; LLVM IR from lzyrapx/Competitive-Programming :: ACdream/1104（Splay+Hash+二分）.ll (Z5buildiii)

; 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"

@son = external dso_local global [200010 x [2 x i32]], align 16
@fa = external dso_local global [200010 x i32], align 16
@str = external dso_local global [200010 x i8], align 16

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z2upi(i32 noundef) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z7newNodei(i32 noundef) #0

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

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

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_Z5buildiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) #2 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %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
  %10 = load i32, ptr %5, align 4, !tbaa !5
  %11 = load i32, ptr %6, align 4, !tbaa !5
  %12 = icmp sgt i32 %10, %11
  br i1 %12, label %13, label %14

13:                                               ; preds = %3
  store i32 0, ptr %4, align 4
  br label %49

14:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  %15 = load i32, ptr %5, align 4, !tbaa !5
  %16 = load i32, ptr %6, align 4, !tbaa !5
  %17 = add nsw i32 %15, %16
  %18 = ashr i32 %17, 1
  store i32 %18, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %19 = load i32, ptr %8, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds [200010 x i8], ptr @str, i64 0, i64 %20
  %22 = load i8, ptr %21, align 1, !tbaa !9
  %23 = sext i8 %22 to i32
  %24 = call noundef i32 @_Z7newNodei(i32 noundef %23)
  store i32 %24, ptr %9, align 4, !tbaa !5
  %25 = load i32, ptr %7, align 4, !tbaa !5
  %26 = load i32, ptr %9, align 4, !tbaa !5
  %27 = sext i32 %26 to i64
  %28 = getelementptr inbounds [200010 x i32], ptr @fa, i64 0, i64 %27
  store i32 %25, ptr %28, align 4, !tbaa !5
  %29 = load i32, ptr %5, align 4, !tbaa !5
  %30 = load i32, ptr %8, align 4, !tbaa !5
  %31 = sub nsw i32 %30, 1
  %32 = load i32, ptr %9, align 4, !tbaa !5
  %33 = call noundef i32 @_Z5buildiii(i32 noundef %29, i32 noundef %31, i32 noundef %32)
  %34 = load i32, ptr %9, align 4, !tbaa !5
  %35 = sext i32 %34 to i64
  %36 = getelementptr inbounds [200010 x [2 x i32]], ptr @son, i64 0, i64 %35
  %37 = getelementptr inbounds [2 x i32], ptr %36, i64 0, i64 0
  store i32 %33, ptr %37, align 8, !tbaa !5
  %38 = load i32, ptr %8, align 4, !tbaa !5
  %39 = add nsw i32 %38, 1
  %40 = load i32, ptr %6, align 4, !tbaa !5
  %41 = load i32, ptr %9, align 4, !tbaa !5
  %42 = call noundef i32 @_Z5buildiii(i32 noundef %39, i32 noundef %40, i32 noundef %41)
  %43 = load i32, ptr %9, align 4, !tbaa !5
  %44 = sext i32 %43 to i64
  %45 = getelementptr inbounds [200010 x [2 x i32]], ptr @son, i64 0, i64 %44
  %46 = getelementptr inbounds [2 x i32], ptr %45, i64 0, i64 1
  store i32 %42, ptr %46, align 4, !tbaa !5
  %47 = load i32, ptr %9, align 4, !tbaa !5
  call void @_Z2upi(i32 noundef %47)
  %48 = load i32, ptr %9, align 4, !tbaa !5
  store i32 %48, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  br label %49

49:                                               ; preds = %14, %13
  %50 = load i32, ptr %4, align 4
  ret i32 %50
}

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 = { 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 #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 = !{!7, !7, i64 0}


; 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"

@son = external dso_local local_unnamed_addr global [200010 x [2 x i32]], align 16
@fa = external dso_local local_unnamed_addr global [200010 x i32], align 16
@str = external dso_local local_unnamed_addr global [200010 x i8], align 16

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z2upi(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_Z7newNodei(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z5buildiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = icmp sgt i32 %0, %1
  br i1 %4, label %common.ret20, label %5

common.ret20:                                     ; preds = %3, %5
  %common.ret20.op = phi i32 [ %12, %5 ], [ 0, %3 ]
  ret i32 %common.ret20.op

5:                                                ; preds = %3
  %6 = add nsw i32 %1, %0
  %7 = ashr i32 %6, 1
  %8 = sext i32 %7 to i64
  %9 = getelementptr inbounds [200010 x i8], ptr @str, i64 0, i64 %8
  %10 = load i8, ptr %9, align 1, !tbaa !5
  %11 = sext i8 %10 to i32
  %12 = tail call noundef i32 @_Z7newNodei(i32 noundef %11)
  %13 = sext i32 %12 to i64
  %14 = getelementptr inbounds [200010 x i32], ptr @fa, i64 0, i64 %13
  store i32 %2, ptr %14, align 4, !tbaa !8
  %15 = add nsw i32 %7, -1
  %16 = tail call noundef i32 @_Z5buildiii(i32 noundef %0, i32 noundef %15, i32 noundef %12)
  %17 = getelementptr inbounds [200010 x [2 x i32]], ptr @son, i64 0, i64 %13
  store i32 %16, ptr %17, align 8, !tbaa !8
  %18 = add nsw i32 %7, 1
  %19 = tail call noundef i32 @_Z5buildiii(i32 noundef %18, i32 noundef %1, i32 noundef %12)
  %20 = getelementptr inbounds i8, ptr %17, i64 4
  store i32 %19, ptr %20, align 4, !tbaa !8
  tail call void @_Z2upi(i32 noundef %12)
  br label %common.ret20
}

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" }

!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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !6, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass