; LLVM IR from kazunetakahashi/atcoder :: 2017/1124_code-fes-2016-final (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_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" }

@N = external dso_local global i32, align 4
@M = external dso_local global i32, align 4
@X = external dso_local global [100010 x i32], align 16
@cnt = external dso_local global [100010 x i32], align 16
@mod = external dso_local global [100010 x [2 x i32]], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", 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 nounwind uwtable
declare dso_local noundef i32 @_Z3resi(i32 noundef) #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %9 = 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)
  %10 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %9, ptr noundef nonnull align 4 dereferenceable(4) @M)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #6
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %11

11:                                               ; preds = %21, %0
  %12 = load i32, ptr %2, align 4, !tbaa !5
  %13 = load i32, ptr @N, align 4, !tbaa !5
  %14 = icmp slt i32 %12, %13
  br i1 %14, label %16, label %15

15:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #6
  br label %24

16:                                               ; preds = %11
  %17 = load i32, ptr %2, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [100010 x i32], ptr @X, i64 0, i64 %18
  %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) %19)
  br label %21

21:                                               ; preds = %16
  %22 = load i32, ptr %2, align 4, !tbaa !5
  %23 = add nsw i32 %22, 1
  store i32 %23, ptr %2, align 4, !tbaa !5
  br label %11, !llvm.loop !9

24:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #6
  store i32 0, ptr %3, align 4, !tbaa !5
  call void @_ZSt4fillIPiiEvT_S1_RKT0_(ptr noundef @cnt, ptr noundef getelementptr inbounds (i32, ptr @cnt, i64 100010), ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #6
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %25

25:                                               ; preds = %39, %24
  %26 = load i32, ptr %4, align 4, !tbaa !5
  %27 = load i32, ptr @N, align 4, !tbaa !5
  %28 = icmp slt i32 %26, %27
  br i1 %28, label %30, label %29

29:                                               ; preds = %25
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #6
  br label %42

30:                                               ; preds = %25
  %31 = load i32, ptr %4, align 4, !tbaa !5
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [100010 x i32], ptr @X, i64 0, i64 %32
  %34 = load i32, ptr %33, align 4, !tbaa !5
  %35 = sext i32 %34 to i64
  %36 = getelementptr inbounds [100010 x i32], ptr @cnt, i64 0, i64 %35
  %37 = load i32, ptr %36, align 4, !tbaa !5
  %38 = add nsw i32 %37, 1
  store i32 %38, ptr %36, align 4, !tbaa !5
  br label %39

39:                                               ; preds = %30
  %40 = load i32, ptr %4, align 4, !tbaa !5
  %41 = add nsw i32 %40, 1
  store i32 %41, ptr %4, align 4, !tbaa !5
  br label %25, !llvm.loop !11

42:                                               ; preds = %29
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #6
  store i32 0, ptr %5, align 4, !tbaa !5
  call void @_ZSt4fillIPiiEvT_S1_RKT0_(ptr noundef @mod, ptr noundef getelementptr inbounds (i32, ptr @mod, i64 200020), ptr noundef nonnull align 4 dereferenceable(4) %5)
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #6
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %43

43:                                               ; preds = %74, %42
  %44 = load i32, ptr %6, align 4, !tbaa !5
  %45 = icmp slt i32 %44, 100010
  br i1 %45, label %47, label %46

46:                                               ; preds = %43
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #6
  br label %77

47:                                               ; preds = %43
  %48 = load i32, ptr %6, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds [100010 x i32], ptr @cnt, i64 0, i64 %49
  %51 = load i32, ptr %50, align 4, !tbaa !5
  %52 = srem i32 %51, 2
  %53 = load i32, ptr %6, align 4, !tbaa !5
  %54 = load i32, ptr @M, align 4, !tbaa !5
  %55 = srem i32 %53, %54
  %56 = sext i32 %55 to i64
  %57 = getelementptr inbounds [100010 x [2 x i32]], ptr @mod, i64 0, i64 %56
  %58 = getelementptr inbounds [2 x i32], ptr %57, i64 0, i64 0
  %59 = load i32, ptr %58, align 8, !tbaa !5
  %60 = add nsw i32 %59, %52
  store i32 %60, ptr %58, align 8, !tbaa !5
  %61 = load i32, ptr %6, align 4, !tbaa !5
  %62 = sext i32 %61 to i64
  %63 = getelementptr inbounds [100010 x i32], ptr @cnt, i64 0, i64 %62
  %64 = load i32, ptr %63, align 4, !tbaa !5
  %65 = sdiv i32 %64, 2
  %66 = load i32, ptr %6, align 4, !tbaa !5
  %67 = load i32, ptr @M, align 4, !tbaa !5
  %68 = srem i32 %66, %67
  %69 = sext i32 %68 to i64
  %70 = getelementptr inbounds [100010 x [2 x i32]], ptr @mod, i64 0, i64 %69
  %71 = getelementptr inbounds [2 x i32], ptr %70, i64 0, i64 1
  %72 = load i32, ptr %71, align 4, !tbaa !5
  %73 = add nsw i32 %72, %65
  store i32 %73, ptr %71, align 4, !tbaa !5
  br label %74

74:                                               ; preds = %47
  %75 = load i32, ptr %6, align 4, !tbaa !5
  %76 = add nsw i32 %75, 1
  store i32 %76, ptr %6, align 4, !tbaa !5
  br label %43, !llvm.loop !12

77:                                               ; preds = %46
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #6
  store i32 0, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #6
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %78

78:                                               ; preds = %89, %77
  %79 = load i32, ptr %8, align 4, !tbaa !5
  %80 = load i32, ptr @M, align 4, !tbaa !5
  %81 = sdiv i32 %80, 2
  %82 = icmp sle i32 %79, %81
  br i1 %82, label %84, label %83

83:                                               ; preds = %78
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #6
  br label %92

84:                                               ; preds = %78
  %85 = load i32, ptr %8, align 4, !tbaa !5
  %86 = call noundef i32 @_Z3resi(i32 noundef %85)
  %87 = load i32, ptr %7, align 4, !tbaa !5
  %88 = add nsw i32 %87, %86
  store i32 %88, ptr %7, align 4, !tbaa !5
  br label %89

89:                                               ; preds = %84
  %90 = load i32, ptr %8, align 4, !tbaa !5
  %91 = add nsw i32 %90, 1
  store i32 %91, ptr %8, align 4, !tbaa !5
  br label %78, !llvm.loop !13

92:                                               ; preds = %83
  %93 = load i32, ptr %7, align 4, !tbaa !5
  %94 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %93)
  %95 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %94, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #6
  %96 = load i32, ptr %1, align 4
  ret i32 %96
}

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: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4fillIPiiEvT_S1_RKT0_(ptr noundef, ptr noundef, ptr noundef nonnull align 4 dereferenceable(4)) #4

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #5 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress 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 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}
!13 = distinct !{!13, !10}


; 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" }

@N = external dso_local global i32, align 4
@M = external dso_local global i32, align 4
@X = external dso_local global [100010 x i32], align 16
@cnt = external dso_local global [100010 x i32], align 16
@mod = external dso_local global [100010 x [2 x i32]], align 16
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", 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 nounwind uwtable
declare dso_local noundef i32 @_Z3resi(i32 noundef) local_unnamed_addr #1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = 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)
  %4 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %3, ptr noundef nonnull align 4 dereferenceable(4) @M)
  %5 = load i32, ptr @N, align 4, !tbaa !5
  %6 = icmp sgt i32 %5, 0
  br i1 %6, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #6
  store i32 0, ptr %1, align 4, !tbaa !5
  call void @_ZSt4fillIPiiEvT_S1_RKT0_(ptr noundef nonnull @cnt, ptr noundef nonnull getelementptr inbounds (i8, ptr @cnt, i64 400040), ptr noundef nonnull align 4 dereferenceable(4) %1)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #6
  %7 = load i32, ptr @N, align 4, !tbaa !5
  %8 = icmp sgt i32 %7, 0
  br i1 %8, label %.lr.ph25.preheader, label %._crit_edge26

.lr.ph25.preheader:                               ; preds = %._crit_edge
  %wide.trip.count = zext nneg i32 %7 to i64
  %xtraiter = and i64 %wide.trip.count, 3
  %9 = icmp ult i32 %7, 4
  br i1 %9, label %._crit_edge26.loopexit.unr-lcssa, label %.lr.ph25.preheader.new

.lr.ph25.preheader.new:                           ; preds = %.lr.ph25.preheader
  %unroll_iter = and i64 %wide.trip.count, 2147483644
  br label %.lr.ph25

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %10 = getelementptr inbounds [100010 x i32], ptr @X, i64 0, i64 %indvars.iv
  %11 = 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) %10)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %12 = load i32, ptr @N, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = icmp slt i64 %indvars.iv.next, %13
  br i1 %14, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge26.loopexit.unr-lcssa:                 ; preds = %.lr.ph25, %.lr.ph25.preheader
  %indvars.iv34.unr = phi i64 [ 0, %.lr.ph25.preheader ], [ %indvars.iv.next35.3, %.lr.ph25 ]
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %._crit_edge26, label %.lr.ph25.epil

.lr.ph25.epil:                                    ; preds = %._crit_edge26.loopexit.unr-lcssa, %.lr.ph25.epil
  %indvars.iv34.epil = phi i64 [ %indvars.iv.next35.epil, %.lr.ph25.epil ], [ %indvars.iv34.unr, %._crit_edge26.loopexit.unr-lcssa ]
  %epil.iter = phi i64 [ %epil.iter.next, %.lr.ph25.epil ], [ 0, %._crit_edge26.loopexit.unr-lcssa ]
  %15 = getelementptr inbounds [100010 x i32], ptr @X, i64 0, i64 %indvars.iv34.epil
  %16 = load i32, ptr %15, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [100010 x i32], ptr @cnt, i64 0, i64 %17
  %19 = load i32, ptr %18, align 4, !tbaa !5
  %20 = add nsw i32 %19, 1
  store i32 %20, ptr %18, align 4, !tbaa !5
  %indvars.iv.next35.epil = add nuw nsw i64 %indvars.iv34.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_edge26, label %.lr.ph25.epil, !llvm.loop !11

._crit_edge26:                                    ; preds = %._crit_edge26.loopexit.unr-lcssa, %.lr.ph25.epil, %._crit_edge
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #6
  store i32 0, ptr %2, align 4, !tbaa !5
  call void @_ZSt4fillIPiiEvT_S1_RKT0_(ptr noundef nonnull @mod, ptr noundef nonnull getelementptr inbounds (i8, ptr @mod, i64 800080), ptr noundef nonnull align 4 dereferenceable(4) %2)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #6
  %21 = load i32, ptr @M, align 4, !tbaa !5
  br label %46

.lr.ph25:                                         ; preds = %.lr.ph25, %.lr.ph25.preheader.new
  %indvars.iv34 = phi i64 [ 0, %.lr.ph25.preheader.new ], [ %indvars.iv.next35.3, %.lr.ph25 ]
  %niter = phi i64 [ 0, %.lr.ph25.preheader.new ], [ %niter.next.3, %.lr.ph25 ]
  %22 = getelementptr inbounds [100010 x i32], ptr @X, i64 0, i64 %indvars.iv34
  %23 = load i32, ptr %22, align 16, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds [100010 x i32], ptr @cnt, i64 0, i64 %24
  %26 = load i32, ptr %25, align 4, !tbaa !5
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %25, align 4, !tbaa !5
  %indvars.iv.next35 = or disjoint i64 %indvars.iv34, 1
  %28 = getelementptr inbounds [100010 x i32], ptr @X, i64 0, i64 %indvars.iv.next35
  %29 = load i32, ptr %28, align 4, !tbaa !5
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds [100010 x i32], ptr @cnt, i64 0, i64 %30
  %32 = load i32, ptr %31, align 4, !tbaa !5
  %33 = add nsw i32 %32, 1
  store i32 %33, ptr %31, align 4, !tbaa !5
  %indvars.iv.next35.1 = or disjoint i64 %indvars.iv34, 2
  %34 = getelementptr inbounds [100010 x i32], ptr @X, i64 0, i64 %indvars.iv.next35.1
  %35 = load i32, ptr %34, align 8, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds [100010 x i32], ptr @cnt, i64 0, i64 %36
  %38 = load i32, ptr %37, align 4, !tbaa !5
  %39 = add nsw i32 %38, 1
  store i32 %39, ptr %37, align 4, !tbaa !5
  %indvars.iv.next35.2 = or disjoint i64 %indvars.iv34, 3
  %40 = getelementptr inbounds [100010 x i32], ptr @X, i64 0, i64 %indvars.iv.next35.2
  %41 = load i32, ptr %40, align 4, !tbaa !5
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds [100010 x i32], ptr @cnt, i64 0, i64 %42
  %44 = load i32, ptr %43, align 4, !tbaa !5
  %45 = add nsw i32 %44, 1
  store i32 %45, ptr %43, align 4, !tbaa !5
  %indvars.iv.next35.3 = add nuw nsw i64 %indvars.iv34, 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_edge26.loopexit.unr-lcssa, label %.lr.ph25, !llvm.loop !13

.preheader:                                       ; preds = %46
  %.not28 = icmp slt i32 %21, -1
  br i1 %.not28, label %._crit_edge32, label %.lr.ph31

46:                                               ; preds = %._crit_edge26, %46
  %indvars.iv37 = phi i64 [ 0, %._crit_edge26 ], [ %indvars.iv.next38, %46 ]
  %47 = getelementptr inbounds [100010 x i32], ptr @cnt, i64 0, i64 %indvars.iv37
  %48 = load i32, ptr %47, align 4, !tbaa !5
  %49 = srem i32 %48, 2
  %50 = trunc nuw nsw i64 %indvars.iv37 to i32
  %51 = srem i32 %50, %21
  %52 = zext nneg i32 %51 to i64
  %53 = getelementptr inbounds [100010 x [2 x i32]], ptr @mod, i64 0, i64 %52
  %54 = load i32, ptr %53, align 8, !tbaa !5
  %55 = add nsw i32 %54, %49
  store i32 %55, ptr %53, align 8, !tbaa !5
  %56 = sdiv i32 %48, 2
  %57 = getelementptr inbounds [100010 x [2 x i32]], ptr @mod, i64 0, i64 %52, i64 1
  %58 = load i32, ptr %57, align 4, !tbaa !5
  %59 = add nsw i32 %58, %56
  store i32 %59, ptr %57, align 4, !tbaa !5
  %indvars.iv.next38 = add nuw nsw i64 %indvars.iv37, 1
  %exitcond40.not = icmp eq i64 %indvars.iv.next38, 100010
  br i1 %exitcond40.not, label %.preheader, label %46, !llvm.loop !14

._crit_edge32:                                    ; preds = %.lr.ph31, %.preheader
  %.018.lcssa = phi i32 [ 0, %.preheader ], [ %63, %.lr.ph31 ]
  %60 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.018.lcssa)
  %61 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %60, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
  ret i32 0

.lr.ph31:                                         ; preds = %.preheader, %.lr.ph31
  %.030 = phi i32 [ %64, %.lr.ph31 ], [ 0, %.preheader ]
  %.01829 = phi i32 [ %63, %.lr.ph31 ], [ 0, %.preheader ]
  %62 = call noundef i32 @_Z3resi(i32 noundef %.030)
  %63 = add nsw i32 %62, %.01829
  %64 = add nuw nsw i32 %.030, 1
  %65 = load i32, ptr @M, align 4, !tbaa !5
  %66 = sdiv i32 %65, 2
  %.not.not = icmp slt i32 %.030, %66
  br i1 %.not.not, label %.lr.ph31, label %._crit_edge32, !llvm.loop !15
}

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: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4fillIPiiEvT_S1_RKT0_(ptr noundef, ptr noundef, ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #3

; 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 #5 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress 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 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.unroll.disable"}
!13 = distinct !{!13, !10}
!14 = distinct !{!14, !10}
!15 = distinct !{!15, !10}


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