptr %5, align 8
  %26 = extractvalue { ptr, i32 } %24, 1
  store i32 %26, ptr %6, align 4
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #3
  br label %109

27:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %28 = load i32, ptr %7, align 4, !tbaa !5
  %29 = sext i32 %28 to i64
  %30 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorI4NodeSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @nodes, i64 noundef %29) #3
  %31 = getelementptr inbounds %struct.Node, ptr %30, i32 0, i32 0
  %32 = load i32, ptr %31, align 4, !tbaa !11
  store i32 %32, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %33 = load i32, ptr %7, align 4, !tbaa !5
  %34 = sext i32 %33 to i64
  %35 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorI4NodeSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @nodes, i64 noundef %34) #3
  %36 = getelementptr inbounds %struct.Node, ptr %35, i32 0, i32 1
  %37 = load i32, ptr %36, align 4, !tbaa !13
  store i32 %37, ptr %9, align 4, !tbaa !5
  %38 = load i32, ptr %8, align 4, !tbaa !5
  %39 = icmp ne i32 %38, -1
  br i1 %39, label %40, label %54

40:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 16, ptr %10) #3
  %41 = load i32, ptr %8, align 4, !tbaa !5
  %42 = sext i32 %41 to i64
  %43 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %2, i64 noundef %42)
          to label %44 unwind label %50

44:                                               ; preds = %40
  %45 = getelementptr inbounds { ptr, i64 }, ptr %10, i32 0, i32 0
  %46 = extractvalue { ptr, i64 } %43, 0
  store ptr %46, ptr %45, align 8
  %47 = getelementptr inbounds { ptr, i64 }, ptr %10, i32 0, i32 1
  %48 = extractvalue { ptr, i64 } %43, 1
  store i64 %48, ptr %47, align 8
  %49 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %10, i1 noundef zeroext true) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr %10) #3
  br label %54

50:                                               ; preds = %40
  %51 = landingpad { ptr, i32 }
          cleanup
  %52 = extractvalue { ptr, i32 } %51, 0
  store ptr %52, ptr %5, align 8
  %53 = extractvalue { ptr, i32 } %51, 1
  store i32 %53, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %10) #3
  br label %75

54:                                               ; preds = %44, %27
  %55 = load i32, ptr %9, align 4, !tbaa !5
  %56 = icmp ne i32 %55, -1
  br i1 %56, label %57, label %71

57:                                               ; preds = %54
  call void @llvm.lifetime.start.p0(i64 16, ptr %11) #3
  %58 = load i32, ptr %9, align 4, !tbaa !5
  %59 = sext i32 %58 to i64
  %60 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %2, i64 noundef %59)
          to label %61 unwind label %67

61:                                               ; preds = %57
  %62 = getelementptr inbounds { ptr, i64 }, ptr %11, i32 0, i32 0
  %63 = extractvalue { ptr, i64 } %60, 0
  store ptr %63, ptr %62, align 8
  %64 = getelementptr inbounds { ptr, i64 }, ptr %11, i32 0, i32 1
  %65 = extractvalue { ptr, i64 } %60, 1
  store i64 %65, ptr %64, align 8
  %66 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %11, i1 noundef zeroext true) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr %11) #3
  br label %71

67:                                               ; preds = %57
  %68 = landingpad { ptr, i32 }
          cleanup
  %69 = extractvalue { ptr, i32 } %68, 0
  store ptr %69, ptr %5, align 8
  %70 = extractvalue { ptr, i32 } %68, 1
  store i32 %70, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %11) #3
  br label %75

71:                                               ; preds = %61, %54
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  br label %72

72:                                               ; preds = %71
  %73 = load i32, ptr %7, align 4, !tbaa !5
  %74 = add nsw i32 %73, 1
  store i32 %74, ptr %7, align 4, !tbaa !5
  br label %18, !llvm.loop !14

75:                                               ; preds = %67, %50
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %108

76:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  store i32 0, ptr %12, align 4, !tbaa !5
  br label %77

77:                                               ; preds = %100, %76
  %78 = load i32, ptr %12, align 4, !tbaa !5
  %79 = load i32, ptr @N, align 4, !tbaa !5
  %80 = icmp slt i32 %78, %79
  br i1 %80, label %82, label %81

81:                                               ; preds = %77
  store i32 5, ptr %13, align 4
  br label %103

82:                                               ; preds = %77
  call void @llvm.lifetime.start.p0(i64 16, ptr %14) #3
  %83 = load i32, ptr %12, align 4, !tbaa !5
  %84 = sext i32 %83 to i64
  %85 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %2, i64 noundef %84)
          to label %86 unwind label %95

86:                                               ; preds = %82
  %87 = getelementptr inbounds { ptr, i64 }, ptr %14, i32 0, i32 0
  %88 = extractvalue { ptr, i64 } %85, 0
  store ptr %88, ptr %87, align 8
  %89 = getelementptr inbounds { ptr, i64 }, ptr %14, i32 0, i32 1
  %90 = extractvalue { ptr, i64 } %85, 1
  store i64 %90, ptr %89, align 8
  %91 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %14) #3
  %92 = xor i1 %91, true
  call void @llvm.lifetime.end.p0(i64 16, ptr %14) #3
  br i1 %92, label %93, label %99

93:                                               ; preds = %86
  %94 = load i32, ptr %12, align 4, !tbaa !5
  store i32 %94, ptr %1, align 4
  store i32 1, ptr %13, align 4
  br label %103

95:                                               ; preds = %82
  %96 = landingpad { ptr, i32 }
          cleanup
  %97 = extractvalue { ptr, i32 } %96, 0
  store ptr %97, ptr %5, align 8
  %98 = extractvalue { ptr, i32 } %96, 1
  store i32 %98, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %14) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  br label %108

99:                                               ; preds = %86
  br label %100

100:                                              ; preds = %99
  %101 = load i32, ptr %12, align 4, !tbaa !5
  %102 = add nsw i32 %101, 1
  store i32 %102, ptr %12, align 4, !tbaa !5
  br label %77, !llvm.loop !16

103:                                              ; preds = %93, %81
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  %104 = load i32, ptr %13, align 4
  switch i32 %104, label %106 [
    i32 5, label %105
  ]

105:                                              ; preds = %103
  store i32 -1, ptr %1, align 4
  store i32 1, ptr %13, align 4
  br label %106

106:                                              ; preds = %105, %103
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %2) #3
  call void @llvm.lifetime.end.p0(i64 40, ptr %2) #3
  %107 = load i32, ptr %1, align 4
  ret i32 %107

108:                                              ; preds = %95, %75
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %2) #3
  br label %109

109:                                              ; preds = %108, %23
  call void @llvm.lifetime.end.p0(i64 40, ptr %2) #3
  br label %110

110:                                              ; preds = %109
  %111 = load ptr, ptr %5, align 8
  %112 = load i32, ptr %6, align 4
  %113 = insertvalue { ptr, i32 } poison, ptr %111, 0
  %114 = insertvalue { ptr, i32 } %113, i32 %112, 1
  resume { ptr, i32 } %114
}

; 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 @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; 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 nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorI4NodeSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) #0 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 zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40)) 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 = !{!10, !10, i64 0}
!10 = !{!"bool", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTS4Node", !6, i64 0, !6, i64 4}
!13 = !{!12, !6, i64 4}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = distinct !{!16, !15}


; 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<Node, std::allocator<Node>>::_Vector_impl" }
%"struct.std::_Vector_base<Node, std::allocator<Node>>::_Vector_impl" = type { %"struct.std::_Vector_base<Node, std::allocator<Node>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Node, std::allocator<Node>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.0" = 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::allocator.4" = type { i8 }
%"struct.std::_Bit_reference" = type { ptr, i64 }

@N = external dso_local local_unnamed_addr global i32, align 4
@nodes = external dso_local global %"class.std::vector", align 8

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z12resolve_rootv() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::vector.0", align 8
  %2 = alloca i8, align 1
  %3 = alloca %"class.std::allocator.4", align 1
  %4 = alloca %"struct.std::_Bit_reference", align 8
  %5 = alloca %"struct.std::_Bit_reference", align 8
  %6 = alloca %"struct.std::_Bit_reference", align 8
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %1) #3
  %7 = load i32, ptr @N, align 4, !tbaa !5
  %8 = sext i32 %7 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %2) #3
  store i8 0, ptr %2, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #3
  call void @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #3
  invoke void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40) %1, i64 noundef %8, ptr noundef nonnull align 1 dereferenceable(1) %2, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %9 unwind label %16

9:                                                ; preds = %0
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #3
  %10 = load i32, ptr @N, align 4, !tbaa !5
  %11 = icmp sgt i32 %10, 0
  br i1 %11, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %9
  %12 = getelementptr inbounds i8, ptr %4, i64 8
  %13 = getelementptr inbounds i8, ptr %5, i64 8
  br label %18

.preheader:                                       ; preds = %43
  %14 = icmp sgt i32 %44, 0
  br i1 %14, label %.lr.ph33, label %._crit_edge

.lr.ph33:                                         ; preds = %.preheader
  %15 = getelementptr inbounds i8, ptr %6, i64 8
  br label %47

16:                                               ; preds = %0
  %17 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #3
  br label %60

18:                                               ; preds = %.lr.ph, %43
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %43 ]
  %19 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorI4NodeSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @nodes, i64 noundef %indvars.iv) #3
  %20 = load i32, ptr %19, align 4, !tbaa !11
  %21 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorI4NodeSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) @nodes, i64 noundef %indvars.iv) #3
  %22 = getelementptr inbounds i8, ptr %21, i64 4
  %23 = load i32, ptr %22, align 4, !tbaa !13
  %.not25 = icmp eq i32 %20, -1
  br i1 %.not25, label %33, label %24

24:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %4) #3
  %25 = sext i32 %20 to i64
  %26 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %1, i64 noundef %25)
          to label %27 unwind label %31

27:                                               ; preds = %24
  %28 = extractvalue { ptr, i64 } %26, 0
  store ptr %28, ptr %4, align 8
  %29 = extractvalue { ptr, i64 } %26, 1
  store i64 %29, ptr %12, align 8
  %30 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %4, i1 noundef zeroext true) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #3
  br label %33

31:                                               ; preds = %24
  %32 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #3
  br label %59

33:                                               ; preds = %27, %18
  %.not26 = icmp eq i32 %23, -1
  br i1 %.not26, label %43, label %34

34:                                               ; preds = %33
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %5) #3
  %35 = sext i32 %23 to i64
  %36 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %1, i64 noundef %35)
          to label %37 unwind label %41

37:                                               ; preds = %34
  %38 = extractvalue { ptr, i64 } %36, 0
  store ptr %38, ptr %5, align 8
  %39 = extractvalue { ptr, i64 } %36, 1
  store i64 %39, ptr %13, align 8
  %40 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt14_Bit_referenceaSEb(ptr noundef nonnull align 8 dereferenceable(16) %5, i1 noundef zeroext true) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %5) #3
  br label %43

41:                                               ; preds = %34
  %42 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %5) #3
  br label %59

43:                                               ; preds = %37, %33
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %44 = load i32, ptr @N, align 4, !tbaa !5
  %45 = sext i32 %44 to i64
  %46 = icmp slt i64 %indvars.iv.next, %45
  br i1 %46, label %18, label %.preheader, !llvm.loop !14

47:                                               ; preds = %.lr.ph33, %55
  %indvars.iv37 = phi i64 [ 0, %.lr.ph33 ], [ %indvars.iv.next38, %55 ]
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %6) #3
  %48 = invoke { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40) %1, i64 noundef %indvars.iv37)
          to label %49 unwind label %53

49:                                               ; preds = %47
  %50 = extractvalue { ptr, i64 } %48, 0
  store ptr %50, ptr %6, align 8
  %51 = extractvalue { ptr, i64 } %48, 1
  store i64 %51, ptr %15, align 8
  %52 = call noundef zeroext i1 @_ZNKSt14_Bit_referencecvbEv(ptr noundef nonnull align 8 dereferenceable(16) %6) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #3
  br i1 %52, label %55, label %._crit_edge.loopexit.split.loop.exit

53:                                               ; preds = %47
  %54 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #3
  br label %59

55:                                               ; preds = %49
  %indvars.iv.next38 = add nuw nsw i64 %indvars.iv37, 1
  %56 = load i32, ptr @N, align 4, !tbaa !5
  %57 = sext i32 %56 to i64
  %.not = icmp slt i64 %indvars.iv.next38, %57
  br i1 %.not, label %47, label %._crit_edge, !llvm.loop !16

._crit_edge.loopexit.split.loop.exit:             ; preds = %49
  %58 = trunc nuw nsw i64 %indvars.iv37 to i32
  br label %._crit_edge

._crit_edge:                                      ; preds = %55, %._crit_edge.loopexit.split.loop.exit, %9, %.preheader
  %spec.select = phi i32 [ -1, %.preheader ], [ -1, %9 ], [ %58, %._crit_edge.loopexit.split.loop.exit ], [ -1, %55 ]
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %1) #3
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %1) #3
  ret i32 %spec.select

59:                                               ; preds = %31, %41, %53
  %.pn.pn = phi { ptr, i32 } [ %54, %53 ], [ %42, %41 ], [ %32, %31 ]
  call void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %1) #3
  br label %60

60:                                               ; preds = %59, %16
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %59 ], [ %17, %16 ]
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %1) #3
  resume { ptr, i32 } %.pn.pn.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 @_ZNSaIbEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIbSaIbEEC2EmRKbRKS0_(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIbED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; 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 nonnull align 4 dereferenceable(8) ptr @_ZNSt6vectorI4NodeSaIS0_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i64 } @_ZNSt6vectorIbSaIbEEixEm(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) local_unnamed_addr #0 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 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 void @_ZNSt13_Bvector_baseISaIbEED2Ev(ptr noundef nonnull align 8 dereferenceable(40)) 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 = !{!10, !10, i64 0}
!10 = !{!"bool", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTS4Node", !6, i64 0, !6, i64 4}
!13 = !{!12, !6, i64 4}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = distinct !{!16, !15}


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