; LLVM IR from prittt/GRAPHGEN :: src/GRAPHGEN (tree2dag_identities)

; 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.BinaryDrag<conact>::node" = type { %struct.conact, ptr, ptr }
%struct.conact = type { i32, %"class.std::__cxx11::basic_string", %"class.std::bitset", i64 }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::bitset" = type { %"struct.std::_Base_bitset" }
%"struct.std::_Base_bitset" = type { [3 x i64] }

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z22FindAndLinkIdentiesRecPN10BinaryDragI6conactE4nodeES3_(ptr noundef, ptr noundef) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK10BinaryDragI6conactE4node6isleafEv(ptr noundef nonnull align 8 dereferenceable(88)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z26Tree2DagUsingIdentitiesRecPN10BinaryDragI6conactE4nodeERS1_(ptr noundef %0, ptr noundef nonnull align 8 dereferenceable(48) %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = call noundef ptr @_ZNK10BinaryDragI6conactE7GetRootEv(ptr noundef nonnull align 8 dereferenceable(48) %6)
  call void @_Z22FindAndLinkIdentiesRecPN10BinaryDragI6conactE4nodeES3_(ptr noundef %5, ptr noundef %7)
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  %9 = call noundef zeroext i1 @_ZNK10BinaryDragI6conactE4node6isleafEv(ptr noundef nonnull align 8 dereferenceable(88) %8)
  br i1 %9, label %19, label %10

10:                                               ; preds = %2
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %"struct.BinaryDrag<conact>::node", ptr %11, i32 0, i32 1
  %13 = load ptr, ptr %12, align 8, !tbaa !9
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  call void @_Z26Tree2DagUsingIdentitiesRecPN10BinaryDragI6conactE4nodeERS1_(ptr noundef %13, ptr noundef nonnull align 8 dereferenceable(48) %14)
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds %"struct.BinaryDrag<conact>::node", ptr %15, i32 0, i32 2
  %17 = load ptr, ptr %16, align 8, !tbaa !18
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  call void @_Z26Tree2DagUsingIdentitiesRecPN10BinaryDragI6conactE4nodeERS1_(ptr noundef %17, ptr noundef nonnull align 8 dereferenceable(48) %18)
  br label %19

19:                                               ; preds = %10, %2
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK10BinaryDragI6conactE7GetRootEv(ptr noundef nonnull align 8 dereferenceable(48)) #1 align 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" }

!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 72}
!10 = !{!"_ZTSN10BinaryDragI6conactE4nodeE", !11, i64 0, !6, i64 72, !6, i64 80}
!11 = !{!"_ZTS6conact", !12, i64 0, !13, i64 8, !16, i64 40, !15, i64 64}
!12 = !{!"_ZTSN6conact4typeE", !7, i64 0}
!13 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !14, i64 0, !15, i64 8, !7, i64 16}
!14 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!15 = !{!"long", !7, i64 0}
!16 = !{!"_ZTSSt6bitsetILm131EE", !17, i64 0}
!17 = !{!"_ZTSSt12_Base_bitsetILm3EE", !7, i64 0}
!18 = !{!10, !6, i64 80}


; 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 uwtable
declare dso_local void @_Z22FindAndLinkIdentiesRecPN10BinaryDragI6conactE4nodeES3_(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZNK10BinaryDragI6conactE4node6isleafEv(ptr noundef nonnull align 8 dereferenceable(88)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z26Tree2DagUsingIdentitiesRecPN10BinaryDragI6conactE4nodeERS1_(ptr noundef %0, ptr noundef nonnull align 8 dereferenceable(48) %1) local_unnamed_addr #0 {
  %3 = tail call noundef ptr @_ZNK10BinaryDragI6conactE7GetRootEv(ptr noundef nonnull align 8 dereferenceable(48) %1)
  tail call void @_Z22FindAndLinkIdentiesRecPN10BinaryDragI6conactE4nodeES3_(ptr noundef %0, ptr noundef %3)
  %4 = tail call noundef zeroext i1 @_ZNK10BinaryDragI6conactE4node6isleafEv(ptr noundef nonnull align 8 dereferenceable(88) %0)
  br i1 %4, label %tailrecurse._crit_edge, label %tailrecurse

tailrecurse:                                      ; preds = %2, %tailrecurse
  %.tr8 = phi ptr [ %8, %tailrecurse ], [ %0, %2 ]
  %5 = getelementptr inbounds i8, ptr %.tr8, i64 72
  %6 = load ptr, ptr %5, align 8, !tbaa !5
  tail call void @_Z26Tree2DagUsingIdentitiesRecPN10BinaryDragI6conactE4nodeERS1_(ptr noundef %6, ptr noundef nonnull align 8 dereferenceable(48) %1)
  %7 = getelementptr inbounds i8, ptr %.tr8, i64 80
  %8 = load ptr, ptr %7, align 8, !tbaa !17
  %9 = tail call noundef ptr @_ZNK10BinaryDragI6conactE7GetRootEv(ptr noundef nonnull align 8 dereferenceable(48) %1)
  tail call void @_Z22FindAndLinkIdentiesRecPN10BinaryDragI6conactE4nodeES3_(ptr noundef %8, ptr noundef %9)
  %10 = tail call noundef zeroext i1 @_ZNK10BinaryDragI6conactE4node6isleafEv(ptr noundef nonnull align 8 dereferenceable(88) %8)
  br i1 %10, label %tailrecurse._crit_edge, label %tailrecurse

tailrecurse._crit_edge:                           ; preds = %tailrecurse, %2
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK10BinaryDragI6conactE7GetRootEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #1 align 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" }

!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, !13, i64 72}
!6 = !{!"_ZTSN10BinaryDragI6conactE4nodeE", !7, i64 0, !13, i64 72, !13, i64 80}
!7 = !{!"_ZTS6conact", !8, i64 0, !11, i64 8, !15, i64 40, !14, i64 64}
!8 = !{!"_ZTSN6conact4typeE", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !12, i64 0, !14, i64 8, !9, i64 16}
!12 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !13, i64 0}
!13 = !{!"any pointer", !9, i64 0}
!14 = !{!"long", !9, i64 0}
!15 = !{!"_ZTSSt6bitsetILm131EE", !16, i64 0}
!16 = !{!"_ZTSSt12_Base_bitsetILm3EE", !9, i64 0}
!17 = !{!6, !13, i64 80}


; Effective O3 passes: GlobalOptPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass