; LLVM IR from AnneLivia/Competitive-Programming :: Online Judges/URI/2448/main.ll (Z7binarioiiiSt6vectorIiSaIiEE)

; 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"

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z7binarioiiiSt6vectorIiSaIiEE(i32 noundef %0, i32 noundef %1, i32 noundef %2, ptr noundef %3) #0 {
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store i32 %0, ptr %5, align 4, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  store i32 0, ptr %9, align 4, !tbaa !5
  %10 = load i32, ptr %7, align 4, !tbaa !5
  %11 = sub nsw i32 %10, 1
  store i32 %11, ptr %7, align 4, !tbaa !5
  br label %12

12:                                               ; preds = %43, %4
  %13 = load i32, ptr %6, align 4, !tbaa !5
  %14 = load i32, ptr %7, align 4, !tbaa !5
  %15 = icmp sle i32 %13, %14
  br i1 %15, label %16, label %44

16:                                               ; preds = %12
  %17 = load i32, ptr %6, align 4, !tbaa !5
  %18 = load i32, ptr %7, align 4, !tbaa !5
  %19 = add nsw i32 %17, %18
  %20 = sdiv i32 %19, 2
  store i32 %20, ptr %9, align 4, !tbaa !5
  %21 = load i32, ptr %5, align 4, !tbaa !5
  %22 = load i32, ptr %9, align 4, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %23) #2
  %25 = load i32, ptr %24, align 4, !tbaa !5
  %26 = icmp slt i32 %21, %25
  br i1 %26, label %27, label %30

27:                                               ; preds = %16
  %28 = load i32, ptr %9, align 4, !tbaa !5
  %29 = sub nsw i32 %28, 1
  store i32 %29, ptr %7, align 4, !tbaa !5
  br label %43

30:                                               ; preds = %16
  %31 = load i32, ptr %5, align 4, !tbaa !5
  %32 = load i32, ptr %9, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %33) #2
  %35 = load i32, ptr %34, align 4, !tbaa !5
  %36 = icmp sgt i32 %31, %35
  br i1 %36, label %37, label %40

37:                                               ; preds = %30
  %38 = load i32, ptr %9, align 4, !tbaa !5
  %39 = add nsw i32 %38, 1
  store i32 %39, ptr %6, align 4, !tbaa !5
  br label %42

40:                                               ; preds = %30
  %41 = load i32, ptr %9, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  ret i32 %41

42:                                               ; preds = %37
  br label %43

43:                                               ; preds = %42, %27
  br label %12, !llvm.loop !11

44:                                               ; preds = %12
  unreachable
}

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 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 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 = !{!"any pointer", !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"

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef range(i32 -1073741824, 1073741824) i32 @_Z7binarioiiiSt6vectorIiSaIiEE(i32 noundef %0, i32 noundef %1, i32 noundef %2, ptr noundef %3) local_unnamed_addr #0 {
  br label %.outer

.outer:                                           ; preds = %5, %4
  %.012.ph.in = phi i32 [ %2, %4 ], [ %8, %5 ]
  %.0.ph = phi i32 [ %1, %4 ], [ %.0, %5 ]
  %.012.ph = add nsw i32 %.012.ph.in, -1
  br label %5

5:                                                ; preds = %.outer, %17
  %.0 = phi i32 [ %18, %17 ], [ %.0.ph, %.outer ]
  %6 = icmp slt i32 %.0, %.012.ph.in
  tail call void @llvm.assume(i1 %6)
  %7 = add nsw i32 %.0, %.012.ph
  %8 = sdiv i32 %7, 2
  %9 = sext i32 %8 to i64
  %10 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %9) #2
  %11 = load i32, ptr %10, align 4, !tbaa !5
  %12 = icmp sgt i32 %11, %0
  br i1 %12, label %.outer, label %13, !llvm.loop !9

13:                                               ; preds = %5
  %14 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %9) #2
  %15 = load i32, ptr %14, align 4, !tbaa !5
  %16 = icmp slt i32 %15, %0
  br i1 %16, label %17, label %19

17:                                               ; preds = %13
  %18 = add nsw i32 %8, 1
  br label %5, !llvm.loop !9

19:                                               ; preds = %13
  ret i32 %8
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: write)
declare void @llvm.assume(i1 noundef) #1

attributes #0 = { mustprogress 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 = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: write) }
attributes #2 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass