; LLVM IR from modlfo/AudioEngine :: AudioEngine/JuceLibraryCode/modules/juce_audio_formats/codecs/oggvorbis (clear)

; 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"

%struct.ogg_stream_state = type { ptr, i64, i64, i64, ptr, ptr, i64, i64, i64, i64, [282 x i8], i32, i32, i32, i64, i64, i64, i64 }

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @ogg_stream_clear(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = icmp ne ptr %3, null
  br i1 %4, label %5, label %34

5:                                                ; preds = %1
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.ogg_stream_state, ptr %6, i32 0, i32 0
  %8 = load ptr, ptr %7, align 8, !tbaa !9
  %9 = icmp ne ptr %8, null
  br i1 %9, label %10, label %14

10:                                               ; preds = %5
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.ogg_stream_state, ptr %11, i32 0, i32 0
  %13 = load ptr, ptr %12, align 8, !tbaa !9
  call void @free(ptr noundef %13) #3
  br label %14

14:                                               ; preds = %10, %5
  %15 = load ptr, ptr %2, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.ogg_stream_state, ptr %15, i32 0, i32 4
  %17 = load ptr, ptr %16, align 8, !tbaa !13
  %18 = icmp ne ptr %17, null
  br i1 %18, label %19, label %23

19:                                               ; preds = %14
  %20 = load ptr, ptr %2, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.ogg_stream_state, ptr %20, i32 0, i32 4
  %22 = load ptr, ptr %21, align 8, !tbaa !13
  call void @free(ptr noundef %22) #3
  br label %23

23:                                               ; preds = %19, %14
  %24 = load ptr, ptr %2, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.ogg_stream_state, ptr %24, i32 0, i32 5
  %26 = load ptr, ptr %25, align 8, !tbaa !14
  %27 = icmp ne ptr %26, null
  br i1 %27, label %28, label %32

28:                                               ; preds = %23
  %29 = load ptr, ptr %2, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.ogg_stream_state, ptr %29, i32 0, i32 5
  %31 = load ptr, ptr %30, align 8, !tbaa !14
  call void @free(ptr noundef %31) #3
  br label %32

32:                                               ; preds = %28, %23
  %33 = load ptr, ptr %2, align 8, !tbaa !5
  call void @llvm.memset.p0.i64(ptr align 8 %33, i8 0, i64 408, i1 false)
  br label %34

34:                                               ; preds = %32, %1
  ret i32 0
}

; Function Attrs: nounwind
declare void @free(ptr noundef) #2

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

!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/C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"", !6, i64 0, !11, i64 8, !11, i64 16, !11, i64 24, !6, i64 32, !6, i64 40, !11, i64 48, !11, i64 56, !11, i64 64, !11, i64 72, !7, i64 80, !12, i64 364, !12, i64 368, !12, i64 372, !11, i64 376, !11, i64 384, !11, i64 392, !11, i64 400}
!11 = !{!"long", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!10, !6, i64 32}
!14 = !{!10, !6, i64 40}


; 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 nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #0

; Function Attrs: mustprogress nounwind willreturn uwtable
define dso_local noundef i32 @ogg_stream_clear(ptr noundef %0) local_unnamed_addr #1 {
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %14, label %2

2:                                                ; preds = %1
  %3 = load ptr, ptr %0, align 8, !tbaa !5
  %.not11 = icmp eq ptr %3, null
  br i1 %.not11, label %5, label %4

4:                                                ; preds = %2
  tail call void @free(ptr noundef nonnull %3) #3
  br label %5

5:                                                ; preds = %4, %2
  %6 = getelementptr inbounds i8, ptr %0, i64 32
  %7 = load ptr, ptr %6, align 8, !tbaa !12
  %.not12 = icmp eq ptr %7, null
  br i1 %.not12, label %9, label %8

8:                                                ; preds = %5
  tail call void @free(ptr noundef nonnull %7) #3
  br label %9

9:                                                ; preds = %8, %5
  %10 = getelementptr inbounds i8, ptr %0, i64 40
  %11 = load ptr, ptr %10, align 8, !tbaa !13
  %.not13 = icmp eq ptr %11, null
  br i1 %.not13, label %13, label %12

12:                                               ; preds = %9
  tail call void @free(ptr noundef nonnull %11) #3
  br label %13

13:                                               ; preds = %12, %9
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(408) %0, i8 0, i64 408, i1 false)
  br label %14

14:                                               ; preds = %13, %1
  ret i32 0
}

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #2

attributes #0 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #1 = { mustprogress nounwind willreturn 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 nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 }

!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, !7, i64 0}
!6 = !{!"", !7, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !7, i64 32, !7, i64 40, !10, i64 48, !10, i64 56, !10, i64 64, !10, i64 72, !8, i64 80, !11, i64 364, !11, i64 368, !11, i64 372, !10, i64 376, !10, i64 384, !10, i64 392, !10, i64 400}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!"int", !8, i64 0}
!12 = !{!6, !7, i64 32}
!13 = !{!6, !7, i64 40}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass