; LLVM IR from Shah-Shishir/Codeforces-Solutions :: 260A. Adding Digits (main)

; 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"

@.str = external hidden unnamed_addr constant [15 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [2 x i8], align 1

; 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 norecurse uwtable
define dso_local noundef i32 @main() #1 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i8, align 1
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.start.p0(i64 1, ptr %7) #3
  br label %8

8:                                                ; preds = %48, %0
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, ptr noundef %3, ptr noundef %4)
  %10 = icmp ne i32 %9, -1
  br i1 %10, label %11, label %49

11:                                               ; preds = %8
  store i8 0, ptr %7, align 1, !tbaa !5
  store i64 0, ptr %5, align 8, !tbaa !9
  br label %12

12:                                               ; preds = %28, %11
  %13 = load i64, ptr %5, align 8, !tbaa !9
  %14 = icmp sle i64 %13, 9
  br i1 %14, label %15, label %31

15:                                               ; preds = %12
  %16 = load i64, ptr %2, align 8, !tbaa !9
  %17 = mul nsw i64 %16, 10
  %18 = load i64, ptr %5, align 8, !tbaa !9
  %19 = add nsw i64 %17, %18
  store i64 %19, ptr %6, align 8, !tbaa !9
  %20 = load i64, ptr %6, align 8, !tbaa !9
  %21 = load i64, ptr %3, align 8, !tbaa !9
  %22 = srem i64 %20, %21
  %23 = icmp eq i64 %22, 0
  br i1 %23, label %24, label %27

24:                                               ; preds = %15
  store i8 1, ptr %7, align 1, !tbaa !5
  %25 = load i64, ptr %6, align 8, !tbaa !9
  %26 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %25)
  br label %31

27:                                               ; preds = %15
  br label %28

28:                                               ; preds = %27
  %29 = load i64, ptr %5, align 8, !tbaa !9
  %30 = add nsw i64 %29, 1
  store i64 %30, ptr %5, align 8, !tbaa !9
  br label %12, !llvm.loop !11

31:                                               ; preds = %24, %12
  %32 = load i8, ptr %7, align 1, !tbaa !5, !range !13, !noundef !14
  %33 = trunc i8 %32 to i1
  br i1 %33, label %36, label %34

34:                                               ; preds = %31
  %35 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  br label %48

36:                                               ; preds = %31
  store i64 2, ptr %5, align 8, !tbaa !9
  br label %37

37:                                               ; preds = %43, %36
  %38 = load i64, ptr %5, align 8, !tbaa !9
  %39 = load i64, ptr %4, align 8, !tbaa !9
  %40 = icmp sle i64 %38, %39
  br i1 %40, label %41, label %46

41:                                               ; preds = %37
  %42 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  br label %43

43:                                               ; preds = %41
  %44 = load i64, ptr %5, align 8, !tbaa !9
  %45 = add nsw i64 %44, 1
  store i64 %45, ptr %5, align 8, !tbaa !9
  br label %37, !llvm.loop !15

46:                                               ; preds = %37
  %47 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  br label %48

48:                                               ; preds = %46, %34
  br label %8, !llvm.loop !16

49:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 1, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  ret i32 0
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

declare i32 @printf(ptr noundef, ...) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { 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 = !{!"bool", !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 = !{i8 0, i8 2}
!14 = !{}
!15 = distinct !{!15, !12}
!16 = distinct !{!16, !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"

@.str = external hidden unnamed_addr constant [15 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [2 x i8], align 1

; 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 nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #1 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2, ptr noundef nonnull %3)
  %.not13 = icmp eq i32 %4, -1
  br i1 %.not13, label %._crit_edge14, label %.preheader

.preheader:                                       ; preds = %0, %.critedge
  %5 = load i64, ptr %1, align 8, !tbaa !5
  %6 = mul nsw i64 %5, 10
  %7 = load i64, ptr %2, align 8, !tbaa !5
  %8 = srem i64 %6, %7
  %9 = icmp eq i64 %8, 0
  br i1 %9, label %46, label %10

10:                                               ; preds = %.preheader
  %11 = or disjoint i64 %6, 1
  %12 = srem i64 %11, %7
  %13 = icmp eq i64 %12, 0
  br i1 %13, label %46, label %14

14:                                               ; preds = %10
  %15 = add nsw i64 %6, 2
  %16 = srem i64 %15, %7
  %17 = icmp eq i64 %16, 0
  br i1 %17, label %46, label %18

18:                                               ; preds = %14
  %19 = add nsw i64 %6, 3
  %20 = srem i64 %19, %7
  %21 = icmp eq i64 %20, 0
  br i1 %21, label %46, label %22

22:                                               ; preds = %18
  %23 = add nsw i64 %6, 4
  %24 = srem i64 %23, %7
  %25 = icmp eq i64 %24, 0
  br i1 %25, label %46, label %26

26:                                               ; preds = %22
  %27 = add nsw i64 %6, 5
  %28 = srem i64 %27, %7
  %29 = icmp eq i64 %28, 0
  br i1 %29, label %46, label %30

30:                                               ; preds = %26
  %31 = add nsw i64 %6, 6
  %32 = srem i64 %31, %7
  %33 = icmp eq i64 %32, 0
  br i1 %33, label %46, label %34

34:                                               ; preds = %30
  %35 = add nsw i64 %6, 7
  %36 = srem i64 %35, %7
  %37 = icmp eq i64 %36, 0
  br i1 %37, label %46, label %38

38:                                               ; preds = %34
  %39 = add nsw i64 %6, 8
  %40 = srem i64 %39, %7
  %41 = icmp eq i64 %40, 0
  br i1 %41, label %46, label %42

42:                                               ; preds = %38
  %43 = add nsw i64 %6, 9
  %44 = srem i64 %43, %7
  %45 = icmp eq i64 %44, 0
  br i1 %45, label %46, label %.critedge

46:                                               ; preds = %42, %38, %34, %30, %26, %22, %18, %14, %10, %.preheader
  %.lcssa = phi i64 [ %6, %.preheader ], [ %11, %10 ], [ %15, %14 ], [ %19, %18 ], [ %23, %22 ], [ %27, %26 ], [ %31, %30 ], [ %35, %34 ], [ %39, %38 ], [ %43, %42 ]
  %47 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %.lcssa)
  %48 = load i64, ptr %3, align 8, !tbaa !5
  %.not911 = icmp slt i64 %48, 2
  br i1 %.not911, label %.critedge, label %.lr.ph

.lr.ph:                                           ; preds = %46, %.lr.ph
  %.112 = phi i64 [ %50, %.lr.ph ], [ 2, %46 ]
  %49 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3)
  %50 = add nuw nsw i64 %.112, 1
  %51 = load i64, ptr %3, align 8, !tbaa !5
  %.not9.not = icmp slt i64 %.112, %51
  br i1 %.not9.not, label %.lr.ph, label %.critedge, !llvm.loop !9

.critedge:                                        ; preds = %.lr.ph, %46, %42
  %.str.4.sink = phi ptr [ @.str.2, %42 ], [ @.str.4, %46 ], [ @.str.4, %.lr.ph ]
  %52 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) %.str.4.sink)
  %53 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2, ptr noundef nonnull %3)
  %.not = icmp eq i32 %53, -1
  br i1 %.not, label %._crit_edge14, label %.preheader, !llvm.loop !11

._crit_edge14:                                    ; preds = %.critedge, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #3
  ret i32 0
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nofree norecurse 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 = { 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 #3 = { 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 = distinct !{!11, !10}


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