; LLVM IR from hanzohasashi33/Competetive_programming :: CodeChef/Contest (Constant_series)

; 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 [4 x i8], align 1

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

11:                                               ; preds = %72, %0
  %12 = load i32, ptr %2, align 4, !tbaa !5
  %13 = icmp sgt i32 %12, 0
  br i1 %13, label %14, label %78

14:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  %16 = load i32, ptr %3, align 4, !tbaa !5
  %17 = zext i32 %16 to i64
  %18 = call ptr @llvm.stacksave.p0()
  store ptr %18, ptr %4, align 8
  %19 = alloca i32, i64 %17, align 16
  store i64 %17, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 0, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  store i32 0, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  store i32 0, ptr %8, align 4, !tbaa !5
  br label %20

20:                                               ; preds = %30, %14
  %21 = load i32, ptr %8, align 4, !tbaa !5
  %22 = load i32, ptr %3, align 4, !tbaa !5
  %23 = icmp slt i32 %21, %22
  br i1 %23, label %25, label %24

24:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  br label %33

25:                                               ; preds = %20
  %26 = load i32, ptr %8, align 4, !tbaa !5
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds i32, ptr %19, i64 %27
  %29 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %28)
  br label %30

30:                                               ; preds = %25
  %31 = load i32, ptr %8, align 4, !tbaa !5
  %32 = add nsw i32 %31, 1
  store i32 %32, ptr %8, align 4, !tbaa !5
  br label %20, !llvm.loop !9

33:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  store i32 0, ptr %9, align 4, !tbaa !5
  store i32 0, ptr %9, align 4, !tbaa !5
  br label %34

34:                                               ; preds = %69, %33
  %35 = load i32, ptr %9, align 4, !tbaa !5
  %36 = load i32, ptr %3, align 4, !tbaa !5
  %37 = icmp slt i32 %35, %36
  br i1 %37, label %38, label %72

38:                                               ; preds = %34
  store i32 0, ptr %6, align 4, !tbaa !5
  br label %39

39:                                               ; preds = %51, %38
  %40 = load i32, ptr %9, align 4, !tbaa !5
  %41 = add nsw i32 %40, 1
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds i32, ptr %19, i64 %42
  %44 = load i32, ptr %43, align 4, !tbaa !5
  %45 = load i32, ptr %9, align 4, !tbaa !5
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds i32, ptr %19, i64 %46
  %48 = load i32, ptr %47, align 4, !tbaa !5
  %49 = sub nsw i32 %44, %48
  %50 = icmp eq i32 %49, 1
  br i1 %50, label %51, label %56

51:                                               ; preds = %39
  %52 = load i32, ptr %9, align 4, !tbaa !5
  %53 = add nsw i32 %52, 1
  store i32 %53, ptr %9, align 4, !tbaa !5
  store i32 1, ptr %6, align 4, !tbaa !5
  %54 = load i32, ptr %6, align 4, !tbaa !5
  %55 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %54)
  br label %39, !llvm.loop !11

56:                                               ; preds = %39
  %57 = load i32, ptr %6, align 4, !tbaa !5
  %58 = icmp eq i32 %57, 1
  br i1 %58, label %59, label %62

59:                                               ; preds = %56
  %60 = load i32, ptr %7, align 4, !tbaa !5
  %61 = add nsw i32 %60, 1
  store i32 %61, ptr %7, align 4, !tbaa !5
  br label %62

62:                                               ; preds = %59, %56
  %63 = load i32, ptr %6, align 4, !tbaa !5
  %64 = icmp eq i32 %63, 0
  br i1 %64, label %65, label %68

65:                                               ; preds = %62
  %66 = load i32, ptr %9, align 4, !tbaa !5
  %67 = add nsw i32 %66, 1
  store i32 %67, ptr %9, align 4, !tbaa !5
  br label %68

68:                                               ; preds = %65, %62
  br label %69

69:                                               ; preds = %68
  %70 = load i32, ptr %9, align 4, !tbaa !5
  %71 = add nsw i32 %70, 0
  store i32 %71, ptr %9, align 4, !tbaa !5
  br label %34, !llvm.loop !12

72:                                               ; preds = %34
  %73 = load i32, ptr %7, align 4, !tbaa !5
  %74 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %73)
  %75 = load i32, ptr %2, align 4, !tbaa !5
  %76 = sub nsw i32 %75, 1
  store i32 %76, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %77 = load ptr, ptr %4, align 8
  call void @llvm.stackrestore.p0(ptr %77)
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  br label %11, !llvm.loop !13

78:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #4
  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 willreturn
declare ptr @llvm.stacksave.p0() #3

; 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

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #3

attributes #0 = { 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 = { 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 willreturn }
attributes #4 = { 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/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}
!13 = distinct !{!13, !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 [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #4
  %3 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %4 = load i32, ptr %1, align 4, !tbaa !5
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph30, label %._crit_edge31

.lr.ph30:                                         ; preds = %0, %._crit_edge28
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  %6 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  %7 = load i32, ptr %2, align 4, !tbaa !5
  %8 = zext i32 %7 to i64
  %9 = call ptr @llvm.stacksave.p0()
  %10 = alloca i32, i64 %8, align 16
  %11 = load i32, ptr %2, align 4, !tbaa !5
  %12 = icmp sgt i32 %11, 0
  br i1 %12, label %.lr.ph, label %._crit_edge28

.preheader18:                                     ; preds = %.lr.ph
  %13 = icmp sgt i32 %16, 0
  br i1 %13, label %.preheader, label %._crit_edge28

.lr.ph:                                           ; preds = %.lr.ph30, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.lr.ph30 ]
  %14 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %14)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = icmp slt i64 %indvars.iv.next, %17
  br i1 %18, label %.lr.ph, label %.preheader18, !llvm.loop !9

.preheader:                                       ; preds = %.preheader18, %._crit_edge
  %19 = phi i32 [ %37, %._crit_edge ], [ %16, %.preheader18 ]
  %.027 = phi i32 [ %.2, %._crit_edge ], [ 0, %.preheader18 ]
  %.01526 = phi i32 [ %spec.select, %._crit_edge ], [ 0, %.preheader18 ]
  %20 = add nsw i32 %.027, 1
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds i32, ptr %10, i64 %21
  %23 = load i32, ptr %22, align 4, !tbaa !5
  %24 = sext i32 %.027 to i64
  %25 = getelementptr inbounds i32, ptr %10, i64 %24
  %26 = load i32, ptr %25, align 4, !tbaa !5
  %27 = sub nsw i32 %23, %26
  %.not = icmp eq i32 %27, 1
  br i1 %.not, label %.lr.ph22.preheader, label %._crit_edge

.lr.ph22.preheader:                               ; preds = %.preheader
  %28 = add nsw i64 %24, 1
  br label %.lr.ph22

.lr.ph22:                                         ; preds = %.lr.ph22.preheader, %.lr.ph22
  %indvars.iv33 = phi i64 [ %28, %.lr.ph22.preheader ], [ %indvars.iv.next34, %.lr.ph22 ]
  %29 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef 1)
  %indvars.iv.next34 = add nsw i64 %indvars.iv33, 1
  %30 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv.next34
  %31 = load i32, ptr %30, align 4, !tbaa !5
  %32 = getelementptr inbounds i32, ptr %10, i64 %indvars.iv33
  %33 = load i32, ptr %32, align 4, !tbaa !5
  %34 = sub nsw i32 %31, %33
  %35 = icmp eq i32 %34, 1
  br i1 %35, label %.lr.ph22, label %._crit_edge.loopexit, !llvm.loop !11

._crit_edge.loopexit:                             ; preds = %.lr.ph22
  %36 = trunc nsw i64 %indvars.iv33 to i32
  %.pre = load i32, ptr %2, align 4, !tbaa !5
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %.preheader
  %37 = phi i32 [ %19, %.preheader ], [ %.pre, %._crit_edge.loopexit ]
  %.2 = phi i32 [ %20, %.preheader ], [ %36, %._crit_edge.loopexit ]
  %.lcssa20 = phi i32 [ 0, %.preheader ], [ 1, %._crit_edge.loopexit ]
  %spec.select = add nuw nsw i32 %.lcssa20, %.01526
  %38 = icmp slt i32 %.2, %37
  br i1 %38, label %.preheader, label %._crit_edge28, !llvm.loop !12

._crit_edge28:                                    ; preds = %._crit_edge, %.lr.ph30, %.preheader18
  %.015.lcssa = phi i32 [ 0, %.preheader18 ], [ 0, %.lr.ph30 ], [ %spec.select, %._crit_edge ]
  %39 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %.015.lcssa)
  %40 = load i32, ptr %1, align 4, !tbaa !5
  %41 = add nsw i32 %40, -1
  store i32 %41, ptr %1, align 4, !tbaa !5
  call void @llvm.stackrestore.p0(ptr %9)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  %42 = load i32, ptr %1, align 4, !tbaa !5
  %43 = icmp sgt i32 %42, 0
  br i1 %43, label %.lr.ph30, label %._crit_edge31, !llvm.loop !13

._crit_edge31:                                    ; preds = %._crit_edge28, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #4
  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
declare ptr @llvm.stacksave.p0() #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

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #3

attributes #0 = { nofree 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 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #4 = { 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/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}
!13 = distinct !{!13, !10}


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