; LLVM IR from niessner/Matterport :: code/gaps/pkgs/R3Graphics/R3SceneElement.ll (ZNK14R3SceneElement7NFacetsEv)

; 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.RNInterval = type { double, double }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK14R3SceneElement7NFacetsEv(ptr dead_on_unwind noalias writable sret(%class.RNInterval) align 8 %0, ptr noundef nonnull align 8 dereferenceable(96) %1) #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca %class.RNInterval, align 8
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  %8 = load ptr, ptr %4, align 8
  call void @_ZN10RNIntervalC1Edd(ptr noundef nonnull align 8 dereferenceable(16) %0, double noundef 0.000000e+00, double noundef 0.000000e+00)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %9

9:                                                ; preds = %21, %2
  %10 = load i32, ptr %5, align 4, !tbaa !9
  %11 = call noundef i32 @_ZNK14R3SceneElement7NShapesEv(ptr noundef nonnull align 8 dereferenceable(96) %8)
  %12 = icmp slt i32 %10, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  br label %24

14:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #5
  %15 = load i32, ptr %5, align 4, !tbaa !9
  %16 = call noundef ptr @_ZNK14R3SceneElement5ShapeEi(ptr noundef nonnull align 8 dereferenceable(96) %8, i32 noundef %15)
  store ptr %16, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 16, ptr %7) #5
  %17 = load ptr, ptr %6, align 8, !tbaa !5
  %18 = load ptr, ptr %17, align 8, !tbaa !11
  %19 = getelementptr inbounds ptr, ptr %18, i64 9
  %20 = load ptr, ptr %19, align 8
  call void %20(ptr dead_on_unwind writable sret(%class.RNInterval) align 8 %7, ptr noundef nonnull align 8 dereferenceable(8) %17)
  call void @_ZN10RNIntervalpLERKS_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(16) %7)
  call void @llvm.lifetime.end.p0(i64 16, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #5
  br label %21

21:                                               ; preds = %14
  %22 = load i32, ptr %5, align 4, !tbaa !9
  %23 = add nsw i32 %22, 1
  store i32 %23, ptr %5, align 4, !tbaa !9
  br label %9, !llvm.loop !13

24:                                               ; preds = %13
  ret void
}

declare void @_ZN10RNIntervalC1Edd(ptr noundef nonnull align 8 dereferenceable(16), double noundef, double noundef) 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 uwtable
declare dso_local noundef i32 @_ZNK14R3SceneElement7NShapesEv(ptr noundef nonnull align 8 dereferenceable(96)) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef ptr @_ZNK14R3SceneElement5ShapeEi(ptr noundef nonnull align 8 dereferenceable(96), i32 noundef) #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN10RNIntervalpLERKS_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) #4 align 2

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

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 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 = { 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 #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, !12, i64 0}
!12 = !{!"vtable pointer", !8, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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.RNInterval = type { double, double }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK14R3SceneElement7NFacetsEv(ptr dead_on_unwind noalias nonnull writable sret(%class.RNInterval) align 8 %0, ptr noundef nonnull align 8 dereferenceable(96) %1) local_unnamed_addr #0 align 2 {
  %3 = alloca %class.RNInterval, align 8
  tail call void @_ZN10RNIntervalC1Edd(ptr noundef nonnull align 8 dereferenceable(16) %0, double noundef 0.000000e+00, double noundef 0.000000e+00)
  %4 = tail call noundef i32 @_ZNK14R3SceneElement7NShapesEv(ptr noundef nonnull align 8 dereferenceable(96) %1)
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %2
  ret void

.lr.ph:                                           ; preds = %2, %.lr.ph
  %.04 = phi i32 [ %10, %.lr.ph ], [ 0, %2 ]
  %6 = call noundef ptr @_ZNK14R3SceneElement5ShapeEi(ptr noundef nonnull align 8 dereferenceable(96) %1, i32 noundef %.04)
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #5
  %7 = load ptr, ptr %6, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %7, i64 72
  %9 = load ptr, ptr %8, align 8
  call void %9(ptr dead_on_unwind nonnull writable sret(%class.RNInterval) align 8 %3, ptr noundef nonnull align 8 dereferenceable(8) %6)
  call void @_ZN10RNIntervalpLERKS_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(16) %3)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #5
  %10 = add nuw nsw i32 %.04, 1
  %11 = call noundef i32 @_ZNK14R3SceneElement7NShapesEv(ptr noundef nonnull align 8 dereferenceable(96) %1)
  %12 = icmp slt i32 %10, %11
  br i1 %12, label %.lr.ph, label %._crit_edge, !llvm.loop !8
}

declare void @_ZN10RNIntervalC1Edd(ptr noundef nonnull align 8 dereferenceable(16), double noundef, double noundef) unnamed_addr #1

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef i32 @_ZNK14R3SceneElement7NShapesEv(ptr noundef nonnull align 8 dereferenceable(96)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef ptr @_ZNK14R3SceneElement5ShapeEi(ptr noundef nonnull align 8 dereferenceable(96), i32 noundef) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN10RNIntervalpLERKS_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #4 align 2

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

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


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