; LLVM IR from DionysiosB/CodeForces :: 1200-1299 (1255B-FridgeLockers)

; 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 [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %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 i64, align 8
  %8 = alloca i32, align 4
  %9 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %11

11:                                               ; preds = %61, %59, %0
  %12 = load i64, ptr %2, align 8, !tbaa !5
  %13 = add nsw i64 %12, -1
  store i64 %13, ptr %2, align 8, !tbaa !5
  %14 = icmp ne i64 %12, 0
  br i1 %14, label %15, label %62

15:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %16 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %3, ptr noundef %4)
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 0, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 0, ptr %6, align 8, !tbaa !5
  br label %17

17:                                               ; preds = %27, %15
  %18 = load i64, ptr %6, align 8, !tbaa !5
  %19 = load i64, ptr %3, align 8, !tbaa !5
  %20 = icmp slt i64 %18, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %30

22:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %23 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %7)
  %24 = load i64, ptr %7, align 8, !tbaa !5
  %25 = load i64, ptr %5, align 8, !tbaa !5
  %26 = add nsw i64 %25, %24
  store i64 %26, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %27

27:                                               ; preds = %22
  %28 = load i64, ptr %6, align 8, !tbaa !5
  %29 = add nsw i64 %28, 1
  store i64 %29, ptr %6, align 8, !tbaa !5
  br label %17, !llvm.loop !9

30:                                               ; preds = %21
  %31 = load i64, ptr %4, align 8, !tbaa !5
  %32 = load i64, ptr %3, align 8, !tbaa !5
  %33 = icmp slt i64 %31, %32
  br i1 %33, label %37, label %34

34:                                               ; preds = %30
  %35 = load i64, ptr %3, align 8, !tbaa !5
  %36 = icmp sle i64 %35, 2
  br i1 %36, label %37, label %39

37:                                               ; preds = %34, %30
  %38 = call i32 @puts(ptr noundef @.str.2)
  store i32 2, ptr %8, align 4
  br label %59, !llvm.loop !11

39:                                               ; preds = %34
  %40 = load i64, ptr %5, align 8, !tbaa !5
  %41 = mul nsw i64 2, %40
  %42 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i64 noundef %41)
  %43 = load i64, ptr %3, align 8, !tbaa !5
  %44 = call i32 (ptr, ...) @printf(ptr noundef @.str.4, i64 noundef %43)
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  store i64 1, ptr %9, align 8, !tbaa !5
  br label %45

45:                                               ; preds = %55, %39
  %46 = load i64, ptr %9, align 8, !tbaa !5
  %47 = load i64, ptr %3, align 8, !tbaa !5
  %48 = icmp slt i64 %46, %47
  br i1 %48, label %50, label %49

49:                                               ; preds = %45
  store i32 7, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %58

50:                                               ; preds = %45
  %51 = load i64, ptr %9, align 8, !tbaa !5
  %52 = load i64, ptr %9, align 8, !tbaa !5
  %53 = add nsw i64 %52, 1
  %54 = call i32 (ptr, ...) @printf(ptr noundef @.str.5, i64 noundef %51, i64 noundef %53)
  br label %55

55:                                               ; preds = %50
  %56 = load i64, ptr %9, align 8, !tbaa !5
  %57 = add nsw i64 %56, 1
  store i64 %57, ptr %9, align 8, !tbaa !5
  br label %45, !llvm.loop !12

58:                                               ; preds = %49
  store i32 0, ptr %8, align 4
  br label %59

59:                                               ; preds = %58, %37
  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
  %60 = load i32, ptr %8, align 4
  switch i32 %60, label %64 [
    i32 0, label %61
    i32 2, label %11
  ]

61:                                               ; preds = %59
  br label %11, !llvm.loop !11

62:                                               ; preds = %11
  store i32 0, ptr %1, align 4
  store i32 1, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %63 = load i32, ptr %1, align 4
  ret i32 %63

64:                                               ; preds = %59
  unreachable
}

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

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

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

declare i32 @puts(ptr noundef) #2

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

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"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}
!12 = distinct !{!12, !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"

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [7 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %6 = load i64, ptr %1, align 8, !tbaa !5
  %7 = add nsw i64 %6, -1
  store i64 %7, ptr %1, align 8, !tbaa !5
  %.not19 = icmp eq i64 %6, 0
  br i1 %.not19, label %._crit_edge22, label %.lr.ph21

.lr.ph21:                                         ; preds = %0, %.loopexit
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %2, ptr noundef nonnull %3)
  %9 = load i64, ptr %2, align 8
  %10 = icmp sgt i64 %9, 0
  br i1 %10, label %.lr.ph, label %._crit_edge.thread

._crit_edge:                                      ; preds = %.lr.ph
  %11 = load i64, ptr %3, align 8, !tbaa !5
  %12 = icmp slt i64 %11, %18
  %13 = icmp slt i64 %18, 3
  %or.cond = or i1 %13, %12
  br i1 %or.cond, label %._crit_edge.thread, label %21

.lr.ph:                                           ; preds = %.lr.ph21, %.lr.ph
  %.01014 = phi i64 [ %17, %.lr.ph ], [ 0, %.lr.ph21 ]
  %.01113 = phi i64 [ %16, %.lr.ph ], [ 0, %.lr.ph21 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %14 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %4)
  %15 = load i64, ptr %4, align 8, !tbaa !5
  %16 = add nsw i64 %15, %.01113
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  %17 = add nuw nsw i64 %.01014, 1
  %18 = load i64, ptr %2, align 8
  %19 = icmp slt i64 %17, %18
  br i1 %19, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge.thread:                               ; preds = %.lr.ph21, %._crit_edge
  %20 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  br label %.loopexit, !llvm.loop !11

21:                                               ; preds = %._crit_edge
  %22 = shl nsw i64 %16, 1
  %23 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i64 noundef %22)
  %24 = load i64, ptr %2, align 8, !tbaa !5
  %25 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4, i64 noundef %24)
  %26 = load i64, ptr %2, align 8, !tbaa !5
  %27 = icmp sgt i64 %26, 1
  br i1 %27, label %.lr.ph18, label %.loopexit

.lr.ph18:                                         ; preds = %21, %.lr.ph18
  %.016 = phi i64 [ %28, %.lr.ph18 ], [ 1, %21 ]
  %28 = add nuw nsw i64 %.016, 1
  %29 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5, i64 noundef %.016, i64 noundef %28)
  %30 = load i64, ptr %2, align 8, !tbaa !5
  %31 = icmp slt i64 %28, %30
  br i1 %31, label %.lr.ph18, label %.loopexit, !llvm.loop !12

.loopexit:                                        ; preds = %.lr.ph18, %21, %._crit_edge.thread
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  %32 = load i64, ptr %1, align 8, !tbaa !5
  %33 = add nsw i64 %32, -1
  store i64 %33, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %32, 0
  br i1 %.not, label %._crit_edge22, label %.lr.ph21

._crit_edge22:                                    ; preds = %.loopexit, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #3
  ret i32 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: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

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

; Function Attrs: nofree nounwind
declare noundef i32 @puts(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 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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", !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}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass