; LLVM IR from reyadussalahin/problem-solving :: greedy/basic/codeforces/F1362C (Solution)

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

8:                                                ; preds = %39, %0
  %9 = load i32, ptr %3, align 4, !tbaa !5
  %10 = load i32, ptr %2, align 4, !tbaa !5
  %11 = icmp slt i32 %9, %10
  br i1 %11, label %13, label %12

12:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  br label %42

13:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %14 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %4)
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 62, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 0, ptr %6, align 8, !tbaa !9
  br label %15

15:                                               ; preds = %33, %13
  %16 = load i64, ptr %5, align 8, !tbaa !9
  %17 = icmp sge i64 %16, 0
  br i1 %17, label %18, label %36

18:                                               ; preds = %15
  %19 = load i64, ptr %4, align 8, !tbaa !9
  %20 = load i64, ptr %5, align 8, !tbaa !9
  %21 = shl i64 1, %20
  %22 = icmp sge i64 %19, %21
  br i1 %22, label %23, label %33

23:                                               ; preds = %18
  %24 = load i64, ptr %4, align 8, !tbaa !9
  %25 = load i64, ptr %5, align 8, !tbaa !9
  %26 = shl i64 1, %25
  %27 = sub nsw i64 %24, %26
  store i64 %27, ptr %4, align 8, !tbaa !9
  %28 = load i64, ptr %6, align 8, !tbaa !9
  %29 = load i64, ptr %5, align 8, !tbaa !9
  %30 = shl i64 2, %29
  %31 = add nsw i64 %28, %30
  %32 = sub nsw i64 %31, 1
  store i64 %32, ptr %6, align 8, !tbaa !9
  br label %33

33:                                               ; preds = %23, %18
  %34 = load i64, ptr %5, align 8, !tbaa !9
  %35 = add nsw i64 %34, -1
  store i64 %35, ptr %5, align 8, !tbaa !9
  br label %15, !llvm.loop !11

36:                                               ; preds = %15
  %37 = load i64, ptr %6, align 8, !tbaa !9
  %38 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %37)
  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 %39

39:                                               ; preds = %36
  %40 = load i32, ptr %3, align 4, !tbaa !5
  %41 = add nsw i32 %40, 1
  store i32 %41, ptr %3, align 4, !tbaa !5
  br label %8, !llvm.loop !13

42:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  ret i32 0
}

; 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

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 = !{!"int", !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"}
!13 = distinct !{!13, !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 [3 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 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 i32, align 4
  %2 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #3
  %3 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %4 = load i32, ptr %1, align 4, !tbaa !5
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %28, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #3
  ret i32 0

.lr.ph:                                           ; preds = %0, %28
  %.01015 = phi i32 [ %30, %28 ], [ 0, %0 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %6 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %2)
  %.promoted = load i64, ptr %2, align 8, !tbaa !9
  br label %7

7:                                                ; preds = %25, %.lr.ph
  %.014 = phi i64 [ 0, %.lr.ph ], [ %.1.1, %25 ]
  %.0913 = phi i64 [ 62, %.lr.ph ], [ %27, %25 ]
  %8 = phi i64 [ %.promoted, %.lr.ph ], [ %26, %25 ]
  %9 = shl nuw i64 1, %.0913
  %.not = icmp slt i64 %8, %9
  br i1 %.not, label %15, label %10

10:                                               ; preds = %7
  %11 = sub nsw i64 %8, %9
  store i64 %11, ptr %2, align 8, !tbaa !9
  %12 = shl i64 2, %.0913
  %13 = add i64 %12, -1
  %14 = add i64 %13, %.014
  br label %15

15:                                               ; preds = %10, %7
  %16 = phi i64 [ %11, %10 ], [ %8, %7 ]
  %.1 = phi i64 [ %14, %10 ], [ %.014, %7 ]
  %17 = add nsw i64 %.0913, -1
  %.not16 = icmp eq i64 %.0913, 0
  br i1 %.not16, label %28, label %18, !llvm.loop !11

18:                                               ; preds = %15
  %19 = shl nuw i64 1, %17
  %.not.1 = icmp slt i64 %16, %19
  br i1 %.not.1, label %25, label %20

20:                                               ; preds = %18
  %21 = sub nsw i64 %16, %19
  store i64 %21, ptr %2, align 8, !tbaa !9
  %22 = shl i64 2, %17
  %23 = add nsw i64 %22, -1
  %24 = add i64 %23, %.1
  br label %25

25:                                               ; preds = %20, %18
  %26 = phi i64 [ %21, %20 ], [ %16, %18 ]
  %.1.1 = phi i64 [ %24, %20 ], [ %.1, %18 ]
  %27 = add nsw i64 %.0913, -2
  br label %7

28:                                               ; preds = %15
  %29 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %.1)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  %30 = add nuw nsw i32 %.01015, 1
  %31 = load i32, ptr %1, align 4, !tbaa !5
  %32 = icmp slt i32 %30, %31
  br i1 %32, label %.lr.ph, label %._crit_edge, !llvm.loop !13
}

; 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

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 = !{!"int", !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"}
!13 = distinct !{!13, !12}


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