; LLVM IR from niessner/Matterport :: code/gaps/pkgs/R3Shapes/R3TriangleArray.ll (ZN15R3TriangleArray6UpdateEv)

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

@R3null_box = external global %class.R3Box, 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: inlinehint mustprogress uwtable
declare dso_local void @_ZN16R3TriangleVertex13SetSharedFlagEv(ptr noundef nonnull align 8 dereferenceable(100)) #3 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

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN15R3TriangleArray6UpdateEv(ptr noundef nonnull align 8 dereferenceable(96) %0) unnamed_addr #2 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %7 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #5
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %19, %1
  %9 = load i32, ptr %3, align 4, !tbaa !9
  %10 = getelementptr inbounds %class.R3TriangleArray, ptr %7, i32 0, i32 1
  %11 = call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %10)
  %12 = icmp slt i32 %9, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #5
  br label %22

14:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  %15 = getelementptr inbounds %class.R3TriangleArray, ptr %7, i32 0, i32 1
  %16 = load i32, ptr %3, align 4, !tbaa !9
  %17 = call noundef ptr @_ZNK7RNArrayIP16R3TriangleVertexE3KthEi(ptr noundef nonnull align 8 dereferenceable(16) %15, i32 noundef %16)
  store ptr %17, ptr %4, align 8, !tbaa !5
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  call void @_ZN16R3TriangleVertex13SetSharedFlagEv(ptr noundef nonnull align 8 dereferenceable(100) %18)
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  br label %19

19:                                               ; preds = %14
  %20 = load i32, ptr %3, align 4, !tbaa !9
  %21 = add nsw i32 %20, 1
  store i32 %21, ptr %3, align 4, !tbaa !9
  br label %8, !llvm.loop !11

22:                                               ; preds = %13
  %23 = getelementptr inbounds %class.R3TriangleArray, ptr %7, i32 0, i32 3
  %24 = call noundef nonnull align 8 dereferenceable(56) ptr @_ZN5R3BoxaSERKS_(ptr noundef nonnull align 8 dereferenceable(56) %23, ptr noundef nonnull align 8 dereferenceable(56) @R3null_box)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %25

25:                                               ; preds = %38, %22
  %26 = load i32, ptr %5, align 4, !tbaa !9
  %27 = getelementptr inbounds %class.R3TriangleArray, ptr %7, i32 0, i32 1
  %28 = call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %27)
  %29 = icmp slt i32 %26, %28
  br i1 %29, label %31, label %30

30:                                               ; preds = %25
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  br label %41

31:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %32 = getelementptr inbounds %class.R3TriangleArray, ptr %7, i32 0, i32 1
  %33 = load i32, ptr %5, align 4, !tbaa !9
  %34 = call noundef ptr @_ZNK7RNArrayIP16R3TriangleVertexE3KthEi(ptr noundef nonnull align 8 dereferenceable(16) %32, i32 noundef %33)
  store ptr %34, ptr %6, align 8, !tbaa !5
  %35 = getelementptr inbounds %class.R3TriangleArray, ptr %7, i32 0, i32 3
  %36 = load ptr, ptr %6, align 8, !tbaa !5
  %37 = call noundef nonnull align 8 dereferenceable(24) ptr @_ZNK16R3TriangleVertex8PositionEv(ptr noundef nonnull align 8 dereferenceable(100) %36)
  call void @_ZN5R3Box5UnionERK7R3Point(ptr noundef nonnull align 8 dereferenceable(56) %35, ptr noundef nonnull align 8 dereferenceable(24) %37)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  br label %38

38:                                               ; preds = %31
  %39 = load i32, ptr %5, align 4, !tbaa !9
  %40 = add nsw i32 %39, 1
  store i32 %40, ptr %5, align 4, !tbaa !9
  br label %25, !llvm.loop !13

41:                                               ; preds = %30
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(56) ptr @_ZN5R3BoxaSERKS_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 8 dereferenceable(56)) #3 align 2

declare void @_ZN5R3Box5UnionERK7R3Point(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #4

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 = { inlinehint 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 #4 = { "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 #5 = { 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"}
!13 = distinct !{!13, !12}


; 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.R3Box = type { %class.R3Solid, %class.R3Point, %class.R3Point }
%class.R3Solid = type { %class.R3Shape }
%class.R3Shape = type { ptr }
%class.R3Point = type { [3 x double] }

@R3null_box = external global %class.R3Box, align 8

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZNK7RNArrayIP16R3TriangleVertexE3KthEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZN16R3TriangleVertex13SetSharedFlagEv(ptr noundef nonnull align 8 dereferenceable(100)) local_unnamed_addr #2 align 2

; 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 #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN15R3TriangleArray6UpdateEv(ptr noundef nonnull align 8 dereferenceable(96) %0) unnamed_addr #1 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  %3 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %2)
  %4 = icmp sgt i32 %3, 0
  br i1 %4, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %1
  %5 = getelementptr inbounds i8, ptr %0, i64 40
  %6 = tail call noundef nonnull align 8 dereferenceable(56) ptr @_ZN5R3BoxaSERKS_(ptr noundef nonnull align 8 dereferenceable(56) %5, ptr noundef nonnull align 8 dereferenceable(56) @R3null_box)
  %7 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %2)
  %8 = icmp sgt i32 %7, 0
  br i1 %8, label %.lr.ph12, label %._crit_edge13

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.09 = phi i32 [ %10, %.lr.ph ], [ 0, %1 ]
  %9 = tail call noundef ptr @_ZNK7RNArrayIP16R3TriangleVertexE3KthEi(ptr noundef nonnull align 8 dereferenceable(16) %2, i32 noundef %.09)
  tail call void @_ZN16R3TriangleVertex13SetSharedFlagEv(ptr noundef nonnull align 8 dereferenceable(100) %9)
  %10 = add nuw nsw i32 %.09, 1
  %11 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %2)
  %12 = icmp slt i32 %10, %11
  br i1 %12, label %.lr.ph, label %._crit_edge, !llvm.loop !5

._crit_edge13:                                    ; preds = %.lr.ph12, %._crit_edge
  ret void

.lr.ph12:                                         ; preds = %._crit_edge, %.lr.ph12
  %.0810 = phi i32 [ %15, %.lr.ph12 ], [ 0, %._crit_edge ]
  %13 = tail call noundef ptr @_ZNK7RNArrayIP16R3TriangleVertexE3KthEi(ptr noundef nonnull align 8 dereferenceable(16) %2, i32 noundef %.0810)
  %14 = tail call noundef nonnull align 8 dereferenceable(24) ptr @_ZNK16R3TriangleVertex8PositionEv(ptr noundef nonnull align 8 dereferenceable(100) %13)
  tail call void @_ZN5R3Box5UnionERK7R3Point(ptr noundef nonnull align 8 dereferenceable(56) %5, ptr noundef nonnull align 8 dereferenceable(24) %14)
  %15 = add nuw nsw i32 %.0810, 1
  %16 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %2)
  %17 = icmp slt i32 %15, %16
  br i1 %17, label %.lr.ph12, label %._crit_edge13, !llvm.loop !7
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(56) ptr @_ZN5R3BoxaSERKS_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #2 align 2

declare void @_ZN5R3Box5UnionERK7R3Point(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3

attributes #0 = { 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 #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 = { inlinehint 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" }

!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"}
!7 = distinct !{!7, !6}


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