; LLVM IR from niessner/Matterport :: code/gaps/pkgs/R3Shapes/R3Mesh.ll (ZNK6R3Mesh18IsVertexOnBoundaryEPK12R3MeshVertex)

; 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"

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; 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 uwtable
declare dso_local noundef i32 @_ZNK6R3Mesh13VertexValenceEPK12R3MeshVertex(ptr noundef nonnull align 8 dereferenceable(272), ptr noundef) #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef ptr @_ZNK6R3Mesh12EdgeOnVertexEPK12R3MeshVertexi(ptr noundef nonnull align 8 dereferenceable(272), ptr noundef, i32 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZNK6R3Mesh18IsVertexOnBoundaryEPK12R3MeshVertex(ptr noundef nonnull align 8 dereferenceable(272) %0, ptr noundef %1) #2 align 2 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  %9 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 0, ptr %6, align 4, !tbaa !9
  br label %10

10:                                               ; preds = %28, %2
  %11 = load i32, ptr %6, align 4, !tbaa !9
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = call noundef i32 @_ZNK6R3Mesh13VertexValenceEPK12R3MeshVertex(ptr noundef nonnull align 8 dereferenceable(272) %9, ptr noundef %12)
  %14 = icmp slt i32 %11, %13
  br i1 %14, label %16, label %15

15:                                               ; preds = %10
  store i32 2, ptr %7, align 4
  br label %31

16:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %17 = load ptr, ptr %5, align 8, !tbaa !5
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = call noundef ptr @_ZNK6R3Mesh12EdgeOnVertexEPK12R3MeshVertexi(ptr noundef nonnull align 8 dereferenceable(272) %9, ptr noundef %17, i32 noundef %18)
  store ptr %19, ptr %8, align 8, !tbaa !5
  %20 = load ptr, ptr %8, align 8, !tbaa !5
  %21 = call noundef i32 @_ZNK6R3Mesh16IsEdgeOnBoundaryEPK10R3MeshEdge(ptr noundef nonnull align 8 dereferenceable(272) %9, ptr noundef %20)
  %22 = icmp ne i32 %21, 0
  br i1 %22, label %23, label %24

23:                                               ; preds = %16
  store i32 1, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %25

24:                                               ; preds = %16
  store i32 0, ptr %7, align 4
  br label %25

25:                                               ; preds = %24, %23
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  %26 = load i32, ptr %7, align 4
  switch i32 %26, label %31 [
    i32 0, label %27
  ]

27:                                               ; preds = %25
  br label %28

28:                                               ; preds = %27
  %29 = load i32, ptr %6, align 4, !tbaa !9
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %6, align 4, !tbaa !9
  br label %10, !llvm.loop !11

31:                                               ; preds = %25, %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %32 = load i32, ptr %7, align 4
  switch i32 %32, label %36 [
    i32 2, label %33
    i32 1, label %34
  ]

33:                                               ; preds = %31
  store i32 0, ptr %3, align 4
  br label %34

34:                                               ; preds = %33, %31
  %35 = load i32, ptr %3, align 4
  ret i32 %35

36:                                               ; preds = %31
  unreachable
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK6R3Mesh16IsEdgeOnBoundaryEPK10R3MeshEdge(ptr noundef nonnull align 8 dereferenceable(272), ptr noundef) #3 align 2

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

!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"

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef i32 @_ZNK6R3Mesh13VertexValenceEPK12R3MeshVertex(ptr noundef nonnull align 8 dereferenceable(272), ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef ptr @_ZNK6R3Mesh12EdgeOnVertexEPK12R3MeshVertexi(ptr noundef nonnull align 8 dereferenceable(272), ptr noundef, i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZNK6R3Mesh18IsVertexOnBoundaryEPK12R3MeshVertex(ptr noundef nonnull align 8 dereferenceable(272) %0, ptr noundef %1) local_unnamed_addr #1 align 2 {
  %3 = tail call noundef i32 @_ZNK6R3Mesh13VertexValenceEPK12R3MeshVertex(ptr noundef nonnull align 8 dereferenceable(272) %0, ptr noundef %1)
  %.not1213 = icmp sgt i32 %3, 0
  br i1 %.not1213, label %.lr.ph, label %._crit_edge

4:                                                ; preds = %.lr.ph
  %5 = add nuw nsw i32 %.01114, 1
  %6 = tail call noundef i32 @_ZNK6R3Mesh13VertexValenceEPK12R3MeshVertex(ptr noundef nonnull align 8 dereferenceable(272) %0, ptr noundef %1)
  %.not12 = icmp slt i32 %5, %6
  br i1 %.not12, label %.lr.ph, label %._crit_edge.loopexit, !llvm.loop !5

.lr.ph:                                           ; preds = %2, %4
  %.01114 = phi i32 [ %5, %4 ], [ 0, %2 ]
  %7 = tail call noundef ptr @_ZNK6R3Mesh12EdgeOnVertexEPK12R3MeshVertexi(ptr noundef nonnull align 8 dereferenceable(272) %0, ptr noundef %1, i32 noundef %.01114)
  %8 = tail call noundef i32 @_ZNK6R3Mesh16IsEdgeOnBoundaryEPK10R3MeshEdge(ptr noundef nonnull align 8 dereferenceable(272) %0, ptr noundef %7)
  %.not = icmp ne i32 %8, 0
  br i1 %.not, label %._crit_edge.loopexit, label %4

._crit_edge.loopexit:                             ; preds = %4, %.lr.ph
  %9 = zext i1 %.not to i32
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %2
  %.not12.lcssa = phi i32 [ 0, %2 ], [ %9, %._crit_edge.loopexit ]
  ret i32 %.not12.lcssa
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK6R3Mesh16IsEdgeOnBoundaryEPK10R3MeshEdge(ptr noundef nonnull align 8 dereferenceable(272), ptr noundef) local_unnamed_addr #2 align 2

attributes #0 = { 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 #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 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" }

!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: CorrelatedValuePropagationPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass