; LLVM IR from bqi343/cp-notebook :: Contests/Other Solutions/VT HSPC/2017 (Swish)

; 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::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<std::pair<int, std::vector<int>>, std::allocator<std::pair<int, std::vector<int>>>>::_Deque_impl" }
%"struct.std::_Deque_base<std::pair<int, std::vector<int>>, std::allocator<std::pair<int, std::vector<int>>>>::_Deque_impl" = type { %"struct.std::_Deque_base<std::pair<int, std::vector<int>>, std::allocator<std::pair<int, std::vector<int>>>>::_Deque_impl_data" }
%"struct.std::_Deque_base<std::pair<int, std::vector<int>>, std::allocator<std::pair<int, std::vector<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::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_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"struct.std::pair" = type { i32, %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::initializer_list" = type { ptr, i64 }
%"class.std::allocator.3" = type { i8 }

@n = external dso_local global i32, align 4
@r = external dso_local global [20 x i32], align 16
@d = external dso_local global [20 x i32], align 16
@en = external dso_local global i32, align 4
@x = external dso_local global %"class.std::deque", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8

; 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 uwtable
declare dso_local void @_Z7processiSt6vectorIiSaIiEE(i32 noundef, ptr noundef) #1

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE9push_backEOS4_(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiSt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #5 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"struct.std::pair", align 8
  %4 = alloca i32, align 4
  %5 = alloca %"class.std::vector", align 8
  %6 = alloca %"class.std::initializer_list", align 8
  %7 = alloca [4 x i32], align 4
  %8 = alloca %"class.std::allocator.3", align 1
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  %11 = alloca %"struct.std::pair", align 8
  %12 = alloca %"class.std::vector", align 8
  store i32 0, ptr %1, align 4
  %13 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %14 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %15 = getelementptr i8, ptr %14, i64 -24
  %16 = load i64, ptr %15, align 8
  %17 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %16
  %18 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %17, ptr noundef null)
  %19 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %20 = load i32, ptr @n, align 4, !tbaa !8
  %21 = shl i32 1, %20
  %22 = sub nsw i32 %21, 1
  store i32 %22, ptr @en, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  store i32 0, ptr %2, align 4, !tbaa !8
  br label %23

23:                                               ; preds = %37, %0
  %24 = load i32, ptr %2, align 4, !tbaa !8
  %25 = load i32, ptr @n, align 4, !tbaa !8
  %26 = icmp slt i32 %24, %25
  br i1 %26, label %28, label %27

27:                                               ; preds = %23
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  br label %40

28:                                               ; preds = %23
  %29 = load i32, ptr %2, align 4, !tbaa !8
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds [20 x i32], ptr @r, i64 0, i64 %30
  %32 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %31)
  %33 = load i32, ptr %2, align 4, !tbaa !8
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds [20 x i32], ptr @d, i64 0, i64 %34
  %36 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %32, ptr noundef nonnull align 4 dereferenceable(4) %35)
  br label %37

37:                                               ; preds = %28
  %38 = load i32, ptr %2, align 4, !tbaa !8
  %39 = add nsw i32 %38, 1
  store i32 %39, ptr %2, align 4, !tbaa !8
  br label %23, !llvm.loop !11

40:                                               ; preds = %27
  call void @llvm.lifetime.start.p0(i64 32, ptr %3) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #6
  store i32 0, ptr %4, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #6
  call void @llvm.lifetime.start.p0(i64 16, ptr %7) #6
  store i32 0, ptr %7, align 4, !tbaa !8
  %41 = getelementptr inbounds i32, ptr %7, i64 1
  store i32 0, ptr %41, align 4, !tbaa !8
  %42 = getelementptr inbounds i32, ptr %7, i64 2
  store i32 -1, ptr %42, align 4, !tbaa !8
  %43 = getelementptr inbounds i32, ptr %7, i64 3
  store i32 -1, ptr %43, align 4, !tbaa !8
  %44 = getelementptr inbounds %"class.std::initializer_list", ptr %6, i32 0, i32 0
  store ptr %7, ptr %44, align 8, !tbaa !13
  %45 = getelementptr inbounds %"class.std::initializer_list", ptr %6, i32 0, i32 1
  store i64 4, ptr %45, align 8, !tbaa !17
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  %46 = getelementptr inbounds { ptr, i64 }, ptr %6, i32 0, i32 0
  %47 = load ptr, ptr %46, align 8
  %48 = getelementptr inbounds { ptr, i64 }, ptr %6, i32 0, i32 1
  %49 = load i64, ptr %48, align 8
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %5, ptr %47, i64 %49, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %50 unwind label %63

50:                                               ; preds = %40
  invoke void @_ZNSt4pairIiSt6vectorIiSaIiEEEC2IiS2_TnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS6_S7_EEEbE4typeELb1EEERKiRKS2_(ptr noundef nonnull align 8 dereferenceable(32) %3, ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 8 dereferenceable(24) %5)
          to label %51 unwind label %67

51:                                               ; preds = %50
  invoke void @_ZNSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE9push_backEOS4_(ptr noundef nonnull align 8 dereferenceable(80) @x, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %52 unwind label %71

52:                                               ; preds = %51
  call void @_ZNSt4pairIiSt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #6
  br label %53

53:                                               ; preds = %62, %52
  %54 = call noundef i64 @_ZNKSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(80) @x) #6
  %55 = icmp ne i64 %54, 0
  br i1 %55, label %56, label %86

56:                                               ; preds = %53
  call void @llvm.lifetime.start.p0(i64 32, ptr %11) #6
  %57 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) @x) #6
  call void @_ZNSt4pairIiSt6vectorIiSaIiEEEC2ERKS3_(ptr noundef nonnull align 8 dereferenceable(32) %11, ptr noundef nonnull align 8 dereferenceable(32) %57)
  call void @_ZNSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(80) @x) #6
  %58 = getelementptr inbounds %"struct.std::pair", ptr %11, i32 0, i32 0
  %59 = load i32, ptr %58, align 8, !tbaa !18
  %60 = getelementptr inbounds %"struct.std::pair", ptr %11, i32 0, i32 1
  invoke void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %12, ptr noundef nonnull align 8 dereferenceable(24) %60)
          to label %61 unwind label %77

61:                                               ; preds = %56
  invoke void @_Z7processiSt6vectorIiSaIiEE(i32 noundef %59, ptr noundef %12)
          to label %62 unwind label %81

62:                                               ; preds = %61
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %12) #6
  call void @_ZNSt4pairIiSt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %11) #6
  br label %53, !llvm.loop !24

63:                                               ; preds = %40
  %64 = landingpad { ptr, i32 }
          cleanup
  %65 = extractvalue { ptr, i32 } %64, 0
  store ptr %65, ptr %9, align 8
  %66 = extractvalue { ptr, i32 } %64, 1
  store i32 %66, ptr %10, align 4
  br label %76

67:                                               ; preds = %50
  %68 = landingpad { ptr, i32 }
          cleanup
  %69 = extractvalue { ptr, i32 } %68, 0
  store ptr %69, ptr %9, align 8
  %70 = extractvalue { ptr, i32 } %68, 1
  store i32 %70, ptr %10, align 4
  br label %75

71:                                               ; preds = %51
  %72 = landingpad { ptr, i32 }
          cleanup
  %73 = extractvalue { ptr, i32 } %72, 0
  store ptr %73, ptr %9, align 8
  %74 = extractvalue { ptr, i32 } %72, 1
  store i32 %74, ptr %10, align 4
  call void @_ZNSt4pairIiSt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  br label %75

75:                                               ; preds = %71, %67
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #6
  br label %76

76:                                               ; preds = %75, %63
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #6
  br label %89

77:                                               ; preds = %56
  %78 = landingpad { ptr, i32 }
          cleanup
  %79 = extractvalue { ptr, i32 } %78, 0
  store ptr %79, ptr %9, align 8
  %80 = extractvalue { ptr, i32 } %78, 1
  store i32 %80, ptr %10, align 4
  br label %85

81:                                               ; preds = %61
  %82 = landingpad { ptr, i32 }
          cleanup
  %83 = extractvalue { ptr, i32 } %82, 0
  store ptr %83, ptr %9, align 8
  %84 = extractvalue { ptr, i32 } %82, 1
  store i32 %84, ptr %10, align 4
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %12) #6
  br label %85

85:                                               ; preds = %81, %77
  call void @_ZNSt4pairIiSt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %11) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %11) #6
  br label %89

86:                                               ; preds = %53
  %87 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef -1)
  %88 = load i32, ptr %1, align 4
  ret i32 %88

89:                                               ; preds = %85, %76
  %90 = load ptr, ptr %9, align 8
  %91 = load i32, ptr %10, align 4
  %92 = insertvalue { ptr, i32 } poison, ptr %90, 0
  %93 = insertvalue { ptr, i32 } %92, i32 %91, 1
  resume { ptr, i32 } %93
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #2

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #4 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt4pairIiSt6vectorIiSaIiEEEC2IiS2_TnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS6_S7_EEEbE4typeELb1EEERKiRKS2_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(80)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt4pairIiSt6vectorIiSaIiEEEC2ERKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(80)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { "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 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 #5 = { 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 #6 = { 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"}
!13 = !{!14, !15, i64 0}
!14 = !{!"_ZTSSt16initializer_listIiE", !15, i64 0, !16, i64 8}
!15 = !{!"any pointer", !10, i64 0}
!16 = !{!"long", !10, i64 0}
!17 = !{!14, !16, i64 8}
!18 = !{!19, !9, i64 0}
!19 = !{!"_ZTSSt4pairIiSt6vectorIiSaIiEEE", !9, i64 0, !20, i64 8}
!20 = !{!"_ZTSSt6vectorIiSaIiEE", !21, i64 0}
!21 = !{!"_ZTSSt12_Vector_baseIiSaIiEE", !22, i64 0}
!22 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE12_Vector_implE", !23, i64 0}
!23 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE17_Vector_impl_dataE", !15, i64 0, !15, i64 8, !15, i64 16}
!24 = distinct !{!24, !12}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::deque" = type { %"class.std::_Deque_base" }
%"class.std::_Deque_base" = type { %"struct.std::_Deque_base<std::pair<int, std::vector<int>>, std::allocator<std::pair<int, std::vector<int>>>>::_Deque_impl" }
%"struct.std::_Deque_base<std::pair<int, std::vector<int>>, std::allocator<std::pair<int, std::vector<int>>>>::_Deque_impl" = type { %"struct.std::_Deque_base<std::pair<int, std::vector<int>>, std::allocator<std::pair<int, std::vector<int>>>>::_Deque_impl_data" }
%"struct.std::_Deque_base<std::pair<int, std::vector<int>>, std::allocator<std::pair<int, std::vector<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::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_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"struct.std::pair" = type { i32, %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.3" = type { i8 }

@n = external dso_local global i32, align 4
@r = external dso_local global [20 x i32], align 16
@d = external dso_local global [20 x i32], align 16
@en = external dso_local local_unnamed_addr global i32, align 4
@x = external dso_local global %"class.std::deque", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8

; 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 uwtable
declare dso_local void @_Z7processiSt6vectorIiSaIiEE(i32 noundef, ptr noundef) local_unnamed_addr #1

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE9push_backEOS4_(ptr noundef nonnull align 8 dereferenceable(80), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIiSt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4 align 2

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #5 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"struct.std::pair", align 8
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca [4 x i32], align 16
  %5 = alloca %"class.std::allocator.3", align 1
  %6 = alloca %"struct.std::pair", align 8
  %7 = alloca %"class.std::vector", align 8
  %8 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %9 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %10 = getelementptr i8, ptr %9, i64 -24
  %11 = load i64, ptr %10, align 8
  %12 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %11
  %13 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %12, ptr noundef null)
  %14 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) @n)
  %15 = load i32, ptr @n, align 4, !tbaa !8
  %notmask = shl nsw i32 -1, %15
  %16 = xor i32 %notmask, -1
  store i32 %16, ptr @en, align 4, !tbaa !8
  %17 = icmp sgt i32 %15, 0
  br i1 %17, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #6
  store i32 0, ptr %2, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #6
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %4) #6
  store <4 x i32> <i32 0, i32 0, i32 -1, i32 -1>, ptr %4, align 16, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #6
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  invoke void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr nonnull %4, i64 4, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %25 unwind label %36

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %18 = getelementptr inbounds [20 x i32], ptr @r, i64 0, i64 %indvars.iv
  %19 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %18)
  %20 = getelementptr inbounds [20 x i32], ptr @d, i64 0, i64 %indvars.iv
  %21 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %19, ptr noundef nonnull align 4 dereferenceable(4) %20)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %22 = load i32, ptr @n, align 4, !tbaa !8
  %23 = sext i32 %22 to i64
  %24 = icmp slt i64 %indvars.iv.next, %23
  br i1 %24, label %.lr.ph, label %._crit_edge, !llvm.loop !11

25:                                               ; preds = %._crit_edge
  invoke void @_ZNSt4pairIiSt6vectorIiSaIiEEEC2IiS2_TnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS6_S7_EEEbE4typeELb1EEERKiRKS2_(ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 8 dereferenceable(24) %3)
          to label %26 unwind label %38

26:                                               ; preds = %25
  invoke void @_ZNSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE9push_backEOS4_(ptr noundef nonnull align 8 dereferenceable(80) @x, ptr noundef nonnull align 8 dereferenceable(32) %1)
          to label %27 unwind label %40

27:                                               ; preds = %26
  call void @_ZNSt4pairIiSt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  %28 = call noundef i64 @_ZNKSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(80) @x) #6
  %.not17 = icmp eq i64 %28, 0
  br i1 %.not17, label %._crit_edge20, label %.lr.ph19

.lr.ph19:                                         ; preds = %27
  %29 = getelementptr inbounds i8, ptr %6, i64 8
  br label %30

30:                                               ; preds = %.lr.ph19, %34
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %6) #6
  %31 = call noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE5frontEv(ptr noundef nonnull align 8 dereferenceable(80) @x) #6
  call void @_ZNSt4pairIiSt6vectorIiSaIiEEEC2ERKS3_(ptr noundef nonnull align 8 dereferenceable(32) %6, ptr noundef nonnull align 8 dereferenceable(32) %31)
  call void @_ZNSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(80) @x) #6
  %32 = load i32, ptr %6, align 8, !tbaa !13
  invoke void @_ZNSt6vectorIiSaIiEEC2ERKS1_(ptr noundef nonnull align 8 dereferenceable(24) %7, ptr noundef nonnull align 8 dereferenceable(24) %29)
          to label %33 unwind label %44

33:                                               ; preds = %30
  invoke void @_Z7processiSt6vectorIiSaIiEE(i32 noundef %32, ptr noundef nonnull %7)
          to label %34 unwind label %46

34:                                               ; preds = %33
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  call void @_ZNSt4pairIiSt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #6
  %35 = call noundef i64 @_ZNKSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(80) @x) #6
  %.not = icmp eq i64 %35, 0
  br i1 %.not, label %._crit_edge20, label %30, !llvm.loop !20

36:                                               ; preds = %._crit_edge
  %37 = landingpad { ptr, i32 }
          cleanup
  br label %43

38:                                               ; preds = %25
  %39 = landingpad { ptr, i32 }
          cleanup
  br label %42

40:                                               ; preds = %26
  %41 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt4pairIiSt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  br label %42

42:                                               ; preds = %40, %38
  %.pn = phi { ptr, i32 } [ %41, %40 ], [ %39, %38 ]
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  br label %43

43:                                               ; preds = %42, %36
  %.pn.pn = phi { ptr, i32 } [ %.pn, %42 ], [ %37, %36 ]
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  br label %50

44:                                               ; preds = %30
  %45 = landingpad { ptr, i32 }
          cleanup
  br label %48

46:                                               ; preds = %33
  %47 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #6
  br label %48

48:                                               ; preds = %46, %44
  %.pn13 = phi { ptr, i32 } [ %47, %46 ], [ %45, %44 ]
  call void @_ZNSt4pairIiSt6vectorIiSaIiEEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %6) #6
  br label %50

._crit_edge20:                                    ; preds = %34, %27
  %49 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef -1)
  ret i32 0

50:                                               ; preds = %48, %43
  %.pn13.pn = phi { ptr, i32 } [ %.pn13, %48 ], [ %.pn.pn, %43 ]
  resume { ptr, i32 } %.pn13.pn
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #4 align 2

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 #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2ESt16initializer_listIiERKS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt4pairIiSt6vectorIiSaIiEEEC2IiS2_TnNSt9enable_ifIXaaclsr5_PCCPE18_ConstructiblePairIT_T0_EEclsr5_PCCPE26_ImplicitlyConvertiblePairIS6_S7_EEEbE4typeELb1EEERKiRKS2_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE5frontEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt4pairIiSt6vectorIiSaIiEEEC2ERKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5dequeISt4pairIiSt6vectorIiSaIiEEESaIS4_EE9pop_frontEv(ptr noundef nonnull align 8 dereferenceable(80)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { "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 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 #5 = { 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 #6 = { 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"}
!13 = !{!14, !9, i64 0}
!14 = !{!"_ZTSSt4pairIiSt6vectorIiSaIiEEE", !9, i64 0, !15, i64 8}
!15 = !{!"_ZTSSt6vectorIiSaIiEE", !16, i64 0}
!16 = !{!"_ZTSSt12_Vector_baseIiSaIiEE", !17, i64 0}
!17 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE12_Vector_implE", !18, i64 0}
!18 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE17_Vector_impl_dataE", !19, i64 0, !19, i64 8, !19, i64 16}
!19 = !{!"any pointer", !10, i64 0}
!20 = distinct !{!20, !12}


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