; LLVM IR from erwincoumans/tiny-differentiable-simulator :: src/visualizer/opengl/tiny_fonts.ll (Z20TwDeleteDefaultFontsv)

; 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"

@g_DefaultSmallFont = external dso_local global ptr, align 8
@g_DefaultNormalFont = external dso_local global ptr, align 8
@g_DefaultNormalFontAA = external dso_local global ptr, align 8
@g_DefaultLargeFont = external dso_local global ptr, align 8
@g_DefaultFixed1Font = external dso_local global ptr, align 8

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z20TwDeleteDefaultFontsv() #1 {
  %1 = load ptr, ptr @g_DefaultSmallFont, align 8, !tbaa !5
  %2 = icmp eq ptr %1, null
  br i1 %2, label %4, label %3

3:                                                ; preds = %0
  call void @_ZN8CTexFontD1Ev(ptr noundef nonnull align 8 dereferenceable(5144) %1) #2
  call void @_ZdlPvm(ptr noundef %1, i64 noundef 5144) #3
  br label %4

4:                                                ; preds = %3, %0
  store ptr null, ptr @g_DefaultSmallFont, align 8, !tbaa !5
  %5 = load ptr, ptr @g_DefaultNormalFont, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %8, label %7

7:                                                ; preds = %4
  call void @_ZN8CTexFontD1Ev(ptr noundef nonnull align 8 dereferenceable(5144) %5) #2
  call void @_ZdlPvm(ptr noundef %5, i64 noundef 5144) #3
  br label %8

8:                                                ; preds = %7, %4
  store ptr null, ptr @g_DefaultNormalFont, align 8, !tbaa !5
  %9 = load ptr, ptr @g_DefaultNormalFontAA, align 8, !tbaa !5
  %10 = icmp eq ptr %9, null
  br i1 %10, label %12, label %11

11:                                               ; preds = %8
  call void @_ZN8CTexFontD1Ev(ptr noundef nonnull align 8 dereferenceable(5144) %9) #2
  call void @_ZdlPvm(ptr noundef %9, i64 noundef 5144) #3
  br label %12

12:                                               ; preds = %11, %8
  store ptr null, ptr @g_DefaultNormalFontAA, align 8, !tbaa !5
  %13 = load ptr, ptr @g_DefaultLargeFont, align 8, !tbaa !5
  %14 = icmp eq ptr %13, null
  br i1 %14, label %16, label %15

15:                                               ; preds = %12
  call void @_ZN8CTexFontD1Ev(ptr noundef nonnull align 8 dereferenceable(5144) %13) #2
  call void @_ZdlPvm(ptr noundef %13, i64 noundef 5144) #3
  br label %16

16:                                               ; preds = %15, %12
  store ptr null, ptr @g_DefaultLargeFont, align 8, !tbaa !5
  %17 = load ptr, ptr @g_DefaultFixed1Font, align 8, !tbaa !5
  %18 = icmp eq ptr %17, null
  br i1 %18, label %20, label %19

19:                                               ; preds = %16
  call void @_ZN8CTexFontD1Ev(ptr noundef nonnull align 8 dereferenceable(5144) %17) #2
  call void @_ZdlPvm(ptr noundef %17, i64 noundef 5144) #3
  br label %20

20:                                               ; preds = %19, %16
  store ptr null, ptr @g_DefaultFixed1Font, align 8, !tbaa !5
  ret void
}

declare void @_ZN8CTexFontD1Ev(ptr)

attributes #0 = { 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 #1 = { 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 = { nounwind }
attributes #3 = { 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"}


; 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"

@g_DefaultSmallFont = external dso_local local_unnamed_addr global ptr, align 8
@g_DefaultNormalFont = external dso_local local_unnamed_addr global ptr, align 8
@g_DefaultNormalFontAA = external dso_local local_unnamed_addr global ptr, align 8
@g_DefaultLargeFont = external dso_local local_unnamed_addr global ptr, align 8
@g_DefaultFixed1Font = external dso_local local_unnamed_addr global ptr, align 8

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z20TwDeleteDefaultFontsv() local_unnamed_addr #1 {
  %1 = load ptr, ptr @g_DefaultSmallFont, align 8, !tbaa !5
  %2 = icmp eq ptr %1, null
  br i1 %2, label %4, label %3

3:                                                ; preds = %0
  tail call void @_ZN8CTexFontD1Ev(ptr noundef nonnull align 8 dereferenceable(5144) %1) #2
  tail call void @_ZdlPvm(ptr noundef nonnull %1, i64 noundef 5144) #3
  br label %4

4:                                                ; preds = %3, %0
  store ptr null, ptr @g_DefaultSmallFont, align 8, !tbaa !5
  %5 = load ptr, ptr @g_DefaultNormalFont, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %8, label %7

7:                                                ; preds = %4
  tail call void @_ZN8CTexFontD1Ev(ptr noundef nonnull align 8 dereferenceable(5144) %5) #2
  tail call void @_ZdlPvm(ptr noundef nonnull %5, i64 noundef 5144) #3
  br label %8

8:                                                ; preds = %7, %4
  store ptr null, ptr @g_DefaultNormalFont, align 8, !tbaa !5
  %9 = load ptr, ptr @g_DefaultNormalFontAA, align 8, !tbaa !5
  %10 = icmp eq ptr %9, null
  br i1 %10, label %12, label %11

11:                                               ; preds = %8
  tail call void @_ZN8CTexFontD1Ev(ptr noundef nonnull align 8 dereferenceable(5144) %9) #2
  tail call void @_ZdlPvm(ptr noundef nonnull %9, i64 noundef 5144) #3
  br label %12

12:                                               ; preds = %11, %8
  store ptr null, ptr @g_DefaultNormalFontAA, align 8, !tbaa !5
  %13 = load ptr, ptr @g_DefaultLargeFont, align 8, !tbaa !5
  %14 = icmp eq ptr %13, null
  br i1 %14, label %16, label %15

15:                                               ; preds = %12
  tail call void @_ZN8CTexFontD1Ev(ptr noundef nonnull align 8 dereferenceable(5144) %13) #2
  tail call void @_ZdlPvm(ptr noundef nonnull %13, i64 noundef 5144) #3
  br label %16

16:                                               ; preds = %15, %12
  store ptr null, ptr @g_DefaultLargeFont, align 8, !tbaa !5
  %17 = load ptr, ptr @g_DefaultFixed1Font, align 8, !tbaa !5
  %18 = icmp eq ptr %17, null
  br i1 %18, label %20, label %19

19:                                               ; preds = %16
  tail call void @_ZN8CTexFontD1Ev(ptr noundef nonnull align 8 dereferenceable(5144) %17) #2
  tail call void @_ZdlPvm(ptr noundef nonnull %17, i64 noundef 5144) #3
  br label %20

20:                                               ; preds = %19, %16
  store ptr null, ptr @g_DefaultFixed1Font, align 8, !tbaa !5
  ret void
}

declare void @_ZN8CTexFontD1Ev(ptr) local_unnamed_addr

attributes #0 = { 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 #1 = { 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 = { nounwind }
attributes #3 = { 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"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,TailCallElimPass