; LLVM IR from kazunetakahashi/atcoder :: 2020/0205_ABC145 (D)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%class.Combination = type { %"class.std::vector", %"class.std::vector", %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<Mint<>, std::allocator<Mint<>>>::_Vector_impl" }
%"struct.std::_Vector_base<Mint<>, std::allocator<Mint<>>>::_Vector_impl" = type { %"struct.std::_Vector_base<Mint<>, std::allocator<Mint<>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Mint<>, std::allocator<Mint<>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%class.Mint = type { i64 }

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z2Nov() #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca %class.Combination, align 8
  %6 = alloca %class.Mint, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %9 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %2)
  %10 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %9, ptr noundef nonnull align 8 dereferenceable(8) %3)
  %11 = load i64, ptr %2, align 8, !tbaa !5
  %12 = load i64, ptr %3, align 8, !tbaa !5
  %13 = add nsw i64 %11, %12
  %14 = srem i64 %13, 3
  %15 = icmp ne i64 %14, 0
  br i1 %15, label %16, label %17

16:                                               ; preds = %0
  call void @_Z2Nov()
  br label %17

17:                                               ; preds = %16, %0
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  %18 = load i64, ptr %2, align 8, !tbaa !5
  %19 = load i64, ptr %3, align 8, !tbaa !5
  %20 = add nsw i64 %18, %19
  %21 = sdiv i64 %20, 3
  store i64 %21, ptr %4, align 8, !tbaa !5
  %22 = load i64, ptr %4, align 8, !tbaa !5
  %23 = load i64, ptr %2, align 8, !tbaa !5
  %24 = sub nsw i64 %23, %22
  store i64 %24, ptr %2, align 8, !tbaa !5
  %25 = load i64, ptr %4, align 8, !tbaa !5
  %26 = load i64, ptr %3, align 8, !tbaa !5
  %27 = sub nsw i64 %26, %25
  store i64 %27, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 72, ptr %5) #5
  call void @_ZN11CombinationILx1000000007ELx3000010EEC2Ev(ptr noundef nonnull align 8 dereferenceable(72) %5)
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %28 = load i64, ptr %2, align 8, !tbaa !5
  %29 = load i64, ptr %3, align 8, !tbaa !5
  %30 = add nsw i64 %28, %29
  %31 = trunc i64 %30 to i32
  %32 = load i64, ptr %2, align 8, !tbaa !5
  %33 = trunc i64 %32 to i32
  %34 = invoke i64 @_ZN11CombinationILx1000000007ELx3000010EEclEii(ptr noundef nonnull align 8 dereferenceable(72) %5, i32 noundef %31, i32 noundef %33)
          to label %35 unwind label %42

35:                                               ; preds = %17
  %36 = getelementptr inbounds %class.Mint, ptr %6, i32 0, i32 0
  store i64 %34, ptr %36, align 8
  %37 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZlsILx1000000007EERSoS0_RK4MintIXT_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(8) %6)
          to label %38 unwind label %42

38:                                               ; preds = %35
  %39 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %37, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %40 unwind label %42

40:                                               ; preds = %38
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  call void @_ZN11CombinationILx1000000007ELx3000010EED2Ev(ptr noundef nonnull align 8 dereferenceable(72) %5) #5
  call void @llvm.lifetime.end.p0(i64 72, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  %41 = load i32, ptr %1, align 4
  ret i32 %41

42:                                               ; preds = %38, %35, %17
  %43 = landingpad { ptr, i32 }
          cleanup
  %44 = extractvalue { ptr, i32 } %43, 0
  store ptr %44, ptr %7, align 8
  %45 = extractvalue { ptr, i32 } %43, 1
  store i32 %45, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  call void @_ZN11CombinationILx1000000007ELx3000010EED2Ev(ptr noundef nonnull align 8 dereferenceable(72) %5) #5
  call void @llvm.lifetime.end.p0(i64 72, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  br label %46

46:                                               ; preds = %42
  %47 = load ptr, ptr %7, align 8
  %48 = load i32, ptr %8, align 4
  %49 = insertvalue { ptr, i32 } poison, ptr %47, 0
  %50 = insertvalue { ptr, i32 } %49, i32 %48, 1
  resume { ptr, i32 } %50
}

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN11CombinationILx1000000007ELx3000010EEC2Ev(ptr noundef nonnull align 8 dereferenceable(72)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZlsILx1000000007EERSoS0_RK4MintIXT_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #0

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZN11CombinationILx1000000007ELx3000010EEclEii(ptr noundef nonnull align 8 dereferenceable(72), i32 noundef, i32 noundef) #0 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: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN11CombinationILx1000000007ELx3000010EED2Ev(ptr noundef nonnull align 8 dereferenceable(72)) unnamed_addr #4 align 2

attributes #0 = { 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 #1 = { 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 #2 = { 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 #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 #5 = { 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"}


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

%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%class.Combination = type { %"class.std::vector", %"class.std::vector", %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<Mint<>, std::allocator<Mint<>>>::_Vector_impl" }
%"struct.std::_Vector_base<Mint<>, std::allocator<Mint<>>>::_Vector_impl" = type { %"struct.std::_Vector_base<Mint<>, std::allocator<Mint<>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Mint<>, std::allocator<Mint<>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%class.Mint = type { i64 }

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z2Nov() local_unnamed_addr #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca %class.Combination, align 8
  %4 = alloca %class.Mint, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #5
  %5 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %1)
  %6 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef nonnull align 8 dereferenceable(8) %2)
  %7 = load i64, ptr %1, align 8, !tbaa !5
  %8 = load i64, ptr %2, align 8, !tbaa !5
  %9 = add nsw i64 %8, %7
  %10 = srem i64 %9, 3
  %.not = icmp eq i64 %10, 0
  br i1 %.not, label %12, label %11

11:                                               ; preds = %0
  call void @_Z2Nov()
  %.pre = load i64, ptr %1, align 8, !tbaa !5
  %.pre4 = load i64, ptr %2, align 8, !tbaa !5
  %.pre5 = add nsw i64 %.pre4, %.pre
  br label %12

12:                                               ; preds = %11, %0
  %.pre-phi = phi i64 [ %.pre5, %11 ], [ %9, %0 ]
  %13 = phi i64 [ %.pre4, %11 ], [ %8, %0 ]
  %14 = phi i64 [ %.pre, %11 ], [ %7, %0 ]
  %15 = sdiv i64 %.pre-phi, 3
  %16 = sub nsw i64 %14, %15
  store i64 %16, ptr %1, align 8, !tbaa !5
  %17 = sub nsw i64 %13, %15
  store i64 %17, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 72, ptr nonnull %3) #5
  call void @_ZN11CombinationILx1000000007ELx3000010EEC2Ev(ptr noundef nonnull align 8 dereferenceable(72) %3)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #5
  %18 = load i64, ptr %1, align 8, !tbaa !5
  %19 = load i64, ptr %2, align 8, !tbaa !5
  %20 = add nsw i64 %19, %18
  %21 = trunc i64 %20 to i32
  %22 = trunc i64 %18 to i32
  %23 = invoke i64 @_ZN11CombinationILx1000000007ELx3000010EEclEii(ptr noundef nonnull align 8 dereferenceable(72) %3, i32 noundef %21, i32 noundef %22)
          to label %24 unwind label %29

24:                                               ; preds = %12
  store i64 %23, ptr %4, align 8
  %25 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZlsILx1000000007EERSoS0_RK4MintIXT_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %26 unwind label %29

26:                                               ; preds = %24
  %27 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %25, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %28 unwind label %29

28:                                               ; preds = %26
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  call void @_ZN11CombinationILx1000000007ELx3000010EED2Ev(ptr noundef nonnull align 8 dereferenceable(72) %3) #5
  call void @llvm.lifetime.end.p0(i64 72, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  ret i32 0

29:                                               ; preds = %26, %24, %12
  %30 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #5
  call void @_ZN11CombinationILx1000000007ELx3000010EED2Ev(ptr noundef nonnull align 8 dereferenceable(72) %3) #5
  call void @llvm.lifetime.end.p0(i64 72, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  resume { ptr, i32 } %30
}

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN11CombinationILx1000000007ELx3000010EEC2Ev(ptr noundef nonnull align 8 dereferenceable(72)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZlsILx1000000007EERSoS0_RK4MintIXT_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local i64 @_ZN11CombinationILx1000000007ELx3000010EEclEii(ptr noundef nonnull align 8 dereferenceable(72), i32 noundef, i32 noundef) local_unnamed_addr #0 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: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN11CombinationILx1000000007ELx3000010EED2Ev(ptr noundef nonnull align 8 dereferenceable(72)) unnamed_addr #4 align 2

attributes #0 = { 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 #1 = { 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 #2 = { 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 #3 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 #5 = { 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"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SROAPass,SimplifyCFGPass