; LLVM IR from conradlee/network-community-benchmark :: comm_algs/GCECommunityFinder/Community_Finder.ll (ZN16Community_FinderD2Ev)

; 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.__gnu_cxx::__normal_iterator" = type { ptr }
%class.Community_Finder = type { ptr, %"class.std::vector.7", %"class.std::vector.12" }
%"class.std::vector.7" = type { %"struct.std::_Vector_base.8" }
%"struct.std::_Vector_base.8" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::vector<int>, std::allocator<std::vector<int>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::vector.12" = type { %"struct.std::_Vector_base.13" }
%"struct.std::_Vector_base.13" = type { %"struct.std::_Vector_base<Seed *, std::allocator<Seed *>>::_Vector_impl" }
%"struct.std::_Vector_base<Seed *, std::allocator<Seed *>>::_Vector_impl" = type { %"struct.std::_Vector_base<Seed *, std::allocator<Seed *>>::_Vector_impl_data" }
%"struct.std::_Vector_base<Seed *, std::allocator<Seed *>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@_ZTV16Community_Finder = external dso_local unnamed_addr constant { [4 x ptr] }, align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIP4SeedSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN16Community_FinderD2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) unnamed_addr #0 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %4 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8
  store ptr getelementptr inbounds inrange(-16, 16) ({ [4 x ptr] }, ptr @_ZTV16Community_Finder, i32 0, i32 0, i32 2), ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %6 = getelementptr inbounds %class.Community_Finder, ptr %5, i32 0, i32 2
  %7 = call ptr @_ZNSt6vectorIP4SeedSaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %6) #3
  %8 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %3, i32 0, i32 0
  store ptr %7, ptr %8, align 8
  br label %9

9:                                                ; preds = %24, %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %10 = getelementptr inbounds %class.Community_Finder, ptr %5, i32 0, i32 2
  %11 = call ptr @_ZNSt6vectorIP4SeedSaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %10) #3
  %12 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %4, i32 0, i32 0
  store ptr %11, ptr %12, align 8
  %13 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPP4SeedSt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br i1 %13, label %15, label %14

14:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %26

15:                                               ; preds = %9
  %16 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPP4SeedSt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  %17 = load ptr, ptr %16, align 8, !tbaa !5
  %18 = icmp eq ptr %17, null
  br i1 %18, label %23, label %19

19:                                               ; preds = %15
  %20 = load ptr, ptr %17, align 8, !tbaa !9
  %21 = getelementptr inbounds ptr, ptr %20, i64 1
  %22 = load ptr, ptr %21, align 8
  call void %22(ptr noundef nonnull align 8 dereferenceable(152) %17) #3
  br label %23

23:                                               ; preds = %19, %15
  br label %24

24:                                               ; preds = %23
  %25 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPP4SeedSt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  br label %9, !llvm.loop !11

26:                                               ; preds = %14
  %27 = getelementptr inbounds %class.Community_Finder, ptr %5, i32 0, i32 2
  call void @_ZNSt6vectorIP4SeedSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %27) #3
  %28 = getelementptr inbounds %class.Community_Finder, ptr %5, i32 0, i32 1
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %28) #3
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIP4SeedSaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPP4SeedSt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIP4SeedSaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPP4SeedSt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPP4SeedSt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #0 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #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, !10, i64 0}
!10 = !{!"vtable pointer", !8, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; 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.__gnu_cxx::__normal_iterator" = type { ptr }

@_ZTV16Community_Finder = external dso_local unnamed_addr constant { [4 x ptr] }, align 8

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIP4SeedSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN16Community_FinderD2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) unnamed_addr #0 align 2 {
  %2 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %3 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  store ptr getelementptr inbounds inrange(-16, 16) (i8, ptr @_ZTV16Community_Finder, i64 16), ptr %0, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %4 = getelementptr inbounds i8, ptr %0, i64 32
  %5 = tail call ptr @_ZNSt6vectorIP4SeedSaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  store ptr %5, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %6 = tail call ptr @_ZNSt6vectorIP4SeedSaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  store ptr %6, ptr %3, align 8
  %7 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPP4SeedSt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  br i1 %7, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %16, %1
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  call void @_ZNSt6vectorIP4SeedSaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  %8 = getelementptr inbounds i8, ptr %0, i64 8
  call void @_ZNSt6vectorIS_IiSaIiEESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %8) #3
  ret void

.lr.ph:                                           ; preds = %1, %16
  %9 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPP4SeedSt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  %10 = load ptr, ptr %9, align 8, !tbaa !8
  %11 = icmp eq ptr %10, null
  br i1 %11, label %16, label %12

12:                                               ; preds = %.lr.ph
  %13 = load ptr, ptr %10, align 8, !tbaa !5
  %14 = getelementptr inbounds i8, ptr %13, i64 8
  %15 = load ptr, ptr %14, align 8
  call void %15(ptr noundef nonnull align 8 dereferenceable(152) %10) #3
  br label %16

16:                                               ; preds = %.lr.ph, %12
  %17 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPP4SeedSt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %18 = call ptr @_ZNSt6vectorIP4SeedSaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %4) #3
  store ptr %18, ptr %3, align 8
  %19 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPP4SeedSt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8) %2, ptr noundef nonnull align 8 dereferenceable(8) %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  br i1 %19, label %.lr.ph, label %._crit_edge, !llvm.loop !11
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIP4SeedSaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPP4SeedSt6vectorIS2_SaIS2_EEEEbRKNS_17__normal_iteratorIT_T0_EESC_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorIP4SeedSaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPP4SeedSt6vectorIS2_SaIS2_EEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPP4SeedSt6vectorIS2_SaIS2_EEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #0 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"any pointer", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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