; LLVM IR from DionysiosB/CodeForces :: 1600-1699 (1622A-ConstructARectangle)

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

8:                                                ; preds = %57, %0
  %9 = load i64, ptr %2, align 8, !tbaa !5
  %10 = add nsw i64 %9, -1
  store i64 %10, ptr %2, align 8, !tbaa !5
  %11 = icmp ne i64 %9, 0
  br i1 %11, label %12, label %63

12:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %3, ptr noundef %4, ptr noundef %5)
  call void @llvm.lifetime.start.p0(i64 1, ptr %6) #3
  store i8 0, ptr %6, align 1, !tbaa !9
  %14 = load i64, ptr %3, align 8, !tbaa !5
  %15 = load i64, ptr %4, align 8, !tbaa !5
  %16 = load i64, ptr %5, align 8, !tbaa !5
  %17 = add nsw i64 %15, %16
  %18 = icmp eq i64 %14, %17
  br i1 %18, label %31, label %19

19:                                               ; preds = %12
  %20 = load i64, ptr %4, align 8, !tbaa !5
  %21 = load i64, ptr %3, align 8, !tbaa !5
  %22 = load i64, ptr %5, align 8, !tbaa !5
  %23 = add nsw i64 %21, %22
  %24 = icmp eq i64 %20, %23
  br i1 %24, label %31, label %25

25:                                               ; preds = %19
  %26 = load i64, ptr %5, align 8, !tbaa !5
  %27 = load i64, ptr %3, align 8, !tbaa !5
  %28 = load i64, ptr %4, align 8, !tbaa !5
  %29 = add nsw i64 %27, %28
  %30 = icmp eq i64 %26, %29
  br i1 %30, label %31, label %32

31:                                               ; preds = %25, %19, %12
  store i8 1, ptr %6, align 1, !tbaa !9
  br label %32

32:                                               ; preds = %31, %25
  %33 = load i64, ptr %3, align 8, !tbaa !5
  %34 = srem i64 %33, 2
  %35 = icmp eq i64 %34, 0
  br i1 %35, label %36, label %40

36:                                               ; preds = %32
  %37 = load i64, ptr %4, align 8, !tbaa !5
  %38 = load i64, ptr %5, align 8, !tbaa !5
  %39 = icmp eq i64 %37, %38
  br i1 %39, label %56, label %40

40:                                               ; preds = %36, %32
  %41 = load i64, ptr %4, align 8, !tbaa !5
  %42 = srem i64 %41, 2
  %43 = icmp eq i64 %42, 0
  br i1 %43, label %44, label %48

44:                                               ; preds = %40
  %45 = load i64, ptr %3, align 8, !tbaa !5
  %46 = load i64, ptr %5, align 8, !tbaa !5
  %47 = icmp eq i64 %45, %46
  br i1 %47, label %56, label %48

48:                                               ; preds = %44, %40
  %49 = load i64, ptr %5, align 8, !tbaa !5
  %50 = srem i64 %49, 2
  %51 = icmp eq i64 %50, 0
  br i1 %51, label %52, label %57

52:                                               ; preds = %48
  %53 = load i64, ptr %3, align 8, !tbaa !5
  %54 = load i64, ptr %4, align 8, !tbaa !5
  %55 = icmp eq i64 %53, %54
  br i1 %55, label %56, label %57

56:                                               ; preds = %52, %44, %36
  store i8 1, ptr %6, align 1, !tbaa !9
  br label %57

57:                                               ; preds = %56, %52, %48
  %58 = load i8, ptr %6, align 1, !tbaa !9, !range !11, !noundef !12
  %59 = trunc i8 %58 to i1
  %60 = zext i1 %59 to i64
  %61 = select i1 %59, ptr @.str.2, ptr @.str.3
  %62 = call i32 @puts(ptr noundef %61)
  call void @llvm.lifetime.end.p0(i64 1, ptr %6) #3
  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 8, ptr %3) #3
  br label %8, !llvm.loop !13

63:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %64 = load i32, ptr %1, align 4
  ret i32 %64
}

; 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 @puts(ptr noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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 = !{!10, !10, i64 0}
!10 = !{!"bool", !7, i64 0}
!11 = !{i8 0, i8 2}
!12 = !{}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; 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 [12 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = 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
  %4 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %6 = load i64, ptr %1, align 8, !tbaa !5
  %7 = add nsw i64 %6, -1
  store i64 %7, ptr %1, align 8, !tbaa !5
  %.not10 = icmp eq i64 %6, 0
  br i1 %.not10, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0, %30
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %2, ptr noundef nonnull %3, ptr noundef nonnull %4)
  %9 = load i64, ptr %2, align 8, !tbaa !5
  %10 = load i64, ptr %3, align 8, !tbaa !5
  %11 = load i64, ptr %4, align 8, !tbaa !5
  %12 = add nsw i64 %11, %10
  %13 = icmp eq i64 %9, %12
  %14 = add nsw i64 %11, %9
  %15 = icmp eq i64 %10, %14
  %or.cond = select i1 %13, i1 true, i1 %15
  %16 = add nsw i64 %10, %9
  %17 = icmp eq i64 %11, %16
  %or.cond6 = select i1 %or.cond, i1 true, i1 %17
  %18 = and i64 %9, 1
  %19 = icmp eq i64 %18, 0
  %20 = icmp eq i64 %10, %11
  %or.cond7 = select i1 %19, i1 %20, i1 false
  br i1 %or.cond7, label %.thread, label %21

21:                                               ; preds = %.lr.ph
  %22 = and i64 %10, 1
  %23 = icmp eq i64 %22, 0
  %24 = icmp eq i64 %9, %11
  %or.cond8 = select i1 %23, i1 %24, i1 false
  br i1 %or.cond8, label %.thread, label %25

25:                                               ; preds = %21
  %26 = and i64 %11, 1
  %27 = icmp eq i64 %26, 0
  %28 = icmp eq i64 %9, %10
  %or.cond9 = select i1 %27, i1 %28, i1 false
  br i1 %or.cond9, label %.thread, label %29

29:                                               ; preds = %25
  %cond.fr = freeze i1 %or.cond6
  br i1 %cond.fr, label %.thread, label %30

.thread:                                          ; preds = %25, %21, %.lr.ph, %29
  br label %30

30:                                               ; preds = %29, %.thread
  %31 = phi ptr [ @.str.2, %.thread ], [ @.str.3, %29 ]
  %32 = call i32 @puts(ptr noundef nonnull dereferenceable(1) %31)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  %33 = load i64, ptr %1, align 8, !tbaa !5
  %34 = add nsw i64 %33, -1
  store i64 %34, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %33, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %30, %0
  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: nofree nounwind
declare noundef i32 @puts(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

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,ReassociatePass,SROAPass,SimplifyCFGPass