; LLVM IR from Leet-Us-Code/DSA-A-Z-Practice :: Sid's Levels/Level - 1/Stacks_Queue_Dequeue (LargestRectangularArea)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::stack" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl" }
%"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl" = type { %"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl_data" }
%"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIxEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEEC2EmRKxRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 8 dereferenceable(8), 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) #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIxSt5dequeIxSaIxEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIxSt5dequeIxSaIxEEE4pushEOx(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5stackIxSt5dequeIxSaIxEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5stackIxSt5dequeIxSaIxEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIxSt5dequeIxSaIxEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIxSt5dequeIxSaIxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z19getNextSmallestLeftSt6vectorIxSaIxEE(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8 %0, ptr noundef %1) #2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %"class.std::stack", align 8
  %7 = alloca i1, align 1
  %8 = alloca i64, align 8
  %9 = alloca %"class.std::allocator", align 1
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i64, align 8
  %13 = alloca i32, align 4
  %14 = alloca i64, align 8
  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) #4
  %15 = call noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #4
  %16 = trunc i64 %15 to i32
  store i32 %16, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 80, ptr %6) #4
  call void @_ZNSt5stackIxSt5dequeIxSaIxEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %6)
  store i1 false, ptr %7, align 1
  %17 = load i32, ptr %5, align 4, !tbaa !9
  %18 = sext i32 %17 to i64
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  store i64 -1, ptr %8, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #4
  call void @_ZNSaIxEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  invoke void @_ZNSt6vectorIxSaIxEEC2EmRKxRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %18, ptr noundef nonnull align 8 dereferenceable(8) %8, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %19 unwind label %30

19:                                               ; preds = %2
  call void @_ZNSt15__new_allocatorIxED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #4
  %20 = load i32, ptr %5, align 4, !tbaa !9
  %21 = sub nsw i32 %20, 1
  %22 = sext i32 %21 to i64
  store i64 %22, ptr %12, align 8, !tbaa !11
  invoke void @_ZNSt5stackIxSt5dequeIxSaIxEEE4pushEOx(ptr noundef nonnull align 8 dereferenceable(80) %6, ptr noundef nonnull align 8 dereferenceable(8) %12)
          to label %23 unwind label %34

23:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #4
  %24 = load i32, ptr %5, align 4, !tbaa !9
  %25 = sub nsw i32 %24, 2
  store i32 %25, ptr %13, align 4, !tbaa !9
  br label %26

26:                                               ; preds = %71, %23
  %27 = load i32, ptr %13, align 4, !tbaa !9
  %28 = icmp sge i32 %27, 0
  br i1 %28, label %38, label %29

29:                                               ; preds = %26
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  br label %79

30:                                               ; preds = %2
  %31 = landingpad { ptr, i32 }
          cleanup
  %32 = extractvalue { ptr, i32 } %31, 0
  store ptr %32, ptr %10, align 8
  %33 = extractvalue { ptr, i32 } %31, 1
  store i32 %33, ptr %11, align 4
  call void @_ZNSt15__new_allocatorIxED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  br label %99

34:                                               ; preds = %19
  %35 = landingpad { ptr, i32 }
          cleanup
  %36 = extractvalue { ptr, i32 } %35, 0
  store ptr %36, ptr %10, align 8
  %37 = extractvalue { ptr, i32 } %35, 1
  store i32 %37, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #4
  br label %98

38:                                               ; preds = %26
  br label %39

39:                                               ; preds = %62, %38
  %40 = invoke noundef zeroext i1 @_ZNKSt5stackIxSt5dequeIxSaIxEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %6)
          to label %41 unwind label %63

41:                                               ; preds = %39
  br i1 %40, label %53, label %42

42:                                               ; preds = %41
  %43 = load i32, ptr %13, align 4, !tbaa !9
  %44 = sext i32 %43 to i64
  %45 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %44) #4
  %46 = load i64, ptr %45, align 8, !tbaa !11
  %47 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5stackIxSt5dequeIxSaIxEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %6)
          to label %48 unwind label %63

48:                                               ; preds = %42
  %49 = load i64, ptr %47, align 8, !tbaa !11
  %50 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %49) #4
  %51 = load i64, ptr %50, align 8, !tbaa !11
  %52 = icmp slt i64 %46, %51
  br label %53

53:                                               ; preds = %48, %41
  %54 = phi i1 [ false, %41 ], [ %52, %48 ]
  br i1 %54, label %55, label %67

55:                                               ; preds = %53
  %56 = load i32, ptr %13, align 4, !tbaa !9
  %57 = sext i32 %56 to i64
  %58 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5stackIxSt5dequeIxSaIxEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %6)
          to label %59 unwind label %63

59:                                               ; preds = %55
  %60 = load i64, ptr %58, align 8, !tbaa !11
  %61 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %60) #4
  store i64 %57, ptr %61, align 8, !tbaa !11
  invoke void @_ZNSt5stackIxSt5dequeIxSaIxEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %6)
          to label %62 unwind label %63

62:                                               ; preds = %59
  br label %39, !llvm.loop !13

63:                                               ; preds = %59, %55, %42, %39
  %64 = landingpad { ptr, i32 }
          cleanup
  %65 = extractvalue { ptr, i32 } %64, 0
  store ptr %65, ptr %10, align 8
  %66 = extractvalue { ptr, i32 } %64, 1
  store i32 %66, ptr %11, align 4
  br label %78

67:                                               ; preds = %53
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #4
  %68 = load i32, ptr %13, align 4, !tbaa !9
  %69 = sext i32 %68 to i64
  store i64 %69, ptr %14, align 8, !tbaa !11
  invoke void @_ZNSt5stackIxSt5dequeIxSaIxEEE4pushEOx(ptr noundef nonnull align 8 dereferenceable(80) %6, ptr noundef nonnull align 8 dereferenceable(8) %14)
          to label %70 unwind label %74

70:                                               ; preds = %67
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #4
  br label %71

71:                                               ; preds = %70
  %72 = load i32, ptr %13, align 4, !tbaa !9
  %73 = add nsw i32 %72, -1
  store i32 %73, ptr %13, align 4, !tbaa !9
  br label %26, !llvm.loop !15

74:                                               ; preds = %67
  %75 = landingpad { ptr, i32 }
          cleanup
  %76 = extractvalue { ptr, i32 } %75, 0
  store ptr %76, ptr %10, align 8
  %77 = extractvalue { ptr, i32 } %75, 1
  store i32 %77, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #4
  br label %78

78:                                               ; preds = %74, %63
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #4
  br label %98

79:                                               ; preds = %29
  br label %80

80:                                               ; preds = %89, %79
  %81 = invoke noundef zeroext i1 @_ZNKSt5stackIxSt5dequeIxSaIxEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %6)
          to label %82 unwind label %90

82:                                               ; preds = %80
  %83 = xor i1 %81, true
  br i1 %83, label %84, label %94

84:                                               ; preds = %82
  %85 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5stackIxSt5dequeIxSaIxEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %6)
          to label %86 unwind label %90

86:                                               ; preds = %84
  %87 = load i64, ptr %85, align 8, !tbaa !11
  %88 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %87) #4
  store i64 0, ptr %88, align 8, !tbaa !11
  invoke void @_ZNSt5stackIxSt5dequeIxSaIxEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %6)
          to label %89 unwind label %90

89:                                               ; preds = %86
  br label %80, !llvm.loop !16

90:                                               ; preds = %86, %84, %80
  %91 = landingpad { ptr, i32 }
          cleanup
  %92 = extractvalue { ptr, i32 } %91, 0
  store ptr %92, ptr %10, align 8
  %93 = extractvalue { ptr, i32 } %91, 1
  store i32 %93, ptr %11, align 4
  br label %98

94:                                               ; preds = %82
  store i1 true, ptr %7, align 1
  %95 = load i1, ptr %7, align 1
  br i1 %95, label %97, label %96

96:                                               ; preds = %94
  call void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  br label %97

97:                                               ; preds = %96, %94
  call void @_ZNSt5stackIxSt5dequeIxSaIxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %6) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  ret void

98:                                               ; preds = %90, %78, %34
  call void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  br label %99

99:                                               ; preds = %98, %30
  call void @_ZNSt5stackIxSt5dequeIxSaIxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %6) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %100

100:                                              ; preds = %99
  %101 = load ptr, ptr %10, align 8
  %102 = load i32, ptr %11, align 4
  %103 = insertvalue { ptr, i32 } poison, ptr %101, 0
  %104 = insertvalue { ptr, i32 } %103, i32 %102, 1
  resume { ptr, i32 } %104
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIxED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #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 = { 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 = !{!12, !12, i64 0}
!12 = !{!"long long", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = distinct !{!15, !14}
!16 = distinct !{!16, !14}


; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl" = type { %"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" }
%"struct.std::_Vector_base<long long, std::allocator<long long>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::stack" = type { %"class.std::deque" }
%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl" }
%"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl" = type { %"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl_data" }
%"struct.std::_Deque_base<long long, std::allocator<long long>>::_Deque_impl_data" = type { ptr, i64, %"struct.std::_Deque_iterator", %"struct.std::_Deque_iterator" }
%"struct.std::_Deque_iterator" = type { ptr, ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }

; 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 nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIxEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEEC2EmRKxRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 8 dereferenceable(8), 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) #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIxSt5dequeIxSaIxEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5stackIxSt5dequeIxSaIxEEE4pushEOx(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNKSt5stackIxSt5dequeIxSaIxEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5stackIxSt5dequeIxSaIxEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIxSt5dequeIxSaIxEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt5stackIxSt5dequeIxSaIxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z19getNextSmallestLeftSt6vectorIxSaIxEE(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8 %0, ptr noundef nonnull %1) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::stack", align 8
  %4 = alloca i64, align 8
  %5 = alloca %"class.std::allocator", align 1
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = tail call noundef i64 @_ZNKSt6vectorIxSaIxEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %1) #4
  %9 = trunc i64 %8 to i32
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %3) #4
  call void @_ZNSt5stackIxSt5dequeIxSaIxEEEC2IS2_vEEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  %sext = shl i64 %8, 32
  %10 = ashr exact i64 %sext, 32
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  store i64 -1, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #4
  call void @_ZNSaIxEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  invoke void @_ZNSt6vectorIxSaIxEEC2EmRKxRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %10, ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %11 unwind label %19

