; LLVM IR from niessner/Matterport :: code/gaps/apps/mpview/mp.ll (ZN9MPSurface13RecomputeBBoxEv)

; 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] }
%struct.MPSurface = type { ptr, i32, ptr, i32, %class.RNArray.5, %class.R3Point, %class.R3Vector, %class.R3Box, ptr }
%class.RNArray.5 = type { %class.RNVArray }
%class.RNVArray = type { ptr, i32, i32 }
%class.R3Vector = type { [3 x double] }
%struct.MPVertex = type { ptr, i32, ptr, i32, %class.R3Point, %class.R3Vector, ptr }

@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)) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZNK7RNArrayIP8MPVertexE3KthEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN9MPSurface13RecomputeBBoxEv(ptr noundef nonnull align 8 dereferenceable(160) %0) #2 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8
  %6 = getelementptr inbounds %struct.MPSurface, ptr %5, i32 0, i32 7
  %7 = call noundef nonnull align 8 dereferenceable(56) ptr @_ZN5R3BoxaSERKS_(ptr noundef nonnull align 8 dereferenceable(56) %6, ptr noundef nonnull align 8 dereferenceable(56) @R3null_box)
  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 = %24, %1
  %9 = load i32, ptr %3, align 4, !tbaa !9
  %10 = getelementptr inbounds %struct.MPSurface, ptr %5, i32 0, i32 4
  %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 %27

14:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  %15 = getelementptr inbounds %struct.MPSurface, ptr %5, i32 0, i32 4
  %16 = load i32, ptr %3, align 4, !tbaa !9
  %17 = call noundef ptr @_ZNK7RNArrayIP8MPVertexE3KthEi(ptr noundef nonnull align 8 dereferenceable(16) %15, i32 noundef %16)
  store ptr %17, ptr %4, align 8, !tbaa !5
  %18 = load i32, ptr %3, align 4, !tbaa !9
  %19 = load ptr, ptr %4, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.MPVertex, ptr %19, i32 0, i32 3
  store i32 %18, ptr %20, align 8, !tbaa !11
  %21 = getelementptr inbounds %struct.MPSurface, ptr %5, i32 0, i32 7
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.MPVertex, ptr %22, i32 0, i32 4
  call void @_ZN5R3Box5UnionERK7R3Point(ptr noundef nonnull align 8 dereferenceable(56) %21, ptr noundef nonnull align 8 dereferenceable(24) %23)
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  br label %24

24:                                               ; preds = %14
  %25 = load i32, ptr %3, align 4, !tbaa !9
  %26 = add nsw i32 %25, 1
  store i32 %26, ptr %3, align 4, !tbaa !9
  br label %8, !llvm.loop !15

27:                                               ; preds = %13
  %28 = getelementptr inbounds %struct.MPSurface, ptr %5, i32 0, i32 2
  %29 = load ptr, ptr %28, align 8, !tbaa !17
  %30 = icmp ne ptr %29, null
  br i1 %30, label %31, label %34

31:                                               ; preds = %27
  %32 = getelementptr inbounds %struct.MPSurface, ptr %5, i32 0, i32 2
  %33 = load ptr, ptr %32, align 8, !tbaa !17
  call void @_ZN8MPRegion13RecomputeBBoxEi(ptr noundef nonnull align 8 dereferenceable(192) %33, i32 noundef 1)
  br label %34

34:                                               ; preds = %31, %27
  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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8MPRegion13RecomputeBBoxEi(ptr noundef nonnull align 8 dereferenceable(192), i32 noundef) #2 align 2

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!12, !10, i64 24}
!12 = !{!"_ZTS8MPVertex", !6, i64 0, !10, i64 8, !6, i64 16, !10, i64 24, !13, i64 32, !14, i64 56, !6, i64 80}
!13 = !{!"_ZTS7R3Point", !7, i64 0}
!14 = !{!"_ZTS8R3Vector", !7, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}
!17 = !{!18, !6, i64 16}
!18 = !{!"_ZTS9MPSurface", !6, i64 0, !10, i64 8, !6, i64 16, !10, i64 24, !19, i64 32, !13, i64 48, !14, i64 72, !21, i64 96, !6, i64 152}
!19 = !{!"_ZTS7RNArrayIP8MPVertexE", !20, i64 0}
!20 = !{!"_ZTS8RNVArray", !6, i64 0, !10, i64 8, !10, i64 12}
!21 = !{!"_ZTS5R3Box", !22, i64 0, !13, i64 8, !13, i64 32}
!22 = !{!"_ZTS7R3Solid", !23, i64 0}
!23 = !{!"_ZTS7R3Shape"}


; 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 @_ZNK7RNArrayIP8MPVertexE3KthEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN9MPSurface13RecomputeBBoxEv(ptr noundef nonnull align 8 dereferenceable(160) %0) local_unnamed_addr #1 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 96
  %3 = tail call noundef nonnull align 8 dereferenceable(56) ptr @_ZN5R3BoxaSERKS_(ptr noundef nonnull align 8 dereferenceable(56) %2, ptr noundef nonnull align 8 dereferenceable(56) @R3null_box)
  %4 = getelementptr inbounds i8, ptr %0, i64 32
  %5 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %4)
  %6 = icmp sgt i32 %5, 0
  br i1 %6, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %1
  %7 = getelementptr inbounds i8, ptr %0, i64 16
  %8 = load ptr, ptr %7, align 8, !tbaa !5
  %.not = icmp eq ptr %8, null
  br i1 %.not, label %16, label %15

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.07 = phi i32 [ %12, %.lr.ph ], [ 0, %1 ]
  %9 = tail call noundef ptr @_ZNK7RNArrayIP8MPVertexE3KthEi(ptr noundef nonnull align 8 dereferenceable(16) %4, i32 noundef %.07)
  %10 = getelementptr inbounds i8, ptr %9, i64 24
  store i32 %.07, ptr %10, align 8, !tbaa !18
  %11 = getelementptr inbounds i8, ptr %9, i64 32
  tail call void @_ZN5R3Box5UnionERK7R3Point(ptr noundef nonnull align 8 dereferenceable(56) %2, ptr noundef nonnull align 8 dereferenceable(24) %11)
  %12 = add nuw nsw i32 %.07, 1
  %13 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %4)
  %14 = icmp slt i32 %12, %13
  br i1 %14, label %.lr.ph, label %._crit_edge, !llvm.loop !20

15:                                               ; preds = %._crit_edge
  tail call void @_ZN8MPRegion13RecomputeBBoxEi(ptr noundef nonnull align 8 dereferenceable(192) %8, i32 noundef 1)
  br label %16

16:                                               ; preds = %15, %._crit_edge
  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)) 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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8MPRegion13RecomputeBBoxEi(ptr noundef nonnull align 8 dereferenceable(192), i32 noundef) local_unnamed_addr #1 align 2

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 = !{!6, !7, i64 16}
!6 = !{!"_ZTS9MPSurface", !7, i64 0, !10, i64 8, !7, i64 16, !10, i64 24, !11, i64 32, !13, i64 48, !14, i64 72, !15, i64 96, !7, i64 152}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"_ZTS7RNArrayIP8MPVertexE", !12, i64 0}
!12 = !{!"_ZTS8RNVArray", !7, i64 0, !10, i64 8, !10, i64 12}
!13 = !{!"_ZTS7R3Point", !8, i64 0}
!14 = !{!"_ZTS8R3Vector", !8, i64 0}
!15 = !{!"_ZTS5R3Box", !16, i64 0, !13, i64 8, !13, i64 32}
!16 = !{!"_ZTS7R3Solid", !17, i64 0}
!17 = !{!"_ZTS7R3Shape"}
!18 = !{!19, !10, i64 24}
!19 = !{!"_ZTS8MPVertex", !7, i64 0, !10, i64 8, !7, i64 16, !10, i64 24, !13, i64 32, !14, i64 56, !7, i64 80}
!20 = distinct !{!20, !21}
!21 = !{!"llvm.loop.mustprogress"}


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