; LLVM IR from achilles288/robot-monitor-graphics :: src/base/object3d.ll (ZN3rmg8Object3D14dereferenceVBOEv)

; 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.rmg::Object3D" = type { %"class.rmg::Object", %"struct.rmg::Mat4", %"struct.rmg::Vec3", ptr, float, float, float, ptr, ptr, %"class.rmg::internal::Pending", ptr, ptr, %"class.rmg::internal::Pending" }
%"class.rmg::Object" = type { ptr, i64, ptr, %"struct.rmg::ColorRGBA", i8, i32 }
%"struct.rmg::ColorRGBA" = type { float, float, float, float }
%"struct.rmg::Mat4" = type { %union.anon }
%union.anon = type { [4 x [4 x float]] }
%"struct.rmg::Vec3" = type { %union.anon.0 }
%union.anon.0 = type { %struct.anon }
%struct.anon = type { float, float, float }
%"class.rmg::internal::Pending" = type { ptr, ptr }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN3rmg8Object3D14dereferenceVBOEv(ptr noundef nonnull align 8 dereferenceable(216) %0) #0 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %"class.rmg::Object3D", ptr %3, i32 0, i32 7
  %5 = load ptr, ptr %4, align 8, !tbaa !9
  %6 = icmp ne ptr %5, null
  br i1 %6, label %7, label %30

7:                                                ; preds = %1
  %8 = getelementptr inbounds %"class.rmg::Object3D", ptr %3, i32 0, i32 8
  %9 = load ptr, ptr %8, align 8, !tbaa !20
  %10 = load i32, ptr %9, align 4, !tbaa !21
  %11 = add i32 %10, -1
  store i32 %11, ptr %9, align 4, !tbaa !21
  %12 = getelementptr inbounds %"class.rmg::Object3D", ptr %3, i32 0, i32 8
  %13 = load ptr, ptr %12, align 8, !tbaa !20
  %14 = load i32, ptr %13, align 4, !tbaa !21
  %15 = icmp eq i32 %14, 0
  br i1 %15, label %16, label %29

16:                                               ; preds = %7
  %17 = getelementptr inbounds %"class.rmg::Object3D", ptr %3, i32 0, i32 7
  %18 = load ptr, ptr %17, align 8, !tbaa !9
  %19 = icmp eq ptr %18, null
  br i1 %19, label %21, label %20

20:                                               ; preds = %16
  call void @_ZN3rmg8internal3VBOD1Ev(ptr noundef nonnull align 4 dereferenceable(28) %18) #3
  call void @_ZdlPvm(ptr noundef %18, i64 noundef 28) #4
  br label %21

21:                                               ; preds = %20, %16
  %22 = getelementptr inbounds %"class.rmg::Object3D", ptr %3, i32 0, i32 8
  %23 = load ptr, ptr %22, align 8, !tbaa !20
  %24 = icmp eq ptr %23, null
  br i1 %24, label %26, label %25

25:                                               ; preds = %21
  call void @_ZdlPvm(ptr noundef %23, i64 noundef 4) #4
  br label %26

26:                                               ; preds = %25, %21
  %27 = getelementptr inbounds %"class.rmg::Object3D", ptr %3, i32 0, i32 7
  store ptr null, ptr %27, align 8, !tbaa !9
  %28 = getelementptr inbounds %"class.rmg::Object3D", ptr %3, i32 0, i32 8
  store ptr null, ptr %28, align 8, !tbaa !20
  br label %29

29:                                               ; preds = %26, %7
  br label %30

30:                                               ; preds = %29, %1
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #1

; Function Attrs: nounwind
declare void @_ZN3rmg8internal3VBOD1Ev(ptr noundef nonnull align 4 dereferenceable(28)) unnamed_addr #2

attributes #0 = { 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 = { nobuiltin 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 #2 = { 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 #3 = { nounwind }
attributes #4 = { builtin 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, !6, i64 152}
!10 = !{!"_ZTSN3rmg8Object3DE", !11, i64 0, !17, i64 48, !18, i64 112, !6, i64 128, !14, i64 136, !14, i64 140, !14, i64 144, !6, i64 152, !6, i64 160, !19, i64 168, !6, i64 184, !6, i64 192, !19, i64 200}
!11 = !{!"_ZTSN3rmg6ObjectE", !12, i64 8, !6, i64 16, !13, i64 24, !15, i64 40, !16, i64 44}
!12 = !{!"long", !7, i64 0}
!13 = !{!"_ZTSN3rmg9ColorRGBAE", !14, i64 0, !14, i64 4, !14, i64 8, !14, i64 12}
!14 = !{!"float", !7, i64 0}
!15 = !{!"bool", !7, i64 0}
!16 = !{!"_ZTSN3rmg10ObjectTypeE", !7, i64 0}
!17 = !{!"_ZTSN3rmg4Mat4E", !7, i64 0}
!18 = !{!"_ZTSN3rmg4Vec3E", !7, i64 0}
!19 = !{!"_ZTSN3rmg8internal7PendingE", !6, i64 0, !6, i64 8}
!20 = !{!10, !6, i64 160}
!21 = !{!22, !22, i64 0}
!22 = !{!"int", !7, i64 0}


; 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 nounwind uwtable
define dso_local void @_ZN3rmg8Object3D14dereferenceVBOEv(ptr nocapture noundef nonnull align 8 dereferenceable(216) %0) local_unnamed_addr #0 align 2 {
  %2 = getelementptr inbounds i8, ptr %0, i64 152
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %15, label %4

4:                                                ; preds = %1
  %5 = getelementptr inbounds i8, ptr %0, i64 160
  %6 = load ptr, ptr %5, align 8, !tbaa !19
  %7 = load i32, ptr %6, align 4, !tbaa !20
  %8 = add i32 %7, -1
  store i32 %8, ptr %6, align 4, !tbaa !20
  %9 = icmp eq i32 %8, 0
  br i1 %9, label %10, label %15

10:                                               ; preds = %4
  tail call void @_ZN3rmg8internal3VBOD1Ev(ptr noundef nonnull align 4 dereferenceable(28) %3) #4
  tail call void @_ZdlPvm(ptr noundef nonnull %3, i64 noundef 28) #5
  %11 = load ptr, ptr %5, align 8, !tbaa !19
  %12 = icmp eq ptr %11, null
  br i1 %12, label %14, label %13

13:                                               ; preds = %10
  tail call void @_ZdlPvm(ptr noundef nonnull %11, i64 noundef 4) #5
  br label %14

14:                                               ; preds = %13, %10
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %2, i8 0, i64 16, i1 false)
  br label %15

15:                                               ; preds = %4, %14, %1
  ret void
}

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #1

; Function Attrs: nounwind
declare void @_ZN3rmg8internal3VBOD1Ev(ptr noundef nonnull align 4 dereferenceable(28)) unnamed_addr #2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

attributes #0 = { 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 = { nobuiltin 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 #2 = { 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 #3 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #4 = { nounwind }
attributes #5 = { builtin 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, !11, i64 152}
!6 = !{!"_ZTSN3rmg8Object3DE", !7, i64 0, !16, i64 48, !17, i64 112, !11, i64 128, !13, i64 136, !13, i64 140, !13, i64 144, !11, i64 152, !11, i64 160, !18, i64 168, !11, i64 184, !11, i64 192, !18, i64 200}
!7 = !{!"_ZTSN3rmg6ObjectE", !8, i64 8, !11, i64 16, !12, i64 24, !14, i64 40, !15, i64 44}
!8 = !{!"long", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C++ TBAA"}
!11 = !{!"any pointer", !9, i64 0}
!12 = !{!"_ZTSN3rmg9ColorRGBAE", !13, i64 0, !13, i64 4, !13, i64 8, !13, i64 12}
!13 = !{!"float", !9, i64 0}
!14 = !{!"bool", !9, i64 0}
!15 = !{!"_ZTSN3rmg10ObjectTypeE", !9, i64 0}
!16 = !{!"_ZTSN3rmg4Mat4E", !9, i64 0}
!17 = !{!"_ZTSN3rmg4Vec3E", !9, i64 0}
!18 = !{!"_ZTSN3rmg8internal7PendingE", !11, i64 0, !11, i64 8}
!19 = !{!6, !11, i64 160}
!20 = !{!21, !21, i64 0}
!21 = !{!"int", !9, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InstCombinePass,JumpThreadingPass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass