; LLVM IR from VAR-solutions/Algorithms :: data structures/Red Black/CPP/arvore_rb_c.ll (ZN4Tree10transplantEP4nodeS1_)

; 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, ptr, ptr, ptr }
%class.Tree = type { ptr, ptr }

; Function Attrs: nounwind
declare void @free(ptr noundef) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN4Tree10transplantEP4nodeS1_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef %1, ptr noundef %2) #1 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %7 = load ptr, ptr %4, align 8
  %8 = load ptr, ptr %5, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.node, ptr %8, i32 0, i32 4
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  %11 = getelementptr inbounds %class.Tree, ptr %7, i32 0, i32 1
  %12 = load ptr, ptr %11, align 8, !tbaa !12
  %13 = icmp eq ptr %10, %12
  br i1 %13, label %14, label %17

14:                                               ; preds = %3
  %15 = load ptr, ptr %6, align 8, !tbaa !5
  %16 = getelementptr inbounds %class.Tree, ptr %7, i32 0, i32 0
  store ptr %15, ptr %16, align 8, !tbaa !14
  br label %38

17:                                               ; preds = %3
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = load ptr, ptr %5, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.node, ptr %19, i32 0, i32 4
  %21 = load ptr, ptr %20, align 8, !tbaa !9
  %22 = getelementptr inbounds %struct.node, ptr %21, i32 0, i32 2
  %23 = load ptr, ptr %22, align 8, !tbaa !15
  %24 = icmp eq ptr %18, %23
  br i1 %24, label %25, label %31

25:                                               ; preds = %17
  %26 = load ptr, ptr %6, align 8, !tbaa !5
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = getelementptr inbounds %struct.node, ptr %27, i32 0, i32 4
  %29 = load ptr, ptr %28, align 8, !tbaa !9
  %30 = getelementptr inbounds %struct.node, ptr %29, i32 0, i32 2
  store ptr %26, ptr %30, align 8, !tbaa !15
  br label %37

31:                                               ; preds = %17
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  %33 = load ptr, ptr %5, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct.node, ptr %33, i32 0, i32 4
  %35 = load ptr, ptr %34, align 8, !tbaa !9
  %36 = getelementptr inbounds %struct.node, ptr %35, i32 0, i32 3
  store ptr %32, ptr %36, align 8, !tbaa !16
  br label %37

37:                                               ; preds = %31, %25
  br label %38

38:                                               ; preds = %37, %14
  %39 = load ptr, ptr %5, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct.node, ptr %39, i32 0, i32 4
  %41 = load ptr, ptr %40, align 8, !tbaa !9
  %42 = load ptr, ptr %6, align 8, !tbaa !5
  %43 = getelementptr inbounds %struct.node, ptr %42, i32 0, i32 4
  store ptr %41, ptr %43, align 8, !tbaa !9
  %44 = load ptr, ptr %5, align 8, !tbaa !5
  call void @free(ptr noundef %44) #2
  ret void
}

attributes #0 = { 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 #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 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 24}
!10 = !{!"_ZTS4node", !11, i64 0, !11, i64 4, !6, i64 8, !6, i64 16, !6, i64 24}
!11 = !{!"int", !7, i64 0}
!12 = !{!13, !6, i64 8}
!13 = !{!"_ZTS4Tree", !6, i64 0, !6, i64 8}
!14 = !{!13, !6, i64 0}
!15 = !{!10, !6, i64 8}
!16 = !{!10, !6, i64 16}


; 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 willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind willreturn uwtable
define dso_local void @_ZN4Tree10transplantEP4nodeS1_(ptr nocapture noundef nonnull align 8 dereferenceable(16) %0, ptr noundef %1, ptr noundef %2) local_unnamed_addr #1 align 2 {
  %4 = getelementptr inbounds i8, ptr %1, i64 24
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %0, i64 8
  %7 = load ptr, ptr %6, align 8, !tbaa !11
  %8 = icmp eq ptr %5, %7
  br i1 %8, label %14, label %9

9:                                                ; preds = %3
  %10 = getelementptr inbounds i8, ptr %5, i64 8
  %11 = load ptr, ptr %10, align 8, !tbaa !13
  %12 = icmp eq ptr %11, %1
  %13 = getelementptr inbounds i8, ptr %5, i64 16
  %spec.select = select i1 %12, ptr %10, ptr %13
  br label %14

14:                                               ; preds = %9, %3
  %.sink = phi ptr [ %0, %3 ], [ %spec.select, %9 ]
  store ptr %2, ptr %.sink, align 8, !tbaa !14
  %15 = getelementptr inbounds i8, ptr %2, i64 24
  store ptr %5, ptr %15, align 8, !tbaa !5
  tail call void @free(ptr noundef nonnull %1) #2
  ret void
}

attributes #0 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 willreturn 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 = { 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, !10, i64 24}
!6 = !{!"_ZTS4node", !7, i64 0, !7, i64 4, !10, i64 8, !10, i64 16, !10, i64 24}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"_ZTS4Tree", !10, i64 0, !10, i64 8}
!13 = !{!6, !10, i64 8}
!14 = !{!10, !10, i64 0}


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