; LLVM IR from niessner/Matterport :: code/gaps/pkgs/R3Shapes/R3CatmullRomSpline.ll (ZN18R3CatmullRomSpline10UpdateBBoxEv)

; 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.R3Polyline = type { %class.R3Curve, ptr, ptr, ptr, i32, %class.R3Box }
%class.R3Curve = type { %class.R3Shape }
%class.R3Shape = type { ptr }
%class.R3Box = type { %class.R3Solid, %class.R3Point, %class.R3Point }
%class.R3Solid = type { %class.R3Shape }

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK10R3Polyline9NVerticesEv(ptr noundef nonnull align 8 dereferenceable(96)) #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: mustprogress uwtable
declare dso_local void @_ZNK18R3CatmullRomSpline21PhantomVertexPositionEii(ptr dead_on_unwind noalias writable sret(%class.R3Point) align 8, ptr noundef nonnull align 8 dereferenceable(104), i32 noundef, 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) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN18R3CatmullRomSpline10UpdateBBoxEv(ptr noundef nonnull align 8 dereferenceable(104) %0) unnamed_addr #2 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca %class.R3Point, align 8
  %5 = alloca %class.R3Point, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %6 = load ptr, ptr %2, align 8
  call void @_ZN10R3Polyline10UpdateBBoxEv(ptr noundef nonnull align 8 dereferenceable(96) %6)
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %7

7:                                                ; preds = %18, %1
  %8 = load i32, ptr %3, align 4, !tbaa !9
  %9 = call noundef i32 @_ZNK10R3Polyline9NVerticesEv(ptr noundef nonnull align 8 dereferenceable(96) %6)
  %10 = sub nsw i32 %9, 1
  %11 = icmp slt i32 %8, %10
  br i1 %11, label %13, label %12

12:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  br label %21

13:                                               ; preds = %7
  %14 = getelementptr inbounds %class.R3Polyline, ptr %6, i32 0, i32 5
  call void @llvm.lifetime.start.p0(i64 24, ptr %4) #4
  %15 = load i32, ptr %3, align 4, !tbaa !9
  call void @_ZNK18R3CatmullRomSpline21PhantomVertexPositionEii(ptr dead_on_unwind writable sret(%class.R3Point) align 8 %4, ptr noundef nonnull align 8 dereferenceable(104) %6, i32 noundef %15, i32 noundef 0)
  call void @_ZN5R3Box5UnionERK7R3Point(ptr noundef nonnull align 8 dereferenceable(56) %14, ptr noundef nonnull align 8 dereferenceable(24) %4)
  call void @llvm.lifetime.end.p0(i64 24, ptr %4) #4
  %16 = getelementptr inbounds %class.R3Polyline, ptr %6, i32 0, i32 5
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #4
  %17 = load i32, ptr %3, align 4, !tbaa !9
  call void @_ZNK18R3CatmullRomSpline21PhantomVertexPositionEii(ptr dead_on_unwind writable sret(%class.R3Point) align 8 %5, ptr noundef nonnull align 8 dereferenceable(104) %6, i32 noundef %17, i32 noundef 1)
  call void @_ZN5R3Box5UnionERK7R3Point(ptr noundef nonnull align 8 dereferenceable(56) %16, ptr noundef nonnull align 8 dereferenceable(24) %5)
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #4
  br label %18

18:                                               ; preds = %13
  %19 = load i32, ptr %3, align 4, !tbaa !9
  %20 = add nsw i32 %19, 1
  store i32 %20, ptr %3, align 4, !tbaa !9
  br label %7, !llvm.loop !11

21:                                               ; preds = %12
  ret void
}

declare void @_ZN10R3Polyline10UpdateBBoxEv(ptr noundef nonnull align 8 dereferenceable(96)) unnamed_addr #3

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 = { 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 = { "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 = !{!"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.R3Point = type { [3 x double] }

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK10R3Polyline9NVerticesEv(ptr noundef nonnull align 8 dereferenceable(96)) local_unnamed_addr #0 align 2

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

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNK18R3CatmullRomSpline21PhantomVertexPositionEii(ptr dead_on_unwind noalias writable sret(%class.R3Point) align 8, ptr noundef nonnull align 8 dereferenceable(104), i32 noundef, 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) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN18R3CatmullRomSpline10UpdateBBoxEv(ptr noundef nonnull align 8 dereferenceable(104) %0) unnamed_addr #2 align 2 {
  %2 = alloca %class.R3Point, align 8
  %3 = alloca %class.R3Point, align 8
  tail call void @_ZN10R3Polyline10UpdateBBoxEv(ptr noundef nonnull align 8 dereferenceable(96) %0)
  %4 = tail call noundef i32 @_ZNK10R3Polyline9NVerticesEv(ptr noundef nonnull align 8 dereferenceable(96) %0)
  %5 = icmp sgt i32 %4, 1
  br i1 %5, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1
  %6 = getelementptr inbounds i8, ptr %0, i64 40
  br label %7

._crit_edge:                                      ; preds = %7, %1
  ret void

7:                                                ; preds = %.lr.ph, %7
  %.04 = phi i32 [ 0, %.lr.ph ], [ %8, %7 ]
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #4
  call void @_ZNK18R3CatmullRomSpline21PhantomVertexPositionEii(ptr dead_on_unwind nonnull writable sret(%class.R3Point) align 8 %2, ptr noundef nonnull align 8 dereferenceable(104) %0, i32 noundef %.04, i32 noundef 0)
  call void @_ZN5R3Box5UnionERK7R3Point(ptr noundef nonnull align 8 dereferenceable(56) %6, ptr noundef nonnull align 8 dereferenceable(24) %2)
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #4
  call void @_ZNK18R3CatmullRomSpline21PhantomVertexPositionEii(ptr dead_on_unwind nonnull writable sret(%class.R3Point) align 8 %3, ptr noundef nonnull align 8 dereferenceable(104) %0, i32 noundef %.04, i32 noundef 1)
  call void @_ZN5R3Box5UnionERK7R3Point(ptr noundef nonnull align 8 dereferenceable(56) %6, ptr noundef nonnull align 8 dereferenceable(24) %3)
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #4
  %8 = add nuw nsw i32 %.04, 1
  %9 = call noundef i32 @_ZNK10R3Polyline9NVerticesEv(ptr noundef nonnull align 8 dereferenceable(96) %0)
  %10 = add nsw i32 %9, -1
  %11 = icmp slt i32 %8, %10
  br i1 %11, label %7, label %._crit_edge, !llvm.loop !5
}

declare void @_ZN10R3Polyline10UpdateBBoxEv(ptr noundef nonnull align 8 dereferenceable(96)) unnamed_addr #3

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 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 = { "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,SROAPass,SimplifyCFGPass,TailCallElimPass