; LLVM IR from DionysiosB/CodeForces :: 1946B-MaximumSum (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 [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 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 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) #3
  store i64 1000000007, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  br label %12

12:                                               ; preds = %64, %0
  %13 = load i64, ptr %3, align 8, !tbaa !5
  %14 = add nsw i64 %13, -1
  store i64 %14, ptr %3, align 8, !tbaa !5
  %15 = icmp ne i64 %13, 0
  br i1 %15, label %16, label %71

16:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %4, ptr noundef %5)
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 0, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  store i64 0, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  store i64 0, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  store i64 0, ptr %9, align 8, !tbaa !9
  br label %18

18:                                               ; preds = %44, %16
  %19 = load i64, ptr %9, align 8, !tbaa !9
  %20 = load i64, ptr %4, align 8, !tbaa !5
  %21 = icmp slt i64 %19, %20
  br i1 %21, label %23, label %22

22:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %47

23:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %24 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %10)
  %25 = load i64, ptr %10, align 8, !tbaa !5
  %26 = load i64, ptr %8, align 8, !tbaa !5
  %27 = add nsw i64 %26, %25
  store i64 %27, ptr %8, align 8, !tbaa !5
  %28 = load i64, ptr %10, align 8, !tbaa !5
  %29 = load i64, ptr %6, align 8, !tbaa !5
  %30 = add nsw i64 %29, %28
  store i64 %30, ptr %6, align 8, !tbaa !5
  %31 = load i64, ptr %6, align 8, !tbaa !5
  %32 = icmp slt i64 %31, 0
  br i1 %32, label %33, label %34

33:                                               ; preds = %23
  store i64 0, ptr %6, align 8, !tbaa !5
  br label %34

34:                                               ; preds = %33, %23
  %35 = load i64, ptr %7, align 8, !tbaa !5
  %36 = load i64, ptr %6, align 8, !tbaa !5
  %37 = icmp sgt i64 %35, %36
  br i1 %37, label %38, label %40

38:                                               ; preds = %34
  %39 = load i64, ptr %7, align 8, !tbaa !5
  br label %42

40:                                               ; preds = %34
  %41 = load i64, ptr %6, align 8, !tbaa !5
  br label %42

42:                                               ; preds = %40, %38
  %43 = phi i64 [ %39, %38 ], [ %41, %40 ]
  store i64 %43, ptr %7, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  br label %44

44:                                               ; preds = %42
  %45 = load i64, ptr %9, align 8, !tbaa !9
  %46 = add nsw i64 %45, 1
  store i64 %46, ptr %9, align 8, !tbaa !9
  br label %18, !llvm.loop !11

47:                                               ; preds = %22
  %48 = load i64, ptr %7, align 8, !tbaa !5
  %49 = load i64, ptr %8, align 8, !tbaa !5
  %50 = sub nsw i64 %49, %48
  store i64 %50, ptr %8, align 8, !tbaa !5
  %51 = load i64, ptr %8, align 8, !tbaa !5
  %52 = srem i64 %51, 1000000007
  %53 = add nsw i64 %52, 1000000007
  %54 = srem i64 %53, 1000000007
  store i64 %54, ptr %8, align 8, !tbaa !5
  br label %55

55:                                               ; preds = %59, %47
  %56 = load i64, ptr %5, align 8, !tbaa !5
  %57 = add nsw i64 %56, -1
  store i64 %57, ptr %5, align 8, !tbaa !5
  %58 = icmp ne i64 %56, 0
  br i1 %58, label %59, label %64

59:                                               ; preds = %55
  %60 = load i64, ptr %7, align 8, !tbaa !5
  %61 = mul nsw i64 %60, 2
  store i64 %61, ptr %7, align 8, !tbaa !5
  %62 = load i64, ptr %7, align 8, !tbaa !5
  %63 = srem i64 %62, 1000000007
  store i64 %63, ptr %7, align 8, !tbaa !5
  br label %55, !llvm.loop !13

64:                                               ; preds = %55
  %65 = load i64, ptr %8, align 8, !tbaa !5
  %66 = load i64, ptr %7, align 8, !tbaa !5
  %67 = add nsw i64 %65, %66
  %68 = add nsw i64 %67, 1000000007
  %69 = srem i64 %68, 1000000007
  %70 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %69)
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, 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
  br label %12, !llvm.loop !14

71:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %72 = load i32, ptr %1, align 4
  ret i32 %72
}

; 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 memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare i32 @printf(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 long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}


; 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 [10 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 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) #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
  %.not34 = icmp eq i64 %6, 0
  br i1 %.not34, label %._crit_edge37, label %.lr.ph36

.lr.ph36:                                         ; preds = %0, %._crit_edge31
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %2, ptr noundef nonnull %3)
  %9 = load i64, ptr %2, align 8, !tbaa !5
  %10 = icmp sgt i64 %9, 0
  br i1 %10, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.lr.ph36
  %.018.lcssa = phi i64 [ 0, %.lr.ph36 ], [ %23, %.lr.ph ]
  %.017.lcssa = phi i64 [ 0, %.lr.ph36 ], [ %21, %.lr.ph ]
  %11 = sub nsw i64 %.017.lcssa, %.018.lcssa
  %.fr21 = freeze i64 %11
  %12 = srem i64 %.fr21, 1000000007
  %13 = add nsw i64 %12, 1000000007
  %.cmp = icmp ugt i64 %12, -1000000008
  %14 = select i1 %.cmp, i64 %13, i64 %12
  %.pr = load i64, ptr %3, align 8, !tbaa !5
  %.not2027 = icmp eq i64 %.pr, 0
  br i1 %.not2027, label %._crit_edge31, label %.lr.ph30.preheader

.lr.ph30.preheader:                               ; preds = %._crit_edge
  %xtraiter = and i64 %.pr, 3
  %lcmp.mod.not = icmp eq i64 %xtraiter, 0
  br i1 %lcmp.mod.not, label %.lr.ph30.prol.loopexit, label %.lr.ph30.prol

.lr.ph30.prol:                                    ; preds = %.lr.ph30.preheader, %.lr.ph30.prol
  %.in.prol = phi i64 [ %15, %.lr.ph30.prol ], [ %.pr, %.lr.ph30.preheader ]
  %.128.prol = phi i64 [ %17, %.lr.ph30.prol ], [ %.018.lcssa, %.lr.ph30.preheader ]
  %prol.iter = phi i64 [ %prol.iter.next, %.lr.ph30.prol ], [ 0, %.lr.ph30.preheader ]
  %15 = add nsw i64 %.in.prol, -1
  %16 = shl nsw i64 %.128.prol, 1
  %17 = srem i64 %16, 1000000007
  %prol.iter.next = add i64 %prol.iter, 1
  %prol.iter.cmp.not = icmp eq i64 %prol.iter.next, %xtraiter
  br i1 %prol.iter.cmp.not, label %.lr.ph30.prol.loopexit, label %.lr.ph30.prol, !llvm.loop !9

.lr.ph30.prol.loopexit:                           ; preds = %.lr.ph30.prol, %.lr.ph30.preheader
  %.lcssa47.unr = phi i64 [ poison, %.lr.ph30.preheader ], [ %17, %.lr.ph30.prol ]
  %.in.unr = phi i64 [ %.pr, %.lr.ph30.preheader ], [ %15, %.lr.ph30.prol ]
  %.128.unr = phi i64 [ %.018.lcssa, %.lr.ph30.preheader ], [ %17, %.lr.ph30.prol ]
  %18 = icmp ult i64 %.pr, 4
  br i1 %18, label %._crit_edge31, label %.lr.ph30

.lr.ph:                                           ; preds = %.lr.ph36, %.lr.ph
  %.025 = phi i64 [ %24, %.lr.ph ], [ 0, %.lr.ph36 ]
  %.01724 = phi i64 [ %21, %.lr.ph ], [ 0, %.lr.ph36 ]
  %.01823 = phi i64 [ %23, %.lr.ph ], [ 0, %.lr.ph36 ]
  %.01922 = phi i64 [ %spec.store.select, %.lr.ph ], [ 0, %.lr.ph36 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %19 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %4)
  %20 = load i64, ptr %4, align 8, !tbaa !5
  %21 = add nsw i64 %20, %.01724
  %22 = add nsw i64 %20, %.01922
  %spec.store.select = call i64 @llvm.smax.i64(i64 %22, i64 0)
  %23 = call i64 @llvm.smax.i64(i64 %.01823, i64 %spec.store.select)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  %24 = add nuw nsw i64 %.025, 1
  %25 = load i64, ptr %2, align 8, !tbaa !5
  %26 = icmp slt i64 %24, %25
  br i1 %26, label %.lr.ph, label %._crit_edge, !llvm.loop !11

.lr.ph30:                                         ; preds = %.lr.ph30.prol.loopexit, %.lr.ph30
  %.in = phi i64 [ %33, %.lr.ph30 ], [ %.in.unr, %.lr.ph30.prol.loopexit ]
  %.128 = phi i64 [ %35, %.lr.ph30 ], [ %.128.unr, %.lr.ph30.prol.loopexit ]
  %27 = shl nsw i64 %.128, 1
  %28 = srem i64 %27, 1000000007
  %29 = shl nsw i64 %28, 1
  %30 = srem i64 %29, 1000000007
  %31 = shl nsw i64 %30, 1
  %32 = srem i64 %31, 1000000007
  %33 = add nsw i64 %.in, -4
  %34 = shl nsw i64 %32, 1
  %35 = srem i64 %34, 1000000007
  %.not20.3 = icmp eq i64 %33, 0
  br i1 %.not20.3, label %._crit_edge31, label %.lr.ph30, !llvm.loop !13

._crit_edge31:                                    ; preds = %.lr.ph30.prol.loopexit, %.lr.ph30, %._crit_edge
  %.1.lcssa = phi i64 [ %.018.lcssa, %._crit_edge ], [ %.lcssa47.unr, %.lr.ph30.prol.loopexit ], [ %35, %.lr.ph30 ]
  store i64 -1, ptr %3, align 8, !tbaa !5
  %36 = add nsw i64 %14, 1000000007
  %37 = add i64 %36, %.1.lcssa
  %38 = srem i64 %37, 1000000007
  %39 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %38)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  %40 = load i64, ptr %1, align 8, !tbaa !5
  %41 = add nsw i64 %40, -1
  store i64 %41, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %40, 0
  br i1 %.not, label %._crit_edge37, label %.lr.ph36, !llvm.loop !14

._crit_edge37:                                    ; preds = %._crit_edge31, %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) #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 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: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.smax.i64(i64, i64) #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 long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.unroll.disable"}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}


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