; LLVM IR from aap/librw :: src/frame.ll (ZN2rw5Frame11removeChildEv)

; 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.rw::Frame" = type { %"struct.rw::Object", %"struct.rw::LLLink", %"struct.rw::LinkList", %"struct.rw::Matrix", %"struct.rw::Matrix", ptr, ptr, ptr }
%"struct.rw::Object" = type { i8, i8, i8, i8, ptr }
%"struct.rw::LLLink" = type { ptr, ptr }
%"struct.rw::LinkList" = type { %"struct.rw::LLLink" }
%"struct.rw::Matrix" = type { %"struct.rw::V3d", i32, %"struct.rw::V3d", i32, %"struct.rw::V3d", i32, %"struct.rw::V3d", i32 }
%"struct.rw::V3d" = type { float, float, float }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK2rw5Frame9getParentEv(ptr noundef nonnull align 8 dereferenceable(200)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN2rw5Frame11removeChildEv(ptr noundef nonnull align 8 dereferenceable(200) %0) #2 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %6 = call noundef ptr @_ZNK2rw5Frame9getParentEv(ptr noundef nonnull align 8 dereferenceable(200) %5)
  store ptr %6, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = getelementptr inbounds %"struct.rw::Frame", ptr %7, i32 0, i32 5
  %9 = load ptr, ptr %8, align 8, !tbaa !9
  store ptr %9, ptr %4, align 8, !tbaa !5
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = icmp eq ptr %10, %5
  br i1 %11, label %12, label %17

12:                                               ; preds = %1
  %13 = getelementptr inbounds %"struct.rw::Frame", ptr %5, i32 0, i32 6
  %14 = load ptr, ptr %13, align 8, !tbaa !18
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds %"struct.rw::Frame", ptr %15, i32 0, i32 5
  store ptr %14, ptr %16, align 8, !tbaa !9
  br label %32

17:                                               ; preds = %1
  br label %18

18:                                               ; preds = %23, %17
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = getelementptr inbounds %"struct.rw::Frame", ptr %19, i32 0, i32 6
  %21 = load ptr, ptr %20, align 8, !tbaa !18
  %22 = icmp ne ptr %21, %5
  br i1 %22, label %23, label %27

23:                                               ; preds = %18
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = getelementptr inbounds %"struct.rw::Frame", ptr %24, i32 0, i32 6
  %26 = load ptr, ptr %25, align 8, !tbaa !18
  store ptr %26, ptr %4, align 8, !tbaa !5
  br label %18, !llvm.loop !19

27:                                               ; preds = %18
  %28 = getelementptr inbounds %"struct.rw::Frame", ptr %5, i32 0, i32 6
  %29 = load ptr, ptr %28, align 8, !tbaa !18
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  %31 = getelementptr inbounds %"struct.rw::Frame", ptr %30, i32 0, i32 6
  store ptr %29, ptr %31, align 8, !tbaa !18
  br label %32

32:                                               ; preds = %27, %12
  %33 = getelementptr inbounds %"struct.rw::Frame", ptr %5, i32 0, i32 6
  store ptr null, ptr %33, align 8, !tbaa !18
  %34 = getelementptr inbounds %"struct.rw::Frame", ptr %5, i32 0, i32 0
  %35 = getelementptr inbounds %"struct.rw::Object", ptr %34, i32 0, i32 4
  store ptr null, ptr %35, align 8, !tbaa !21
  call void @_ZN2rw5Frame16setHierarchyRootEPS0_(ptr noundef nonnull align 8 dereferenceable(200) %5, ptr noundef %5)
  call void @_ZN2rw5Frame13updateObjectsEv(ptr noundef nonnull align 8 dereferenceable(200) %5)
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret ptr %5
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN2rw5Frame16setHierarchyRootEPS0_(ptr noundef nonnull align 8 dereferenceable(200), ptr noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN2rw5Frame13updateObjectsEv(ptr noundef nonnull align 8 dereferenceable(200)) #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 176}
!10 = !{!"_ZTSN2rw5FrameE", !11, i64 0, !12, i64 16, !13, i64 32, !14, i64 48, !14, i64 112, !6, i64 176, !6, i64 184, !6, i64 192}
!11 = !{!"_ZTSN2rw6ObjectE", !7, i64 0, !7, i64 1, !7, i64 2, !7, i64 3, !6, i64 8}
!12 = !{!"_ZTSN2rw6LLLinkE", !6, i64 0, !6, i64 8}
!13 = !{!"_ZTSN2rw8LinkListE", !12, i64 0}
!14 = !{!"_ZTSN2rw6MatrixE", !15, i64 0, !17, i64 12, !15, i64 16, !17, i64 28, !15, i64 32, !17, i64 44, !15, i64 48, !17, i64 60}
!15 = !{!"_ZTSN2rw3V3dE", !16, i64 0, !16, i64 4, !16, i64 8}
!16 = !{!"float", !7, i64 0}
!17 = !{!"int", !7, i64 0}
!18 = !{!10, !6, i64 184}
!19 = distinct !{!19, !20}
!20 = !{!"llvm.loop.mustprogress"}
!21 = !{!10, !6, i64 8}


; 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
declare dso_local noundef ptr @_ZNK2rw5Frame9getParentEv(ptr noundef nonnull align 8 dereferenceable(200)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef nonnull ptr @_ZN2rw5Frame11removeChildEv(ptr noundef nonnull returned align 8 dereferenceable(200) %0) local_unnamed_addr #1 align 2 {
  %2 = tail call noundef ptr @_ZNK2rw5Frame9getParentEv(ptr noundef nonnull align 8 dereferenceable(200) %0)
  %3 = getelementptr inbounds i8, ptr %2, i64 176
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = icmp eq ptr %4, %0
  br i1 %5, label %10, label %.preheader

.preheader:                                       ; preds = %1, %.preheader
  %.0 = phi ptr [ %7, %.preheader ], [ %4, %1 ]
  %6 = getelementptr inbounds i8, ptr %.0, i64 184
  %7 = load ptr, ptr %6, align 8, !tbaa !17
  %.not = icmp eq ptr %7, %0
  br i1 %.not, label %8, label %.preheader, !llvm.loop !18

8:                                                ; preds = %.preheader
  %9 = getelementptr inbounds i8, ptr %.0, i64 184
  br label %10

10:                                               ; preds = %1, %8
  %.sink10 = phi ptr [ %9, %8 ], [ %3, %1 ]
  %11 = getelementptr inbounds i8, ptr %0, i64 184
  %12 = load ptr, ptr %11, align 8, !tbaa !17
  store ptr %12, ptr %.sink10, align 8, !tbaa !20
  %13 = getelementptr inbounds i8, ptr %0, i64 184
  store ptr null, ptr %13, align 8, !tbaa !17
  %14 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr null, ptr %14, align 8, !tbaa !21
  tail call void @_ZN2rw5Frame16setHierarchyRootEPS0_(ptr noundef nonnull align 8 dereferenceable(200) %0, ptr noundef nonnull %0)
  tail call void @_ZN2rw5Frame13updateObjectsEv(ptr noundef nonnull align 8 dereferenceable(200) %0)
  ret ptr %0
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN2rw5Frame16setHierarchyRootEPS0_(ptr noundef nonnull align 8 dereferenceable(200), ptr noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN2rw5Frame13updateObjectsEv(ptr noundef nonnull align 8 dereferenceable(200)) local_unnamed_addr #1 align 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" }

!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 176}
!6 = !{!"_ZTSN2rw5FrameE", !7, i64 0, !11, i64 16, !12, i64 32, !13, i64 48, !13, i64 112, !10, i64 176, !10, i64 184, !10, i64 192}
!7 = !{!"_ZTSN2rw6ObjectE", !8, i64 0, !8, i64 1, !8, i64 2, !8, i64 3, !10, i64 8}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"_ZTSN2rw6LLLinkE", !10, i64 0, !10, i64 8}
!12 = !{!"_ZTSN2rw8LinkListE", !11, i64 0}
!13 = !{!"_ZTSN2rw6MatrixE", !14, i64 0, !16, i64 12, !14, i64 16, !16, i64 28, !14, i64 32, !16, i64 44, !14, i64 48, !16, i64 60}
!14 = !{!"_ZTSN2rw3V3dE", !15, i64 0, !15, i64 4, !15, i64 8}
!15 = !{!"float", !8, i64 0}
!16 = !{!"int", !8, i64 0}
!17 = !{!6, !10, i64 184}
!18 = distinct !{!18, !19}
!19 = !{!"llvm.loop.mustprogress"}
!20 = !{!10, !10, i64 0}
!21 = !{!6, !10, i64 8}


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