; LLVM IR from TheAlgorithms/C-Plus-Plus :: sorting/quick_sort_iterative.ll (ZN7sorting18iterativeQuickSortERSt6vectorIiSaIiEE)

; 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::stack" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN7sorting9partitionERSt6vectorIiSaIiEEii(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, i32 noundef) #0

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

; 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 @_ZN7sorting18iterativeQuickSortERSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24) %0) #2 personality ptr @__gxx_personality_v0 {
  %2 = alloca ptr, align 8
  %3 = alloca %"class.std::stack", align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 80, ptr %3) #4
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 0, ptr %4, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %11) #4
  %13 = sub i64 %12, 1
  %14 = trunc i64 %13 to i32
  store i32 %14, ptr %5, align 4, !tbaa !9
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %15 unwind label %43

15:                                               ; preds = %1
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %16 unwind label %43

16:                                               ; preds = %15
  br label %17

17:                                               ; preds = %69, %16
  %18 = invoke noundef zeroext i1 @_ZNKSt5stackIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %19 unwind label %43

19:                                               ; preds = %17
  %20 = xor i1 %18, true
  br i1 %20, label %21, label %71

21:                                               ; preds = %19
  %22 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %23 unwind label %43

23:                                               ; preds = %21
  %24 = load i32, ptr %22, align 4, !tbaa !9
  store i32 %24, ptr %5, align 4, !tbaa !9
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %25 unwind label %43

25:                                               ; preds = %23
  %26 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %27 unwind label %43

27:                                               ; preds = %25
  %28 = load i32, ptr %26, align 4, !tbaa !9
  store i32 %28, ptr %4, align 4, !tbaa !9
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
          to label %29 unwind label %43

29:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  %30 = load ptr, ptr %2, align 8, !tbaa !5
  %31 = load i32, ptr %4, align 4, !tbaa !9
  %32 = load i32, ptr %5, align 4, !tbaa !9
  %33 = call noundef i32 @_ZN7sorting9partitionERSt6vectorIiSaIiEEii(ptr noundef nonnull align 8 dereferenceable(24) %30, i32 noundef %31, i32 noundef %32)
  store i32 %33, ptr %8, align 4, !tbaa !9
  %34 = load i32, ptr %8, align 4, !tbaa !9
  %35 = sub nsw i32 %34, 1
  %36 = load i32, ptr %4, align 4, !tbaa !9
  %37 = icmp sgt i32 %35, %36
  br i1 %37, label %38, label %55

38:                                               ; preds = %29
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %39 unwind label %47

39:                                               ; preds = %38
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  %40 = load i32, ptr %8, align 4, !tbaa !9
  %41 = sub nsw i32 %40, 1
  store i32 %41, ptr %9, align 4, !tbaa !9
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 4 dereferenceable(4) %9)
          to label %42 unwind label %51

42:                                               ; preds = %39
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  br label %55

43:                                               ; preds = %27, %25, %23, %21, %17, %15, %1
  %44 = landingpad { ptr, i32 }
          cleanup
  %45 = extractvalue { ptr, i32 } %44, 0
  store ptr %45, ptr %6, align 8
  %46 = extractvalue { ptr, i32 } %44, 1
  store i32 %46, ptr %7, align 4
  br label %72

47:                                               ; preds = %63, %38
  %48 = landingpad { ptr, i32 }
          cleanup
  %49 = extractvalue { ptr, i32 } %48, 0
  store ptr %49, ptr %6, align 8
  %50 = extractvalue { ptr, i32 } %48, 1
  store i32 %50, ptr %7, align 4
  br label %70

51:                                               ; preds = %39
  %52 = landingpad { ptr, i32 }
          cleanup
  %53 = extractvalue { ptr, i32 } %52, 0
  store ptr %53, ptr %6, align 8
  %54 = extractvalue { ptr, i32 } %52, 1
  store i32 %54, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  br label %70

55:                                               ; preds = %42, %29
  %56 = load i32, ptr %8, align 4, !tbaa !9
  %57 = add nsw i32 %56, 1
  %58 = load i32, ptr %5, align 4, !tbaa !9
  %59 = icmp slt i32 %57, %58
  br i1 %59, label %60, label %69

60:                                               ; preds = %55
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #4
  %61 = load i32, ptr %8, align 4, !tbaa !9
  %62 = add nsw i32 %61, 1
  store i32 %62, ptr %10, align 4, !tbaa !9
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 4 dereferenceable(4) %10)
          to label %63 unwind label %65

63:                                               ; preds = %60
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %64 unwind label %47

64:                                               ; preds = %63
  br label %69

65:                                               ; preds = %60
  %66 = landingpad { ptr, i32 }
          cleanup
  %67 = extractvalue { ptr, i32 } %66, 0
  store ptr %67, ptr %6, align 8
  %68 = extractvalue { ptr, i32 } %66, 1
  store i32 %68, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #4
  br label %70

69:                                               ; preds = %64, %55
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  br label %17, !llvm.loop !11

70:                                               ; preds = %65, %51, %47
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  br label %72

71:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %3) #4
  ret void

72:                                               ; preds = %70, %43
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %3) #4
  br label %73

73:                                               ; preds = %72
  %74 = load ptr, ptr %6, align 8
  %75 = load i32, ptr %7, align 4
  %76 = insertvalue { ptr, i32 } poison, ptr %74, 0
  %77 = insertvalue { ptr, i32 } %76, i32 %75, 1
  resume { ptr, i32 } %77
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 4 dereferenceable(4)) #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5stackIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 4 dereferenceable(4)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 = { 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 = 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::stack" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl" = type { %"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" }
%"struct.std::_Deque_base<int, std::allocator<int>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN7sorting9partitionERSt6vectorIiSaIiEEii(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, i32 noundef) 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 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 @_ZN7sorting18iterativeQuickSortERSt6vectorIiSaIiEE(ptr noundef nonnull align 8 dereferenceable(24) %0) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %2 = alloca %"class.std::stack", align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %2) #4
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  store i32 0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #4
  %7 = call noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  %8 = trunc i64 %7 to i32
  %9 = add i32 %8, -1
  store i32 %9, ptr %4, align 4, !tbaa !5
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %10 unwind label %25

10:                                               ; preds = %1
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %.preheader unwind label %25

.preheader:                                       ; preds = %10
  %11 = call noundef zeroext i1 @_ZNKSt5stackIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  br i1 %11, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader, %39
  %12 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %13 = load i32, ptr %12, align 4, !tbaa !5
  store i32 %13, ptr %4, align 4, !tbaa !5
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %14 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %15 = load i32, ptr %14, align 4, !tbaa !5
  store i32 %15, ptr %3, align 4, !tbaa !5
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  %16 = load i32, ptr %3, align 4, !tbaa !5
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = call noundef i32 @_ZN7sorting9partitionERSt6vectorIiSaIiEEii(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef %16, i32 noundef %17)
  %19 = add nsw i32 %18, -1
  %20 = load i32, ptr %3, align 4, !tbaa !5
  %21 = icmp sgt i32 %19, %20
  br i1 %21, label %22, label %31

22:                                               ; preds = %.lr.ph
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 4 dereferenceable(4) %3)
          to label %23 unwind label %27

23:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #4
  store i32 %19, ptr %5, align 4, !tbaa !5
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 4 dereferenceable(4) %5)
          to label %24 unwind label %29

24:                                               ; preds = %23
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #4
  br label %31

25:                                               ; preds = %10, %1
  %26 = landingpad { ptr, i32 }
          cleanup
  br label %41

27:                                               ; preds = %36, %22
  %28 = landingpad { ptr, i32 }
          cleanup
  br label %41

29:                                               ; preds = %23
  %30 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #4
  br label %41

31:                                               ; preds = %24, %.lr.ph
  %32 = add nsw i32 %18, 1
  %33 = load i32, ptr %4, align 4, !tbaa !5
  %34 = icmp slt i32 %32, %33
  br i1 %34, label %35, label %39

35:                                               ; preds = %31
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #4
  store i32 %32, ptr %6, align 4, !tbaa !5
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 4 dereferenceable(4) %6)
          to label %36 unwind label %37

36:                                               ; preds = %35
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #4
  invoke void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80) %2, ptr noundef nonnull align 4 dereferenceable(4) %4)
          to label %39 unwind label %27

37:                                               ; preds = %35
  %38 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #4
  br label %41

39:                                               ; preds = %36, %31
  %40 = call noundef zeroext i1 @_ZNKSt5stackIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %2)
  br i1 %40, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %39, %.preheader
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %2) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %2) #4
  ret void

41:                                               ; preds = %27, %29, %37, %25
  %.pn.pn = phi { ptr, i32 } [ %26, %25 ], [ %28, %27 ], [ %38, %37 ], [ %30, %29 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  call void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %2) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %2) #4
  resume { ptr, i32 } %.pn.pn
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIiSaIiEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushERKi(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5stackIiSt5dequeIiSaIiEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5stackIiSt5dequeIiSaIiEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEE4pushEOi(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIiSt5dequeIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

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


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