; LLVM IR from Mohammed-Shoaib/Coding-Problems :: Codeforces/Solutions (1265A)

; 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::allocator.2" = type { i8 }

@.str = external hidden unnamed_addr constant [2 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local noundef signext i8 @_Z6updatecc(i8 noundef signext, i8 noundef signext) #0

; 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 void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 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 uwtable
define dso_local void @_Z9constructRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8 %0, ptr noundef nonnull align 8 dereferenceable(32) %1) #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %"class.std::allocator.2", align 1
  %7 = alloca i1, align 1
  %8 = alloca i1, align 1
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca %"class.std::allocator.2", align 1
  %13 = alloca i32, align 4
  %14 = alloca %"class.std::allocator.2", align 1
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %15) #3
  %17 = trunc i64 %16 to i32
  store i32 %17, ptr %5, align 4, !tbaa !9
  %18 = load i32, ptr %5, align 4, !tbaa !9
  %19 = icmp eq i32 %18, 1
  br i1 %19, label %20, label %48

20:                                               ; preds = %2
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %21, i64 noundef 0)
  %23 = load i8, ptr %22, align 1, !tbaa !11
  %24 = sext i8 %23 to i32
  %25 = icmp eq i32 %24, 63
  store i1 false, ptr %7, align 1
  store i1 false, ptr %8, align 1
  br i1 %25, label %26, label %28

26:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #3
  store i1 true, ptr %7, align 1
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #3
  store i1 true, ptr %8, align 1
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef @.str, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %27 unwind label %38

27:                                               ; preds = %26
  br label %31

28:                                               ; preds = %20
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %29)
          to label %30 unwind label %38

30:                                               ; preds = %28
  br label %31

31:                                               ; preds = %30, %27
  %32 = load i1, ptr %8, align 1
  br i1 %32, label %33, label %34

33:                                               ; preds = %31
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #3
  br label %34

34:                                               ; preds = %33, %31
  %35 = load i1, ptr %7, align 1
  br i1 %35, label %36, label %37

36:                                               ; preds = %34
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #3
  br label %37

37:                                               ; preds = %36, %34
  store i32 1, ptr %11, align 4
  br label %162

38:                                               ; preds = %28, %26
  %39 = landingpad { ptr, i32 }
          cleanup
  %40 = extractvalue { ptr, i32 } %39, 0
  store ptr %40, ptr %9, align 8
  %41 = extractvalue { ptr, i32 } %39, 1
  store i32 %41, ptr %10, align 4
  %42 = load i1, ptr %8, align 1
  br i1 %42, label %43, label %44

43:                                               ; preds = %38
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #3
  br label %44

44:                                               ; preds = %43, %38
  %45 = load i1, ptr %7, align 1
  br i1 %45, label %46, label %47

46:                                               ; preds = %44
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #3
  br label %47

47:                                               ; preds = %46, %44
  br label %163

48:                                               ; preds = %2
  %49 = load ptr, ptr %4, align 8, !tbaa !5
  %50 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %49, i64 noundef 0)
  %51 = load i8, ptr %50, align 1, !tbaa !11
  %52 = sext i8 %51 to i32
  %53 = icmp eq i32 %52, 63
  br i1 %53, label %54, label %61

54:                                               ; preds = %48
  %55 = load ptr, ptr %4, align 8, !tbaa !5
  %56 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %55, i64 noundef 1)
  %57 = load i8, ptr %56, align 1, !tbaa !11
  %58 = call noundef signext i8 @_Z6updatecc(i8 noundef signext 63, i8 noundef signext %57)
  %59 = load ptr, ptr %4, align 8, !tbaa !5
  %60 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %59, i64 noundef 0)
  store i8 %58, ptr %60, align 1, !tbaa !11
  br label %61

61:                                               ; preds = %54, %48
  %62 = load ptr, ptr %4, align 8, !tbaa !5
  %63 = load i32, ptr %5, align 4, !tbaa !9
  %64 = sub nsw i32 %63, 1
  %65 = sext i32 %64 to i64
  %66 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %62, i64 noundef %65)
  %67 = load i8, ptr %66, align 1, !tbaa !11
  %68 = sext i8 %67 to i32
  %69 = icmp eq i32 %68, 63
  br i1 %69, label %70, label %83

70:                                               ; preds = %61
  %71 = load ptr, ptr %4, align 8, !tbaa !5
  %72 = load i32, ptr %5, align 4, !tbaa !9
  %73 = sub nsw i32 %72, 2
  %74 = sext i32 %73 to i64
  %75 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %71, i64 noundef %74)
  %76 = load i8, ptr %75, align 1, !tbaa !11
  %77 = call noundef signext i8 @_Z6updatecc(i8 noundef signext %76, i8 noundef signext 63)
  %78 = load ptr, ptr %4, align 8, !tbaa !5
  %79 = load i32, ptr %5, align 4, !tbaa !9
  %80 = sub nsw i32 %79, 1
  %81 = sext i32 %80 to i64
  %82 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %78, i64 noundef %81)
  store i8 %77, ptr %82, align 1, !tbaa !11
  br label %83

83:                                               ; preds = %70, %61
  %84 = load ptr, ptr %4, align 8, !tbaa !5
  %85 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %84, i64 noundef 0)
  %86 = load i8, ptr %85, align 1, !tbaa !11
  %87 = sext i8 %86 to i32
  %88 = load ptr, ptr %4, align 8, !tbaa !5
  %89 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %88, i64 noundef 1)
  %90 = load i8, ptr %89, align 1, !tbaa !11
  %91 = sext i8 %90 to i32
  %92 = icmp eq i32 %87, %91
  br i1 %92, label %93, label %99

93:                                               ; preds = %83
  call void @llvm.lifetime.start.p0(i64 1, ptr %12) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef @.str.1, ptr noundef nonnull align 1 dereferenceable(1) %12)
          to label %94 unwind label %95

94:                                               ; preds = %93
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #3
  store i32 1, ptr %11, align 4
  br label %162

95:                                               ; preds = %93
  %96 = landingpad { ptr, i32 }
          cleanup
  %97 = extractvalue { ptr, i32 } %96, 0
  store ptr %97, ptr %9, align 8
  %98 = extractvalue { ptr, i32 } %96, 1
  store i32 %98, ptr %10, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %12) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #3
  br label %163

99:                                               ; preds = %83
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #3
  store i32 1, ptr %13, align 4, !tbaa !9
  br label %100

100:                                              ; preds = %155, %99
  %101 = load i32, ptr %13, align 4, !tbaa !9
  %102 = load i32, ptr %5, align 4, !tbaa !9
  %103 = sub nsw i32 %102, 1
  %104 = icmp slt i32 %101, %103
  br i1 %104, label %106, label %105

105:                                              ; preds = %100
  store i32 2, ptr %11, align 4
  br label %158

106:                                              ; preds = %100
  %107 = load ptr, ptr %4, align 8, !tbaa !5
  %108 = load i32, ptr %13, align 4, !tbaa !9
  %109 = sext i32 %108 to i64
  %110 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %107, i64 noundef %109)
  %111 = load i8, ptr %110, align 1, !tbaa !11
  %112 = sext i8 %111 to i32
  %113 = icmp eq i32 %112, 63
  br i1 %113, label %114, label %132

114:                                              ; preds = %106
  %115 = load ptr, ptr %4, align 8, !tbaa !5
  %116 = load i32, ptr %13, align 4, !tbaa !9
  %117 = sub nsw i32 %116, 1
  %118 = sext i32 %117 to i64
  %119 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %115, i64 noundef %118)
  %120 = load i8, ptr %119, align 1, !tbaa !11
  %121 = load ptr, ptr %4, align 8, !tbaa !5
  %122 = load i32, ptr %13, align 4, !tbaa !9
  %123 = add nsw i32 %122, 1
  %124 = sext i32 %123 to i64
  %125 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %121, i64 noundef %124)
  %126 = load i8, ptr %125, align 1, !tbaa !11
  %127 = call noundef signext i8 @_Z6updatecc(i8 noundef signext %120, i8 noundef signext %126)
  %128 = load ptr, ptr %4, align 8, !tbaa !5
  %129 = load i32, ptr %13, align 4, !tbaa !9
  %130 = sext i32 %129 to i64
  %131 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %128, i64 noundef %130)
  store i8 %127, ptr %131, align 1, !tbaa !11
  br label %154