11:                                               ; preds = %2
  call void @_ZNSt15__new_allocatorIxED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #4
  %sext13 = add i64 %sext, -4294967296
  %12 = ashr exact i64 %sext13, 32
  store i64 %12, ptr %6, align 8, !tbaa !5
  invoke void @_ZNSt5stackIxSt5dequeIxSaIxEEE4pushEOx(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %6)
          to label %13 unwind label %21

13:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  %14 = icmp sgt i32 %9, 1
  br i1 %14, label %.preheader16.preheader, label %.preheader

.preheader16.preheader:                           ; preds = %13
  %15 = add i64 %8, 4294967294
  %16 = and i64 %15, 4294967295
  br label %.preheader16

.preheader16:                                     ; preds = %.preheader16.preheader, %35
  %indvars.iv = phi i64 [ %16, %.preheader16.preheader ], [ %indvars.iv.next, %35 ]
  %17 = call noundef zeroext i1 @_ZNKSt5stackIxSt5dequeIxSaIxEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  br i1 %17, label %.critedge, label %.lr.ph

.preheader:                                       ; preds = %35, %13
  %18 = call noundef zeroext i1 @_ZNKSt5stackIxSt5dequeIxSaIxEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  br i1 %18, label %._crit_edge, label %.lr.ph19

19:                                               ; preds = %2
  %20 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIxED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  br label %44

21:                                               ; preds = %11
  %22 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  br label %43

.lr.ph:                                           ; preds = %.preheader16, %30
  %23 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %indvars.iv) #4
  %24 = load i64, ptr %23, align 8, !tbaa !5
  %25 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5stackIxSt5dequeIxSaIxEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  %26 = load i64, ptr %25, align 8, !tbaa !5
  %27 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %1, i64 noundef %26) #4
  %28 = load i64, ptr %27, align 8, !tbaa !5
  %29 = icmp slt i64 %24, %28
  br i1 %29, label %30, label %.critedge

30:                                               ; preds = %.lr.ph
  %31 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5stackIxSt5dequeIxSaIxEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  %32 = load i64, ptr %31, align 8, !tbaa !5
  %33 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %32) #4
  store i64 %indvars.iv, ptr %33, align 8, !tbaa !5
  call void @_ZNSt5stackIxSt5dequeIxSaIxEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  %34 = call noundef zeroext i1 @_ZNKSt5stackIxSt5dequeIxSaIxEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  br i1 %34, label %.critedge, label %.lr.ph, !llvm.loop !9

.critedge:                                        ; preds = %.lr.ph, %30, %.preheader16
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #4
  store i64 %indvars.iv, ptr %7, align 8, !tbaa !5
  invoke void @_ZNSt5stackIxSt5dequeIxSaIxEEE4pushEOx(ptr noundef nonnull align 8 dereferenceable(80) %3, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %35 unwind label %37

35:                                               ; preds = %.critedge
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #4
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  %36 = icmp sgt i64 %indvars.iv, 0
  br i1 %36, label %.preheader16, label %.preheader, !llvm.loop !11

37:                                               ; preds = %.critedge
  %38 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #4
  br label %43

.lr.ph19:                                         ; preds = %.preheader, %.lr.ph19
  %39 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt5stackIxSt5dequeIxSaIxEEE3topEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  %40 = load i64, ptr %39, align 8, !tbaa !5
  %41 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSt6vectorIxSaIxEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %40) #4
  store i64 0, ptr %41, align 8, !tbaa !5
  call void @_ZNSt5stackIxSt5dequeIxSaIxEEE3popEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  %42 = call noundef zeroext i1 @_ZNKSt5stackIxSt5dequeIxSaIxEEE5emptyEv(ptr noundef nonnull align 8 dereferenceable(80) %3)
  br i1 %42, label %._crit_edge, label %.lr.ph19, !llvm.loop !12

._crit_edge:                                      ; preds = %.lr.ph19, %.preheader
  call void @_ZNSt5stackIxSt5dequeIxSaIxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %3) #4
  ret void

43:                                               ; preds = %37, %21
  %.pn = phi { ptr, i32 } [ %38, %37 ], [ %22, %21 ]
  call void @_ZNSt6vectorIxSaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #4
  br label %44

44:                                               ; preds = %43, %19
  %.pn.pn = phi { ptr, i32 } [ %.pn, %43 ], [ %20, %19 ]
  call void @_ZNSt5stackIxSt5dequeIxSaIxEEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #4
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %3) #4
  resume { ptr, i32 } %.pn.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIxED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) 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 = { 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 = !{!"long long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


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