; 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
@RN_INFINITY = external global double, 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: 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 ptr @_ZNK7RNArrayIP10R3TriangleE3KthEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) #2 align 2

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

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK15R3TriangleArray12ClosestPointERK7R3Point(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
  %13 = load double, ptr @RN_INFINITY, align 8, !tbaa !9
  %14 = load double, ptr @RN_INFINITY, align 8, !tbaa !9
  %15 = fmul double %13, %14
  store double %15, 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 %16

16:                                               ; preds = %40, %3
  %17 = load i32, ptr %8, align 4, !tbaa !11
  %18 = getelementptr inbounds %class.R3TriangleArray, ptr %12, i32 0, i32 2
  %19 = call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %18)
  %20 = icmp slt i32 %17, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #4
  br label %43

22:                                               ; preds = %16
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %23 = getelementptr inbounds %class.R3TriangleArray, ptr %12, i32 0, i32 2
  %24 = load i32, ptr %8, align 4, !tbaa !11
  %25 = call noundef ptr @_ZNK7RNArrayIP10R3TriangleE3KthEi(ptr noundef nonnull align 8 dereferenceable(16) %23, i32 noundef %24)
  store ptr %25, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 24, ptr %10) #4
  %26 = load ptr, ptr %9, align 8, !tbaa !5
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = load ptr, ptr %26, align 8, !tbaa !13
  %29 = getelementptr inbounds ptr, ptr %28, i64 14
  %30 = load ptr, ptr %29, align 8
  call void %30(ptr dead_on_unwind writable sret(%class.R3Point) align 8 %10, ptr noundef nonnull align 8 dereferenceable(132) %26, ptr noundef nonnull align 8 dereferenceable(24) %27)
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #4
  %31 = load ptr, ptr %6, align 8, !tbaa !5
  %32 = call noundef double @_Z17R3SquaredDistanceRK7R3PointS1_(ptr noundef nonnull align 8 dereferenceable(24) %10, ptr noundef nonnull align 8 dereferenceable(24) %31)
  store double %32, ptr %11, align 8, !tbaa !9
  %33 = load double, ptr %11, align 8, !tbaa !9
  %34 = load double, ptr %7, align 8, !tbaa !9
  %35 = fcmp olt double %33, %34
  br i1 %35, label %36, label %39

36:                                               ; preds = %22
  %37 = 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)
  %38 = load double, ptr %11, align 8, !tbaa !9
  store double %38, ptr %7, align 8, !tbaa !9
  br label %39

39:                                               ; preds = %36, %22
  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 %40

40:                                               ; preds = %39
  %41 = load i32, ptr %8, align 4, !tbaa !11
  %42 = add nsw i32 %41, 1
  store i32 %42, ptr %8, align 4, !tbaa !11
  br label %16, !llvm.loop !15

43:                                               ; preds = %21
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  ret void
}

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

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 = !{!14, !14, i64 0}
!14 = !{!"vtable pointer", !8, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"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
@RN_INFINITY = external local_unnamed_addr global double, 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 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 ptr @_ZNK7RNArrayIP10R3TriangleE3KthEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #2 align 2

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

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK15R3TriangleArray12ClosestPointERK7R3Point(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 = load double, ptr @RN_INFINITY, align 8, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %1, i64 24
  %7 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %6)
  %8 = icmp sgt i32 %7, 0
  br i1 %8, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %3
  %9 = fmul double %5, %5
  br label %.lr.ph

._crit_edge:                                      ; preds = %18, %3
  ret void

.lr.ph:                                           ; preds = %.lr.ph.preheader, %18
  %.012 = phi double [ %.1, %18 ], [ %9, %.lr.ph.preheader ]
  %.0911 = phi i32 [ %19, %18 ], [ 0, %.lr.ph.preheader ]
  %10 = call noundef ptr @_ZNK7RNArrayIP10R3TriangleE3KthEi(ptr noundef nonnull align 8 dereferenceable(16) %6, i32 noundef %.0911)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %4) #4
  %11 = load ptr, ptr %10, align 8, !tbaa !9
  %12 = getelementptr inbounds i8, ptr %11, i64 112
  %13 = load ptr, ptr %12, align 8
  call void %13(ptr dead_on_unwind nonnull writable sret(%class.R3Point) align 8 %4, ptr noundef nonnull align 8 dereferenceable(132) %10, ptr noundef nonnull align 8 dereferenceable(24) %2)
  %14 = call noundef double @_Z17R3SquaredDistanceRK7R3PointS1_(ptr noundef nonnull align 8 dereferenceable(24) %4, ptr noundef nonnull align 8 dereferenceable(24) %2)
  %15 = fcmp olt double %14, %.012
  br i1 %15, label %16, label %18

16:                                               ; preds = %.lr.ph
  %17 = 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 %18

18:                                               ; preds = %16, %.lr.ph
  %.1 = phi double [ %14, %16 ], [ %.012, %.lr.ph ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %4) #4
  %19 = add nuw nsw i32 %.0911, 1
  %20 = call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %6)
  %21 = icmp slt i32 %19, %20
  br i1 %21, label %.lr.ph, label %._crit_edge, !llvm.loop !11
}

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

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 = !{!6, !6, i64 0}
!6 = !{!"double", !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"}


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