; LLVM IR from alekras/ao.rtos.cpp :: Library/hex2bin (main_efsm)

; 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_ifstream" = type { %"class.std::basic_istream.base", %"class.std::basic_filebuf", %"class.std::basic_ios" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::basic_filebuf" = type { %"class.std::basic_streambuf", %union.pthread_mutex_t, %"class.std::__basic_file", i32, %struct.__mbstate_t, %struct.__mbstate_t, %struct.__mbstate_t, ptr, i64, i8, i8, i8, i8, ptr, ptr, i8, ptr, ptr, i64, ptr, ptr }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, ptr }
%"class.std::__basic_file" = type <{ ptr, i8, [7 x i8] }>
%struct.__mbstate_t = type { i32, %union.anon }
%union.anon = type { i32 }
%class.Hex2BinEFSMachine = type { %class.Efsm, i32, i32, i32, i32, i32, [256 x i8], i32, i32, i32, i32, ptr, i32, i32, %class.FormatParser }
%class.Efsm = type { { i64, i64 } }
%class.FormatParser = type { %class.Fsm, ptr, ptr, i32, i32, [1 x %struct.__va_list_tag] }
%class.Fsm = type { { i64, i64 } }
%struct.__va_list_tag = type { i32, i32, ptr, ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.10 = external hidden unnamed_addr constant [25 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [26 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.13 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.14 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.15 = external hidden unnamed_addr constant [9 x i8], align 1

; 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 norecurse uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr noundef %1) #1 personality ptr @__gxx_personality_v0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca %"class.std::basic_ifstream", align 8
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i8, align 1
  %12 = alloca %class.Hex2BinEFSMachine, align 8
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  %13 = load i32, ptr %4, align 4, !tbaa !5
  %14 = icmp ne i32 %13, 2
  br i1 %14, label %15, label %17

15:                                               ; preds = %2
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.10)
  store i32 -1, ptr %3, align 4
  br label %64

17:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #7
  %18 = load ptr, ptr %5, align 8, !tbaa !9
  %19 = getelementptr inbounds ptr, ptr %18, i64 1
  %20 = load ptr, ptr %19, align 8, !tbaa !9
  store ptr %20, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 520, ptr %7) #7
  %21 = load ptr, ptr %6, align 8, !tbaa !9
  %22 = call noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef 8, i32 noundef 4)
  call void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(256) %7, ptr noundef %21, i32 noundef %22)
  %23 = invoke noundef zeroext i1 @_ZNSt14basic_ifstreamIcSt11char_traitsIcEE7is_openEv(ptr noundef nonnull align 8 dereferenceable(256) %7)
          to label %24 unwind label %33

24:                                               ; preds = %17
  br i1 %23, label %37, label %25

25:                                               ; preds = %24
  %26 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.11)
          to label %27 unwind label %33

27:                                               ; preds = %25
  %28 = load ptr, ptr %6, align 8, !tbaa !9
  %29 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %26, ptr noundef %28)
          to label %30 unwind label %33

30:                                               ; preds = %27
  %31 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %29, ptr noundef @.str.12)
          to label %32 unwind label %33

32:                                               ; preds = %30
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %10, align 4
  br label %62

33:                                               ; preds = %42, %39, %37, %30, %27, %25, %17
  %34 = landingpad { ptr, i32 }
          cleanup
  %35 = extractvalue { ptr, i32 } %34, 0
  store ptr %35, ptr %8, align 8
  %36 = extractvalue { ptr, i32 } %34, 1
  store i32 %36, ptr %9, align 4
  br label %63

37:                                               ; preds = %24
  %38 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.13)
          to label %39 unwind label %33

39:                                               ; preds = %37
  %40 = load ptr, ptr %6, align 8, !tbaa !9
  %41 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %38, ptr noundef %40)
          to label %42 unwind label %33

42:                                               ; preds = %39
  %43 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %41, ptr noundef @.str.14)
          to label %44 unwind label %33

44:                                               ; preds = %42
  call void @llvm.lifetime.start.p0(i64 1, ptr %11) #7
  call void @llvm.lifetime.start.p0(i64 392, ptr %12) #7
  invoke void @_ZN17Hex2BinEFSMachineC1Ev(ptr noundef nonnull align 8 dereferenceable(392) %12)
          to label %45 unwind label %53

45:                                               ; preds = %44
  br label %46

46:                                               ; preds = %58, %45
  %47 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi4readEPcl(ptr noundef nonnull align 8 dereferenceable(16) %7, ptr noundef %11, i64 noundef 1)
          to label %48 unwind label %53

48:                                               ; preds = %46
  %49 = invoke noundef i32 @_ZN4EfsmIcE8dispatchEPc(ptr noundef nonnull align 8 dereferenceable(16) %12, ptr noundef %11)
          to label %50 unwind label %53

50:                                               ; preds = %48
  %51 = icmp sgt i32 %49, 0
  br i1 %51, label %52, label %57

52:                                               ; preds = %50
  br label %59

53:                                               ; preds = %59, %48, %46, %44
  %54 = landingpad { ptr, i32 }
          cleanup
  %55 = extractvalue { ptr, i32 } %54, 0
  store ptr %55, ptr %8, align 8
  %56 = extractvalue { ptr, i32 } %54, 1
  store i32 %56, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 392, ptr %12) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #7
  br label %63

57:                                               ; preds = %50
  br label %58

58:                                               ; preds = %57
  br i1 true, label %46, label %59, !llvm.loop !11

59:                                               ; preds = %58, %52
  %60 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.15)
          to label %61 unwind label %53

61:                                               ; preds = %59
  store i32 0, ptr %3, align 4
  store i32 1, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 392, ptr %12) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #7
  br label %62

62:                                               ; preds = %61, %32
  call void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256) %7) #7
  call void @llvm.lifetime.end.p0(i64 520, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #7
  br label %64

63:                                               ; preds = %53, %33
  call void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256) %7) #7
  call void @llvm.lifetime.end.p0(i64 520, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #7
  br label %66

64:                                               ; preds = %62, %15
  %65 = load i32, ptr %3, align 4
  ret i32 %65

66:                                               ; preds = %63
  %67 = load ptr, ptr %8, align 8
  %68 = load i32, ptr %9, align 4
  %69 = insertvalue { ptr, i32 } poison, ptr %67, 0
  %70 = insertvalue { ptr, i32 } %69, i32 %68, 1
  resume { ptr, i32 } %70
}

; 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) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef, i32 noundef) #3

; Function Attrs: mustprogress uwtable
declare void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(256), ptr noundef, i32 noundef) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef zeroext i1 @_ZNSt14basic_ifstreamIcSt11char_traitsIcEE7is_openEv(ptr noundef nonnull align 8 dereferenceable(256)) #5 align 2

declare i32 @__gxx_personality_v0(...)

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi4readEPcl(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef, i64 noundef) #6

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN4EfsmIcE8dispatchEPc(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256)) unnamed_addr #5 align 2

declare void @_ZN17Hex2BinEFSMachineC1Ev(ptr)

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 #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 = { 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 #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 = { "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 #7 = { nounwind }

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

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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::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_ifstream" = type { %"class.std::basic_istream.base", %"class.std::basic_filebuf", %"class.std::basic_ios" }
%"class.std::basic_istream.base" = type { ptr, i64 }
%"class.std::basic_filebuf" = type { %"class.std::basic_streambuf", %union.pthread_mutex_t, %"class.std::__basic_file", i32, %struct.__mbstate_t, %struct.__mbstate_t, %struct.__mbstate_t, ptr, i64, i8, i8, i8, i8, ptr, ptr, i8, ptr, ptr, i64, ptr, ptr }
%"class.std::basic_streambuf" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, %"class.std::locale" }
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, ptr }
%"class.std::__basic_file" = type <{ ptr, i8, [7 x i8] }>
%struct.__mbstate_t = type { i32, %union.anon }
%union.anon = type { i32 }
%class.Hex2BinEFSMachine = type { %class.Efsm, i32, i32, i32, i32, i32, [256 x i8], i32, i32, i32, i32, ptr, i32, i32, %class.FormatParser }
%class.Efsm = type { { i64, i64 } }
%class.FormatParser = type { %class.Fsm, ptr, ptr, i32, i32, [1 x %struct.__va_list_tag] }
%class.Fsm = type { { i64, i64 } }
%struct.__va_list_tag = type { i32, i32, ptr, ptr }

@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.10 = external hidden unnamed_addr constant [25 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [26 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.13 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.14 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.15 = external hidden unnamed_addr constant [9 x i8], align 1

; 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 norecurse uwtable
define dso_local noundef range(i32 -1, 1) i32 @main(i32 noundef %0, ptr nocapture noundef readonly %1) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::basic_ifstream", align 8
  %4 = alloca i8, align 1
  %5 = alloca %class.Hex2BinEFSMachine, align 8
  %.not = icmp eq i32 %0, 2
  br i1 %.not, label %8, label %6

6:                                                ; preds = %2
  %7 = tail 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.10)
  br label %39

8:                                                ; preds = %2
  %9 = getelementptr inbounds i8, ptr %1, i64 8
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 520, ptr nonnull %3) #7
  %11 = tail call noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef 8, i32 noundef 4)
  call void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(256) %3, ptr noundef %10, i32 noundef %11)
  %12 = call noundef zeroext i1 @_ZNSt14basic_ifstreamIcSt11char_traitsIcEE7is_openEv(ptr noundef nonnull align 8 dereferenceable(256) %3)
  br i1 %12, label %21, label %13

13:                                               ; preds = %8
  %14 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.11)
          to label %15 unwind label %19

15:                                               ; preds = %13
  %16 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %14, ptr noundef %10)
          to label %17 unwind label %19

17:                                               ; preds = %15
  %18 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %16, ptr noundef nonnull @.str.12)
          to label %37 unwind label %19

19:                                               ; preds = %25, %23, %21, %17, %15, %13
  %20 = landingpad { ptr, i32 }
          cleanup
  br label %38

21:                                               ; preds = %8
  %22 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.13)
          to label %23 unwind label %19

23:                                               ; preds = %21
  %24 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %22, ptr noundef %10)
          to label %25 unwind label %19

25:                                               ; preds = %23
  %26 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %24, ptr noundef nonnull @.str.14)
          to label %27 unwind label %19

27:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %4) #7
  call void @llvm.lifetime.start.p0(i64 392, ptr nonnull %5) #7
  invoke void @_ZN17Hex2BinEFSMachineC1Ev(ptr noundef nonnull align 8 dereferenceable(392) %5)
          to label %.preheader unwind label %.loopexit.split-lp

.preheader:                                       ; preds = %27, %31
  %28 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi4readEPcl(ptr noundef nonnull align 8 dereferenceable(16) %3, ptr noundef nonnull %4, i64 noundef 1)
          to label %29 unwind label %.loopexit

29:                                               ; preds = %.preheader
  %30 = invoke noundef i32 @_ZN4EfsmIcE8dispatchEPc(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull %4)
          to label %31 unwind label %.loopexit

31:                                               ; preds = %29
  %32 = icmp sgt i32 %30, 0
  br i1 %32, label %34, label %.preheader, !llvm.loop !9

.loopexit:                                        ; preds = %.preheader, %29
  %lpad.loopexit = landingpad { ptr, i32 }
          cleanup
  br label %33

.loopexit.split-lp:                               ; preds = %27, %34
  %lpad.loopexit.split-lp = landingpad { ptr, i32 }
          cleanup
  br label %33

33:                                               ; preds = %.loopexit.split-lp, %.loopexit
  %lpad.phi = phi { ptr, i32 } [ %lpad.loopexit, %.loopexit ], [ %lpad.loopexit.split-lp, %.loopexit.split-lp ]
  call void @llvm.lifetime.end.p0(i64 392, ptr nonnull %5) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #7
  br label %38

34:                                               ; preds = %31
  %35 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str.15)
          to label %36 unwind label %.loopexit.split-lp

36:                                               ; preds = %34
  call void @llvm.lifetime.end.p0(i64 392, ptr nonnull %5) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %4) #7
  br label %37

37:                                               ; preds = %17, %36
  %.08 = phi i32 [ 0, %36 ], [ -1, %17 ]
  call void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256) %3) #7
  call void @llvm.lifetime.end.p0(i64 520, ptr nonnull %3) #7
  br label %39

38:                                               ; preds = %33, %19
  %.pn = phi { ptr, i32 } [ %lpad.phi, %33 ], [ %20, %19 ]
  call void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256) %3) #7
  call void @llvm.lifetime.end.p0(i64 520, ptr nonnull %3) #7
  resume { ptr, i32 } %.pn

39:                                               ; preds = %37, %6
  %.1 = phi i32 [ -1, %6 ], [ %.08, %37 ]
  ret i32 %.1
}

; 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 #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZStorSt13_Ios_OpenmodeS_(i32 noundef, i32 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
declare void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEEC1EPKcSt13_Ios_Openmode(ptr noundef nonnull align 8 dereferenceable(256), ptr noundef, i32 noundef) unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef zeroext i1 @_ZNSt14basic_ifstreamIcSt11char_traitsIcEE7is_openEv(ptr noundef nonnull align 8 dereferenceable(256)) local_unnamed_addr #5 align 2

declare i32 @__gxx_personality_v0(...)

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSi4readEPcl(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef, i64 noundef) local_unnamed_addr #6

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_ZN4EfsmIcE8dispatchEPc(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt14basic_ifstreamIcSt11char_traitsIcEED1Ev(ptr noundef nonnull align 8 dereferenceable(256)) unnamed_addr #5 align 2

declare void @_ZN17Hex2BinEFSMachineC1Ev(ptr) local_unnamed_addr

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 #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 = { 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 #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 = { "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 #7 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass