; LLVM IR from niessner/Matterport :: code/gaps/pkgs/RNBasics/RNArray.ll (ZN8RNVArray6AppendERKS_)

; 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: mustprogress uwtable
declare dso_local void @_ZN8RNVArray6ResizeEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8RNVArray6AppendERKS_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(16) %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8
  %7 = call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %6)
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %8)
  %10 = add nsw i32 %7, %9
  call void @_ZN8RNVArray6ResizeEi(ptr noundef nonnull align 8 dereferenceable(16) %6, i32 noundef %10)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 0, ptr %5, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %22, %2
  %12 = load i32, ptr %5, align 4, !tbaa !9
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %13)
  %15 = icmp slt i32 %12, %14
  br i1 %15, label %17, label %16

16:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %25

17:                                               ; preds = %11
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = load i32, ptr %5, align 4, !tbaa !9
  %20 = call noundef ptr @_ZNK8RNVArray3KthEi(ptr noundef nonnull align 8 dereferenceable(16) %18, i32 noundef %19)
  %21 = call noundef ptr @_ZN8RNVArray6InsertEPv(ptr noundef nonnull align 8 dereferenceable(16) %6, ptr noundef %20)
  br label %22

22:                                               ; preds = %17
  %23 = load i32, ptr %5, align 4, !tbaa !9
  %24 = add nsw i32 %23, 1
  store i32 %24, ptr %5, align 4, !tbaa !9
  br label %11, !llvm.loop !11

25:                                               ; preds = %16
  ret void
}

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef ptr @_ZN8RNVArray6InsertEPv(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef ptr @_ZNK8RNVArray3KthEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) #3 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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" }
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 = { 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: mustprogress uwtable
declare dso_local void @_ZN8RNVArray6ResizeEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN8RNVArray6AppendERKS_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 8 dereferenceable(16) %1) local_unnamed_addr #0 align 2 {
  %3 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %0)
  %4 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %1)
  %5 = add nsw i32 %4, %3
  tail call void @_ZN8RNVArray6ResizeEi(ptr noundef nonnull align 8 dereferenceable(16) %0, i32 noundef %5)
  %6 = tail call noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16) %1)
  %7 = icmp sgt i32 %6, 0
  br i1 %7, label %.lr.ph, label %._crit_edge

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

.lr.ph:                                           ; preds = %2, %.lr.ph
  %.06 = phi i32 [ %10, %.lr.ph ], [ 0, %2 ]
  %8 = tail call noundef ptr @_ZNK8RNVArray3KthEi(ptr noundef nonnull align 8 dereferenceable(16) %1, i32 noundef %.06)
  %9 = tail call noundef ptr @_ZN8RNVArray6InsertEPv(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef %8)
  %10 = add nuw nsw i32 %.06, 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
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK8RNVArray8NEntriesEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef ptr @_ZN8RNVArray6InsertEPv(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef ptr @_ZNK8RNVArray3KthEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #2 align 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 = { 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 #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" }

!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: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass