; LLVM IR from DionysiosB/CodeForces :: 1872D-PlusMinusPermutation (main)

; 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 [15 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_Z3gcdxx(i64 noundef, i64 noundef) #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #1 {
  %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 i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #4
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %12

12:                                               ; preds = %16, %0
  %13 = load i64, ptr %2, align 8, !tbaa !5
  %14 = add nsw i64 %13, -1
  store i64 %14, ptr %2, align 8, !tbaa !5
  %15 = icmp ne i64 %13, 0
  br i1 %15, label %16, label %70

16:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %17 = 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 8, ptr %6) #4
  %18 = load i64, ptr %4, align 8, !tbaa !9
  %19 = load i64, ptr %4, align 8, !tbaa !9
  %20 = load i64, ptr %5, align 8, !tbaa !9
  %21 = call noundef i64 @_Z3gcdxx(i64 noundef %19, i64 noundef %20)
  %22 = sdiv i64 %18, %21
  %23 = load i64, ptr %5, align 8, !tbaa !9
  %24 = mul nsw i64 %22, %23
  store i64 %24, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %25 = load i64, ptr %3, align 8, !tbaa !9
  %26 = load i64, ptr %6, align 8, !tbaa !9
  %27 = sdiv i64 %25, %26
  %28 = load i64, ptr %6, align 8, !tbaa !9
  %29 = load i64, ptr %4, align 8, !tbaa !9
  %30 = sdiv i64 %28, %29
  %31 = sub nsw i64 %30, 1
  %32 = mul nsw i64 %27, %31
  %33 = load i64, ptr %3, align 8, !tbaa !9
  %34 = load i64, ptr %6, align 8, !tbaa !9
  %35 = srem i64 %33, %34
  %36 = load i64, ptr %4, align 8, !tbaa !9
  %37 = sdiv i64 %35, %36
  %38 = add nsw i64 %32, %37
  store i64 %38, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %39 = load i64, ptr %3, align 8, !tbaa !9
  %40 = load i64, ptr %6, align 8, !tbaa !9
  %41 = sdiv i64 %39, %40
  %42 = load i64, ptr %6, align 8, !tbaa !9
  %43 = load i64, ptr %5, align 8, !tbaa !9
  %44 = sdiv i64 %42, %43
  %45 = sub nsw i64 %44, 1
  %46 = mul nsw i64 %41, %45
  %47 = load i64, ptr %3, align 8, !tbaa !9
  %48 = load i64, ptr %6, align 8, !tbaa !9
  %49 = srem i64 %47, %48
  %50 = load i64, ptr %5, align 8, !tbaa !9
  %51 = sdiv i64 %49, %50
  %52 = add nsw i64 %46, %51
  store i64 %52, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %53 = load i64, ptr %7, align 8, !tbaa !9
  %54 = load i64, ptr %3, align 8, !tbaa !9
  %55 = mul nsw i64 2, %54
  %56 = load i64, ptr %7, align 8, !tbaa !9
  %57 = sub nsw i64 %55, %56
  %58 = add nsw i64 %57, 1
  %59 = mul nsw i64 %53, %58
  %60 = sdiv i64 %59, 2
  store i64 %60, ptr %9, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %61 = load i64, ptr %8, align 8, !tbaa !9
  %62 = load i64, ptr %8, align 8, !tbaa !9
  %63 = add nsw i64 %62, 1
  %64 = mul nsw i64 %61, %63
  %65 = sdiv i64 %64, 2
  store i64 %65, ptr %10, align 8, !tbaa !9
  %66 = load i64, ptr %9, align 8, !tbaa !9
  %67 = load i64, ptr %10, align 8, !tbaa !9
  %68 = sub nsw i64 %66, %67
  %69 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %68)
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  br label %12, !llvm.loop !11

70:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #4
  %71 = load i32, ptr %1, align 4
  ret i32 %71
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

declare i32 @__isoc99_scanf(ptr noundef, ...) #3

declare i32 @printf(ptr noundef, ...) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

attributes #0 = { mustprogress 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 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { "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 }

!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 = !{!"long long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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 [15 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_Z3gcdxx(i64 noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #1 {
  %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) #4
  %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
  %.not14 = icmp eq i64 %6, 0
  br i1 %.not14, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0, %.lr.ph
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %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 %3, align 8, !tbaa !9
  %10 = load i64, ptr %4, align 8, !tbaa !9
  %11 = call noundef i64 @_Z3gcdxx(i64 noundef %9, i64 noundef %10)
  %12 = sdiv i64 %9, %11
  %13 = load i64, ptr %4, align 8, !tbaa !9
  %14 = mul nsw i64 %13, %12
  %15 = load i64, ptr %2, align 8, !tbaa !9
  %16 = sdiv i64 %15, %14
  %17 = load i64, ptr %3, align 8, !tbaa !9
  %18 = sdiv i64 %14, %17
  %19 = add nsw i64 %18, -1
  %20 = mul nsw i64 %19, %16
  %21 = srem i64 %15, %14
  %22 = sdiv i64 %21, %17
  %23 = add nsw i64 %20, %22
  %24 = add nsw i64 %12, -1
  %25 = mul nsw i64 %16, %24
  %26 = sdiv i64 %21, %13
  %27 = add nsw i64 %26, %25
  %28 = shl nsw i64 %15, 1
  %29 = or disjoint i64 %28, 1
  %30 = sub i64 %29, %23
  %31 = mul nsw i64 %30, %23
  %32 = sdiv i64 %31, 2
  %33 = add nsw i64 %27, 1
  %34 = mul nsw i64 %33, %27
  %.neg = sdiv i64 %34, -2
  %35 = add nsw i64 %.neg, %32
  %36 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %35)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  %37 = load i64, ptr %1, align 8, !tbaa !5
  %38 = add nsw i64 %37, -1
  store i64 %38, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %37, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !11

._crit_edge:                                      ; preds = %.lr.ph, %0
  call void @llvm.lifetime.end.p0(i64 8, 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) #2

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) 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) #2

attributes #0 = { mustprogress 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 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 #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #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 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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