; LLVM IR from tangjz/acm-icpc :: codeforces/gym (101081D)

; 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"

@t = external dso_local global i32, align 4
@r1 = external dso_local global i32, align 4
@x1 = external dso_local global i32, align 4
@y1 = external dso_local global i32, align 4
@r2 = external dso_local global i32, align 4
@x2 = external dso_local global i32, align 4
@y2 = external dso_local global i32, align 4
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %2 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef @t)
  br label %3

3:                                                ; preds = %38, %0
  %4 = load i32, ptr @t, align 4, !tbaa !5
  %5 = add nsw i32 %4, -1
  store i32 %5, ptr @t, align 4, !tbaa !5
  %6 = icmp ne i32 %4, 0
  br i1 %6, label %7, label %42

7:                                                ; preds = %3
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef @r1, ptr noundef @x1, ptr noundef @y1, ptr noundef @r2, ptr noundef @x2, ptr noundef @y2)
  %9 = load i32, ptr @r1, align 4, !tbaa !5
  %10 = load i32, ptr @r2, align 4, !tbaa !5
  %11 = icmp sge i32 %9, %10
  br i1 %11, label %12, label %37

12:                                               ; preds = %7
  %13 = load i32, ptr @x1, align 4, !tbaa !5
  %14 = load i32, ptr @x2, align 4, !tbaa !5
  %15 = sub nsw i32 %13, %14
  %16 = load i32, ptr @x1, align 4, !tbaa !5
  %17 = load i32, ptr @x2, align 4, !tbaa !5
  %18 = sub nsw i32 %16, %17
  %19 = mul nsw i32 %15, %18
  %20 = load i32, ptr @y1, align 4, !tbaa !5
  %21 = load i32, ptr @y2, align 4, !tbaa !5
  %22 = sub nsw i32 %20, %21
  %23 = load i32, ptr @y1, align 4, !tbaa !5
  %24 = load i32, ptr @y2, align 4, !tbaa !5
  %25 = sub nsw i32 %23, %24
  %26 = mul nsw i32 %22, %25
  %27 = add nsw i32 %19, %26
  %28 = load i32, ptr @r1, align 4, !tbaa !5
  %29 = load i32, ptr @r2, align 4, !tbaa !5
  %30 = sub nsw i32 %28, %29
  %31 = load i32, ptr @r1, align 4, !tbaa !5
  %32 = load i32, ptr @r2, align 4, !tbaa !5
  %33 = sub nsw i32 %31, %32
  %34 = mul nsw i32 %30, %33
  %35 = icmp sle i32 %27, %34
  br i1 %35, label %36, label %37

36:                                               ; preds = %12
  br label %38

37:                                               ; preds = %12, %7
  br label %38

38:                                               ; preds = %37, %36
  %39 = phi ptr [ @.str.2, %36 ], [ @.str.3, %37 ]
  %40 = getelementptr inbounds [5 x i8], ptr %39, i64 0, i64 0
  %41 = call i32 @puts(ptr noundef %40)
  br label %3, !llvm.loop !9

42:                                               ; preds = %3
  ret i32 0
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #1

declare i32 @puts(ptr noundef) #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 = { "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" }

!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"}


; 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"

@t = external dso_local global i32, align 4
@r1 = external dso_local global i32, align 4
@x1 = external dso_local global i32, align 4
@y1 = external dso_local global i32, align 4
@r2 = external dso_local global i32, align 4
@x2 = external dso_local global i32, align 4
@y2 = external dso_local global i32, align 4
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [13 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull @t)
  %2 = load i32, ptr @t, align 4, !tbaa !5
  %3 = add nsw i32 %2, -1
  store i32 %3, ptr @t, align 4, !tbaa !5
  %.not4 = icmp eq i32 %2, 0
  br i1 %.not4, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0, %20
  %4 = tail call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull @r1, ptr noundef nonnull @x1, ptr noundef nonnull @y1, ptr noundef nonnull @r2, ptr noundef nonnull @x2, ptr noundef nonnull @y2)
  %5 = load i32, ptr @r1, align 4, !tbaa !5
  %6 = load i32, ptr @r2, align 4, !tbaa !5
  %.not2 = icmp slt i32 %5, %6
  br i1 %.not2, label %19, label %7

7:                                                ; preds = %.lr.ph
  %8 = load i32, ptr @x1, align 4, !tbaa !5
  %9 = load i32, ptr @x2, align 4, !tbaa !5
  %10 = sub nsw i32 %8, %9
  %11 = mul nsw i32 %10, %10
  %12 = load i32, ptr @y1, align 4, !tbaa !5
  %13 = load i32, ptr @y2, align 4, !tbaa !5
  %14 = sub nsw i32 %12, %13
  %15 = mul nsw i32 %14, %14
  %16 = add nuw nsw i32 %15, %11
  %17 = sub nsw i32 %5, %6
  %18 = mul nsw i32 %17, %17
  %.not3 = icmp ugt i32 %16, %18
  br i1 %.not3, label %19, label %20

19:                                               ; preds = %7, %.lr.ph
  br label %20

20:                                               ; preds = %7, %19
  %21 = phi ptr [ @.str.3, %19 ], [ @.str.2, %7 ]
  %22 = tail call i32 @puts(ptr noundef nonnull dereferenceable(1) %21)
  %23 = load i32, ptr @t, align 4, !tbaa !5
  %24 = add nsw i32 %23, -1
  store i32 %24, ptr @t, align 4, !tbaa !5
  %.not = icmp eq i32 %23, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

._crit_edge:                                      ; preds = %20, %0
  ret i32 0
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noundef i32 @puts(ptr nocapture noundef readonly) local_unnamed_addr #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 = { 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" }

!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"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass