; LLVM IR from xirc/cp-algorithm :: atcoder/abc098/C/main.ll (Z5solvev)

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

@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 @_Z5solvev() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::vector", align 8
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::allocator.0", align 1
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %"class.std::vector", align 8
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::allocator.0", align 1
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 24, ptr %1) #4
  %16 = load i32, ptr @N, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #4
  store i32 0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %3) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #4
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %17, ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %18 unwind label %27

18:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #4
  %19 = load i32, ptr @N, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  store i32 0, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #4
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %20, ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %21 unwind label %31

21:                                               ; preds = %18
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  store i32 0, ptr %9, align 4, !tbaa !5
  br label %22

22:                                               ; preds = %66, %21
  %23 = load i32, ptr %9, align 4, !tbaa !5
  %24 = load i32, ptr @N, align 4, !tbaa !5
  %25 = icmp slt i32 %23, %24
  br i1 %25, label %35, label %26

26:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  br label %69

27:                                               ; preds = %0
  %28 = landingpad { ptr, i32 }
          cleanup
  %29 = extractvalue { ptr, i32 } %28, 0
  store ptr %29, ptr %4, align 8
  %30 = extractvalue { ptr, i32 } %28, 1
  store i32 %30, ptr %5, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #4
  br label %162

31:                                               ; preds = %18
  %32 = landingpad { ptr, i32 }
          cleanup
  %33 = extractvalue { ptr, i32 } %32, 0
  store ptr %33, ptr %4, align 8
  %34 = extractvalue { ptr, i32 } %32, 1
  store i32 %34, ptr %5, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  br label %161

35:                                               ; preds = %22
  %36 = load i32, ptr %9, align 4, !tbaa !5
  %37 = icmp sgt i32 %36, 0
  br i1 %37, label %38, label %47

38:                                               ; preds = %35
  %39 = load i32, ptr %9, align 4, !tbaa !5
  %40 = sub nsw i32 %39, 1
  %41 = sext i32 %40 to i64
  %42 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %41) #4
  %43 = load i32, ptr %42, align 4, !tbaa !5
  %44 = load i32, ptr %9, align 4, !tbaa !5
  %45 = sext i32 %44 to i64
  %46 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %45) #4
  store i32 %43, ptr %46, align 4, !tbaa !5
  br label %47

47:                                               ; preds = %38, %35
  %48 = load i32, ptr %9, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1SB5cxx11, i64 noundef %49)
          to label %51 unwind label %61

51:                                               ; preds = %47
  %52 = load i8, ptr %50, align 1, !tbaa !9
  %53 = sext i8 %52 to i32
  %54 = icmp eq i32 %53, 87
  br i1 %54, label %55, label %65

55:                                               ; preds = %51
  %56 = load i32, ptr %9, align 4, !tbaa !5
  %57 = sext i32 %56 to i64
  %58 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %57) #4
  %59 = load i32, ptr %58, align 4, !tbaa !5
  %60 = add nsw i32 %59, 1
  store i32 %60, ptr %58, align 4, !tbaa !5
  br label %65

61:                                               ; preds = %47
  %62 = landingpad { ptr, i32 }
          cleanup
  %63 = extractvalue { ptr, i32 } %62, 0
  store ptr %63, ptr %4, align 8
  %64 = extractvalue { ptr, i32 } %62, 1
  store i32 %64, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  br label %160

65:                                               ; preds = %55, %51
  br label %66

66:                                               ; preds = %65
  %67 = load i32, ptr %9, align 4, !tbaa !5
  %68 = add nsw i32 %67, 1
  store i32 %68, ptr %9, align 4, !tbaa !5
  br label %22, !llvm.loop !10

69:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  %70 = load i32, ptr @N, align 4, !tbaa !5
  %71 = sub nsw i32 %70, 1
  store i32 %71, ptr %10, align 4, !tbaa !5
  br label %72

72:                                               ; preds = %109, %69
  %73 = load i32, ptr %10, align 4, !tbaa !5
  %74 = icmp sge i32 %73, 0
  br i1 %74, label %76, label %75

75:                                               ; preds = %72
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  br label %112

76:                                               ; preds = %72
  %77 = load i32, ptr %10, align 4, !tbaa !5
  %78 = load i32, ptr @N, align 4, !tbaa !5
  %79 = sub nsw i32 %78, 1
  %80 = icmp slt i32 %77, %79
  br i1 %80, label %81, label %90

81:                                               ; preds = %76
  %82 = load i32, ptr %10, align 4, !tbaa !5
  %83 = add nsw i32 %82, 1
  %84 = sext i32 %83 to i64
  %85 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %84) #4
  %86 = load i32, ptr %85, align 4, !tbaa !5
  %87 = load i32, ptr %10, align 4, !tbaa !5
  %88 = sext i32 %87 to i64
  %89 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %88) #4
  store i32 %86, ptr %89, align 4, !tbaa !5
  br label %90

90:                                               ; preds = %81, %76
  %91 = load i32, ptr %10, align 4, !tbaa !5
  %92 = sext i32 %91 to i64
  %93 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1SB5cxx11, i64 noundef %92)
          to label %94 unwind label %104

94:                                               ; preds = %90
  %95 = load i8, ptr %93, align 1, !tbaa !9
  %96 = sext i8 %95 to i32
  %97 = icmp eq i32 %96, 69
  br i1 %97, label %98, label %108

98:                                               ; preds = %94
  %99 = load i32, ptr %10, align 4, !tbaa !5
  %100 = sext i32 %99 to i64
  %101 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %100) #4
  %102 = load i32, ptr %101, align 4, !tbaa !5
  %103 = add nsw i32 %102, 1
  store i32 %103, ptr %101, align 4, !tbaa !5
  br label %108

104:                                              ; preds = %90
  %105 = landingpad { ptr, i32 }
          cleanup
  %106 = extractvalue { ptr, i32 } %105, 0
  store ptr %106, ptr %4, align 8
  %107 = extractvalue { ptr, i32 } %105, 1
  store i32 %107, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  br label %160

108:                                              ; preds = %98, %94
  br label %109

109:                                              ; preds = %108
  %110 = load i32, ptr %10, align 4, !tbaa !5
  %111 = add nsw i32 %110, -1
  store i32 %111, ptr %10, align 4, !tbaa !5
  br label %72, !llvm.loop !12

112:                                              ; preds = %75
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #4
  %113 = load i32, ptr @N, align 4, !tbaa !5
  store i32 %113, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #4
  store i32 0, ptr %12, align 4, !tbaa !5
  br label %114

114:                                              ; preds = %151, %112
  %115 = load i32, ptr %12, align 4, !tbaa !5
  %116 = load i32, ptr @N, align 4, !tbaa !5
  %117 = icmp slt i32 %115, %116
  br i1 %117, label %119, label %118

118:                                              ; preds = %114
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  br label %158

119:                                              ; preds = %114
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #4
  %120 = load i32, ptr %12, align 4, !tbaa !5
  %121 = sub nsw i32 %120, 1
  %122 = icmp sge i32 %121, 0
  br i1 %122, label %123, label %129

123:                                              ; preds = %119
  %124 = load i32, ptr %12, align 4, !tbaa !5
  %125 = sub nsw i32 %124, 1
  %126 = sext i32 %125 to i64
  %127 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %126) #4
  %128 = load i32, ptr %127, align 4, !tbaa !5
  br label %130

129:                                              ; preds = %119
  br label %130

130:                                              ; preds = %129, %123
  %131 = phi i32 [ %128, %123 ], [ 0, %129 ]
  store i32 %131, ptr %13, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #4
  %132 = load i32, ptr %12, align 4, !tbaa !5
  %133 = add nsw i32 %132, 1
  %134 = load i32, ptr @N, align 4, !tbaa !5
  %135 = icmp slt i32 %133, %134
  br i1 %135, label %136, label %142

136:                                              ; preds = %130
  %137 = load i32, ptr %12, align 4, !tbaa !5
  %138 = add nsw i32 %137, 1
  %139 = sext i32 %138 to i64
  %140 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %139) #4
  %141 = load i32, ptr %140, align 4, !tbaa !5
  br label %143

142:                                              ; preds = %130
  br label %143

143:                                              ; preds = %142, %136
  %144 = phi i32 [ %141, %136 ], [ 0, %142 ]
  store i32 %144, ptr %14, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #4
  %145 = load i32, ptr %13, align 4, !tbaa !5
  %146 = load i32, ptr %14, align 4, !tbaa !5
  %147 = add nsw i32 %145, %146
  store i32 %147, ptr %15, align 4, !tbaa !5
  %148 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %11, ptr noundef nonnull align 4 dereferenceable(4) %15)
          to label %149 unwind label %154

149:                                              ; preds = %143
  %150 = load i32, ptr %148, align 4, !tbaa !5
  store i32 %150, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  br label %151

151:                                              ; preds = %149
  %152 = load i32, ptr %12, align 4, !tbaa !5
  %153 = add nsw i32 %152, 1
  store i32 %153, ptr %12, align 4, !tbaa !5
  br label %114, !llvm.loop !13

154:                                              ; preds = %143
  %155 = landingpad { ptr, i32 }
          cleanup
  %156 = extractvalue { ptr, i32 } %155, 0
  store ptr %156, ptr %4, align 8
  %157 = extractvalue { ptr, i32 } %155, 1
  store i32 %157, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  br label %160

158:                                              ; preds = %118
  %159 = load i32, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %1) #4
  ret i32 %159

160:                                              ; preds = %154, %104, %61
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #4
  br label %161

161:                                              ; preds = %160, %31
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #4
  br label %162

162:                                              ; preds = %161, %27
  call void @llvm.lifetime.end.p0(i64 24, ptr %1) #4
  br label %163

163:                                              ; preds = %162
  %164 = load ptr, ptr %4, align 8
  %165 = load i32, ptr %5, align 4
  %166 = insertvalue { ptr, i32 } poison, ptr %164, 0
  %167 = insertvalue { ptr, i32 } %166, i32 %165, 1
  resume { ptr, i32 } %167
}

; 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 @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 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 noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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 = { inlinehint 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 #4 = { nounwind }

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

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


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

@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 @_Z5solvev() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::vector", align 8
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::allocator.0", align 1
  %4 = alloca %"class.std::vector", align 8
  %5 = alloca i32, align 4
  %6 = alloca %"class.std::allocator.0", align 1
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %1) #4
  %9 = load i32, ptr @N, align 4, !tbaa !5
  %10 = sext i32 %9 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  store i32 0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #4
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %10, ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %11 unwind label %29

11:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #4
  %12 = load i32, ptr @N, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #4
  store i32 0, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #4
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #4
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %13, ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %14 unwind label %31

14:                                               ; preds = %11
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #4
  %15 = load i32, ptr @N, align 4, !tbaa !5
  %16 = icmp sgt i32 %15, 0
  br i1 %16, label %.lr.ph.preheader, label %._crit_edge.thread

.lr.ph.preheader:                                 ; preds = %14
  %17 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1SB5cxx11, i64 noundef 0)
  %18 = load i8, ptr %17, align 1, !tbaa !9
  %19 = icmp eq i8 %18, 87
  br i1 %19, label %20, label %24

20:                                               ; preds = %.lr.ph.preheader
  %21 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef 0) #4
  %22 = load i32, ptr %21, align 4, !tbaa !5
  %23 = add nsw i32 %22, 1
  store i32 %23, ptr %21, align 4, !tbaa !5
  br label %24

24:                                               ; preds = %20, %.lr.ph.preheader
  %25 = load i32, ptr @N, align 4, !tbaa !5
  %26 = icmp sgt i32 %25, 1
  br i1 %26, label %.lr.ph.peel.next, label %.preheader

.preheader:                                       ; preds = %44, %24
  %.lcssa = phi i32 [ %25, %24 ], [ %45, %44 ]
  %27 = icmp sgt i32 %.lcssa, 0
  br i1 %27, label %.lr.ph36.preheader, label %._crit_edge.thread

.lr.ph36.preheader:                               ; preds = %.preheader
  %28 = zext nneg i32 %.lcssa to i64
  br label %.lr.ph36

29:                                               ; preds = %0
  %30 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  br label %92

31:                                               ; preds = %11
  %32 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #4
  br label %92

.lr.ph.peel.next:                                 ; preds = %24, %44
  %indvars.iv = phi i64 [ %indvars.iv.next, %44 ], [ 1, %24 ]
  %33 = add nsw i64 %indvars.iv, -1
  %34 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %33) #4
  %35 = load i32, ptr %34, align 4, !tbaa !5
  %36 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv) #4
  store i32 %35, ptr %36, align 4, !tbaa !5
  %37 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1SB5cxx11, i64 noundef %indvars.iv)
  %38 = load i8, ptr %37, align 1, !tbaa !9
  %39 = icmp eq i8 %38, 87
  br i1 %39, label %40, label %44

40:                                               ; preds = %.lr.ph.peel.next
  %41 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv) #4
  %42 = load i32, ptr %41, align 4, !tbaa !5
  %43 = add nsw i32 %42, 1
  store i32 %43, ptr %41, align 4, !tbaa !5
  br label %44

44:                                               ; preds = %.lr.ph.peel.next, %40
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %45 = load i32, ptr @N, align 4, !tbaa !5
  %46 = sext i32 %45 to i64
  %47 = icmp slt i64 %indvars.iv.next, %46
  br i1 %47, label %.lr.ph.peel.next, label %.preheader, !llvm.loop !10

._crit_edge.thread:                               ; preds = %.preheader, %14
  %.ph = phi i32 [ %.lcssa, %.preheader ], [ %15, %14 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #4
  br label %._crit_edge40

._crit_edge:                                      ; preds = %73
  %.pre = load i32, ptr @N, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #4
  store i32 %.pre, ptr %7, align 4, !tbaa !5
  %48 = icmp sgt i32 %.pre, 0
  br i1 %48, label %.lr.ph39.preheader, label %._crit_edge40

.lr.ph39.preheader:                               ; preds = %._crit_edge
  %.not = icmp eq i32 %.pre, 1
  br i1 %.not, label %52, label %49

49:                                               ; preds = %.lr.ph39.preheader
  %50 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef 1) #4
  %51 = load i32, ptr %50, align 4, !tbaa !5
  br label %52

52:                                               ; preds = %49, %.lr.ph39.preheader
  %53 = phi i32 [ %51, %49 ], [ 0, %.lr.ph39.preheader ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #4
  store i32 %53, ptr %8, align 4, !tbaa !5
  %54 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 4 dereferenceable(4) %8)
  %55 = load i32, ptr %54, align 4, !tbaa !5
  store i32 %55, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #4
  %56 = load i32, ptr @N, align 4, !tbaa !5
  %57 = icmp sgt i32 %56, 1
  br i1 %57, label %.lr.ph39.peel.next, label %._crit_edge40

.lr.ph36:                                         ; preds = %.lr.ph36.preheader, %73
  %indvars.iv44 = phi i64 [ %28, %.lr.ph36.preheader ], [ %indvars.iv.next45, %73 ]
  %indvars.iv.next45 = add nsw i64 %indvars.iv44, -1
  %58 = load i32, ptr @N, align 4, !tbaa !5
  %59 = sext i32 %58 to i64
  %60 = icmp slt i64 %indvars.iv44, %59
  br i1 %60, label %61, label %65

61:                                               ; preds = %.lr.ph36
  %62 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv44) #4
  %63 = load i32, ptr %62, align 4, !tbaa !5
  %64 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv.next45) #4
  store i32 %63, ptr %64, align 4, !tbaa !5
  br label %65

65:                                               ; preds = %61, %.lr.ph36
  %66 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1SB5cxx11, i64 noundef %indvars.iv.next45)
  %67 = load i8, ptr %66, align 1, !tbaa !9
  %68 = icmp eq i8 %67, 69
  br i1 %68, label %69, label %73

69:                                               ; preds = %65
  %70 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv.next45) #4
  %71 = load i32, ptr %70, align 4, !tbaa !5
  %72 = add nsw i32 %71, 1
  store i32 %72, ptr %70, align 4, !tbaa !5
  br label %73

73:                                               ; preds = %65, %69
  %74 = icmp ugt i64 %indvars.iv44, 1
  br i1 %74, label %.lr.ph36, label %._crit_edge, !llvm.loop !13

._crit_edge40:                                    ; preds = %84, %52, %._crit_edge.thread, %._crit_edge
  %75 = phi i32 [ %.pre, %._crit_edge ], [ %.ph, %._crit_edge.thread ], [ %55, %52 ], [ %88, %84 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %1) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #4
  ret i32 %75

.lr.ph39.peel.next:                               ; preds = %52, %84
  %indvars.iv47 = phi i64 [ %indvars.iv.next48, %84 ], [ 1, %52 ]
  %76 = add nsw i64 %indvars.iv47, -1
  %77 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %76) #4
  %78 = load i32, ptr %77, align 4, !tbaa !5
  %.pre51 = load i32, ptr @N, align 4, !tbaa !5
  %indvars.iv.next48 = add nuw nsw i64 %indvars.iv47, 1
  %79 = sext i32 %.pre51 to i64
  %80 = icmp slt i64 %indvars.iv.next48, %79
  br i1 %80, label %81, label %84

81:                                               ; preds = %.lr.ph39.peel.next
  %82 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %4, i64 noundef %indvars.iv.next48) #4
  %83 = load i32, ptr %82, align 4, !tbaa !5
  br label %84

84:                                               ; preds = %.lr.ph39.peel.next, %81
  %85 = phi i32 [ %83, %81 ], [ 0, %.lr.ph39.peel.next ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #4
  %86 = add nsw i32 %85, %78
  store i32 %86, ptr %8, align 4, !tbaa !5
  %87 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 4 dereferenceable(4) %8)
  %88 = load i32, ptr %87, align 4, !tbaa !5
  store i32 %88, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #4
  %89 = load i32, ptr @N, align 4, !tbaa !5
  %90 = sext i32 %89 to i64
  %91 = icmp slt i64 %indvars.iv.next48, %90
  br i1 %91, label %.lr.ph39.peel.next, label %._crit_edge40, !llvm.loop !14

92:                                               ; preds = %31, %29
  %.pn = phi { ptr, i32 } [ %32, %31 ], [ %30, %29 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %1) #4
  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 @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 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 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: 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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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 = { inlinehint 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 #4 = { nounwind }

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

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


; Effective O3 passes: BDCEPass,CorrelatedValuePropagationPass,DSEPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopFullUnrollPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SCCPPass,SROAPass,SimplifyCFGPass