; LLVM IR from VastoLorde95/Competitive-Programming :: Hackerrank/Company Contests/Indeed Prime/tree.ll (Z4initiii)

; 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 }

@arr = external dso_local global [131072 x i32], align 16
@tree = external dso_local global [262144 x %struct.node], align 16

; Function Attrs: mustprogress uwtable
define dso_local void @_Z4initiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca %struct.node, align 4
  %8 = alloca %struct.node, 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
  %9 = load i32, ptr %5, align 4, !tbaa !5
  %10 = load i32, ptr %6, align 4, !tbaa !5
  %11 = icmp eq i32 %9, %10
  br i1 %11, label %12, label %21

12:                                               ; preds = %3
  %13 = load i32, ptr %4, align 4, !tbaa !5
  %14 = sext i32 %13 to i64
  %15 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %14
  %16 = load i32, ptr %5, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [131072 x i32], ptr @arr, i64 0, i64 %17
  %19 = load i32, ptr %18, align 4, !tbaa !5
  %20 = load i32, ptr %5, align 4, !tbaa !5
  call void @_ZN4node10assignLeafEii(ptr noundef nonnull align 4 dereferenceable(8) %15, i32 noundef %19, i32 noundef %20)
  br label %50

21:                                               ; preds = %3
  %22 = load i32, ptr %4, align 4, !tbaa !5
  %23 = mul nsw i32 2, %22
  %24 = load i32, ptr %5, align 4, !tbaa !5
  %25 = load i32, ptr %5, align 4, !tbaa !5
  %26 = load i32, ptr %6, align 4, !tbaa !5
  %27 = add nsw i32 %25, %26
  %28 = sdiv i32 %27, 2
  call void @_Z4initiii(i32 noundef %23, i32 noundef %24, i32 noundef %28)
  %29 = load i32, ptr %4, align 4, !tbaa !5
  %30 = mul nsw i32 2, %29
  %31 = add nsw i32 %30, 1
  %32 = load i32, ptr %5, align 4, !tbaa !5
  %33 = load i32, ptr %6, align 4, !tbaa !5
  %34 = add nsw i32 %32, %33
  %35 = sdiv i32 %34, 2
  %36 = add nsw i32 %35, 1
  %37 = load i32, ptr %6, align 4, !tbaa !5
  call void @_Z4initiii(i32 noundef %31, i32 noundef %36, i32 noundef %37)
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %38 = load i32, ptr %4, align 4, !tbaa !5
  %39 = mul nsw i32 2, %38
  %40 = sext i32 %39 to i64
  %41 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %40
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %7, ptr align 8 %41, i64 8, i1 false), !tbaa.struct !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %42 = load i32, ptr %4, align 4, !tbaa !5
  %43 = mul nsw i32 2, %42
  %44 = add nsw i32 %43, 1
  %45 = sext i32 %44 to i64
  %46 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %45
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %8, ptr align 8 %46, i64 8, i1 false), !tbaa.struct !9
  %47 = load i32, ptr %4, align 4, !tbaa !5
  %48 = sext i32 %47 to i64
  %49 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %48
  call void @_ZN4node5mergeERS_S0_(ptr noundef nonnull align 4 dereferenceable(8) %49, ptr noundef nonnull align 4 dereferenceable(8) %7, ptr noundef nonnull align 4 dereferenceable(8) %8)
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  br label %50

50:                                               ; preds = %21, %12
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4node10assignLeafEii(ptr noundef nonnull align 4 dereferenceable(8), i32 noundef, i32 noundef) #1 align 2

; 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 nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4node5mergeERS_S0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #1 align 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 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 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{i64 0, i64 4, !5, i64 4, i64 4, !5}


; 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 }

@arr = external dso_local local_unnamed_addr global [131072 x i32], align 16
@tree = external dso_local global [262144 x %struct.node], align 16

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z4initiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = alloca %struct.node, align 8
  %5 = alloca %struct.node, align 8
  %6 = icmp eq i32 %1, %2
  br i1 %6, label %common.ret, label %12

common.ret:                                       ; preds = %3
  %7 = sext i32 %0 to i64
  %8 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %7
  %9 = sext i32 %1 to i64
  %10 = getelementptr inbounds [131072 x i32], ptr @arr, i64 0, i64 %9
  %11 = load i32, ptr %10, align 4, !tbaa !5
  tail call void @_ZN4node10assignLeafEii(ptr noundef nonnull align 4 dereferenceable(8) %8, i32 noundef %11, i32 noundef %1)
  br label %common.ret17

common.ret17:                                     ; preds = %12, %common.ret
  ret void

12:                                               ; preds = %3
  %13 = shl nsw i32 %0, 1
  %14 = add nsw i32 %2, %1
  %15 = sdiv i32 %14, 2
  tail call void @_Z4initiii(i32 noundef %13, i32 noundef %1, i32 noundef %15)
  %16 = or disjoint i32 %13, 1
  %17 = add nsw i32 %15, 1
  tail call void @_Z4initiii(i32 noundef %16, i32 noundef %17, i32 noundef %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #2
  %18 = sext i32 %13 to i64
  %19 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %18
  %20 = load i64, ptr %19, align 16
  store i64 %20, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #2
  %21 = sext i32 %16 to i64
  %22 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %21
  %23 = load i64, ptr %22, align 8
  store i64 %23, ptr %5, align 8
  %24 = sext i32 %0 to i64
  %25 = getelementptr inbounds [262144 x %struct.node], ptr @tree, i64 0, i64 %24
  call void @_ZN4node5mergeERS_S0_(ptr noundef nonnull align 4 dereferenceable(8) %25, ptr noundef nonnull align 4 dereferenceable(8) %4, ptr noundef nonnull align 4 dereferenceable(8) %5)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #2
  br label %common.ret17
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN4node10assignLeafEii(ptr noundef nonnull align 4 dereferenceable(8), i32 noundef, i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress 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 void @_ZN4node5mergeERS_S0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #0 align 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 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 = { 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"}


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