; LLVM IR from abeaumont/competitive-programming :: kattis (secretchamber)

; 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.__gnu_cxx::__normal_iterator" = type { ptr }
%"struct.std::pair" = type <{ %"struct.std::__detail::_Node_iterator", i8, [7 x i8] }>
%"struct.std::__detail::_Node_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }
%"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 }

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z1sPKSt6vectorIiSaIiEERSt13unordered_setIiSt4hashIiESt8equal_toIiES0_Ecc(ptr noundef %0, ptr noundef nonnull align 8 dereferenceable(56) %1, i8 noundef signext %2, i8 noundef signext %3) #0 {
  %5 = alloca i1, align 1
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i8, align 1
  %9 = alloca i8, align 1
  %10 = alloca ptr, align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca %"struct.std::pair", align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store i8 %2, ptr %8, align 1, !tbaa !9
  store i8 %3, ptr %9, align 1, !tbaa !9
  %16 = load i8, ptr %8, align 1, !tbaa !9
  %17 = sext i8 %16 to i32
  %18 = load i8, ptr %9, align 1, !tbaa !9
  %19 = sext i8 %18 to i32
  %20 = icmp eq i32 %17, %19
  br i1 %20, label %21, label %22

21:                                               ; preds = %4
  store i1 true, ptr %5, align 1
  br label %69

22:                                               ; preds = %4
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  %24 = load i8, ptr %8, align 1, !tbaa !9
  %25 = sext i8 %24 to i32
  %26 = sub nsw i32 %25, 97
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds %"class.std::vector", ptr %23, i64 %27
  store ptr %28, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  %29 = load ptr, ptr %10, align 8, !tbaa !5
  %30 = call ptr @_ZNKSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %29) #4
  %31 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %11, i32 0, i32 0
  store ptr %30, ptr %31, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #4
  %32 = load ptr, ptr %10, align 8, !tbaa !5
  %33 = call ptr @_ZNKSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %32) #4
  %34 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %12, i32 0, i32 0
  store ptr %33, ptr %34, align 8
  br label %35

35:                                               ; preds = %64, %22
  %36 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8) %11, ptr noundef nonnull align 8 dereferenceable(8) %12) #4
  br i1 %36, label %38, label %37

37:                                               ; preds = %35
  store i32 2, ptr %13, align 4
  br label %66

38:                                               ; preds = %35
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #4
  %39 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #4
  %40 = load i32, ptr %39, align 4, !tbaa !10
  store i32 %40, ptr %14, align 4, !tbaa !10
  %41 = load ptr, ptr %7, align 8, !tbaa !5
  %42 = call noundef i64 @_ZNKSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE5countERKi(ptr noundef nonnull align 8 dereferenceable(56) %41, ptr noundef nonnull align 4 dereferenceable(4) %14)
  %43 = icmp ne i64 %42, 0
  br i1 %43, label %44, label %45

44:                                               ; preds = %38
  store i32 3, ptr %13, align 4
  br label %61

45:                                               ; preds = %38
  %46 = load ptr, ptr %7, align 8, !tbaa !5
  %47 = call { ptr, i8 } @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(56) %46, ptr noundef nonnull align 4 dereferenceable(4) %14)
  %48 = getelementptr inbounds { ptr, i8 }, ptr %15, i32 0, i32 0
  %49 = extractvalue { ptr, i8 } %47, 0
  store ptr %49, ptr %48, align 8
  %50 = getelementptr inbounds { ptr, i8 }, ptr %15, i32 0, i32 1
  %51 = extractvalue { ptr, i8 } %47, 1
  store i8 %51, ptr %50, align 8
  %52 = load ptr, ptr %6, align 8, !tbaa !5
  %53 = load ptr, ptr %7, align 8, !tbaa !5
  %54 = load i32, ptr %14, align 4, !tbaa !10
  %55 = add nsw i32 %54, 97
  %56 = trunc i32 %55 to i8
  %57 = load i8, ptr %9, align 1, !tbaa !9
  %58 = call noundef zeroext i1 @_Z1sPKSt6vectorIiSaIiEERSt13unordered_setIiSt4hashIiESt8equal_toIiES0_Ecc(ptr noundef %52, ptr noundef nonnull align 8 dereferenceable(56) %53, i8 noundef signext %56, i8 noundef signext %57)
  br i1 %58, label %59, label %60

59:                                               ; preds = %45
  store i1 true, ptr %5, align 1
  store i32 1, ptr %13, align 4
  br label %61

60:                                               ; preds = %45
  store i32 0, ptr %13, align 4
  br label %61

61:                                               ; preds = %60, %59, %44
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #4
  %62 = load i32, ptr %13, align 4
  switch i32 %62, label %66 [
    i32 0, label %63
    i32 3, label %64
  ]

63:                                               ; preds = %61
  br label %64

64:                                               ; preds = %63, %61
  %65 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %11) #4
  br label %35

66:                                               ; preds = %61, %37
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  %67 = load i32, ptr %13, align 4
  switch i32 %67, label %71 [
    i32 2, label %68
    i32 1, label %69
  ]

68:                                               ; preds = %66
  store i1 false, ptr %5, align 1
  br label %69

69:                                               ; preds = %68, %66, %21
  %70 = load i1, ptr %5, align 1
  ret i1 %70

71:                                               ; preds = %66
  unreachable
}

; 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 ptr @_ZNKSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPKiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNKSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE5countERKi(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = !{!11, !11, i64 0}
!11 = !{!"int", !7, i64 0}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"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 }

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z1sPKSt6vectorIiSaIiEERSt13unordered_setIiSt4hashIiESt8equal_toIiES0_Ecc(ptr noundef %0, ptr noundef nonnull align 8 dereferenceable(56) %1, i8 noundef signext %2, i8 noundef signext %3) local_unnamed_addr #0 {
  %5 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca i32, align 4
  %8 = icmp eq i8 %2, %3
  br i1 %8, label %30, label %9

9:                                                ; preds = %4
  %10 = sext i8 %2 to i64
  %11 = getelementptr %"class.std::vector", ptr %0, i64 %10
  %12 = getelementptr i8, ptr %11, i64 -2328
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %13 = tail call ptr @_ZNKSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %12) #4
  store ptr %13, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #4
  %14 = tail call ptr @_ZNKSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %12) #4
  store ptr %14, ptr %6, align 8
  %15 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #4
  br i1 %15, label %.lr.ph, label %.loopexit

.lr.ph:                                           ; preds = %9, %26
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #4
  %16 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  %17 = load i32, ptr %16, align 4, !tbaa !5
  store i32 %17, ptr %7, align 4, !tbaa !5
  %18 = call noundef i64 @_ZNKSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE5countERKi(ptr noundef nonnull align 8 dereferenceable(56) %1, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %.not = icmp eq i64 %18, 0
  br i1 %.not, label %19, label %26

19:                                               ; preds = %.lr.ph
  %20 = call { ptr, i8 } @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(56) %1, ptr noundef nonnull align 4 dereferenceable(4) %7)
  %21 = load i32, ptr %7, align 4, !tbaa !5
  %22 = trunc i32 %21 to i8
  %23 = add i8 %22, 97
  %24 = call noundef zeroext i1 @_Z1sPKSt6vectorIiSaIiEERSt13unordered_setIiSt4hashIiESt8equal_toIiES0_Ecc(ptr noundef %0, ptr noundef nonnull align 8 dereferenceable(56) %1, i8 noundef signext %23, i8 noundef signext %3)
  br i1 %24, label %25, label %26

25:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #4
  br label %.loopexit

26:                                               ; preds = %.lr.ph, %19
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #4
  %27 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #4
  %28 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPKiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #4
  br i1 %28, label %.lr.ph, label %.loopexit

.loopexit:                                        ; preds = %26, %9, %25
  %29 = phi i1 [ true, %25 ], [ false, %9 ], [ false, %26 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  br label %30

30:                                               ; preds = %.loopexit, %4
  %.3 = phi i1 [ true, %4 ], [ %29, %.loopexit ]
  ret i1 %.3
}

; 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 ptr @_ZNKSt6vectorIiSaIiEE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt6vectorIiSaIiEE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPKiSt6vectorIiSaIiEEEEbRKNS_17__normal_iteratorIT_T0_EESB_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNKSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE5countERKi(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt13unordered_setIiSt4hashIiESt8equal_toIiESaIiEE6insertERKi(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPKiSt6vectorIiSaIiEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_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"}


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