; LLVM IR from chromia/lichtenberg :: src/core.ll (ZN11lichtenberg8TreeNodeC2Ev)

; 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"

%"class.std::tuple.2" = type { %"struct.std::_Tuple_impl.3" }
%"struct.std::_Tuple_impl.3" = type { %"struct.std::_Tuple_impl.4", %"struct.std::_Head_base.1" }
%"struct.std::_Tuple_impl.4" = type { %"struct.std::_Tuple_impl.5", %"struct.std::_Head_base" }
%"struct.std::_Tuple_impl.5" = type { %"struct.std::_Head_base.6" }
%"struct.std::_Head_base.6" = type { i32 }
%"struct.std::_Head_base" = type { i32 }
%"struct.std::_Head_base.1" = type { i32 }
%"class.lichtenberg::TreeNode" = type <{ ptr, ptr, ptr, ptr, %"class.std::tuple.2", [4 x i8] }>

; 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
define dso_local void @_ZN11lichtenberg8TreeNodeC2Ev(ptr noundef nonnull align 8 dereferenceable(44) %0) unnamed_addr #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca %"class.std::tuple.2", align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %7 = load ptr, ptr %2, align 8
  %8 = getelementptr inbounds %"class.lichtenberg::TreeNode", ptr %7, i32 0, i32 4
  call void @_ZNSt5tupleIJiiiEEC2IvTnNSt9enable_ifIXclsr4_TCCIXsr7is_voidIT_EE5valueEEE37__is_implicitly_default_constructibleEEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(12) %8) #2
  %9 = getelementptr inbounds %"class.lichtenberg::TreeNode", ptr %7, i32 0, i32 0
  store ptr null, ptr %9, align 8, !tbaa !9
  %10 = getelementptr inbounds %"class.lichtenberg::TreeNode", ptr %7, i32 0, i32 1
  store ptr null, ptr %10, align 8, !tbaa !19
  %11 = getelementptr inbounds %"class.lichtenberg::TreeNode", ptr %7, i32 0, i32 2
  store ptr null, ptr %11, align 8, !tbaa !20
  %12 = getelementptr inbounds %"class.lichtenberg::TreeNode", ptr %7, i32 0, i32 3
  store ptr null, ptr %12, align 8, !tbaa !21
  call void @llvm.lifetime.start.p0(i64 12, ptr %3) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #2
  store i32 0, ptr %4, align 4, !tbaa !22
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !22
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  store i32 0, ptr %6, align 4, !tbaa !22
  call void @_ZNSt5tupleIJiiiEEC2IJiiiELb1ETnNSt9enable_ifIXclsr4_TCCIXT0_EEE29__is_implicitly_constructibleIDpT_EEEbE4typeELb1EEEDpOS3_(ptr noundef nonnull align 4 dereferenceable(12) %3, ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 4 dereferenceable(4) %6) #2
  %13 = getelementptr inbounds %"class.lichtenberg::TreeNode", ptr %7, i32 0, i32 4
  %14 = call noundef nonnull align 4 dereferenceable(12) ptr @_ZNSt5tupleIJiiiEEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(12) %13, ptr noundef nonnull align 4 dereferenceable(12) %3) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #2
  call void @llvm.lifetime.end.p0(i64 12, ptr %3) #2
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5tupleIJiiiEEC2IvTnNSt9enable_ifIXclsr4_TCCIXsr7is_voidIT_EE5valueEEE37__is_implicitly_default_constructibleEEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(12)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5tupleIJiiiEEC2IJiiiELb1ETnNSt9enable_ifIXclsr4_TCCIXT0_EEE29__is_implicitly_constructibleIDpT_EEEbE4typeELb1EEEDpOS3_(ptr noundef nonnull align 4 dereferenceable(12), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(12) ptr @_ZNSt5tupleIJiiiEEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(12), ptr noundef nonnull align 4 dereferenceable(12)) #1 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 = { 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 0}
!10 = !{!"_ZTSN11lichtenberg8TreeNodeE", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !11, i64 32}
!11 = !{!"_ZTSSt5tupleIJiiiEE", !12, i64 0}
!12 = !{!"_ZTSSt11_Tuple_implILm0EJiiiEE", !13, i64 0, !18, i64 8}
!13 = !{!"_ZTSSt11_Tuple_implILm1EJiiEE", !14, i64 0, !17, i64 4}
!14 = !{!"_ZTSSt11_Tuple_implILm2EJiEE", !15, i64 0}
!15 = !{!"_ZTSSt10_Head_baseILm2EiLb0EE", !16, i64 0}
!16 = !{!"int", !7, i64 0}
!17 = !{!"_ZTSSt10_Head_baseILm1EiLb0EE", !16, i64 0}
!18 = !{!"_ZTSSt10_Head_baseILm0EiLb0EE", !16, i64 0}
!19 = !{!10, !6, i64 8}
!20 = !{!10, !6, i64 16}
!21 = !{!10, !6, i64 24}
!22 = !{!16, !16, 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"

%"class.std::tuple.2" = type { %"struct.std::_Tuple_impl.3" }
%"struct.std::_Tuple_impl.3" = type { %"struct.std::_Tuple_impl.4", %"struct.std::_Head_base.1" }
%"struct.std::_Tuple_impl.4" = type { %"struct.std::_Tuple_impl.5", %"struct.std::_Head_base" }
%"struct.std::_Tuple_impl.5" = type { %"struct.std::_Head_base.6" }
%"struct.std::_Head_base.6" = type { i32 }
%"struct.std::_Head_base" = type { i32 }
%"struct.std::_Head_base.1" = type { i32 }

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

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

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN11lichtenberg8TreeNodeC2Ev(ptr noundef nonnull align 8 dereferenceable(44) %0) unnamed_addr #1 align 2 {
  %2 = alloca %"class.std::tuple.2", align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = getelementptr inbounds i8, ptr %0, i64 32
  tail call void @_ZNSt5tupleIJiiiEEC2IvTnNSt9enable_ifIXclsr4_TCCIXsr7is_voidIT_EE5valueEEE37__is_implicitly_default_constructibleEEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(12) %6) #3
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(32) %0, i8 0, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #3
  store i32 0, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #3
  store i32 0, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #3
  store i32 0, ptr %5, align 4, !tbaa !5
  call void @_ZNSt5tupleIJiiiEEC2IJiiiELb1ETnNSt9enable_ifIXclsr4_TCCIXT0_EEE29__is_implicitly_constructibleIDpT_EEEbE4typeELb1EEEDpOS3_(ptr noundef nonnull align 4 dereferenceable(12) %2, ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %5) #3
  %7 = call noundef nonnull align 4 dereferenceable(12) ptr @_ZNSt5tupleIJiiiEEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(12) %6, ptr noundef nonnull align 4 dereferenceable(12) %2) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %2) #3
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5tupleIJiiiEEC2IvTnNSt9enable_ifIXclsr4_TCCIXsr7is_voidIT_EE5valueEEE37__is_implicitly_default_constructibleEEbE4typeELb1EEEv(ptr noundef nonnull align 4 dereferenceable(12)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt5tupleIJiiiEEC2IJiiiELb1ETnNSt9enable_ifIXclsr4_TCCIXT0_EEE29__is_implicitly_constructibleIDpT_EEEbE4typeELb1EEEDpOS3_(ptr noundef nonnull align 4 dereferenceable(12), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(12) ptr @_ZNSt5tupleIJiiiEEaSEOS0_(ptr noundef nonnull align 4 dereferenceable(12), ptr noundef nonnull align 4 dereferenceable(12)) local_unnamed_addr #1 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

attributes #0 = { mustprogress 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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,SROAPass,TailCallElimPass