; LLVM IR from kazunetakahashi/atcoder :: 2017/1021_CF2017-qualC (B)

; 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" }

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

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_Z5powerxx(i64 noundef, i64 noundef) #0

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

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca [110 x i32], align 16
  %4 = alloca i32, align 4
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  %8 = 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)
  call void @llvm.lifetime.start.p0(i64 440, ptr %3) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %9

9:                                                ; preds = %20, %0
  %10 = load i32, ptr %4, align 4, !tbaa !5
  %11 = sext i32 %10 to i64
  %12 = load i64, ptr %2, align 8, !tbaa !9
  %13 = icmp slt i64 %11, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  br label %23

15:                                               ; preds = %9
  %16 = load i32, ptr %4, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [110 x i32], ptr %3, i64 0, i64 %17
  %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) %18)
  br label %20

20:                                               ; preds = %15
  %21 = load i32, ptr %4, align 4, !tbaa !5
  %22 = add nsw i32 %21, 1
  store i32 %22, ptr %4, align 4, !tbaa !5
  br label %9, !llvm.loop !11

23:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #5
  %24 = load i64, ptr %2, align 8, !tbaa !9
  %25 = call noundef i64 @_Z5powerxx(i64 noundef 3, i64 noundef %24)
  store i64 %25, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  store i64 1, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %26

26:                                               ; preds = %43, %23
  %27 = load i32, ptr %7, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = load i64, ptr %2, align 8, !tbaa !9
  %30 = icmp slt i64 %28, %29
  br i1 %30, label %32, label %31

31:                                               ; preds = %26
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  br label %46

32:                                               ; preds = %26
  %33 = load i32, ptr %7, align 4, !tbaa !5
  %34 = sext i32 %33 to i64
  %35 = getelementptr inbounds [110 x i32], ptr %3, i64 0, i64 %34
  %36 = load i32, ptr %35, align 4, !tbaa !5
  %37 = srem i32 %36, 2
  %38 = icmp eq i32 %37, 0
  br i1 %38, label %39, label %42

39:                                               ; preds = %32
  %40 = load i64, ptr %6, align 8, !tbaa !9
  %41 = mul nsw i64 %40, 2
  store i64 %41, ptr %6, align 8, !tbaa !9
  br label %42

42:                                               ; preds = %39, %32
  br label %43

43:                                               ; preds = %42
  %44 = load i32, ptr %7, align 4, !tbaa !5
  %45 = add nsw i32 %44, 1
  store i32 %45, ptr %7, align 4, !tbaa !5
  br label %26, !llvm.loop !13

46:                                               ; preds = %31
  %47 = load i64, ptr %6, align 8, !tbaa !9
  %48 = load i64, ptr %5, align 8, !tbaa !9
  %49 = sub nsw i64 %48, %47
  store i64 %49, ptr %5, align 8, !tbaa !9
  %50 = load i64, ptr %5, align 8, !tbaa !9
  %51 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %50)
  %52 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %51, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 440, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  %53 = load i32, ptr %1, align 4
  ret i32 %53
}

; 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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #0 align 2

; 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)) #4

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { "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 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !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::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" }

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

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_Z5powerxx(i64 noundef, i64 noundef) local_unnamed_addr #0

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

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 {
  %1 = alloca i64, align 8
  %2 = alloca [110 x i32], align 16
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #5
  %3 = 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)
  call void @llvm.lifetime.start.p0(i64 440, ptr nonnull %2) #5
  %4 = load i64, ptr %1, align 8, !tbaa !5
  %5 = icmp sgt i64 %4, 0
  br i1 %5, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  %.lcssa = phi i64 [ %4, %0 ], [ %12, %.lr.ph ]
  %6 = call noundef i64 @_Z5powerxx(i64 noundef 3, i64 noundef %.lcssa)
  %7 = load i64, ptr %1, align 8, !tbaa !5
  %8 = icmp sgt i64 %7, 0
  br i1 %8, label %.lr.ph20.preheader, label %._crit_edge21

.lr.ph20.preheader:                               ; preds = %._crit_edge
  %xtraiter = and i64 %7, 3
  %9 = icmp ult i64 %7, 4
  br i1 %9, label %._crit_edge21.loopexit.unr-lcssa, label %.lr.ph20.preheader.new

.lr.ph20.preheader.new:                           ; preds = %.lr.ph20.preheader
  %unroll_iter = and i64 %7, 9223372036854775804
  br label %.lr.ph20

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %10 = getelementptr inbounds [110 x i32], ptr %2, i64 0, i64 %indvars.iv
  %11 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %10)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %12 = load i64, ptr %1, align 8, !tbaa !5
  %13 = icmp sgt i64 %12, %indvars.iv.next
  br i1 %13, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge21.loopexit.unr-lcssa:                 ; preds = %.lr.ph20, %.lr.ph20.preheader
  %spec.select.lcssa.ph = phi i64 [ poison, %.lr.ph20.preheader ], [ %spec.select.3, %.lr.ph20 ]
  %indvars.iv25.unr = phi i64 [ 0, %.lr.ph20.preheader ], [ %indvars.iv.next26.3, %.lr.ph20 ]
  %.01117.unr = phi i64 [ 1, %.lr.ph20.preheader ], [ %spec.select.3, %.lr.ph20 ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge21, label %.lr.ph20.epil

.lr.ph20.epil:                                    ; preds = %._crit_edge21.loopexit.unr-lcssa, %.lr.ph20.epil
  %indvars.iv25.epil = phi i64 [ %indvars.iv.next26.epil, %.lr.ph20.epil ], [ %indvars.iv25.unr, %._crit_edge21.loopexit.unr-lcssa ]
  %.01117.epil = phi i64 [ %spec.select.epil, %.lr.ph20.epil ], [ %.01117.unr, %._crit_edge21.loopexit.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.lr.ph20.epil ], [ 0, %._crit_edge21.loopexit.unr-lcssa ]
  %14 = getelementptr inbounds [110 x i32], ptr %2, i64 0, i64 %indvars.iv25.epil
  %15 = load i32, ptr %14, align 4, !tbaa !11
  %16 = and i32 %15, 1
  %17 = xor i32 %16, 1
  %18 = zext nneg i32 %17 to i64
  %spec.select.epil = shl i64 %.01117.epil, %18
  %indvars.iv.next26.epil = add nuw nsw i64 %indvars.iv25.epil, 1
  %epil.iter.next = add i64 %epil.iter, 1
  %epil.iter.cmp.not = icmp eq i64 %epil.iter.next, %xtraiter
  br i1 %epil.iter.cmp.not, label %._crit_edge21, label %.lr.ph20.epil, !llvm.loop !13

._crit_edge21:                                    ; preds = %._crit_edge21.loopexit.unr-lcssa, %.lr.ph20.epil, %._crit_edge
  %.011.lcssa = phi i64 [ 1, %._crit_edge ], [ %spec.select.lcssa.ph, %._crit_edge21.loopexit.unr-lcssa ], [ %spec.select.epil, %.lr.ph20.epil ]
  %19 = sub nsw i64 %6, %.011.lcssa
  %20 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %19)
  %21 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %20, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 440, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  ret i32 0

.lr.ph20:                                         ; preds = %.lr.ph20, %.lr.ph20.preheader.new
  %indvars.iv25 = phi i64 [ 0, %.lr.ph20.preheader.new ], [ %indvars.iv.next26.3, %.lr.ph20 ]
  %.01117 = phi i64 [ 1, %.lr.ph20.preheader.new ], [ %spec.select.3, %.lr.ph20 ]
  %niter = phi i64 [ 0, %.lr.ph20.preheader.new ], [ %niter.next.3, %.lr.ph20 ]
  %22 = getelementptr inbounds [110 x i32], ptr %2, i64 0, i64 %indvars.iv25
  %23 = load i32, ptr %22, align 16, !tbaa !11
  %24 = and i32 %23, 1
  %25 = xor i32 %24, 1
  %26 = zext nneg i32 %25 to i64
  %spec.select = shl i64 %.01117, %26
  %indvars.iv.next26 = or disjoint i64 %indvars.iv25, 1
  %27 = getelementptr inbounds [110 x i32], ptr %2, i64 0, i64 %indvars.iv.next26
  %28 = load i32, ptr %27, align 4, !tbaa !11
  %29 = and i32 %28, 1
  %30 = xor i32 %29, 1
  %31 = zext nneg i32 %30 to i64
  %spec.select.1 = shl i64 %spec.select, %31
  %indvars.iv.next26.1 = or disjoint i64 %indvars.iv25, 2
  %32 = getelementptr inbounds [110 x i32], ptr %2, i64 0, i64 %indvars.iv.next26.1
  %33 = load i32, ptr %32, align 8, !tbaa !11
  %34 = and i32 %33, 1
  %35 = xor i32 %34, 1
  %36 = zext nneg i32 %35 to i64
  %spec.select.2 = shl i64 %spec.select.1, %36
  %indvars.iv.next26.2 = or disjoint i64 %indvars.iv25, 3
  %37 = getelementptr inbounds [110 x i32], ptr %2, i64 0, i64 %indvars.iv.next26.2
  %38 = load i32, ptr %37, align 4, !tbaa !11
  %39 = and i32 %38, 1
  %40 = xor i32 %39, 1
  %41 = zext nneg i32 %40 to i64
  %spec.select.3 = shl i64 %spec.select.2, %41
  %indvars.iv.next26.3 = add nuw nsw i64 %indvars.iv25, 4
  %niter.next.3 = add i64 %niter, 4
  %niter.ncmp.3 = icmp eq i64 %niter.next.3, %unroll_iter
  br i1 %niter.ncmp.3, label %._crit_edge21.loopexit.unr-lcssa, label %.lr.ph20, !llvm.loop !15
}

; 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

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 #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEx(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) local_unnamed_addr #0 align 2

; 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)) #4

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { "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 = { 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 #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"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.unroll.disable"}
!15 = distinct !{!15, !10}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass