; LLVM IR from microsoft/Multiverso :: src/net/allreduce_engine.ll (ZN10multiverso15AllreduceEngineD2Ev)

; 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.multiverso::AllreduceEngine" = type <{ i32, i32, ptr, %"class.multiverso::BruckMap", %"class.multiverso::RecursiveHalvingMap", ptr, ptr, ptr, i32, [4 x i8] }>
%"class.multiverso::BruckMap" = type { i32, %"class.std::vector", %"class.std::vector" }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.multiverso::RecursiveHalvingMap" = type { i32, i32, i32, %"class.std::vector", %"class.std::vector", %"class.std::vector", %"class.std::vector", %"class.std::vector" }

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN10multiverso8BruckMapD2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN10multiverso19RecursiveHalvingMapD2Ev(ptr noundef nonnull align 8 dereferenceable(136)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN10multiverso15AllreduceEngineD2Ev(ptr noundef nonnull align 8 dereferenceable(236) %0) unnamed_addr #1 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %"class.multiverso::AllreduceEngine", ptr %3, i32 0, i32 5
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %13

7:                                                ; preds = %1
  %8 = getelementptr inbounds %"class.multiverso::AllreduceEngine", ptr %3, i32 0, i32 5
  %9 = load ptr, ptr %8, align 8, !tbaa !9
  %10 = icmp eq ptr %9, null
  br i1 %10, label %12, label %11

11:                                               ; preds = %7
  call void @_ZdaPv(ptr noundef %9) #3
  br label %12

12:                                               ; preds = %11, %7
  br label %13

13:                                               ; preds = %12, %1
  %14 = getelementptr inbounds %"class.multiverso::AllreduceEngine", ptr %3, i32 0, i32 6
  %15 = load ptr, ptr %14, align 8, !tbaa !19
  %16 = icmp ne ptr %15, null
  br i1 %16, label %17, label %23

17:                                               ; preds = %13
  %18 = getelementptr inbounds %"class.multiverso::AllreduceEngine", ptr %3, i32 0, i32 6
  %19 = load ptr, ptr %18, align 8, !tbaa !19
  %20 = icmp eq ptr %19, null
  br i1 %20, label %22, label %21

21:                                               ; preds = %17
  call void @_ZdaPv(ptr noundef %19) #3
  br label %22

22:                                               ; preds = %21, %17
  br label %23

23:                                               ; preds = %22, %13
  %24 = getelementptr inbounds %"class.multiverso::AllreduceEngine", ptr %3, i32 0, i32 7
  %25 = load ptr, ptr %24, align 8, !tbaa !20
  %26 = icmp ne ptr %25, null
  br i1 %26, label %27, label %33

27:                                               ; preds = %23
  %28 = getelementptr inbounds %"class.multiverso::AllreduceEngine", ptr %3, i32 0, i32 7
  %29 = load ptr, ptr %28, align 8, !tbaa !20
  %30 = icmp eq ptr %29, null
  br i1 %30, label %32, label %31

31:                                               ; preds = %27
  call void @_ZdaPv(ptr noundef %29) #3
  br label %32

32:                                               ; preds = %31, %27
  br label %33

33:                                               ; preds = %32, %23
  %34 = getelementptr inbounds %"class.multiverso::AllreduceEngine", ptr %3, i32 0, i32 4
  call void @_ZN10multiverso19RecursiveHalvingMapD2Ev(ptr noundef nonnull align 8 dereferenceable(136) %34) #4
  %35 = getelementptr inbounds %"class.multiverso::AllreduceEngine", ptr %3, i32 0, i32 3
  call void @_ZN10multiverso8BruckMapD2Ev(ptr noundef nonnull align 8 dereferenceable(56) %35) #4
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) #2

attributes #0 = { inlinehint 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 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 = { nobuiltin 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 #3 = { builtin nounwind }
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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 208}
!10 = !{!"_ZTSN10multiverso15AllreduceEngineE", !11, i64 0, !11, i64 4, !6, i64 8, !12, i64 16, !17, i64 72, !6, i64 208, !6, i64 216, !6, i64 224, !11, i64 232}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_ZTSN10multiverso8BruckMapE", !11, i64 0, !13, i64 8, !13, i64 32}
!13 = !{!"_ZTSSt6vectorIiSaIiEE", !14, i64 0}
!14 = !{!"_ZTSSt12_Vector_baseIiSaIiEE", !15, i64 0}
!15 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE12_Vector_implE", !16, i64 0}
!16 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE17_Vector_impl_dataE", !6, i64 0, !6, i64 8, !6, i64 16}
!17 = !{!"_ZTSN10multiverso19RecursiveHalvingMapE", !11, i64 0, !18, i64 4, !11, i64 8, !13, i64 16, !13, i64 40, !13, i64 64, !13, i64 88, !13, i64 112}
!18 = !{!"_ZTSN10multiverso24RecursiveHalvingNodeTypeE", !7, i64 0}
!19 = !{!10, !6, i64 216}
!20 = !{!10, !6, i64 224}


; 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: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN10multiverso8BruckMapD2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN10multiverso19RecursiveHalvingMapD2Ev(ptr noundef nonnull align 8 dereferenceable(136)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN10multiverso15AllreduceEngineD2Ev(ptr noundef nonnull align 8 dereferenceable(236) %0) unnamed_addr #1 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 208
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %5, label %4

4:                                                ; preds = %1
  tail call void @_ZdaPv(ptr noundef nonnull %3) #3
  br label %5

5:                                                ; preds = %4, %1
  %6 = getelementptr inbounds i8, ptr %0, i64 216
  %7 = load ptr, ptr %6, align 8, !tbaa !18
  %.not3 = icmp eq ptr %7, null
  br i1 %.not3, label %9, label %8

8:                                                ; preds = %5
  tail call void @_ZdaPv(ptr noundef nonnull %7) #3
  br label %9

9:                                                ; preds = %8, %5
  %10 = getelementptr inbounds i8, ptr %0, i64 224
  %11 = load ptr, ptr %10, align 8, !tbaa !19
  %.not4 = icmp eq ptr %11, null
  br i1 %.not4, label %13, label %12

12:                                               ; preds = %9
  tail call void @_ZdaPv(ptr noundef nonnull %11) #3
  br label %13

13:                                               ; preds = %12, %9
  %14 = getelementptr inbounds i8, ptr %0, i64 72
  tail call void @_ZN10multiverso19RecursiveHalvingMapD2Ev(ptr noundef nonnull align 8 dereferenceable(136) %14) #4
  %15 = getelementptr inbounds i8, ptr %0, i64 16
  tail call void @_ZN10multiverso8BruckMapD2Ev(ptr noundef nonnull align 8 dereferenceable(56) %15) #4
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdaPv(ptr noundef) local_unnamed_addr #2

attributes #0 = { inlinehint 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 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 = { nobuiltin 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 #3 = { builtin nounwind }
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, !10, i64 208}
!6 = !{!"_ZTSN10multiverso15AllreduceEngineE", !7, i64 0, !7, i64 4, !10, i64 8, !11, i64 16, !16, i64 72, !10, i64 208, !10, i64 216, !10, i64 224, !7, i64 232}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"_ZTSN10multiverso8BruckMapE", !7, i64 0, !12, i64 8, !12, i64 32}
!12 = !{!"_ZTSSt6vectorIiSaIiEE", !13, i64 0}
!13 = !{!"_ZTSSt12_Vector_baseIiSaIiEE", !14, i64 0}
!14 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE12_Vector_implE", !15, i64 0}
!15 = !{!"_ZTSNSt12_Vector_baseIiSaIiEE17_Vector_impl_dataE", !10, i64 0, !10, i64 8, !10, i64 16}
!16 = !{!"_ZTSN10multiverso19RecursiveHalvingMapE", !7, i64 0, !17, i64 4, !7, i64 8, !12, i64 16, !12, i64 40, !12, i64 64, !12, i64 88, !12, i64 112}
!17 = !{!"_ZTSN10multiverso24RecursiveHalvingNodeTypeE", !8, i64 0}
!18 = !{!6, !10, i64 216}
!19 = !{!6, !10, i64 224}


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