; LLVM IR from Tunghohin/Competitive_Coding :: Daimayuan/654.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"

%struct.Node = type { i32, i32, i32, i32 }

@a = external dso_local global [200010 x i32], align 16
@tr = external dso_local global [800040 x %struct.Node], align 16

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z7push_upR4NodeS0_S0_(ptr noundef nonnull align 4 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(16)) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5buildiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !5
  %8 = load i32, ptr %5, align 4, !tbaa !5
  %9 = load i32, ptr %6, align 4, !tbaa !5
  %10 = icmp eq i32 %8, %9
  br i1 %10, label %11, label %33

11:                                               ; preds = %3
  %12 = load i32, ptr %5, align 4, !tbaa !5
  %13 = load i32, ptr %4, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds [800040 x %struct.Node], ptr @tr, i64 0, i64 %14
  %16 = getelementptr inbounds %struct.Node, ptr %15, i32 0, i32 1
  store i32 %12, ptr %16, align 4, !tbaa !9
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [800040 x %struct.Node], ptr @tr, i64 0, i64 %18
  %20 = getelementptr inbounds %struct.Node, ptr %19, i32 0, i32 0
  store i32 %12, ptr %20, align 16, !tbaa !11
  %21 = load i32, ptr %5, align 4, !tbaa !5
  %22 = sext i32 %21 to i64
  %23 = getelementptr inbounds [200010 x i32], ptr @a, i64 0, i64 %22
  %24 = load i32, ptr %23, align 4, !tbaa !5
  %25 = load i32, ptr %4, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds [800040 x %struct.Node], ptr @tr, i64 0, i64 %26
  %28 = getelementptr inbounds %struct.Node, ptr %27, i32 0, i32 2
  store i32 %24, ptr %28, align 8, !tbaa !12
  %29 = load i32, ptr %4, align 4, !tbaa !5
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds [800040 x %struct.Node], ptr @tr, i64 0, i64 %30
  %32 = getelementptr inbounds %struct.Node, ptr %31, i32 0, i32 3
  store i32 1, ptr %32, align 4, !tbaa !13
  br label %60

33:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  %34 = load i32, ptr %5, align 4, !tbaa !5
  %35 = load i32, ptr %6, align 4, !tbaa !5
  %36 = add nsw i32 %34, %35
  %37 = ashr i32 %36, 1
  store i32 %37, ptr %7, align 4, !tbaa !5
  %38 = load i32, ptr %4, align 4, !tbaa !5
  %39 = shl i32 %38, 1
  %40 = load i32, ptr %5, align 4, !tbaa !5
  %41 = load i32, ptr %7, align 4, !tbaa !5
  call void @_Z5buildiii(i32 noundef %39, i32 noundef %40, i32 noundef %41)
  %42 = load i32, ptr %4, align 4, !tbaa !5
  %43 = shl i32 %42, 1
  %44 = or i32 %43, 1
  %45 = load i32, ptr %7, align 4, !tbaa !5
  %46 = add nsw i32 %45, 1
  %47 = load i32, ptr %6, align 4, !tbaa !5
  call void @_Z5buildiii(i32 noundef %44, i32 noundef %46, i32 noundef %47)
  %48 = load i32, ptr %4, align 4, !tbaa !5
  %49 = sext i32 %48 to i64
  %50 = getelementptr inbounds [800040 x %struct.Node], ptr @tr, i64 0, i64 %49
  %51 = load i32, ptr %4, align 4, !tbaa !5
  %52 = shl i32 %51, 1
  %53 = sext i32 %52 to i64
  %54 = getelementptr inbounds [800040 x %struct.Node], ptr @tr, i64 0, i64 %53
  %55 = load i32, ptr %4, align 4, !tbaa !5
  %56 = shl i32 %55, 1
  %57 = or i32 %56, 1
  %58 = sext i32 %57 to i64
  %59 = getelementptr inbounds [800040 x %struct.Node], ptr @tr, i64 0, i64 %58
  call void @_Z7push_upR4NodeS0_S0_(ptr noundef nonnull align 4 dereferenceable(16) %50, ptr noundef nonnull align 4 dereferenceable(16) %54, ptr noundef nonnull align 4 dereferenceable(16) %59)
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %60

60:                                               ; preds = %33, %11
  ret void
}

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

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

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 = { 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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, !6, i64 4}
!10 = !{!"_ZTS4Node", !6, i64 0, !6, i64 4, !6, i64 8, !6, i64 12}
!11 = !{!10, !6, i64 0}
!12 = !{!10, !6, i64 8}
!13 = !{!10, !6, i64 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"

%struct.Node = type { i32, i32, i32, i32 }

@a = external dso_local local_unnamed_addr global [200010 x i32], align 16
@tr = external dso_local global [800040 x %struct.Node], align 16

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z7push_upR4NodeS0_S0_(ptr noundef nonnull align 4 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(16)) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z5buildiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = icmp eq i32 %1, %2
  br i1 %4, label %common.ret, label %13

common.ret:                                       ; preds = %3
  %5 = sext i32 %0 to i64
  %6 = getelementptr inbounds [800040 x %struct.Node], ptr @tr, i64 0, i64 %5
  %7 = getelementptr inbounds i8, ptr %6, i64 4
  store i32 %1, ptr %7, align 4, !tbaa !5
  store i32 %1, ptr %6, align 16, !tbaa !10
  %8 = sext i32 %1 to i64
  %9 = getelementptr inbounds [200010 x i32], ptr @a, i64 0, i64 %8
  %10 = load i32, ptr %9, align 4, !tbaa !11
  %11 = getelementptr inbounds i8, ptr %6, i64 8
  store i32 %10, ptr %11, align 8, !tbaa !12
  %12 = getelementptr inbounds i8, ptr %6, i64 12
  store i32 1, ptr %12, align 4, !tbaa !13
  br label %common.ret20

common.ret20:                                     ; preds = %13, %common.ret
  ret void

13:                                               ; preds = %3
  %14 = add nsw i32 %2, %1
  %15 = ashr i32 %14, 1
  %16 = shl i32 %0, 1
  tail call void @_Z5buildiii(i32 noundef %16, i32 noundef %1, i32 noundef %15)
  %17 = or disjoint i32 %16, 1
  %18 = add nsw i32 %15, 1
  tail call void @_Z5buildiii(i32 noundef %17, i32 noundef %18, i32 noundef %2)
  %19 = sext i32 %0 to i64
  %20 = getelementptr inbounds [800040 x %struct.Node], ptr @tr, i64 0, i64 %19
  %21 = sext i32 %16 to i64
  %22 = getelementptr inbounds [800040 x %struct.Node], ptr @tr, i64 0, i64 %21
  %23 = sext i32 %17 to i64
  %24 = getelementptr inbounds [800040 x %struct.Node], ptr @tr, i64 0, i64 %23
  tail call void @_Z7push_upR4NodeS0_S0_(ptr noundef nonnull align 4 dereferenceable(16) %20, ptr noundef nonnull align 4 dereferenceable(16) %22, ptr noundef nonnull align 4 dereferenceable(16) %24)
  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, !7, i64 4}
!6 = !{!"_ZTS4Node", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!6, !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{!6, !7, i64 8}
!13 = !{!6, !7, i64 12}


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