; LLVM IR from niessner/Matterport :: code/gaps/pkgs/R2Shapes/R2Align.ll (Z17R2AverageDistanceRK7R2PointiPS_PKd)

; 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.RNArray = type { %class.RNVArray }
%class.RNVArray = type { ptr, i32, i32 }
%class.R2Point = type { [2 x double] }

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

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

; Function Attrs: mustprogress uwtable
declare dso_local noundef double @_Z17R2AverageDistanceRK7R2PointRK7RNArrayIPS_EPKd(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) #1

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7RNArrayIP7R2PointEC2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZN7RNArrayIP7R2PointE6InsertES1_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) #1 align 2

; Function Attrs: nounwind
declare void @_ZN8RNVArrayD2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local noundef double @_Z17R2AverageDistanceRK7R2PointiPS_PKd(ptr noundef nonnull align 8 dereferenceable(16) %0, i32 noundef %1, ptr noundef %2, ptr noundef %3) #1 personality ptr @__gxx_personality_v0 {
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca %class.RNArray, align 8
  %10 = alloca i32, align 4
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 16, ptr %9) #3
  call void @_ZN7RNArrayIP7R2PointEC2Ev(ptr noundef nonnull align 8 dereferenceable(16) %9)
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %13

13:                                               ; preds = %25, %4
  %14 = load i32, ptr %10, align 4, !tbaa !9
  %15 = load i32, ptr %6, align 4, !tbaa !9
  %16 = icmp slt i32 %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  br label %32

18:                                               ; preds = %13
  %19 = load ptr, ptr %7, align 8, !tbaa !5
  %20 = load i32, ptr %10, align 4, !tbaa !9
  %21 = sext i32 %20 to i64
  %22 = getelementptr inbounds %class.R2Point, ptr %19, i64 %21
  %23 = invoke noundef ptr @_ZN7RNArrayIP7R2PointE6InsertES1_(ptr noundef nonnull align 8 dereferenceable(16) %9, ptr noundef %22)
          to label %24 unwind label %28

24:                                               ; preds = %18
  br label %25

25:                                               ; preds = %24
  %26 = load i32, ptr %10, align 4, !tbaa !9
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %10, align 4, !tbaa !9
  br label %13, !llvm.loop !11

28:                                               ; preds = %18
  %29 = landingpad { ptr, i32 }
          cleanup
  %30 = extractvalue { ptr, i32 } %29, 0
  store ptr %30, ptr %11, align 8
  %31 = extractvalue { ptr, i32 } %29, 1
  store i32 %31, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  br label %41

32:                                               ; preds = %17
  %33 = load ptr, ptr %5, align 8, !tbaa !5
  %34 = load ptr, ptr %8, align 8, !tbaa !5
  %35 = invoke noundef double @_Z17R2AverageDistanceRK7R2PointRK7RNArrayIPS_EPKd(ptr noundef nonnull align 8 dereferenceable(16) %33, ptr noundef nonnull align 8 dereferenceable(16) %9, ptr noundef %34)
          to label %36 unwind label %37

36:                                               ; preds = %32
  call void @_ZN8RNVArrayD2Ev(ptr noundef nonnull align 8 dereferenceable(16) %9) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr %9) #3
  ret double %35

37:                                               ; preds = %32
  %38 = landingpad { ptr, i32 }
          cleanup
  %39 = extractvalue { ptr, i32 } %38, 0
  store ptr %39, ptr %11, align 8
  %40 = extractvalue { ptr, i32 } %38, 1
  store i32 %40, ptr %12, align 4
  br label %41

41:                                               ; preds = %37, %28
  call void @_ZN8RNVArrayD2Ev(ptr noundef nonnull align 8 dereferenceable(16) %9) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr %9) #3
  br label %42

42:                                               ; preds = %41
  %43 = load ptr, ptr %11, align 8
  %44 = load i32, ptr %12, align 4
  %45 = insertvalue { ptr, i32 } poison, ptr %43, 0
  %46 = insertvalue { ptr, i32 } %45, i32 %44, 1
  resume { ptr, i32 } %46
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 = { 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 = !{!"int", !7, 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.RNArray = type { %class.RNVArray }
%class.RNVArray = type { ptr, i32, i32 }
%class.R2Point = type { [2 x double] }

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

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

; Function Attrs: mustprogress uwtable
declare dso_local noundef double @_Z17R2AverageDistanceRK7R2PointRK7RNArrayIPS_EPKd(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) local_unnamed_addr #1

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7RNArrayIP7R2PointEC2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZN7RNArrayIP7R2PointE6InsertES1_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) local_unnamed_addr #1 align 2

; Function Attrs: nounwind
declare void @_ZN8RNVArrayD2Ev(ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local noundef double @_Z17R2AverageDistanceRK7R2PointiPS_PKd(ptr noundef nonnull align 8 dereferenceable(16) %0, i32 noundef %1, ptr noundef %2, ptr noundef %3) local_unnamed_addr #1 personality ptr @__gxx_personality_v0 {
  %5 = alloca %class.RNArray, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %5) #3
  call void @_ZN7RNArrayIP7R2PointEC2Ev(ptr noundef nonnull align 8 dereferenceable(16) %5)
  %6 = icmp sgt i32 %1, 0
  br i1 %6, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %4
  %wide.trip.count = zext nneg i32 %1 to i64
  br label %.lr.ph

._crit_edge:                                      ; preds = %10, %4
  %7 = invoke noundef double @_Z17R2AverageDistanceRK7R2PointRK7RNArrayIPS_EPKd(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef %3)
          to label %13 unwind label %14

.lr.ph:                                           ; preds = %.lr.ph.preheader, %10
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %10 ]
  %8 = getelementptr inbounds %class.R2Point, ptr %2, i64 %indvars.iv
  %9 = invoke noundef ptr @_ZN7RNArrayIP7R2PointE6InsertES1_(ptr noundef nonnull align 8 dereferenceable(16) %5, ptr noundef %8)
          to label %10 unwind label %11

10:                                               ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5

11:                                               ; preds = %.lr.ph
  %12 = landingpad { ptr, i32 }
          cleanup
  br label %16

13:                                               ; preds = %._crit_edge
  call void @_ZN8RNVArrayD2Ev(ptr noundef nonnull align 8 dereferenceable(16) %5) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %5) #3
  ret double %7

14:                                               ; preds = %._crit_edge
  %15 = landingpad { ptr, i32 }
          cleanup
  br label %16

16:                                               ; preds = %14, %11
  %.pn = phi { ptr, i32 } [ %12, %11 ], [ %15, %14 ]
  call void @_ZN8RNVArrayD2Ev(ptr noundef nonnull align 8 dereferenceable(16) %5) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %5) #3
  resume { ptr, i32 } %.pn
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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