; LLVM IR from VastoLorde95/Competitive-Programming :: Codeforces/251 Division 2/Problem D (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"

%"struct.std::greater" = type { i8 }

@n = external dso_local global i32, align 4
@m = external dso_local global i32, align 4
@a = external dso_local global [100100 x i32], align 16
@b = external dso_local global [100100 x i32], align 16
@ans = external dso_local global i64, align 8
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [7 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca %"struct.std::greater", align 1
  %5 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %6 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @n, ptr noundef @m)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %7

7:                                                ; preds = %17, %0
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = load i32, ptr @n, align 4, !tbaa !5
  %10 = icmp slt i32 %8, %9
  br i1 %10, label %12, label %11

11:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  br label %20

12:                                               ; preds = %7
  %13 = load i32, ptr %2, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds [100100 x i32], ptr @a, i64 0, i64 %14
  %16 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %15)
  br label %17

17:                                               ; preds = %12
  %18 = load i32, ptr %2, align 4, !tbaa !5
  %19 = add nsw i32 %18, 1
  store i32 %19, ptr %2, align 4, !tbaa !5
  br label %7, !llvm.loop !9

20:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #5
  store i32 0, ptr %3, align 4, !tbaa !5
  br label %21

21:                                               ; preds = %31, %20
  %22 = load i32, ptr %3, align 4, !tbaa !5
  %23 = load i32, ptr @m, align 4, !tbaa !5
  %24 = icmp slt i32 %22, %23
  br i1 %24, label %26, label %25

25:                                               ; preds = %21
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #5
  br label %34

26:                                               ; preds = %21
  %27 = load i32, ptr %3, align 4, !tbaa !5
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds [100100 x i32], ptr @b, i64 0, i64 %28
  %30 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %29)
  br label %31

31:                                               ; preds = %26
  %32 = load i32, ptr %3, align 4, !tbaa !5
  %33 = add nsw i32 %32, 1
  store i32 %33, ptr %3, align 4, !tbaa !5
  br label %21, !llvm.loop !11

34:                                               ; preds = %25
  %35 = load i32, ptr @n, align 4, !tbaa !5
  %36 = sext i32 %35 to i64
  %37 = getelementptr inbounds i32, ptr @a, i64 %36
  call void @_ZSt4sortIPiEvT_S1_(ptr noundef @a, ptr noundef %37)
  %38 = load i32, ptr @m, align 4, !tbaa !5
  %39 = sext i32 %38 to i64
  %40 = getelementptr inbounds i32, ptr @b, i64 %39
  call void @_ZSt4sortIPiSt7greaterIiEEvT_S3_T0_(ptr noundef @b, ptr noundef %40)
  %41 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) @n, ptr noundef nonnull align 4 dereferenceable(4) @m)
  %42 = load i32, ptr %41, align 4, !tbaa !5
  store i32 %42, ptr @n, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  store i32 0, ptr %5, align 4, !tbaa !5
  br label %43

43:                                               ; preds = %73, %34
  %44 = load i32, ptr %5, align 4, !tbaa !5
  %45 = load i32, ptr @n, align 4, !tbaa !5
  %46 = icmp slt i32 %44, %45
  br i1 %46, label %47, label %57

47:                                               ; preds = %43
  %48 = load i32, ptr %5, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds [100100 x i32], ptr @a, i64 0, i64 %49
  %51 = load i32, ptr %50, align 4, !tbaa !5
  %52 = load i32, ptr %5, align 4, !tbaa !5
  %53 = sext i32 %52 to i64
  %54 = getelementptr inbounds [100100 x i32], ptr @b, i64 0, i64 %53
  %55 = load i32, ptr %54, align 4, !tbaa !5
  %56 = icmp slt i32 %51, %55
  br label %57

57:                                               ; preds = %47, %43
  %58 = phi i1 [ false, %43 ], [ %56, %47 ]
  br i1 %58, label %60, label %59

59:                                               ; preds = %57
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  br label %76

60:                                               ; preds = %57
  %61 = load i32, ptr %5, align 4, !tbaa !5
  %62 = sext i32 %61 to i64
  %63 = getelementptr inbounds [100100 x i32], ptr @b, i64 0, i64 %62
  %64 = load i32, ptr %63, align 4, !tbaa !5
  %65 = load i32, ptr %5, align 4, !tbaa !5
  %66 = sext i32 %65 to i64
  %67 = getelementptr inbounds [100100 x i32], ptr @a, i64 0, i64 %66
  %68 = load i32, ptr %67, align 4, !tbaa !5
  %69 = sub nsw i32 %64, %68
  %70 = sext i32 %69 to i64
  %71 = load i64, ptr @ans, align 8, !tbaa !12
  %72 = add nsw i64 %71, %70
  store i64 %72, ptr @ans, align 8, !tbaa !12
  br label %73

73:                                               ; preds = %60
  %74 = load i32, ptr %5, align 4, !tbaa !5
  %75 = add nsw i32 %74, 1
  store i32 %75, ptr %5, align 4, !tbaa !5
  br label %43, !llvm.loop !14

76:                                               ; preds = %59
  %77 = load i64, ptr @ans, align 8, !tbaa !12
  %78 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %77)
  ret i32 0
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPiEvT_S1_(ptr noundef, ptr noundef) #3

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPiSt7greaterIiEEvT_S3_T0_(ptr noundef, ptr noundef) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #4

declare i32 @printf(ptr noundef, ...) #1

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #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 = !{!"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 = !{!13, !13, i64 0}
!13 = !{!"long long", !7, i64 0}
!14 = distinct !{!14, !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"

@n = external dso_local global i32, align 4
@m = external dso_local global i32, align 4
@a = external dso_local global [100100 x i32], align 16
@b = external dso_local global [100100 x i32], align 16
@ans = external dso_local local_unnamed_addr global i64, align 8
@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [7 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @n, ptr noundef nonnull @m)
  %2 = load i32, ptr @n, align 4, !tbaa !5
  %3 = icmp sgt i32 %2, 0
  br i1 %3, label %.lr.ph, label %.preheader

.preheader:                                       ; preds = %.lr.ph, %0
  %4 = phi i32 [ %2, %0 ], [ %9, %.lr.ph ]
  %5 = load i32, ptr @m, align 4, !tbaa !5
  %6 = icmp sgt i32 %5, 0
  br i1 %6, label %.lr.ph18, label %._crit_edge

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %7 = getelementptr inbounds [100100 x i32], ptr @a, i64 0, i64 %indvars.iv
  %8 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %7)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %9 = load i32, ptr @n, align 4, !tbaa !5
  %10 = sext i32 %9 to i64
  %11 = icmp slt i64 %indvars.iv.next, %10
  br i1 %11, label %.lr.ph, label %.preheader, !llvm.loop !9

._crit_edge.loopexit:                             ; preds = %.lr.ph18
  %.pre = load i32, ptr @n, align 4, !tbaa !5
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %.preheader
  %12 = phi i32 [ %.pre, %._crit_edge.loopexit ], [ %4, %.preheader ]
  %13 = sext i32 %12 to i64
  %14 = getelementptr inbounds i32, ptr @a, i64 %13
  tail call void @_ZSt4sortIPiEvT_S1_(ptr noundef nonnull @a, ptr noundef nonnull %14)
  %15 = load i32, ptr @m, align 4, !tbaa !5
  %16 = sext i32 %15 to i64
  %17 = getelementptr inbounds i32, ptr @b, i64 %16
  tail call void @_ZSt4sortIPiSt7greaterIiEEvT_S3_T0_(ptr noundef nonnull @b, ptr noundef nonnull %17)
  %18 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) @n, ptr noundef nonnull align 4 dereferenceable(4) @m)
  %19 = load i32, ptr %18, align 4, !tbaa !5
  store i32 %19, ptr @n, align 4, !tbaa !5
  %ans.promoted = load i64, ptr @ans, align 8, !tbaa !11
  %20 = icmp sgt i32 %19, 0
  br i1 %20, label %.lr.ph21.preheader, label %.critedge

.lr.ph21.preheader:                               ; preds = %._crit_edge
  %wide.trip.count = zext nneg i32 %19 to i64
  br label %.lr.ph21

.lr.ph18:                                         ; preds = %.preheader, %.lr.ph18
  %indvars.iv24 = phi i64 [ %indvars.iv.next25, %.lr.ph18 ], [ 0, %.preheader ]
  %21 = getelementptr inbounds [100100 x i32], ptr @b, i64 0, i64 %indvars.iv24
  %22 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %21)
  %indvars.iv.next25 = add nuw nsw i64 %indvars.iv24, 1
  %23 = load i32, ptr @m, align 4, !tbaa !5
  %24 = sext i32 %23 to i64
  %25 = icmp slt i64 %indvars.iv.next25, %24
  br i1 %25, label %.lr.ph18, label %._crit_edge.loopexit, !llvm.loop !13

.lr.ph21:                                         ; preds = %.lr.ph21.preheader, %34
  %indvars.iv27 = phi i64 [ 0, %.lr.ph21.preheader ], [ %indvars.iv.next28, %34 ]
  %26 = phi i64 [ %ans.promoted, %.lr.ph21.preheader ], [ %37, %34 ]
  %27 = getelementptr inbounds [100100 x i32], ptr @a, i64 0, i64 %indvars.iv27
  %28 = load i32, ptr %27, align 4, !tbaa !5
  %29 = getelementptr inbounds [100100 x i32], ptr @b, i64 0, i64 %indvars.iv27
  %30 = load i32, ptr %29, align 4, !tbaa !5
  %31 = icmp slt i32 %28, %30
  br i1 %31, label %34, label %.critedge

.critedge:                                        ; preds = %.lr.ph21, %34, %._crit_edge
  %32 = phi i64 [ %ans.promoted, %._crit_edge ], [ %26, %.lr.ph21 ], [ %37, %34 ]
  %33 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %32)
  ret i32 0

34:                                               ; preds = %.lr.ph21
  %35 = sub nsw i32 %30, %28
  %36 = sext i32 %35 to i64
  %37 = add nsw i64 %26, %36
  store i64 %37, ptr @ans, align 8, !tbaa !11
  %indvars.iv.next28 = add nuw nsw i64 %indvars.iv27, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next28, %wide.trip.count
  br i1 %exitcond.not, label %.critedge, label %.lr.ph21, !llvm.loop !14
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPiEvT_S1_(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPiSt7greaterIiEEvT_S3_T0_(ptr noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3minIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nofree nounwind "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 = { 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 #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" }

!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 = !{!12, !12, i64 0}
!12 = !{!"long long", !7, i64 0}
!13 = distinct !{!13, !10}
!14 = distinct !{!14, !10}


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