; LLVM IR from niessner/Matterport :: code/gaps/pkgs/R3Shapes (R3TriangleArray)

; 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.R3Point = type { [3 x double] }
%class.R3TriangleArray = type { %class.R3Surface, %class.RNArray, %class.RNArray.0, %class.R3Box }
%class.R3Surface = type { %class.R3Shape }
%class.R3Shape = type { ptr }
%class.RNArray = type { %class.RNVArray }
%class.RNVArray = type { ptr, i32, i32 }
%class.RNArray.0 = type { %class.RNVArray }
%class.R3Box = type { %class.R3Solid, %class.R3Point, %class.R3Point }
%class.R3Solid = type { %class.R3Shape }

@R3null_point = external global %class.R3Point, align 8

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZNK7RNArrayIP16R3TriangleVertexE3KthEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) #2 align 2

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNK16R3TriangleVertex8PositionEv(ptr noundef nonnull align 8 dereferenceable(100)) #1 align 2

declare void @_ZN7R3PointC1ERKS_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3

declare noundef double @_Z17R3SquaredDistanceRK7R3PointS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #3

declare noundef nonnull align 8 dereferenceable(24) ptr @_ZN7R3PointaSERKS_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) #3

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK15R3TriangleArray13FurthestPointERK7R3Point(ptr dead_on_unwind noalias writable sret(%class.R3Point) align 8 %0, ptr noundef nonnull align 8 dereferenceable(96) %1, ptr noundef nonnull align 8 dereferenceable(24) %2) unnamed_addr #2 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca double, align 8
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca %class.R3Point, align 8
  %11 = alloca double, align 8
  store ptr %0, ptr %4, align 8
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %12 = load ptr, ptr %5, align 8
  call void @_ZN7R3PointC1ERKS_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) @R3null_point)
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  store double 0.000000e+00, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #4
  store i32 0, ptr %8, align 4, !tbaa !11
  br label %13

13:                                               ; preds = %34, %3
  %14 = load i32, ptr %8, align 4, !tbaa !11
  %15 = getelementptr inbounds %class.R3TriangleArray, ptr %12, i32 0, i32 1
  %16 = call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %15)
  %17 = icmp slt i32 %14, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  br label %37

19:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %20 = getelementptr inbounds %class.R3TriangleArray, ptr %12, i32 0, i32 1
  %21 = load i32, ptr %8, align 4, !tbaa !11
  %22 = call noundef ptr @_ZNK7RNArrayIP16R3TriangleVertexE3KthEi(ptr noundef nonnull align 8 dereferenceable(16) %20, i32 noundef %21)
  store ptr %22, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr %10) #4
  %23 = load ptr, ptr %9, align 8, !tbaa !5
  %24 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNK16R3TriangleVertex8PositionEv(ptr noundef nonnull align 8 dereferenceable(100) %23)
  call void @_ZN7R3PointC1ERKS_(ptr noundef nonnull align 8 dereferenceable(24) %10, ptr noundef nonnull align 8 dereferenceable(24) %24)
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  %25 = load ptr, ptr %6, align 8, !tbaa !5
  %26 = call noundef double @_Z17R3SquaredDistanceRK7R3PointS1_(ptr noundef nonnull align 8 dereferenceable(24) %10, ptr noundef nonnull align 8 dereferenceable(24) %25)
  store double %26, ptr %11, align 8, !tbaa !9
  %27 = load double, ptr %11, align 8, !tbaa !9
  %28 = load double, ptr %7, align 8, !tbaa !9
  %29 = fcmp ogt double %27, %28
  br i1 %29, label %30, label %33

30:                                               ; preds = %19
  %31 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZN7R3PointaSERKS_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %10)
  %32 = load double, ptr %11, align 8, !tbaa !9
  store double %32, ptr %7, align 8, !tbaa !9
  br label %33

33:                                               ; preds = %30, %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  br label %34

34:                                               ; preds = %33
  %35 = load i32, ptr %8, align 4, !tbaa !11
  %36 = add nsw i32 %35, 1
  store i32 %36, ptr %8, align 4, !tbaa !11
  br label %13, !llvm.loop !13

37:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 #3 = { "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 #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, !10, i64 0}
!10 = !{!"double", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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.R3Point = type { [3 x double] }

@R3null_point = external global %class.R3Point, align 8

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZNK7RNArrayIP16R3TriangleVertexE3KthEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #2 align 2

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

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(24) ptr @_ZNK16R3TriangleVertex8PositionEv(ptr noundef nonnull align 8 dereferenceable(100)) local_unnamed_addr #1 align 2

declare void @_ZN7R3PointC1ERKS_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3

declare noundef double @_Z17R3SquaredDistanceRK7R3PointS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3

declare noundef nonnull align 8 dereferenceable(24) ptr @_ZN7R3PointaSERKS_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK15R3TriangleArray13FurthestPointERK7R3Point(ptr dead_on_unwind noalias nonnull writable sret(%class.R3Point) align 8 %0, ptr noundef nonnull align 8 dereferenceable(96) %1, ptr noundef nonnull align 8 dereferenceable(24) %2) unnamed_addr #2 align 2 {
  %4 = alloca %class.R3Point, align 8
  tail call void @_ZN7R3PointC1ERKS_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) @R3null_point)
  %5 = getelementptr inbounds i8, ptr %1, i64 8
  %6 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %5)
  %7 = icmp sgt i32 %6, 0
  br i1 %7, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %14, %3
  ret void

.lr.ph:                                           ; preds = %3, %14
  %.011 = phi double [ %.1, %14 ], [ 0.000000e+00, %3 ]
  %.0810 = phi i32 [ %15, %14 ], [ 0, %3 ]
  %8 = call noundef ptr @_ZNK7RNArrayIP16R3TriangleVertexE3KthEi(ptr noundef nonnull align 8 dereferenceable(16) %5, i32 noundef %.0810)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #4
  %9 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNK16R3TriangleVertex8PositionEv(ptr noundef nonnull align 8 dereferenceable(100) %8)
  call void @_ZN7R3PointC1ERKS_(ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 8 dereferenceable(24) %9)
  %10 = call noundef double @_Z17R3SquaredDistanceRK7R3PointS1_(ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 8 dereferenceable(24) %2)
  %11 = fcmp ogt double %10, %.011
  br i1 %11, label %12, label %14

12:                                               ; preds = %.lr.ph
  %13 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZN7R3PointaSERKS_(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(24) %4)
  br label %14

14:                                               ; preds = %12, %.lr.ph
  %.1 = phi double [ %10, %12 ], [ %.011, %.lr.ph ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #4
  %15 = add nuw nsw i32 %.0810, 1
  %16 = call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %5)
  %17 = icmp slt i32 %15, %16
  br i1 %17, label %.lr.ph, label %._crit_edge, !llvm.loop !5
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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 #3 = { "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 #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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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