; LLVM IR from DionysiosB/CodeForces :: 0001-0099 (93A-Frames)

; 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 [17 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 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 i32, align 4
  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
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, ptr noundef %3, ptr noundef %4, ptr noundef %5)
  %8 = load i64, ptr %4, align 8, !tbaa !5
  %9 = add nsw i64 %8, -1
  store i64 %9, ptr %4, align 8, !tbaa !5
  %10 = load i64, ptr %5, align 8, !tbaa !5
  %11 = add nsw i64 %10, -1
  store i64 %11, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 0, ptr %6, align 4, !tbaa !9
  %12 = load i64, ptr %3, align 8, !tbaa !5
  %13 = icmp eq i64 %12, 1
  br i1 %13, label %39, label %14

14:                                               ; preds = %0
  %15 = load i64, ptr %4, align 8, !tbaa !5
  %16 = load i64, ptr %3, align 8, !tbaa !5
  %17 = sdiv i64 %15, %16
  %18 = load i64, ptr %5, align 8, !tbaa !5
  %19 = load i64, ptr %3, align 8, !tbaa !5
  %20 = sdiv i64 %18, %19
  %21 = icmp eq i64 %17, %20
  br i1 %21, label %39, label %22

22:                                               ; preds = %14
  %23 = load i64, ptr %4, align 8, !tbaa !5
  %24 = load i64, ptr %3, align 8, !tbaa !5
  %25 = srem i64 %23, %24
  %26 = icmp eq i64 %25, 0
  br i1 %26, label %27, label %40

27:                                               ; preds = %22
  %28 = load i64, ptr %5, align 8, !tbaa !5
  %29 = load i64, ptr %3, align 8, !tbaa !5
  %30 = srem i64 %28, %29
  %31 = load i64, ptr %3, align 8, !tbaa !5
  %32 = sub nsw i64 %31, 1
  %33 = icmp eq i64 %30, %32
  br i1 %33, label %39, label %34

34:                                               ; preds = %27
  %35 = load i64, ptr %5, align 8, !tbaa !5
  %36 = load i64, ptr %2, align 8, !tbaa !5
  %37 = sub nsw i64 %36, 1
  %38 = icmp eq i64 %35, %37
  br i1 %38, label %39, label %40

39:                                               ; preds = %34, %27, %14, %0
  store i32 1, ptr %6, align 4, !tbaa !9
  br label %85

40:                                               ; preds = %34, %22
  %41 = load i64, ptr %4, align 8, !tbaa !5
  %42 = load i64, ptr %3, align 8, !tbaa !5
  %43 = srem i64 %41, %42
  %44 = icmp eq i64 %43, 0
  br i1 %44, label %82, label %45

45:                                               ; preds = %40
  %46 = load i64, ptr %5, align 8, !tbaa !5
  %47 = load i64, ptr %3, align 8, !tbaa !5
  %48 = srem i64 %46, %47
  %49 = load i64, ptr %3, align 8, !tbaa !5
  %50 = sub nsw i64 %49, 1
  %51 = icmp eq i64 %48, %50
  br i1 %51, label %82, label %52

52:                                               ; preds = %45
  %53 = load i64, ptr %5, align 8, !tbaa !5
  %54 = load i64, ptr %2, align 8, !tbaa !5
  %55 = sub nsw i64 %54, 1
  %56 = icmp eq i64 %53, %55
  br i1 %56, label %82, label %57

57:                                               ; preds = %52
  %58 = load i64, ptr %3, align 8, !tbaa !5
  %59 = load i64, ptr %5, align 8, !tbaa !5
  %60 = load i64, ptr %3, align 8, !tbaa !5
  %61 = srem i64 %59, %60
  %62 = add nsw i64 %58, %61
  %63 = load i64, ptr %4, align 8, !tbaa !5
  %64 = load i64, ptr %3, align 8, !tbaa !5
  %65 = srem i64 %63, %64
  %66 = sub nsw i64 %62, %65
  %67 = add nsw i64 %66, 1
  %68 = load i64, ptr %5, align 8, !tbaa !5
  %69 = load i64, ptr %4, align 8, !tbaa !5
  %70 = sub nsw i64 %68, %69
  %71 = add nsw i64 %70, 1
  %72 = icmp eq i64 %67, %71
  br i1 %72, label %82, label %73

73:                                               ; preds = %57
  %74 = load i64, ptr %4, align 8, !tbaa !5
  %75 = load i64, ptr %3, align 8, !tbaa !5
  %76 = srem i64 %74, %75
  %77 = load i64, ptr %5, align 8, !tbaa !5
  %78 = load i64, ptr %3, align 8, !tbaa !5
  %79 = srem i64 %77, %78
  %80 = add nsw i64 %79, 1
  %81 = icmp eq i64 %76, %80
  br i1 %81, label %82, label %83

82:                                               ; preds = %73, %57, %52, %45, %40
  store i32 2, ptr %6, align 4, !tbaa !9
  br label %84

83:                                               ; preds = %73
  store i32 3, ptr %6, align 4, !tbaa !9
  br label %84

84:                                               ; preds = %83, %82
  br label %85

85:                                               ; preds = %84, %39
  %86 = load i32, ptr %6, align 4, !tbaa !9
  %87 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %86)
  call void @llvm.lifetime.end.p0(i64 4, 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
}

; 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

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

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { 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 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}


; 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 [17 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 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
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2, ptr noundef nonnull %3, ptr noundef nonnull %4)
  %6 = load i64, ptr %3, align 8, !tbaa !5
  %7 = add nsw i64 %6, -1
  store i64 %7, ptr %3, align 8, !tbaa !5
  %8 = load i64, ptr %4, align 8, !tbaa !5
  %9 = add nsw i64 %8, -1
  store i64 %9, ptr %4, align 8, !tbaa !5
  %10 = load i64, ptr %2, align 8, !tbaa !5
  %11 = icmp eq i64 %10, 1
  br i1 %11, label %.thread, label %12

12:                                               ; preds = %0
  %13 = sdiv i64 %7, %10
  %14 = srem i64 %7, %10
  %15 = sdiv i64 %9, %10
  %16 = srem i64 %9, %10
  %17 = icmp eq i64 %13, %15
  br i1 %17, label %.thread, label %18

18:                                               ; preds = %12
  %19 = icmp eq i64 %14, 0
  %20 = add nsw i64 %10, -1
  %21 = icmp eq i64 %16, %20
  %22 = load i64, ptr %1, align 8
  %23 = icmp eq i64 %8, %22
  %or.cond = select i1 %21, i1 true, i1 %23
  br i1 %19, label %24, label %25

24:                                               ; preds = %18
  %spec.select8 = select i1 %or.cond, i32 1, i32 2
  br label %.thread

25:                                               ; preds = %18
  br i1 %or.cond, label %.thread, label %26

26:                                               ; preds = %25
  %27 = sub i64 %10, %14
  %28 = add i64 %27, %16
  %29 = sub i64 %8, %6
  %30 = icmp eq i64 %28, %29
  %31 = add nsw i64 %16, 1
  %32 = icmp eq i64 %14, %31
  %or.cond7 = select i1 %30, i1 true, i1 %32
  %spec.select = select i1 %or.cond7, i32 2, i32 3
  br label %.thread

.thread:                                          ; preds = %24, %26, %25, %0, %12
  %.0 = phi i32 [ 1, %12 ], [ 1, %0 ], [ 2, %25 ], [ %spec.select, %26 ], [ %spec.select8, %24 ]
  %33 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %.0)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  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: 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: nofree nounwind
declare noundef i32 @printf(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

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"}


; Effective O3 passes: DivRemPairsPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass