; LLVM IR from plskz/competitive-programming :: Junior Training Sheet/A (13)

; 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_istream" = type { ptr, i64, %"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_ostream" = type { ptr, %"class.std::basic_ios" }
%"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 }
%"class.std::allocator" = type { i8 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::deque", align 8
  %4 = alloca %"class.std::allocator", align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca %"struct.std::_Deque_iterator", align 8
  %9 = alloca %"struct.std::_Deque_iterator", align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %14 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %15 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %16 = getelementptr i8, ptr %15, i64 -24
  %17 = load i64, ptr %16, align 8
  %18 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %17
  %19 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %18, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  %20 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  call void @llvm.lifetime.start.p0(i64 80, ptr %3) #7
  %21 = load i32, ptr %2, align 4, !tbaa !8
  %22 = sext i32 %21 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #7
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #7
  invoke void @_ZNSt5dequeIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(80) %3, i64 noundef %22, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %23 unwind label %29

23:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #7
  store ptr %3, ptr %7, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 32, ptr %8) #7
  %24 = load ptr, ptr %7, align 8, !tbaa !11
  call void @_ZNSt5dequeIiSaIiEE5beginEv(ptr dead_on_unwind writable sret(%"struct.std::_Deque_iterator") align 8 %8, ptr noundef nonnull align 8 dereferenceable(80) %24) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr %9) #7
  %25 = load ptr, ptr %7, align 8, !tbaa !11
  call void @_ZNSt5dequeIiSaIiEE3endEv(ptr dead_on_unwind writable sret(%"struct.std::_Deque_iterator") align 8 %9, ptr noundef nonnull align 8 dereferenceable(80) %25) #7
  br label %26

26:                                               ; preds = %38, %23
  %27 = call noundef zeroext i1 @_ZStneRKSt15_Deque_iteratorIiRiPiES4_(ptr noundef nonnull align 8 dereferenceable(32) %8, ptr noundef nonnull align 8 dereferenceable(32) %9) #7
  br i1 %27, label %33, label %28

28:                                               ; preds = %26
  call void @llvm.lifetime.end.p0(i64 32, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #7
  br label %44

29:                                               ; preds = %0
  %30 = landingpad { ptr, i32 }
          cleanup
  %31 = extractvalue { ptr, i32 } %30, 0
  store ptr %31, ptr %5, align 8
  %32 = extractvalue { ptr, i32 } %30, 1
  store i32 %32, ptr %6, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #7
  br label %102

33:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #7
  %34 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt15_Deque_iteratorIiRiPiEdeEv(ptr noundef nonnull align 8 dereferenceable(32) %8) #7
  store ptr %34, ptr %10, align 8, !tbaa !11
  %35 = load ptr, ptr %10, align 8, !tbaa !11
  %36 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %35)
          to label %37 unwind label %40

37:                                               ; preds = %33
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #7
  br label %38

38:                                               ; preds = %37
  %39 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt15_Deque_iteratorIiRiPiEppEv(ptr noundef nonnull align 8 dereferenceable(32) %8) #7
  br label %26

40:                                               ; preds = %33
  %41 = landingpad { ptr, i32 }
          cleanup
  %42 = extractvalue { ptr, i32 } %41, 0
  store ptr %42, ptr %5, align 8
  %43 = extractvalue { ptr, i32 } %41, 1
  store i32 %43, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %8) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #7
  br label %101

44:                                               ; preds = %28
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #7
  store i32 0, ptr %11, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #7
  store i32 0, ptr %12, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #7
  store i32 0, ptr %13, align 4, !tbaa !8
  br label %45

45:                                               ; preds = %83, %44
  %46 = load i32, ptr %13, align 4, !tbaa !8
  %47 = load i32, ptr %2, align 4, !tbaa !8
  %48 = icmp slt i32 %46, %47
  br i1 %48, label %50, label %49

49:                                               ; preds = %45
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  br label %86

50:                                               ; preds = %45
  %51 = load i32, ptr %13, align 4, !tbaa !8
  %52 = and i32 %51, 1
  %53 = icmp ne i32 %52, 0
  br i1 %53, label %54, label %66

54:                                               ; preds = %50
  %55 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5dequeIiSaIiEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %3) #7
  %56 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5dequeIiSaIiEE4backEv(ptr noundef nonnull align 8 dereferenceable(80) %3) #7
  %57 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %55, ptr noundef nonnull align 4 dereferenceable(4) %56)
          to label %58 unwind label %62

58:                                               ; preds = %54
  %59 = load i32, ptr %57, align 4, !tbaa !8
  %60 = load i32, ptr %12, align 4, !tbaa !8
  %61 = add nsw i32 %60, %59
  store i32 %61, ptr %12, align 4, !tbaa !8
  br label %74

62:                                               ; preds = %66, %54
  %63 = landingpad { ptr, i32 }
          cleanup
  %64 = extractvalue { ptr, i32 } %63, 0
  store ptr %64, ptr %5, align 8
  %65 = extractvalue { ptr, i32 } %63, 1
  store i32 %65, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #7
  br label %100

66:                                               ; preds = %50
  %67 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5dequeIiSaIiEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %3) #7
  %68 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5dequeIiSaIiEE4backEv(ptr noundef nonnull align 8 dereferenceable(80) %3) #7
  %69 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %67, ptr noundef nonnull align 4 dereferenceable(4) %68)
          to label %70 unwind label %62

70:                                               ; preds = %66
  %71 = load i32, ptr %69, align 4, !tbaa !8
  %72 = load i32, ptr %11, align 4, !tbaa !8
  %73 = add nsw i32 %72, %71
  store i32 %73, ptr %11, align 4, !tbaa !8
  br label %74

74:                                               ; preds = %70, %58
  %75 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5dequeIiSaIiEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %3) #7
  %76 = load i32, ptr %75, align 4, !tbaa !8
  %77 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5dequeIiSaIiEE4backEv(ptr noundef nonnull align 8 dereferenceable(80) %3) #7
  %78 = load i32, ptr %77, align 4, !tbaa !8
  %79 = icmp sgt i32 %76, %78
  br i1 %79, label %80, label %81

80:                                               ; preds = %74
  call void @_ZNSt5dequeIiSaIiEE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(80) %3) #7
  br label %82

81:                                               ; preds = %74
  call void @_ZNSt5dequeIiSaIiEE8pop_backEv(ptr noundef nonnull align 8 dereferenceable(80) %3) #7
  br label %82

82:                                               ; preds = %81, %80
  br label %83

83:                                               ; preds = %82
  %84 = load i32, ptr %13, align 4, !tbaa !8
  %85 = add nsw i32 %84, 1
  store i32 %85, ptr %13, align 4, !tbaa !8
  br label %45, !llvm.loop !13

86:                                               ; preds = %49
  %87 = load i32, ptr %11, align 4, !tbaa !8
  %88 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %87)
          to label %89 unwind label %96

89:                                               ; preds = %86
  %90 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %88, i8 noundef signext 32)
          to label %91 unwind label %96

91:                                               ; preds = %89
  %92 = load i32, ptr %12, align 4, !tbaa !8
  %93 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %90, i32 noundef %92)
          to label %94 unwind label %96

94:                                               ; preds = %91
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #7
  call void @_ZNSt5dequeIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #7
  call void @llvm.lifetime.end.p0(i64 80, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  %95 = load i32, ptr %1, align 4
  ret i32 %95

96:                                               ; preds = %91, %89, %86
  %97 = landingpad { ptr, i32 }
          cleanup
  %98 = extractvalue { ptr, i32 } %97, 0
  store ptr %98, ptr %5, align 8
  %99 = extractvalue { ptr, i32 } %97, 1
  store i32 %99, ptr %6, align 4
  br label %100

100:                                              ; preds = %96, %62
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #7
  br label %101

101:                                              ; preds = %100, %40
  call void @_ZNSt5dequeIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %3) #7
  br label %102

102:                                              ; preds = %101, %29
  call void @llvm.lifetime.end.p0(i64 80, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %103

103:                                              ; preds = %102
  %104 = load ptr, ptr %5, align 8
  %105 = load i32, ptr %6, align 4
  %106 = insertvalue { ptr, i32 } poison, ptr %104, 0
  %107 = insertvalue { ptr, i32 } %106, i32 %105, 1
  resume { ptr, i32 } %107
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5dequeIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(80), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 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) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5dequeIiSaIiEE5beginEv(ptr dead_on_unwind noalias writable sret(%"struct.std::_Deque_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5dequeIiSaIiEE3endEv(ptr dead_on_unwind noalias writable sret(%"struct.std::_Deque_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt15_Deque_iteratorIiRiPiES4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt15_Deque_iteratorIiRiPiEdeEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt15_Deque_iteratorIiRiPiEppEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5dequeIiSaIiEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5dequeIiSaIiEE4backEv(ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5dequeIiSaIiEE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5dequeIiSaIiEE8pop_backEv(ptr noundef nonnull align 8 dereferenceable(80)) #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #6

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5dequeIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { 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 #1 = { "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 nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #6 = { 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 #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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"any pointer", !10, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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_istream" = type { ptr, i64, %"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_ostream" = type { ptr, %"class.std::basic_ios" }
%"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 }
%"class.std::allocator" = type { i8 }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::deque", align 8
  %3 = alloca %"class.std::allocator", align 1
  %4 = alloca %"struct.std::_Deque_iterator", align 8
  %5 = alloca %"struct.std::_Deque_iterator", align 8
  %6 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %7 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %8 = getelementptr i8, ptr %7, i64 -24
  %9 = load i64, ptr %8, align 8
  %10 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %9
  %11 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %10, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  %12 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  call void @llvm.lifetime.start.p0(i64 80, ptr nonnull %2) #7
  %13 = load i32, ptr %1, align 4, !tbaa !8
  %14 = sext i32 %13 to i64
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #7
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #7
  invoke void @_ZNSt5dequeIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(80) %2, i64 noundef %14, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %15 unwind label %19

15:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #7
  call void @_ZNSt5dequeIiSaIiEE5beginEv(ptr dead_on_unwind nonnull writable sret(%"struct.std::_Deque_iterator") align 8 %4, ptr noundef nonnull align 8 dereferenceable(80) %2) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #7
  call void @_ZNSt5dequeIiSaIiEE3endEv(ptr dead_on_unwind nonnull writable sret(%"struct.std::_Deque_iterator") align 8 %5, ptr noundef nonnull align 8 dereferenceable(80) %2) #7
  %16 = call noundef zeroext i1 @_ZStneRKSt15_Deque_iteratorIiRiPiES4_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  br i1 %16, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %23, %15
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #7
  %17 = load i32, ptr %1, align 4, !tbaa !8
  %18 = icmp sgt i32 %17, 0
  br i1 %18, label %.lr.ph25, label %._crit_edge26

19:                                               ; preds = %0
  %20 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #7
  br label %55

.lr.ph:                                           ; preds = %15, %23
  %21 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt15_Deque_iteratorIiRiPiEdeEv(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  %22 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %21)
          to label %23 unwind label %26

23:                                               ; preds = %.lr.ph
  %24 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt15_Deque_iteratorIiRiPiEppEv(ptr noundef nonnull align 8 dereferenceable(32) %4) #7
  %25 = call noundef zeroext i1 @_ZStneRKSt15_Deque_iteratorIiRiPiES4_(ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull align 8 dereferenceable(32) %5) #7
  br i1 %25, label %.lr.ph, label %._crit_edge

26:                                               ; preds = %.lr.ph
  %27 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #7
  br label %54

._crit_edge26:                                    ; preds = %43, %._crit_edge
  %.013.lcssa = phi i32 [ 0, %._crit_edge ], [ %.114, %43 ]
  %.012.lcssa = phi i32 [ 0, %._crit_edge ], [ %.1, %43 ]
  %28 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.013.lcssa)
          to label %47 unwind label %52

.lr.ph25:                                         ; preds = %._crit_edge, %43
  %.023 = phi i32 [ %44, %43 ], [ 0, %._crit_edge ]
  %.01222 = phi i32 [ %.1, %43 ], [ 0, %._crit_edge ]
  %.01321 = phi i32 [ %.114, %43 ], [ 0, %._crit_edge ]
  %29 = and i32 %.023, 1
  %.not = icmp eq i32 %29, 0
  %30 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5dequeIiSaIiEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %2) #7
  %31 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5dequeIiSaIiEE4backEv(ptr noundef nonnull align 8 dereferenceable(80) %2) #7
  %32 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %30, ptr noundef nonnull align 4 dereferenceable(4) %31)
  %33 = load i32, ptr %32, align 4, !tbaa !8
  %34 = select i1 %.not, i32 %33, i32 0
  %.114 = add nsw i32 %.01321, %34
  %35 = select i1 %.not, i32 0, i32 %33
  %.1 = add nsw i32 %.01222, %35
  %36 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5dequeIiSaIiEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) %2) #7
  %37 = load i32, ptr %36, align 4, !tbaa !8
  %38 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5dequeIiSaIiEE4backEv(ptr noundef nonnull align 8 dereferenceable(80) %2) #7
  %39 = load i32, ptr %38, align 4, !tbaa !8
  %40 = icmp sgt i32 %37, %39
  br i1 %40, label %41, label %42

41:                                               ; preds = %.lr.ph25
  call void @_ZNSt5dequeIiSaIiEE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(80) %2) #7
  br label %43

42:                                               ; preds = %.lr.ph25
  call void @_ZNSt5dequeIiSaIiEE8pop_backEv(ptr noundef nonnull align 8 dereferenceable(80) %2) #7
  br label %43

43:                                               ; preds = %41, %42
  %44 = add nuw nsw i32 %.023, 1
  %45 = load i32, ptr %1, align 4, !tbaa !8
  %46 = icmp slt i32 %44, %45
  br i1 %46, label %.lr.ph25, label %._crit_edge26, !llvm.loop !11

47:                                               ; preds = %._crit_edge26
  %48 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %28, i8 noundef signext 32)
          to label %49 unwind label %52

49:                                               ; preds = %47
  %50 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) %48, i32 noundef %.012.lcssa)
          to label %51 unwind label %52

51:                                               ; preds = %49
  call void @_ZNSt5dequeIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %2) #7
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0

52:                                               ; preds = %49, %47, %._crit_edge26
  %53 = landingpad { ptr, i32 }
          cleanup
  br label %54

54:                                               ; preds = %52, %26
  %.pn = phi { ptr, i32 } [ %27, %26 ], [ %53, %52 ]
  call void @_ZNSt5dequeIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(80) %2) #7
  br label %55

55:                                               ; preds = %54, %19
  %.pn.pn = phi { ptr, i32 } [ %.pn, %54 ], [ %20, %19 ]
  call void @llvm.lifetime.end.p0(i64 80, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn.pn
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5dequeIiSaIiEEC2EmRKS0_(ptr noundef nonnull align 8 dereferenceable(80), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 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) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5dequeIiSaIiEE5beginEv(ptr dead_on_unwind noalias writable sret(%"struct.std::_Deque_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5dequeIiSaIiEE3endEv(ptr dead_on_unwind noalias writable sret(%"struct.std::_Deque_iterator") align 8, ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt15_Deque_iteratorIiRiPiES4_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNKSt15_Deque_iteratorIiRiPiEdeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt15_Deque_iteratorIiRiPiEppEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5dequeIiSaIiEE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt5dequeIiSaIiEE4backEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5dequeIiSaIiEE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5dequeIiSaIiEE8pop_backEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #6

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5dequeIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(80)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

attributes #0 = { 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 #1 = { "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 nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #6 = { 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 #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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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