; LLVM IR from mickypaganini/SSI2016-jet-clustering :: spartyjet-4.0.2_mac/External/fastjet-3.0.0/src/Voronoi.ll (ZN7fastjet5scompEPKvS1_)

; 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::VPoint" = type { double, double }

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

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_ZN7fastjet5scompEPKvS1_(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %9, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  store ptr %10, ptr %7, align 8, !tbaa !5
  %11 = load ptr, ptr %6, align 8, !tbaa !5
  %12 = getelementptr inbounds %"class.fastjet::VPoint", ptr %11, i32 0, i32 1
  %13 = load double, ptr %12, align 8, !tbaa !9
  %14 = load ptr, ptr %7, align 8, !tbaa !5
  %15 = getelementptr inbounds %"class.fastjet::VPoint", ptr %14, i32 0, i32 1
  %16 = load double, ptr %15, align 8, !tbaa !9
  %17 = fcmp olt double %13, %16
  br i1 %17, label %18, label %19

18:                                               ; preds = %2
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %47

19:                                               ; preds = %2
  %20 = load ptr, ptr %6, align 8, !tbaa !5
  %21 = getelementptr inbounds %"class.fastjet::VPoint", ptr %20, i32 0, i32 1
  %22 = load double, ptr %21, align 8, !tbaa !9
  %23 = load ptr, ptr %7, align 8, !tbaa !5
  %24 = getelementptr inbounds %"class.fastjet::VPoint", ptr %23, i32 0, i32 1
  %25 = load double, ptr %24, align 8, !tbaa !9
  %26 = fcmp ogt double %22, %25
  br i1 %26, label %27, label %28

27:                                               ; preds = %19
  store i32 1, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %47

28:                                               ; preds = %19
  %29 = load ptr, ptr %6, align 8, !tbaa !5
  %30 = getelementptr inbounds %"class.fastjet::VPoint", ptr %29, i32 0, i32 0
  %31 = load double, ptr %30, align 8, !tbaa !12
  %32 = load ptr, ptr %7, align 8, !tbaa !5
  %33 = getelementptr inbounds %"class.fastjet::VPoint", ptr %32, i32 0, i32 0
  %34 = load double, ptr %33, align 8, !tbaa !12
  %35 = fcmp olt double %31, %34
  br i1 %35, label %36, label %37

36:                                               ; preds = %28
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %47

37:                                               ; preds = %28
  %38 = load ptr, ptr %6, align 8, !tbaa !5
  %39 = getelementptr inbounds %"class.fastjet::VPoint", ptr %38, i32 0, i32 0
  %40 = load double, ptr %39, align 8, !tbaa !12
  %41 = load ptr, ptr %7, align 8, !tbaa !5
  %42 = getelementptr inbounds %"class.fastjet::VPoint", ptr %41, i32 0, i32 0
  %43 = load double, ptr %42, align 8, !tbaa !12
  %44 = fcmp ogt double %40, %43
  br i1 %44, label %45, label %46

45:                                               ; preds = %37
  store i32 1, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %47

46:                                               ; preds = %37
  store i32 0, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %47

47:                                               ; preds = %46, %45, %36, %27, %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  %48 = load i32, ptr %3, align 4
  ret i32 %48
}

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

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, !11, i64 8}
!10 = !{!"_ZTSN7fastjet6VPointE", !11, i64 0, !11, i64 8}
!11 = !{!"double", !7, i64 0}
!12 = !{!10, !11, 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) uwtable
define dso_local noundef range(i32 -1, 2) i32 @_ZN7fastjet5scompEPKvS1_(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = load double, ptr %3, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %1, i64 8
  %6 = load double, ptr %5, align 8, !tbaa !5
  %7 = fcmp olt double %4, %6
  br i1 %7, label %16, label %8

8:                                                ; preds = %2
  %9 = fcmp ogt double %4, %6
  br i1 %9, label %16, label %10

10:                                               ; preds = %8
  %11 = load double, ptr %0, align 8, !tbaa !10
  %12 = load double, ptr %1, align 8, !tbaa !10
  %13 = fcmp olt double %11, %12
  br i1 %13, label %16, label %14

14:                                               ; preds = %10
  %15 = fcmp ogt double %11, %12
  %. = zext i1 %15 to i32
  br label %16

16:                                               ; preds = %14, %10, %8, %2
  %.0 = phi i32 [ -1, %2 ], [ 1, %8 ], [ -1, %10 ], [ %., %14 ]
  ret i32 %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) 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, !7, i64 8}
!6 = !{!"_ZTSN7fastjet6VPointE", !7, i64 0, !7, i64 8}
!7 = !{!"double", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!6, !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass