; LLVM IR from AliveToolkit/alive2 :: util/errors.ll (ZNK4util6Errors9isUnsoundEv)

; 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"

%"struct.std::_Rb_tree_const_iterator" = type { ptr }
%"class.util::Errors" = type { %"class.std::set", %"class.std::set.0" }
%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::pair<std::__cxx11::basic_string<char>, bool>, std::pair<std::__cxx11::basic_string<char>, bool>, std::_Identity<std::pair<std::__cxx11::basic_string<char>, bool>>, std::less<std::pair<std::__cxx11::basic_string<char>, bool>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::pair<std::__cxx11::basic_string<char>, bool>, std::pair<std::__cxx11::basic_string<char>, bool>, std::_Identity<std::pair<std::__cxx11::basic_string<char>, bool>>, std::less<std::pair<std::__cxx11::basic_string<char>, bool>>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"class.std::set.0" = type { %"class.std::_Rb_tree.1" }
%"class.std::_Rb_tree.1" = type { %"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>, std::_Identity<std::__cxx11::basic_string<char>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::__cxx11::basic_string<char>, std::_Identity<std::__cxx11::basic_string<char>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_ZNK4util6Errors9isUnsoundEv(ptr noundef nonnull align 8 dereferenceable(96) %0) #1 align 2 {
  %2 = alloca i1, align 1
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %6 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %11 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #2
  %12 = getelementptr inbounds %"class.util::Errors", ptr %11, i32 0, i32 0
  store ptr %12, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = call ptr @_ZNKSt3setISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbESt4lessIS7_ESaIS7_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %13) #2
  %15 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %5, i32 0, i32 0
  store ptr %14, ptr %15, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = call ptr @_ZNKSt3setISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbESt4lessIS7_ESaIS7_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %16) #2
  %18 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %6, i32 0, i32 0
  store ptr %17, ptr %18, align 8
  br label %19

19:                                               ; preds = %36, %1
  %20 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbEESA_(ptr noundef nonnull align 8 dereferenceable(8) %5, ptr noundef nonnull align 8 dereferenceable(8) %6) #2
  br i1 %20, label %22, label %21

21:                                               ; preds = %19
  store i32 2, ptr %7, align 4
  br label %38

22:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  %23 = call noundef nonnull align 8 dereferenceable(33) ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #2
  store ptr %23, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  %24 = load ptr, ptr %8, align 8, !tbaa !5
  %25 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZSt3getILm0ENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbERKNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERKSA_(ptr noundef nonnull align 8 dereferenceable(33) %24) #2
  store ptr %25, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #2
  %26 = load ptr, ptr %8, align 8, !tbaa !5
  %27 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZSt3getILm1ENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbERKNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERKSA_(ptr noundef nonnull align 8 dereferenceable(33) %26) #2
  store ptr %27, ptr %10, align 8, !tbaa !5
  %28 = load ptr, ptr %10, align 8, !tbaa !5
  %29 = load i8, ptr %28, align 1, !tbaa !9, !range !11, !noundef !12
  %30 = trunc i8 %29 to i1
  br i1 %30, label %31, label %32

31:                                               ; preds = %22
  store i1 true, ptr %2, align 1
  store i32 1, ptr %7, align 4
  br label %33

32:                                               ; preds = %22
  store i32 0, ptr %7, align 4
  br label %33

33:                                               ; preds = %32, %31
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  %34 = load i32, ptr %7, align 4
  switch i32 %34, label %38 [
    i32 0, label %35
  ]

35:                                               ; preds = %33
  br label %36

36:                                               ; preds = %35
  %37 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %5) #2
  br label %19

38:                                               ; preds = %33, %21
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #2
  %39 = load i32, ptr %7, align 4
  switch i32 %39, label %43 [
    i32 2, label %40
    i32 1, label %41
  ]

40:                                               ; preds = %38
  store i1 false, ptr %2, align 1
  br label %41

41:                                               ; preds = %40, %38
  %42 = load i1, ptr %2, align 1
  ret i1 %42

43:                                               ; preds = %38
  unreachable
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbESt4lessIS7_ESaIS7_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbESt4lessIS7_ESaIS7_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbEESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(33) ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZSt3getILm0ENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbERKNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERKSA_(ptr noundef nonnull align 8 dereferenceable(33)) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZSt3getILm1ENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbERKNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERKSA_(ptr noundef nonnull align 8 dereferenceable(33)) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #1 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 = !{!"bool", !7, i64 0}
!11 = !{i8 0, i8 2}
!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"

%"struct.std::_Rb_tree_const_iterator" = type { ptr }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_ZNK4util6Errors9isUnsoundEv(ptr noundef nonnull align 8 dereferenceable(96) %0) local_unnamed_addr #1 align 2 {
  %2 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %3 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #2
  %4 = tail call ptr @_ZNKSt3setISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbESt4lessIS7_ESaIS7_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %0) #2
  store ptr %4, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #2
  %5 = tail call ptr @_ZNKSt3setISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbESt4lessIS7_ESaIS7_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %0) #2
  store ptr %5, ptr %3, align 8
  %6 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbEESA_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #2
  br i1 %6, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1, %12
  %7 = call noundef nonnull align 8 dereferenceable(33) ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #2
  %8 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZSt3getILm0ENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbERKNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERKSA_(ptr noundef nonnull align 8 dereferenceable(33) %7) #2
  %9 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZSt3getILm1ENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbERKNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERKSA_(ptr noundef nonnull align 8 dereferenceable(33) %7) #2
  %10 = load i8, ptr %9, align 1, !tbaa !5, !range !9, !noundef !10
  %11 = trunc nuw i8 %10 to i1
  br i1 %11, label %._crit_edge, label %12

12:                                               ; preds = %.lr.ph
  %13 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #2
  %14 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbEESA_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #2
  br i1 %14, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %12, %1
  %.lcssa = phi i1 [ false, %1 ], [ %11, %12 ], [ %11, %.lr.ph ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #2
  ret i1 %.lcssa
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbESt4lessIS7_ESaIS7_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbESt4lessIS7_ESaIS7_EE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbEESA_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(33) ptr @_ZNKSt23_Rb_tree_const_iteratorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZSt3getILm0ENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbERKNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERKSA_(ptr noundef nonnull align 8 dereferenceable(33)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZSt3getILm1ENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbERKNSt13tuple_elementIXT_ESt4pairIT0_T1_EE4typeERKSA_(ptr noundef nonnull align 8 dereferenceable(33)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt23_Rb_tree_const_iteratorISt4pairINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEbEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 = !{!"bool", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{i8 0, i8 2}
!10 = !{}


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