; LLVM IR from DionysiosB/CodeForces :: 0800-0899 (831A-UnimodalArray)

; 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 [4 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 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 i32, align 4
  %5 = alloca i8, align 1
  %6 = alloca i64, align 8
  %7 = alloca i32, align 4
  %8 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  store i32 0, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %5) #3
  store i8 1, ptr %5, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 1, ptr %6, align 8, !tbaa !11
  br label %11

11:                                               ; preds = %51, %0
  %12 = load i64, ptr %6, align 8, !tbaa !11
  %13 = load i64, ptr %2, align 8, !tbaa !11
  %14 = icmp slt i64 %12, %13
  br i1 %14, label %16, label %15

15:                                               ; preds = %11
  store i32 2, ptr %7, align 4
  br label %54

16:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %8)
  %18 = load i64, ptr %8, align 8, !tbaa !11
  %19 = load i64, ptr %3, align 8, !tbaa !11
  %20 = icmp sgt i64 %18, %19
  br i1 %20, label %21, label %25

21:                                               ; preds = %16
  %22 = load i32, ptr %4, align 4, !tbaa !5
  %23 = icmp sgt i32 %22, 0
  br i1 %23, label %24, label %25

24:                                               ; preds = %21
  store i8 0, ptr %5, align 1, !tbaa !9
  store i32 2, ptr %7, align 4
  br label %48

25:                                               ; preds = %21, %16
  %26 = load i64, ptr %8, align 8, !tbaa !11
  %27 = load i64, ptr %3, align 8, !tbaa !11
  %28 = icmp eq i64 %26, %27
  br i1 %28, label %29, label %39

29:                                               ; preds = %25
  %30 = load i32, ptr %4, align 4, !tbaa !5
  %31 = icmp eq i32 %30, 0
  br i1 %31, label %32, label %33

32:                                               ; preds = %29
  store i32 1, ptr %4, align 4, !tbaa !5
  br label %38

33:                                               ; preds = %29
  %34 = load i32, ptr %4, align 4, !tbaa !5
  %35 = icmp sgt i32 %34, 1
  br i1 %35, label %36, label %37

36:                                               ; preds = %33
  store i8 0, ptr %5, align 1, !tbaa !9
  store i32 2, ptr %7, align 4
  br label %48

37:                                               ; preds = %33
  br label %38

38:                                               ; preds = %37, %32
  br label %45

39:                                               ; preds = %25
  %40 = load i64, ptr %8, align 8, !tbaa !11
  %41 = load i64, ptr %3, align 8, !tbaa !11
  %42 = icmp slt i64 %40, %41
  br i1 %42, label %43, label %44

43:                                               ; preds = %39
  store i32 2, ptr %4, align 4, !tbaa !5
  br label %44

44:                                               ; preds = %43, %39
  br label %45

45:                                               ; preds = %44, %38
  br label %46

46:                                               ; preds = %45
  %47 = load i64, ptr %8, align 8, !tbaa !11
  store i64 %47, ptr %3, align 8, !tbaa !11
  store i32 0, ptr %7, align 4
  br label %48

48:                                               ; preds = %46, %36, %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  %49 = load i32, ptr %7, align 4
  switch i32 %49, label %54 [
    i32 0, label %50
  ]

50:                                               ; preds = %48
  br label %51

51:                                               ; preds = %50
  %52 = load i64, ptr %6, align 8, !tbaa !11
  %53 = add nsw i64 %52, 1
  store i64 %53, ptr %6, align 8, !tbaa !11
  br label %11, !llvm.loop !13

54:                                               ; preds = %48, %15
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %55

55:                                               ; preds = %54
  %56 = load i8, ptr %5, align 1, !tbaa !9, !range !15, !noundef !16
  %57 = trunc i8 %56 to i1
  %58 = zext i1 %57 to i64
  %59 = select i1 %57, ptr @.str.1, ptr @.str.2
  %60 = call i32 @puts(ptr noundef %59)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 4, 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
  %61 = load i32, ptr %1, align 4
  ret i32 %61
}

; 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

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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"bool", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{i8 0, i8 2}
!16 = !{}


; 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 [4 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 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
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  %6 = load i64, ptr %1, align 8, !tbaa !5
  %.not20 = icmp sgt i64 %6, 1
  br i1 %.not20, label %.lr.ph, label %.loopexit

.lr.ph:                                           ; preds = %0, %18
  %.0922 = phi i64 [ %19, %18 ], [ 1, %0 ]
  %.01121 = phi i32 [ %.112, %18 ], [ 0, %0 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %3)
  %8 = load i64, ptr %3, align 8, !tbaa !5
  %9 = load i64, ptr %2, align 8, !tbaa !5
  %10 = icmp sgt i64 %8, %9
  %11 = icmp sgt i32 %.01121, 0
  %or.cond = select i1 %10, i1 %11, i1 false
  br i1 %or.cond, label %.thread, label %12

12:                                               ; preds = %.lr.ph
  %13 = icmp eq i64 %8, %9
  br i1 %13, label %14, label %16

14:                                               ; preds = %12
  %15 = icmp sgt i32 %.01121, 1
  br i1 %15, label %.thread, label %18

16:                                               ; preds = %12
  %17 = icmp slt i64 %8, %9
  %spec.select = select i1 %17, i32 2, i32 %.01121
  br label %18

.thread:                                          ; preds = %.lr.ph, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  br label %.loopexit

18:                                               ; preds = %16, %14
  %.112 = phi i32 [ 1, %14 ], [ %spec.select, %16 ]
  store i64 %8, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  %19 = add nuw nsw i64 %.0922, 1
  %20 = load i64, ptr %1, align 8, !tbaa !5
  %.not = icmp slt i64 %19, %20
  br i1 %.not, label %.lr.ph, label %.loopexit, !llvm.loop !9

.loopexit:                                        ; preds = %18, %0, %.thread
  %21 = phi ptr [ @.str.2, %.thread ], [ @.str.1, %0 ], [ @.str.1, %18 ]
  %22 = call i32 @puts(ptr noundef nonnull dereferenceable(1) %21)
  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: 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

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"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass