; LLVM IR from DionysiosB/CodeForces :: 0200-0299 (294A-ShaassAndOskols)

; 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 [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.2 = 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 i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #5
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %10 = load i32, ptr %2, align 4, !tbaa !5
  %11 = add nsw i32 %10, 1
  %12 = sext i32 %11 to i64
  %13 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %12, i64 4)
  %14 = extractvalue { i64, i1 } %13, 1
  %15 = extractvalue { i64, i1 } %13, 0
  %16 = select i1 %14, i64 -1, i64 %15
  %17 = call noalias noundef nonnull ptr @_Znam(i64 noundef %16) #6
  store ptr %17, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  store i32 1, ptr %4, align 4, !tbaa !5
  br label %18

18:                                               ; preds = %29, %0
  %19 = load i32, ptr %4, align 4, !tbaa !5
  %20 = load i32, ptr %2, align 4, !tbaa !5
  %21 = icmp sle i32 %19, %20
  br i1 %21, label %23, label %22

22:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  br label %32

23:                                               ; preds = %18
  %24 = load ptr, ptr %3, align 8, !tbaa !9
  %25 = load i32, ptr %4, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds i32, ptr %24, i64 %26
  %28 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %27)
  br label %29

29:                                               ; preds = %23
  %30 = load i32, ptr %4, align 4, !tbaa !5
  %31 = add nsw i32 %30, 1
  store i32 %31, ptr %4, align 4, !tbaa !5
  br label %18, !llvm.loop !11

32:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  %33 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %5)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  store i32 0, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %34

34:                                               ; preds = %71, %32
  %35 = load i32, ptr %5, align 4, !tbaa !5
  %36 = add nsw i32 %35, -1
  store i32 %36, ptr %5, align 4, !tbaa !5
  %37 = icmp ne i32 %35, 0
  br i1 %37, label %38, label %76

38:                                               ; preds = %34
  %39 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %6, ptr noundef %7)
  %40 = load i32, ptr %6, align 4, !tbaa !5
  %41 = icmp sgt i32 %40, 1
  br i1 %41, label %42, label %52

42:                                               ; preds = %38
  %43 = load i32, ptr %7, align 4, !tbaa !5
  %44 = sub nsw i32 %43, 1
  %45 = load ptr, ptr %3, align 8, !tbaa !9
  %46 = load i32, ptr %6, align 4, !tbaa !5
  %47 = sub nsw i32 %46, 1
  %48 = sext i32 %47 to i64
  %49 = getelementptr inbounds i32, ptr %45, i64 %48
  %50 = load i32, ptr %49, align 4, !tbaa !5
  %51 = add nsw i32 %50, %44
  store i32 %51, ptr %49, align 4, !tbaa !5
  br label %52

52:                                               ; preds = %42, %38
  %53 = load i32, ptr %6, align 4, !tbaa !5
  %54 = load i32, ptr %2, align 4, !tbaa !5
  %55 = icmp slt i32 %53, %54
  br i1 %55, label %56, label %71

56:                                               ; preds = %52
  %57 = load ptr, ptr %3, align 8, !tbaa !9
  %58 = load i32, ptr %6, align 4, !tbaa !5
  %59 = sext i32 %58 to i64
  %60 = getelementptr inbounds i32, ptr %57, i64 %59
  %61 = load i32, ptr %60, align 4, !tbaa !5
  %62 = load i32, ptr %7, align 4, !tbaa !5
  %63 = sub nsw i32 %61, %62
  %64 = load ptr, ptr %3, align 8, !tbaa !9
  %65 = load i32, ptr %6, align 4, !tbaa !5
  %66 = add nsw i32 %65, 1
  %67 = sext i32 %66 to i64
  %68 = getelementptr inbounds i32, ptr %64, i64 %67
  %69 = load i32, ptr %68, align 4, !tbaa !5
  %70 = add nsw i32 %69, %63
  store i32 %70, ptr %68, align 4, !tbaa !5
  br label %71

71:                                               ; preds = %56, %52
  %72 = load ptr, ptr %3, align 8, !tbaa !9
  %73 = load i32, ptr %6, align 4, !tbaa !5
  %74 = sext i32 %73 to i64
  %75 = getelementptr inbounds i32, ptr %72, i64 %74
  store i32 0, ptr %75, align 4, !tbaa !5
  br label %34, !llvm.loop !13

76:                                               ; preds = %34
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #5
  store i32 1, ptr %8, align 4, !tbaa !5
  br label %77

77:                                               ; preds = %89, %76
  %78 = load i32, ptr %8, align 4, !tbaa !5
  %79 = load i32, ptr %2, align 4, !tbaa !5
  %80 = icmp sle i32 %78, %79
  br i1 %80, label %82, label %81

81:                                               ; preds = %77
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  br label %92

82:                                               ; preds = %77
  %83 = load ptr, ptr %3, align 8, !tbaa !9
  %84 = load i32, ptr %8, align 4, !tbaa !5
  %85 = sext i32 %84 to i64
  %86 = getelementptr inbounds i32, ptr %83, i64 %85
  %87 = load i32, ptr %86, align 4, !tbaa !5
  %88 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i32 noundef %87)
  br label %89

89:                                               ; preds = %82
  %90 = load i32, ptr %8, align 4, !tbaa !5
  %91 = add nsw i32 %90, 1
  store i32 %91, ptr %8, align 4, !tbaa !5
  br label %77, !llvm.loop !14

92:                                               ; preds = %81
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #5
  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

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #3

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #4

; 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

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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { nobuiltin allocsize(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 #5 = { nounwind }
attributes #6 = { builtin allocsize(0) }

!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 = !{!"any pointer", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !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 [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #4
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %6 = load i32, ptr %1, align 4, !tbaa !5
  %7 = add nsw i32 %6, 1
  %8 = sext i32 %7 to i64
  %9 = icmp slt i32 %6, -1
  %10 = shl nsw i64 %8, 2
  %11 = select i1 %9, i64 -1, i64 %10
  %12 = call noalias noundef nonnull ptr @_Znam(i64 noundef %11) #5
  %.not16 = icmp slt i32 %6, 1
  br i1 %.not16, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %0
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  store i32 0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #4
  store i32 0, ptr %4, align 4, !tbaa !5
  %invariant.gep = getelementptr i8, ptr %12, i64 -4
  %14 = load i32, ptr %2, align 4, !tbaa !5
  %15 = add nsw i32 %14, -1
  store i32 %15, ptr %2, align 4, !tbaa !5
  %.not1418 = icmp eq i32 %14, 0
  br i1 %.not1418, label %._crit_edge..preheader_crit_edge, label %.lr.ph20

._crit_edge..preheader_crit_edge:                 ; preds = %._crit_edge
  %.pre = load i32, ptr %1, align 4, !tbaa !5
  br label %.preheader

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 1, %0 ]
  %16 = getelementptr inbounds i32, ptr %12, i64 %indvars.iv
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %16)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %18 = load i32, ptr %1, align 4, !tbaa !5
  %19 = sext i32 %18 to i64
  %.not.not = icmp slt i64 %indvars.iv, %19
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !9

.preheader:                                       ; preds = %._crit_edge29, %._crit_edge..preheader_crit_edge
  %20 = phi i32 [ %.pre, %._crit_edge..preheader_crit_edge ], [ %31, %._crit_edge29 ]
  %.not1521 = icmp slt i32 %20, 1
  br i1 %.not1521, label %._crit_edge24, label %.lr.ph23

.lr.ph20:                                         ; preds = %._crit_edge, %._crit_edge29
  %21 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %3, ptr noundef nonnull %4)
  %22 = load i32, ptr %3, align 4, !tbaa !5
  %23 = icmp sgt i32 %22, 1
  br i1 %23, label %24, label %30

24:                                               ; preds = %.lr.ph20
  %25 = load i32, ptr %4, align 4, !tbaa !5
  %26 = add nsw i32 %25, -1
  %27 = zext nneg i32 %22 to i64
  %gep = getelementptr i32, ptr %invariant.gep, i64 %27
  %28 = load i32, ptr %gep, align 4, !tbaa !5
  %29 = add nsw i32 %26, %28
  store i32 %29, ptr %gep, align 4, !tbaa !5
  br label %30

30:                                               ; preds = %24, %.lr.ph20
  %31 = load i32, ptr %1, align 4, !tbaa !5
  %32 = icmp slt i32 %22, %31
  %33 = sext i32 %22 to i64
  br i1 %32, label %34, label %._crit_edge29

34:                                               ; preds = %30
  %35 = getelementptr inbounds i32, ptr %12, i64 %33
  %36 = load i32, ptr %35, align 4, !tbaa !5
  %37 = load i32, ptr %4, align 4, !tbaa !5
  %38 = sub i32 %36, %37
  %39 = getelementptr i8, ptr %35, i64 4
  %40 = load i32, ptr %39, align 4, !tbaa !5
  %41 = add nsw i32 %38, %40
  store i32 %41, ptr %39, align 4, !tbaa !5
  br label %._crit_edge29

._crit_edge29:                                    ; preds = %30, %34
  %42 = getelementptr inbounds i32, ptr %12, i64 %33
  store i32 0, ptr %42, align 4, !tbaa !5
  %43 = load i32, ptr %2, align 4, !tbaa !5
  %44 = add nsw i32 %43, -1
  store i32 %44, ptr %2, align 4, !tbaa !5
  %.not14 = icmp eq i32 %43, 0
  br i1 %.not14, label %.preheader, label %.lr.ph20, !llvm.loop !11

._crit_edge24:                                    ; preds = %.lr.ph23, %.preheader
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #4
  ret i32 0

.lr.ph23:                                         ; preds = %.preheader, %.lr.ph23
  %indvars.iv26 = phi i64 [ %indvars.iv.next27, %.lr.ph23 ], [ 1, %.preheader ]
  %45 = getelementptr inbounds i32, ptr %12, i64 %indvars.iv26
  %46 = load i32, ptr %45, align 4, !tbaa !5
  %47 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i32 noundef %46)
  %indvars.iv.next27 = add nuw nsw i64 %indvars.iv26, 1
  %48 = load i32, ptr %1, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %.not15.not = icmp slt i64 %indvars.iv26, %49
  br i1 %.not15.not, label %.lr.ph23, label %._crit_edge24, !llvm.loop !12
}

; 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: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #3

; 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

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 = { 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 = { nobuiltin allocsize(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 #4 = { nounwind }
attributes #5 = { builtin allocsize(0) }

!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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}


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