; LLVM IR from eyangch/competitive-programming :: Codeforces/1451 (e1)

; 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_ostream" = type { ptr, %"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_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"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::allocator" = type { i8 }

@N = external dso_local global i32, align 4
@a = external dso_local global [65536 x i32], align 16
@rxor = external dso_local global i32, align 4
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z3qryNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef, i32 noundef, i32 noundef) #0

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #1

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

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5flushEv(ptr noundef nonnull align 8 dereferenceable(8)) #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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #4 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca %"class.std::allocator", align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca %"class.std::allocator", align 1
  %9 = alloca i32, align 4
  %10 = alloca %"class.std::__cxx11::basic_string", align 8
  %11 = alloca %"class.std::allocator", align 1
  %12 = alloca %"class.std::__cxx11::basic_string", align 8
  %13 = alloca %"class.std::allocator", align 1
  %14 = alloca i32, align 4
  %15 = alloca %"class.std::__cxx11::basic_string", align 8
  %16 = alloca %"class.std::allocator", align 1
  %17 = alloca i32, align 4
  %18 = alloca %"class.std::__cxx11::basic_string", align 8
  %19 = alloca %"class.std::allocator", align 1
  %20 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %21 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %22 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %23 = getelementptr i8, ptr %22, i64 -24
  %24 = load i64, ptr %23, align 8
  %25 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %24
  %26 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %25, ptr noundef null)
  %27 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @N)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %3, ptr noundef @.str.2, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %28 unwind label %75

28:                                               ; preds = %0
  %29 = invoke noundef i32 @_Z3qryNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef %3, i32 noundef 1, i32 noundef 2)
          to label %30 unwind label %79

30:                                               ; preds = %28
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %7, ptr noundef @.str.3, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %31 unwind label %83

31:                                               ; preds = %30
  %32 = invoke noundef i32 @_Z3qryNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef %7, i32 noundef 1, i32 noundef 2)
          to label %33 unwind label %87

33:                                               ; preds = %31
  %34 = shl i32 %32, 1
  %35 = add nsw i32 %29, %34
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #6
  store i32 %35, ptr %2, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr %11) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %10, ptr noundef @.str.2, ptr noundef nonnull align 1 dereferenceable(1) %11)
          to label %36 unwind label %94

36:                                               ; preds = %33
  %37 = invoke noundef i32 @_Z3qryNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef %10, i32 noundef 2, i32 noundef 3)
          to label %38 unwind label %98

38:                                               ; preds = %36
  call void @llvm.lifetime.start.p0(i64 1, ptr %13) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %12, ptr noundef @.str.3, ptr noundef nonnull align 1 dereferenceable(1) %13)
          to label %39 unwind label %102

39:                                               ; preds = %38
  %40 = invoke noundef i32 @_Z3qryNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef %12, i32 noundef 2, i32 noundef 3)
          to label %41 unwind label %106

41:                                               ; preds = %39
  %42 = shl i32 %40, 1
  %43 = add nsw i32 %37, %42
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %13) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #6
  store i32 %43, ptr %9, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #6
  %44 = load i32, ptr @rxor, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 1, ptr %16) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %15, ptr noundef @.str.3, ptr noundef nonnull align 1 dereferenceable(1) %16)
          to label %45 unwind label %113

45:                                               ; preds = %41
  %46 = invoke noundef i32 @_Z3qryNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef %15, i32 noundef 1, i32 noundef 3)
          to label %47 unwind label %117

47:                                               ; preds = %45
  %48 = shl i32 %46, 1
  %49 = add nsw i32 %44, %48
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %15) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %16) #6
  store i32 %49, ptr %14, align 4, !tbaa !8
  %50 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5flushEv(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout)
  %51 = load i32, ptr %2, align 4, !tbaa !8
  %52 = load i32, ptr %9, align 4, !tbaa !8
  %53 = sub nsw i32 %51, %52
  %54 = load i32, ptr %14, align 4, !tbaa !8
  %55 = add nsw i32 %53, %54
  %56 = sdiv i32 %55, 2
  store i32 %56, ptr @a, align 16, !tbaa !8
  %57 = load i32, ptr %2, align 4, !tbaa !8
  %58 = load i32, ptr %9, align 4, !tbaa !8
  %59 = add nsw i32 %57, %58
  %60 = load i32, ptr %14, align 4, !tbaa !8
  %61 = sub nsw i32 %59, %60
  %62 = sdiv i32 %61, 2
  store i32 %62, ptr getelementptr inbounds ([65536 x i32], ptr @a, i64 0, i64 1), align 4, !tbaa !8
  %63 = load i32, ptr %2, align 4, !tbaa !8
  %64 = sub nsw i32 0, %63
  %65 = load i32, ptr %9, align 4, !tbaa !8
  %66 = add nsw i32 %64, %65
  %67 = load i32, ptr %14, align 4, !tbaa !8
  %68 = add nsw i32 %66, %67
  %69 = sdiv i32 %68, 2
  store i32 %69, ptr getelementptr inbounds ([65536 x i32], ptr @a, i64 0, i64 2), align 8, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #6
  store i32 3, ptr %17, align 4, !tbaa !8
  br label %70

70:                                               ; preds = %138, %47
  %71 = load i32, ptr %17, align 4, !tbaa !8
  %72 = load i32, ptr @N, align 4, !tbaa !8
  %73 = icmp slt i32 %71, %72
  br i1 %73, label %122, label %74

74:                                               ; preds = %70
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #6
  br label %150

75:                                               ; preds = %0
  %76 = landingpad { ptr, i32 }
          cleanup
  %77 = extractvalue { ptr, i32 } %76, 0
  store ptr %77, ptr %5, align 8
  %78 = extractvalue { ptr, i32 } %76, 1
  store i32 %78, ptr %6, align 4
  br label %93

79:                                               ; preds = %28
  %80 = landingpad { ptr, i32 }
          cleanup
  %81 = extractvalue { ptr, i32 } %80, 0
  store ptr %81, ptr %5, align 8
  %82 = extractvalue { ptr, i32 } %80, 1
  store i32 %82, ptr %6, align 4
  br label %92

83:                                               ; preds = %30
  %84 = landingpad { ptr, i32 }
          cleanup
  %85 = extractvalue { ptr, i32 } %84, 0
  store ptr %85, ptr %5, align 8
  %86 = extractvalue { ptr, i32 } %84, 1
  store i32 %86, ptr %6, align 4
  br label %91

87:                                               ; preds = %31
  %88 = landingpad { ptr, i32 }
          cleanup
  %89 = extractvalue { ptr, i32 } %88, 0
  store ptr %89, ptr %5, align 8
  %90 = extractvalue { ptr, i32 } %88, 1
  store i32 %90, ptr %6, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #6
  br label %91

91:                                               ; preds = %87, %83
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #6
  br label %92

92:                                               ; preds = %91, %79
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  br label %93

93:                                               ; preds = %92, %75
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #6
  br label %173

94:                                               ; preds = %33
  %95 = landingpad { ptr, i32 }
          cleanup
  %96 = extractvalue { ptr, i32 } %95, 0
  store ptr %96, ptr %5, align 8
  %97 = extractvalue { ptr, i32 } %95, 1
  store i32 %97, ptr %6, align 4
  br label %112

98:                                               ; preds = %36
  %99 = landingpad { ptr, i32 }
          cleanup
  %100 = extractvalue { ptr, i32 } %99, 0
  store ptr %100, ptr %5, align 8
  %101 = extractvalue { ptr, i32 } %99, 1
  store i32 %101, ptr %6, align 4
  br label %111

102:                                              ; preds = %38
  %103 = landingpad { ptr, i32 }
          cleanup
  %104 = extractvalue { ptr, i32 } %103, 0
  store ptr %104, ptr %5, align 8
  %105 = extractvalue { ptr, i32 } %103, 1
  store i32 %105, ptr %6, align 4
  br label %110

106:                                              ; preds = %39
  %107 = landingpad { ptr, i32 }
          cleanup
  %108 = extractvalue { ptr, i32 } %107, 0
  store ptr %108, ptr %5, align 8
  %109 = extractvalue { ptr, i32 } %107, 1
  store i32 %109, ptr %6, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #6
  br label %110

110:                                              ; preds = %106, %102
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %13) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %13) #6
  br label %111

111:                                              ; preds = %110, %98
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %10) #6
  br label %112

112:                                              ; preds = %111, %94
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %11) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #6
  br label %172

113:                                              ; preds = %41
  %114 = landingpad { ptr, i32 }
          cleanup
  %115 = extractvalue { ptr, i32 } %114, 0
  store ptr %115, ptr %5, align 8
  %116 = extractvalue { ptr, i32 } %114, 1
  store i32 %116, ptr %6, align 4
  br label %121

117:                                              ; preds = %45
  %118 = landingpad { ptr, i32 }
          cleanup
  %119 = extractvalue { ptr, i32 } %118, 0
  store ptr %119, ptr %5, align 8
  %120 = extractvalue { ptr, i32 } %118, 1
  store i32 %120, ptr %6, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %15) #6
  br label %121

121:                                              ; preds = %117, %113
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %16) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %16) #6
  br label %171

122:                                              ; preds = %70
  call void @llvm.lifetime.start.p0(i64 1, ptr %19) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %19) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %18, ptr noundef @.str.2, ptr noundef nonnull align 1 dereferenceable(1) %19)
          to label %123 unwind label %141

123:                                              ; preds = %122
  %124 = load i32, ptr %17, align 4, !tbaa !8
  %125 = load i32, ptr %17, align 4, !tbaa !8
  %126 = add nsw i32 %125, 1
  %127 = invoke noundef i32 @_Z3qryNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef %18, i32 noundef %124, i32 noundef %126)
          to label %128 unwind label %145

128:                                              ; preds = %123
  %129 = load i32, ptr %17, align 4, !tbaa !8
  %130 = sub nsw i32 %129, 1
  %131 = sext i32 %130 to i64
  %132 = getelementptr inbounds [65536 x i32], ptr @a, i64 0, i64 %131
  %133 = load i32, ptr %132, align 4, !tbaa !8
  %134 = xor i32 %127, %133
  %135 = load i32, ptr %17, align 4, !tbaa !8
  %136 = sext i32 %135 to i64
  %137 = getelementptr inbounds [65536 x i32], ptr @a, i64 0, i64 %136
  store i32 %134, ptr %137, align 4, !tbaa !8
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %18) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %19) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %19) #6
  br label %138

138:                                              ; preds = %128
  %139 = load i32, ptr %17, align 4, !tbaa !8
  %140 = add nsw i32 %139, 1
  store i32 %140, ptr %17, align 4, !tbaa !8
  br label %70, !llvm.loop !11

141:                                              ; preds = %122
  %142 = landingpad { ptr, i32 }
          cleanup
  %143 = extractvalue { ptr, i32 } %142, 0
  store ptr %143, ptr %5, align 8
  %144 = extractvalue { ptr, i32 } %142, 1
  store i32 %144, ptr %6, align 4
  br label %149

145:                                              ; preds = %123
  %146 = landingpad { ptr, i32 }
          cleanup
  %147 = extractvalue { ptr, i32 } %146, 0
  store ptr %147, ptr %5, align 8
  %148 = extractvalue { ptr, i32 } %146, 1
  store i32 %148, ptr %6, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %18) #6
  br label %149

149:                                              ; preds = %145, %141
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %19) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %19) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #6
  br label %171

150:                                              ; preds = %74
  %151 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.4)
  call void @llvm.lifetime.start.p0(i64 4, ptr %20) #6
  store i32 0, ptr %20, align 4, !tbaa !8
  br label %152

152:                                              ; preds = %164, %150
  %153 = load i32, ptr %20, align 4, !tbaa !8
  %154 = load i32, ptr @N, align 4, !tbaa !8
  %155 = icmp slt i32 %153, %154
  br i1 %155, label %157, label %156

156:                                              ; preds = %152
  call void @llvm.lifetime.end.p0(i64 4, ptr %20) #6
  br label %167

157:                                              ; preds = %152
  %158 = load i32, ptr %20, align 4, !tbaa !8
  %159 = sext i32 %158 to i64
  %160 = getelementptr inbounds [65536 x i32], ptr @a, i64 0, i64 %159
  %161 = load i32, ptr %160, align 4, !tbaa !8
  %162 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %161)
  %163 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %162, ptr noundef @.str)
  br label %164

164:                                              ; preds = %157
  %165 = load i32, ptr %20, align 4, !tbaa !8
  %166 = add nsw i32 %165, 1
  store i32 %166, ptr %20, align 4, !tbaa !8
  br label %152, !llvm.loop !13

167:                                              ; preds = %156
  %168 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.1)
  %169 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5flushEv(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout)
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  %170 = load i32, ptr %1, align 4
  ret i32 %170

171:                                              ; preds = %149, %121
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #6
  br label %172

172:                                              ; preds = %171, %112
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  br label %173

173:                                              ; preds = %172, %93
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  br label %174

174:                                              ; preds = %173
  %175 = load ptr, ptr %5, align 8
  %176 = load i32, ptr %6, align 4
  %177 = insertvalue { ptr, i32 } poison, ptr %175, 0
  %178 = insertvalue { ptr, i32 } %177, i32 %176, 1
  resume { ptr, i32 } %178
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #2

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 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 = { 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 #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 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 #5 = { 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 #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 = distinct !{!13, !12}


; 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_ostream" = type { ptr, %"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_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"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::allocator" = type { i8 }

@N = external dso_local global i32, align 4
@a = external dso_local local_unnamed_addr global [65536 x i32], align 16
@rxor = external dso_local local_unnamed_addr global i32, align 4
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z3qryNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #1

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

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5flushEv(ptr noundef nonnull align 8 dereferenceable(8)) 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #4 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca %"class.std::allocator", align 1
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca %"class.std::allocator", align 1
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::allocator", align 1
  %7 = alloca %"class.std::__cxx11::basic_string", align 8
  %8 = alloca %"class.std::allocator", align 1
  %9 = alloca %"class.std::__cxx11::basic_string", align 8
  %10 = alloca %"class.std::allocator", align 1
  %11 = alloca %"class.std::__cxx11::basic_string", align 8
  %12 = alloca %"class.std::allocator", align 1
  %13 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %14 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %15 = getelementptr i8, ptr %14, i64 -24
  %16 = load i64, ptr %15, align 8
  %17 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %16
  %18 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %17, ptr noundef null)
  %19 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @N)
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %2) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull @.str.2, ptr noundef nonnull align 1 dereferenceable(1) %2)
          to label %20 unwind label %57

20:                                               ; preds = %0
  %21 = invoke noundef i32 @_Z3qryNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef nonnull %1, i32 noundef 1, i32 noundef 2)
          to label %22 unwind label %59

22:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %3, ptr noundef nonnull @.str.3, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %23 unwind label %61

23:                                               ; preds = %22
  %24 = invoke noundef i32 @_Z3qryNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef nonnull %3, i32 noundef 1, i32 noundef 2)
          to label %25 unwind label %63

25:                                               ; preds = %23
  %26 = shl i32 %24, 1
  %27 = add nsw i32 %26, %21
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull @.str.2, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %28 unwind label %68

28:                                               ; preds = %25
  %29 = invoke noundef i32 @_Z3qryNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef nonnull %5, i32 noundef 2, i32 noundef 3)
          to label %30 unwind label %70

30:                                               ; preds = %28
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %8) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %7, ptr noundef nonnull @.str.3, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %31 unwind label %72

31:                                               ; preds = %30
  %32 = invoke noundef i32 @_Z3qryNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef nonnull %7, i32 noundef 2, i32 noundef 3)
          to label %33 unwind label %74

33:                                               ; preds = %31
  %34 = shl i32 %32, 1
  %35 = add nsw i32 %34, %29
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %8) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #6
  %36 = load i32, ptr @rxor, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %10) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef nonnull @.str.3, ptr noundef nonnull align 1 dereferenceable(1) %10)
          to label %37 unwind label %79

37:                                               ; preds = %33
  %38 = invoke noundef i32 @_Z3qryNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef nonnull %9, i32 noundef 1, i32 noundef 3)
          to label %39 unwind label %81

39:                                               ; preds = %37
  %40 = shl i32 %38, 1
  %41 = add nsw i32 %40, %36
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %10) #6
  %42 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5flushEv(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout)
  %43 = sub i32 %27, %35
  %44 = add nsw i32 %43, %41
  %45 = sdiv i32 %44, 2
  store i32 %45, ptr @a, align 16, !tbaa !8
  %46 = add nsw i32 %35, %27
  %47 = sub i32 %46, %41
  %48 = sdiv i32 %47, 2
  store i32 %48, ptr getelementptr inbounds (i8, ptr @a, i64 4), align 4, !tbaa !8
  %49 = sub i32 %35, %27
  %50 = add nsw i32 %49, %41
  %51 = sdiv i32 %50, 2
  store i32 %51, ptr getelementptr inbounds (i8, ptr @a, i64 8), align 8, !tbaa !8
  %52 = load i32, ptr @N, align 4, !tbaa !8
  %53 = icmp sgt i32 %52, 3
  br i1 %53, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %87, %39
  %54 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.4)
  %55 = load i32, ptr @N, align 4, !tbaa !8
  %56 = icmp sgt i32 %55, 0
  br i1 %56, label %.lr.ph52, label %._crit_edge53

57:                                               ; preds = %0
  %58 = landingpad { ptr, i32 }
          cleanup
  br label %67

59:                                               ; preds = %20
  %60 = landingpad { ptr, i32 }
          cleanup
  br label %66

61:                                               ; preds = %22
  %62 = landingpad { ptr, i32 }
          cleanup
  br label %65

63:                                               ; preds = %23
  %64 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  br label %65

65:                                               ; preds = %63, %61
  %.pn = phi { ptr, i32 } [ %64, %63 ], [ %62, %61 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #6
  br label %66

66:                                               ; preds = %65, %59
  %.pn.pn = phi { ptr, i32 } [ %.pn, %65 ], [ %60, %59 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  br label %67

67:                                               ; preds = %66, %57
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %66 ], [ %58, %57 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %2) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #6
  br label %110

68:                                               ; preds = %25
  %69 = landingpad { ptr, i32 }
          cleanup
  br label %78

70:                                               ; preds = %28
  %71 = landingpad { ptr, i32 }
          cleanup
  br label %77

72:                                               ; preds = %30
  %73 = landingpad { ptr, i32 }
          cleanup
  br label %76

74:                                               ; preds = %31
  %75 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %7) #6
  br label %76

76:                                               ; preds = %74, %72
  %.pn36 = phi { ptr, i32 } [ %75, %74 ], [ %73, %72 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %8) #6
  br label %77

77:                                               ; preds = %76, %70
  %.pn36.pn = phi { ptr, i32 } [ %.pn36, %76 ], [ %71, %70 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  br label %78

78:                                               ; preds = %77, %68
  %.pn36.pn.pn = phi { ptr, i32 } [ %.pn36.pn, %77 ], [ %69, %68 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #6
  br label %110

79:                                               ; preds = %33
  %80 = landingpad { ptr, i32 }
          cleanup
  br label %83

81:                                               ; preds = %37
  %82 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #6
  br label %83

83:                                               ; preds = %81, %79
  %.pn40 = phi { ptr, i32 } [ %82, %81 ], [ %80, %79 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %10) #6
  br label %110

.lr.ph:                                           ; preds = %39, %87
  %indvars.iv = phi i64 [ %indvars.iv.next, %87 ], [ 3, %39 ]
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %12) #6
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #6
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %11, ptr noundef nonnull @.str.2, ptr noundef nonnull align 1 dereferenceable(1) %12)
          to label %84 unwind label %96

84:                                               ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %indvars = trunc i64 %indvars.iv.next to i32
  %85 = trunc nuw nsw i64 %indvars.iv to i32
  %86 = invoke noundef i32 @_Z3qryNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef nonnull %11, i32 noundef %85, i32 noundef %indvars)
          to label %87 unwind label %98

87:                                               ; preds = %84
  %88 = add nsw i64 %indvars.iv, -1
  %89 = getelementptr inbounds [65536 x i32], ptr @a, i64 0, i64 %88
  %90 = load i32, ptr %89, align 4, !tbaa !8
  %91 = xor i32 %90, %86
  %92 = getelementptr inbounds [65536 x i32], ptr @a, i64 0, i64 %indvars.iv
  store i32 %91, ptr %92, align 4, !tbaa !8
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #6
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %12) #6
  %93 = load i32, ptr @N, align 4, !tbaa !8
  %94 = sext i32 %93 to i64
  %95 = icmp slt i64 %indvars.iv.next, %94
  br i1 %95, label %.lr.ph, label %._crit_edge, !llvm.loop !11

96:                                               ; preds = %.lr.ph
  %97 = landingpad { ptr, i32 }
          cleanup
  br label %100

98:                                               ; preds = %84
  %99 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #6
  br label %100

100:                                              ; preds = %98, %96
  %.pn42 = phi { ptr, i32 } [ %99, %98 ], [ %97, %96 ]
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %12) #6
  br label %110

._crit_edge53:                                    ; preds = %.lr.ph52, %._crit_edge
  %101 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.1)
  %102 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSo5flushEv(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout)
  ret i32 0

.lr.ph52:                                         ; preds = %._crit_edge, %.lr.ph52
  %indvars.iv55 = phi i64 [ %indvars.iv.next56, %.lr.ph52 ], [ 0, %._crit_edge ]
  %103 = getelementptr inbounds [65536 x i32], ptr @a, i64 0, i64 %indvars.iv55
  %104 = load i32, ptr %103, align 4, !tbaa !8
  %105 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %104)
  %106 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %105, ptr noundef nonnull @.str)
  %indvars.iv.next56 = add nuw nsw i64 %indvars.iv55, 1
  %107 = load i32, ptr @N, align 4, !tbaa !8
  %108 = sext i32 %107 to i64
  %109 = icmp slt i64 %indvars.iv.next56, %108
  br i1 %109, label %.lr.ph52, label %._crit_edge53, !llvm.loop !13

110:                                              ; preds = %78, %100, %83, %67
  %.pn42.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn.pn, %67 ], [ %.pn36.pn.pn, %78 ], [ %.pn42, %100 ], [ %.pn40, %83 ]
  resume { ptr, i32 } %.pn42.pn.pn.pn
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 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 = { 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 #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 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 #5 = { 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 #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 = distinct !{!13, !12}


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