; LLVM IR from niessner/Matterport :: code/gaps/pkgs/R3Shapes/R3Align.ll (Z13R3BoundingBoxRK7RNArrayIP7R3PointE)

; 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] }

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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z13R3BoundingBoxRK7RNArrayIP7R3PointE(ptr dead_on_unwind noalias writable sret(%class.R3Box) align 8 %0, ptr noundef nonnull align 8 dereferenceable(16) %1) #0 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i1, align 1
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  store i1 false, ptr %5, align 1
  call void @_ZN5R3BoxC1ERKS_(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef nonnull align 8 dereferenceable(56) @R3null_box)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %9

9:                                                ; preds = %26, %2
  %10 = load i32, ptr %6, align 4, !tbaa !9
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = invoke noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %11)
          to label %13 unwind label %16

13:                                               ; preds = %9
  %14 = icmp slt i32 %10, %12
  br i1 %14, label %20, label %15

15:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  br label %29

16:                                               ; preds = %24, %20, %9
  %17 = landingpad { ptr, i32 }
          cleanup
  %18 = extractvalue { ptr, i32 } %17, 0
  store ptr %18, ptr %7, align 8
  %19 = extractvalue { ptr, i32 } %17, 1
  store i32 %19, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  call void @_ZN7R3SolidD2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) #5
  br label %33

20:                                               ; preds = %13
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = load i32, ptr %6, align 4, !tbaa !9
  %23 = invoke noundef ptr @_ZNK7RNArrayIP7R3PointEixEi(ptr noundef nonnull align 8 dereferenceable(16) %21, i32 noundef %22)
          to label %24 unwind label %16

24:                                               ; preds = %20
  invoke void @_ZN5R3Box5UnionERK7R3Point(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef nonnull align 8 dereferenceable(24) %23)
          to label %25 unwind label %16

25:                                               ; preds = %24
  br label %26

26:                                               ; preds = %25
  %27 = load i32, ptr %6, align 4, !tbaa !9
  %28 = add nsw i32 %27, 1
  store i32 %28, ptr %6, align 4, !tbaa !9
  br label %9, !llvm.loop !11

29:                                               ; preds = %15
  store i1 true, ptr %5, align 1
  %30 = load i1, ptr %5, align 1
  br i1 %30, label %32, label %31

31:                                               ; preds = %29
  call void @_ZN7R3SolidD2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) #5
  br label %32

32:                                               ; preds = %31, %29
  ret void

33:                                               ; preds = %16
  %34 = load ptr, ptr %7, align 8
  %35 = load i32, ptr %8, align 4
  %36 = insertvalue { ptr, i32 } poison, ptr %34, 0
  %37 = insertvalue { ptr, i32 } %36, i32 %35, 1
  resume { ptr, i32 } %37
}

declare void @_ZN5R3BoxC1ERKS_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16)) #3 align 2

declare i32 @__gxx_personality_v0(...)

declare void @_ZN5R3Box5UnionERK7R3Point(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZNK7RNArrayIP7R3PointEixEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) #0 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nounwind
declare void @_ZN7R3SolidD2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #4

attributes #0 = { 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 #1 = { "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { 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 #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"}


; 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: mustprogress uwtable
define dso_local void @_Z13R3BoundingBoxRK7RNArrayIP7R3PointE(ptr dead_on_unwind noalias nonnull writable sret(%class.R3Box) align 8 %0, ptr noundef nonnull align 8 dereferenceable(16) %1) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  tail call void @_ZN5R3BoxC1ERKS_(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef nonnull align 8 dereferenceable(56) @R3null_box)
  %3 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %1)
  %4 = icmp sgt i32 %3, 0
  br i1 %4, label %.lr.ph, label %._crit_edge

5:                                                ; preds = %8, %.lr.ph
  %6 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZN7R3SolidD2Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) #4
  resume { ptr, i32 } %6

.lr.ph:                                           ; preds = %2, %9
  %.07 = phi i32 [ %10, %9 ], [ 0, %2 ]
  %7 = invoke noundef ptr @_ZNK7RNArrayIP7R3PointEixEi(ptr noundef nonnull align 8 dereferenceable(16) %1, i32 noundef %.07)
          to label %8 unwind label %5

8:                                                ; preds = %.lr.ph
  invoke void @_ZN5R3Box5UnionERK7R3Point(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef nonnull align 8 dereferenceable(24) %7)
          to label %9 unwind label %5

9:                                                ; preds = %8
  %10 = add nuw nsw i32 %.07, 1
  %11 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %1)
  %12 = icmp slt i32 %10, %11
  br i1 %12, label %.lr.ph, label %._crit_edge, !llvm.loop !5

._crit_edge:                                      ; preds = %9, %2
  ret void
}

declare void @_ZN5R3BoxC1ERKS_(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #1

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

declare i32 @__gxx_personality_v0(...)

declare void @_ZN5R3Box5UnionERK7R3Point(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_ZNK7RNArrayIP7R3PointEixEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: nounwind
declare void @_ZN7R3SolidD2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #3

attributes #0 = { 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 #1 = { "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 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 #3 = { 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 #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,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass