; LLVM IR from DionysiosB/CodeForces :: 1000-1099 (1088A-EhabAndAnotherConstructionProblem)

; 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 [9 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 i8, align 1
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %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 1, ptr %3) #3
  store i8 0, ptr %3, align 1, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 -1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 -1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 2, ptr %6, align 8, !tbaa !9
  br label %10

10:                                               ; preds = %44, %0
  %11 = load i64, ptr %6, align 8, !tbaa !9
  %12 = load i64, ptr %2, align 8, !tbaa !9
  %13 = icmp sle i64 %11, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %10
  store i32 2, ptr %7, align 4
  br label %47

15:                                               ; preds = %10
  %16 = load i8, ptr %3, align 1, !tbaa !5, !range !11, !noundef !12
  %17 = trunc i8 %16 to i1
  br i1 %17, label %18, label %19

18:                                               ; preds = %15
  store i32 2, ptr %7, align 4
  br label %47

19:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  store i64 1, ptr %8, align 8, !tbaa !9
  br label %20

20:                                               ; preds = %39, %19
  %21 = load i64, ptr %8, align 8, !tbaa !9
  %22 = load i64, ptr %2, align 8, !tbaa !9
  %23 = icmp slt i64 %21, %22
  br i1 %23, label %25, label %24

24:                                               ; preds = %20
  store i32 5, ptr %7, align 4
  br label %42

25:                                               ; preds = %20
  %26 = load i64, ptr %8, align 8, !tbaa !9
  %27 = load i64, ptr %6, align 8, !tbaa !9
  %28 = mul nsw i64 %26, %27
  %29 = load i64, ptr %6, align 8, !tbaa !9
  %30 = mul nsw i64 %28, %29
  %31 = load i64, ptr %2, align 8, !tbaa !9
  %32 = icmp sgt i64 %30, %31
  br i1 %32, label %33, label %38

33:                                               ; preds = %25
  store i8 1, ptr %3, align 1, !tbaa !5
  %34 = load i64, ptr %8, align 8, !tbaa !9
  %35 = load i64, ptr %6, align 8, !tbaa !9
  %36 = mul nsw i64 %34, %35
  store i64 %36, ptr %4, align 8, !tbaa !9
  %37 = load i64, ptr %6, align 8, !tbaa !9
  store i64 %37, ptr %5, align 8, !tbaa !9
  store i32 5, ptr %7, align 4
  br label %42

38:                                               ; preds = %25
  br label %39

39:                                               ; preds = %38
  %40 = load i64, ptr %8, align 8, !tbaa !9
  %41 = add nsw i64 %40, 1
  store i64 %41, ptr %8, align 8, !tbaa !9
  br label %20, !llvm.loop !13

42:                                               ; preds = %33, %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %43

43:                                               ; preds = %42
  br label %44

44:                                               ; preds = %43
  %45 = load i64, ptr %6, align 8, !tbaa !9
  %46 = add nsw i64 %45, 1
  store i64 %46, ptr %6, align 8, !tbaa !9
  br label %10, !llvm.loop !15

47:                                               ; preds = %18, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %48

48:                                               ; preds = %47
  %49 = load i64, ptr %4, align 8, !tbaa !9
  %50 = icmp sgt i64 %49, 0
  br i1 %50, label %51, label %55

51:                                               ; preds = %48
  %52 = load i64, ptr %4, align 8, !tbaa !9
  %53 = load i64, ptr %5, align 8, !tbaa !9
  %54 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %52, i64 noundef %53)
  br label %57

55:                                               ; preds = %48
  %56 = call i32 @puts(ptr noundef @.str.2)
  br label %57

57:                                               ; preds = %55, %51
  store i32 0, ptr %1, align 4
  store i32 1, ptr %7, align 4
  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 1, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %58 = load i32, ptr %1, align 4
  ret i32 %58
}

; 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 @printf(ptr noundef, ...) #2

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


; 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 [9 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
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  %2 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %3 = load i64, ptr %1, align 8, !tbaa !5
  %.not29 = icmp slt i64 %3, 2
  br i1 %.not29, label %._crit_edge34.thread47, label %.preheader.us

.preheader.us:                                    ; preds = %0, %._crit_edge.us
  %.01533.us = phi i64 [ %10, %._crit_edge.us ], [ 2, %0 ]
  br label %6

4:                                                ; preds = %6
  %5 = add nuw nsw i64 %.022.us, 1
  %exitcond.not = icmp eq i64 %5, %3
  br i1 %exitcond.not, label %._crit_edge.us, label %6, !llvm.loop !9

6:                                                ; preds = %.preheader.us, %4
  %.022.us = phi i64 [ 1, %.preheader.us ], [ %5, %4 ]
  %7 = mul nuw nsw i64 %.022.us, %.01533.us
  %8 = mul nuw nsw i64 %7, %.01533.us
  %9 = icmp sgt i64 %8, %3
  br i1 %9, label %._crit_edge34.thread, label %4

._crit_edge.us:                                   ; preds = %4
  %10 = add nuw nsw i64 %.01533.us, 1
  %.not.us = icmp sge i64 %.01533.us, %3
  %brmerge.us = or i1 %.not.us, %9
  br i1 %brmerge.us, label %._crit_edge34.thread47, label %.preheader.us, !llvm.loop !11

._crit_edge34.thread:                             ; preds = %6
  %11 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %7, i64 noundef %.01533.us)
  br label %13

._crit_edge34.thread47:                           ; preds = %._crit_edge.us, %0
  %12 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  br label %13

13:                                               ; preds = %._crit_edge34.thread47, %._crit_edge34.thread
  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 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; 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"}
!11 = distinct !{!11, !10}


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