; LLVM IR from mickypaganini/SSI2016-jet-clustering :: spartyjet-4.0.2_mac/External/fastjet-3.0.0/src (Voronoi)

; 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.fastjet::VoronoiDiagramGenerator" = type { ptr, i32, ptr, %"class.fastjet::Freelist", ptr, ptr, i32, i32, i32, i32, i32, double, double, double, double, double, double, ptr, i32, i32, i32, i32, %"class.fastjet::Freelist", ptr, i32, %"class.fastjet::Freelist", i32, ptr, i32, i32, i32, i32, double, double, double, double, double, i32, double, double, double, double, ptr, ptr, ptr, ptr, double }
%"class.fastjet::Freelist" = type { ptr, i32 }
%"class.fastjet::GraphEdge" = type { double, double, double, double, i32, i32, ptr }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN7fastjet23VoronoiDiagramGenerator12cleanupEdgesEv(ptr noundef nonnull align 8 dereferenceable(352) %0) #0 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
  store ptr null, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store ptr null, ptr %4, align 8, !tbaa !5
  %6 = getelementptr inbounds %"class.fastjet::VoronoiDiagramGenerator", ptr %5, i32 0, i32 44
  %7 = load ptr, ptr %6, align 8, !tbaa !9
  store ptr %7, ptr %4, align 8, !tbaa !5
  store ptr %7, ptr %3, align 8, !tbaa !5
  br label %8

8:                                                ; preds = %19, %1
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %11, label %20

11:                                               ; preds = %8
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  store ptr %12, ptr %4, align 8, !tbaa !5
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = getelementptr inbounds %"class.fastjet::GraphEdge", ptr %13, i32 0, i32 6
  %15 = load ptr, ptr %14, align 8, !tbaa !14
  store ptr %15, ptr %3, align 8, !tbaa !5
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = icmp eq ptr %16, null
  br i1 %17, label %19, label %18

18:                                               ; preds = %11
  call void @_ZdlPvm(ptr noundef %16, i64 noundef 48) #4
  br label %19

19:                                               ; preds = %18, %11
  br label %8, !llvm.loop !16

20:                                               ; preds = %8
  %21 = getelementptr inbounds %"class.fastjet::VoronoiDiagramGenerator", ptr %5, i32 0, i32 44
  store ptr null, ptr %21, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { 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 #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nounwind }
attributes #4 = { builtin 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 328}
!10 = !{!"_ZTSN7fastjet23VoronoiDiagramGeneratorE", !6, i64 0, !11, i64 8, !6, i64 16, !12, i64 24, !6, i64 40, !6, i64 48, !11, i64 56, !11, i64 60, !11, i64 64, !11, i64 68, !11, i64 72, !13, i64 80, !13, i64 88, !13, i64 96, !13, i64 104, !13, i64 112, !13, i64 120, !6, i64 128, !11, i64 136, !11, i64 140, !11, i64 144, !11, i64 148, !12, i64 152, !6, i64 168, !11, i64 176, !12, i64 184, !11, i64 200, !6, i64 208, !11, i64 216, !11, i64 220, !11, i64 224, !11, i64 228, !13, i64 232, !13, i64 240, !13, i64 248, !13, i64 256, !13, i64 264, !11, i64 272, !13, i64 280, !13, i64 288, !13, i64 296, !13, i64 304, !6, i64 312, !6, i64 320, !6, i64 328, !6, i64 336, !13, i64 344}
!11 = !{!"int", !7, i64 0}
!12 = !{!"_ZTSN7fastjet8FreelistE", !6, i64 0, !11, i64 8}
!13 = !{!"double", !7, i64 0}
!14 = !{!15, !6, i64 40}
!15 = !{!"_ZTSN7fastjet9GraphEdgeE", !13, i64 0, !13, i64 8, !13, i64 16, !13, i64 24, !11, i64 32, !11, i64 36, !6, i64 40}
!16 = distinct !{!16, !17}
!17 = !{!"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"

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN7fastjet23VoronoiDiagramGenerator12cleanupEdgesEv(ptr nocapture noundef nonnull align 8 dereferenceable(352) %0) local_unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 328
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %.not5 = icmp eq ptr %3, null
  br i1 %.not5, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.06 = phi ptr [ %5, %.lr.ph ], [ %3, %1 ]
  %4 = getelementptr inbounds i8, ptr %.06, i64 40
  %5 = load ptr, ptr %4, align 8, !tbaa !13
  tail call void @_ZdlPvm(ptr noundef nonnull %.06, i64 noundef 48) #2
  %.not = icmp eq ptr %5, null
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !15

._crit_edge:                                      ; preds = %.lr.ph, %1
  store ptr null, ptr %2, align 8, !tbaa !5
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #1

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 = { 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 #2 = { builtin 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, !7, i64 328}
!6 = !{!"_ZTSN7fastjet23VoronoiDiagramGeneratorE", !7, i64 0, !10, i64 8, !7, i64 16, !11, i64 24, !7, i64 40, !7, i64 48, !10, i64 56, !10, i64 60, !10, i64 64, !10, i64 68, !10, i64 72, !12, i64 80, !12, i64 88, !12, i64 96, !12, i64 104, !12, i64 112, !12, i64 120, !7, i64 128, !10, i64 136, !10, i64 140, !10, i64 144, !10, i64 148, !11, i64 152, !7, i64 168, !10, i64 176, !11, i64 184, !10, i64 200, !7, i64 208, !10, i64 216, !10, i64 220, !10, i64 224, !10, i64 228, !12, i64 232, !12, i64 240, !12, i64 248, !12, i64 256, !12, i64 264, !10, i64 272, !12, i64 280, !12, i64 288, !12, i64 296, !12, i64 304, !7, i64 312, !7, i64 320, !7, i64 328, !7, i64 336, !12, i64 344}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"_ZTSN7fastjet8FreelistE", !7, i64 0, !10, i64 8}
!12 = !{!"double", !8, i64 0}
!13 = !{!14, !7, i64 40}
!14 = !{!"_ZTSN7fastjet9GraphEdgeE", !12, i64 0, !12, i64 8, !12, i64 16, !12, i64 24, !10, i64 32, !10, i64 36, !7, i64 40}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}


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