132:                                              ; preds = %106
  %133 = load ptr, ptr %4, align 8, !tbaa !5
  %134 = load i32, ptr %13, align 4, !tbaa !9
  %135 = sext i32 %134 to i64
  %136 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %133, i64 noundef %135)
  %137 = load i8, ptr %136, align 1, !tbaa !11
  %138 = sext i8 %137 to i32
  %139 = load ptr, ptr %4, align 8, !tbaa !5
  %140 = load i32, ptr %13, align 4, !tbaa !9
  %141 = add nsw i32 %140, 1
  %142 = sext i32 %141 to i64
  %143 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %139, i64 noundef %142)
  %144 = load i8, ptr %143, align 1, !tbaa !11
  %145 = sext i8 %144 to i32
  %146 = icmp eq i32 %138, %145
  br i1 %146, label %147, label %153

147:                                              ; preds = %132
  call void @llvm.lifetime.start.p0(i64 1, ptr %14) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef @.str.1, ptr noundef nonnull align 1 dereferenceable(1) %14)
          to label %148 unwind label %149

148:                                              ; preds = %147
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #3
  store i32 1, ptr %11, align 4
  br label %158

149:                                              ; preds = %147
  %150 = landingpad { ptr, i32 }
          cleanup
  %151 = extractvalue { ptr, i32 } %150, 0
  store ptr %151, ptr %9, align 8
  %152 = extractvalue { ptr, i32 } %150, 1
  store i32 %152, ptr %10, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %14) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  br label %163

153:                                              ; preds = %132
  br label %154

154:                                              ; preds = %153, %114
  br label %155

155:                                              ; preds = %154
  %156 = load i32, ptr %13, align 4, !tbaa !9
  %157 = add nsw i32 %156, 1
  store i32 %157, ptr %13, align 4, !tbaa !9
  br label %100, !llvm.loop !12

158:                                              ; preds = %148, %105
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #3
  %159 = load i32, ptr %11, align 4
  switch i32 %159, label %162 [
    i32 2, label %160
  ]

160:                                              ; preds = %158
  %161 = load ptr, ptr %4, align 8, !tbaa !5
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %161)
  store i32 1, ptr %11, align 4
  br label %162

162:                                              ; preds = %160, %158, %94, %37
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret void

163:                                              ; preds = %149, %95, %47
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %164

164:                                              ; preds = %163
  %165 = load ptr, ptr %9, align 8
  %166 = load i32, ptr %10, align 4
  %167 = insertvalue { ptr, i32 } poison, ptr %165, 0
  %168 = insertvalue { ptr, i32 } %167, i32 %166, 1
  resume { ptr, i32 } %168
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) #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: 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

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(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 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


; 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::allocator.2" = type { i8 }

@.str = external hidden unnamed_addr constant [2 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local noundef signext i8 @_Z6updatecc(i8 noundef signext, i8 noundef signext) local_unnamed_addr #0

; 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 void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 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 uwtable
define dso_local void @_Z9constructRNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8 %0, ptr noundef nonnull align 8 dereferenceable(32) %1) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::allocator.2", align 1
  %4 = alloca %"class.std::allocator.2", align 1
  %5 = alloca %"class.std::allocator.2", align 1
  %6 = tail call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #3
  %7 = trunc i64 %6 to i32
  %8 = icmp eq i32 %7, 1
  %9 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 0)
  %10 = load i8, ptr %9, align 1, !tbaa !5
  %11 = icmp eq i8 %10, 63
  br i1 %8, label %12, label %18

12:                                               ; preds = %2
  br i1 %11, label %13, label %14

13:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull @.str, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %15 unwind label %16

14:                                               ; preds = %12
  tail call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %1)
  br label %.critedge

15:                                               ; preds = %13
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #3
  br label %.critedge

16:                                               ; preds = %13
  %17 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #3
  br label %.critedge46

18:                                               ; preds = %2
  br i1 %11, label %19, label %24

19:                                               ; preds = %18
  %20 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 1)
  %21 = load i8, ptr %20, align 1, !tbaa !5
  %22 = tail call noundef signext i8 @_Z6updatecc(i8 noundef signext 63, i8 noundef signext %21)
  %23 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 0)
  store i8 %22, ptr %23, align 1, !tbaa !5
  br label %24

24:                                               ; preds = %19, %18
  %25 = add nsw i32 %7, -1
  %26 = sext i32 %25 to i64
  %27 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %26)
  %28 = load i8, ptr %27, align 1, !tbaa !5
  %29 = icmp eq i8 %28, 63
  br i1 %29, label %30, label %37

30:                                               ; preds = %24
  %31 = shl i64 %6, 32
  %sext = add i64 %31, -8589934592
  %32 = ashr exact i64 %sext, 32
  %33 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %32)
  %34 = load i8, ptr %33, align 1, !tbaa !5
  %35 = tail call noundef signext i8 @_Z6updatecc(i8 noundef signext %34, i8 noundef signext 63)
  %36 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %26)
  store i8 %35, ptr %36, align 1, !tbaa !5
  br label %37

37:                                               ; preds = %30, %24
  %38 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 0)
  %39 = load i8, ptr %38, align 1, !tbaa !5
  %40 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef 1)
  %41 = load i8, ptr %40, align 1, !tbaa !5
  %42 = icmp eq i8 %39, %41
  br i1 %42, label %43, label %.preheader

.preheader:                                       ; preds = %37
  %.not50 = icmp sgt i32 %7, 2
  br i1 %.not50, label %.lr.ph.preheader, label %.critedge48

.lr.ph.preheader:                                 ; preds = %.preheader
  %wide.trip.count = zext nneg i32 %25 to i64
  br label %.lr.ph

43:                                               ; preds = %37
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull @.str.1, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %44 unwind label %45

44:                                               ; preds = %43
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #3
  br label %.critedge

45:                                               ; preds = %43
  %46 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #3
  br label %.critedge46

.lr.ph:                                           ; preds = %.lr.ph.preheader, %70
  %indvars.iv = phi i64 [ 1, %.lr.ph.preheader ], [ %indvars.iv.next.pre-phi, %70 ]
  %47 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  %48 = load i8, ptr %47, align 1, !tbaa !5
  %49 = icmp eq i8 %48, 63
  br i1 %49, label %50, label %59

50:                                               ; preds = %.lr.ph
  %51 = add nsw i64 %indvars.iv, -1
  %52 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %51)
  %53 = load i8, ptr %52, align 1, !tbaa !5
  %54 = add nuw nsw i64 %indvars.iv, 1
  %55 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %54)
  %56 = load i8, ptr %55, align 1, !tbaa !5
  %57 = tail call noundef signext i8 @_Z6updatecc(i8 noundef signext %53, i8 noundef signext %56)
  %58 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  store i8 %57, ptr %58, align 1, !tbaa !5
  br label %70

59:                                               ; preds = %.lr.ph
  %60 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %indvars.iv)
  %61 = load i8, ptr %60, align 1, !tbaa !5
  %62 = add nuw nsw i64 %indvars.iv, 1
  %63 = tail call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %62)
  %64 = load i8, ptr %63, align 1, !tbaa !5
  %65 = icmp eq i8 %61, %64
  br i1 %65, label %66, label %70

66:                                               ; preds = %59
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #3
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull @.str.1, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %67 unwind label %68

67:                                               ; preds = %66
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #3
  br label %.critedge

68:                                               ; preds = %66
  %69 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #3
  br label %.critedge46

70:                                               ; preds = %50, %59
  %indvars.iv.next.pre-phi = phi i64 [ %54, %50 ], [ %62, %59 ]
  %exitcond.not = icmp eq i64 %indvars.iv.next.pre-phi, %wide.trip.count
  br i1 %exitcond.not, label %.critedge48, label %.lr.ph, !llvm.loop !8

.critedge48:                                      ; preds = %70, %.preheader
  tail call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32) %0, ptr noundef nonnull align 8 dereferenceable(32) %1)
  br label %.critedge

.critedge:                                        ; preds = %14, %67, %15, %.critedge48, %44
  ret void

.critedge46:                                      ; preds = %16, %68, %45
  %.pn = phi { ptr, i32 } [ %17, %16 ], [ %46, %45 ], [ %69, %68 ]
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6lengthEv(ptr noundef nonnull align 8 dereferenceable(32)) 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: 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

; Function Attrs: mustprogress uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ERKS4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(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 = { nounwind }

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

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


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