; LLVM IR from DionysiosB/CodeForces :: 0700-0799 (710C-MagicOddSquare)

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

10:                                               ; preds = %57, %0
  %11 = load i64, ptr %5, align 8, !tbaa !5
  %12 = load i64, ptr %2, align 8, !tbaa !5
  %13 = icmp slt i64 %11, %12
  br i1 %13, label %15, label %14

14:                                               ; preds = %10
  store i32 2, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  br label %60

15:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %16 = load i64, ptr %2, align 8, !tbaa !5
  %17 = sdiv i64 %16, 2
  %18 = load i64, ptr %5, align 8, !tbaa !5
  %19 = sub nsw i64 %17, %18
  store i64 %19, ptr %7, align 8, !tbaa !5
  %20 = load i64, ptr %7, align 8, !tbaa !5
  %21 = icmp slt i64 %20, 0
  br i1 %21, label %22, label %25

22:                                               ; preds = %15
  %23 = load i64, ptr %7, align 8, !tbaa !5
  %24 = sub nsw i64 0, %23
  store i64 %24, ptr %7, align 8, !tbaa !5
  br label %25

25:                                               ; preds = %22, %15
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  store i64 0, ptr %8, align 8, !tbaa !5
  br label %26

26:                                               ; preds = %52, %25
  %27 = load i64, ptr %8, align 8, !tbaa !5
  %28 = load i64, ptr %2, align 8, !tbaa !5
  %29 = icmp slt i64 %27, %28
  br i1 %29, label %31, label %30

30:                                               ; preds = %26
  store i32 5, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %55

31:                                               ; preds = %26
  %32 = load i64, ptr %8, align 8, !tbaa !5
  %33 = load i64, ptr %7, align 8, !tbaa !5
  %34 = icmp slt i64 %32, %33
  br i1 %34, label %41, label %35

35:                                               ; preds = %31
  %36 = load i64, ptr %8, align 8, !tbaa !5
  %37 = load i64, ptr %2, align 8, !tbaa !5
  %38 = load i64, ptr %7, align 8, !tbaa !5
  %39 = sub nsw i64 %37, %38
  %40 = icmp sge i64 %36, %39
  br i1 %40, label %41, label %46

41:                                               ; preds = %35, %31
  %42 = load i64, ptr %4, align 8, !tbaa !5
  %43 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %42)
  %44 = load i64, ptr %4, align 8, !tbaa !5
  %45 = add nsw i64 %44, 2
  store i64 %45, ptr %4, align 8, !tbaa !5
  br label %51

46:                                               ; preds = %35
  %47 = load i64, ptr %3, align 8, !tbaa !5
  %48 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %47)
  %49 = load i64, ptr %3, align 8, !tbaa !5
  %50 = add nsw i64 %49, 2
  store i64 %50, ptr %3, align 8, !tbaa !5
  br label %51

51:                                               ; preds = %46, %41
  br label %52

52:                                               ; preds = %51
  %53 = load i64, ptr %8, align 8, !tbaa !5
  %54 = add nsw i64 %53, 1
  store i64 %54, ptr %8, align 8, !tbaa !5
  br label %26, !llvm.loop !9

55:                                               ; preds = %30
  %56 = call i32 @puts(ptr noundef @.str.2)
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %57

57:                                               ; preds = %55
  %58 = load i64, ptr %5, align 8, !tbaa !5
  %59 = add nsw i64 %58, 1
  store i64 %59, ptr %5, align 8, !tbaa !5
  br label %10, !llvm.loop !11

60:                                               ; preds = %14
  store i32 0, ptr %1, align 4
  store i32 1, ptr %6, align 4
  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
  %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

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

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 = !{!"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}


; 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 [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [1 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) #4
  %2 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %3 = load i64, ptr %1, align 8, !tbaa !5
  %4 = icmp sgt i64 %3, 0
  br i1 %4, label %.lr.ph34, label %._crit_edge35

._crit_edge35:                                    ; preds = %._crit_edge, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #4
  ret i32 0

.lr.ph34:                                         ; preds = %0, %._crit_edge
  %5 = phi i64 [ %11, %._crit_edge ], [ %3, %0 ]
  %.01732 = phi i64 [ %10, %._crit_edge ], [ 0, %0 ]
  %.01831 = phi i64 [ %.1.lcssa, %._crit_edge ], [ 2, %0 ]
  %.01930 = phi i64 [ %.120.lcssa, %._crit_edge ], [ 1, %0 ]
  %6 = sdiv i64 %5, 2
  %7 = sub nsw i64 %6, %.01732
  %spec.select = call i64 @llvm.abs.i64(i64 %7, i1 true)
  %8 = icmp sgt i64 %5, 0
  br i1 %8, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %22, %.lr.ph34
  %.120.lcssa = phi i64 [ %.01930, %.lr.ph34 ], [ %.221, %22 ]
  %.1.lcssa = phi i64 [ %.01831, %.lr.ph34 ], [ %.2, %22 ]
  %9 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  %10 = add nuw nsw i64 %.01732, 1
  %11 = load i64, ptr %1, align 8, !tbaa !5
  %12 = icmp slt i64 %10, %11
  br i1 %12, label %.lr.ph34, label %._crit_edge35, !llvm.loop !9

.lr.ph:                                           ; preds = %.lr.ph34, %22
  %13 = phi i64 [ %24, %22 ], [ %5, %.lr.ph34 ]
  %.028 = phi i64 [ %23, %22 ], [ 0, %.lr.ph34 ]
  %.127 = phi i64 [ %.2, %22 ], [ %.01831, %.lr.ph34 ]
  %.12026 = phi i64 [ %.221, %22 ], [ %.01930, %.lr.ph34 ]
  %14 = icmp uge i64 %.028, %spec.select
  %15 = sub nsw i64 %13, %spec.select
  %.not = icmp slt i64 %.028, %15
  %or.cond = select i1 %14, i1 %.not, i1 false
  br i1 %or.cond, label %19, label %16

16:                                               ; preds = %.lr.ph
  %17 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %.127)
  %18 = add nsw i64 %.127, 2
  br label %22

19:                                               ; preds = %.lr.ph
  %20 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %.12026)
  %21 = add nsw i64 %.12026, 2
  br label %22

22:                                               ; preds = %16, %19
  %.221 = phi i64 [ %.12026, %16 ], [ %21, %19 ]
  %.2 = phi i64 [ %18, %16 ], [ %.127, %19 ]
  %23 = add nuw nsw i64 %.028, 1
  %24 = load i64, ptr %1, align 8, !tbaa !5
  %25 = icmp slt i64 %23, %24
  br i1 %25, label %.lr.ph, label %._crit_edge, !llvm.loop !11
}

; 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

; Function Attrs: nofree nounwind
declare noundef i32 @puts(ptr nocapture noundef readonly) local_unnamed_addr #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.abs.i64(i64, i1 immarg) #3

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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 = !{!"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: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass