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

; 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_sync_state = type { ptr, i32, i32, i32, i32, i32, i32 }

; 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: nounwind uwtable
declare dso_local i64 @ogg_sync_pageseek(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @ogg_sync_pageout(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  br label %8

8:                                                ; preds = %30, %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = call i64 @ogg_sync_pageseek(ptr noundef %9, ptr noundef %10)
  store i64 %11, ptr %6, align 8, !tbaa !9
  %12 = load i64, ptr %6, align 8, !tbaa !9
  %13 = icmp sgt i64 %12, 0
  br i1 %13, label %14, label %15

14:                                               ; preds = %8
  store i32 1, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %28

15:                                               ; preds = %8
  %16 = load i64, ptr %6, align 8, !tbaa !9
  %17 = icmp eq i64 %16, 0
  br i1 %17, label %18, label %19

18:                                               ; preds = %15
  store i32 0, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %28

19:                                               ; preds = %15
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.ogg_sync_state, ptr %20, i32 0, i32 4
  %22 = load i32, ptr %21, align 4, !tbaa !11
  %23 = icmp ne i32 %22, 0
  br i1 %23, label %27, label %24

24:                                               ; preds = %19
  %25 = load ptr, ptr %4, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.ogg_sync_state, ptr %25, i32 0, i32 4
  store i32 1, ptr %26, align 4, !tbaa !11
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %7, align 4
  br label %28

27:                                               ; preds = %19
  store i32 0, ptr %7, align 4
  br label %28

28:                                               ; preds = %27, %24, %18, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  %29 = load i32, ptr %7, align 4
  switch i32 %29, label %33 [
    i32 0, label %30
    i32 1, label %31
  ]

30:                                               ; preds = %28
  br label %8

31:                                               ; preds = %28
  %32 = load i32, ptr %3, align 4
  ret i32 %32

33:                                               ; preds = %28
  unreachable
}

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

!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, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !13, i64 20}
!12 = !{!"", !6, i64 0, !13, i64 8, !13, i64 12, !13, i64 16, !13, i64 20, !13, i64 24, !13, i64 28}
!13 = !{!"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: nounwind uwtable
declare dso_local i64 @ogg_sync_pageseek(ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @ogg_sync_pageout(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = getelementptr inbounds i8, ptr %0, i64 20
  br label %4

4:                                                ; preds = %9, %2
  %5 = tail call i64 @ogg_sync_pageseek(ptr noundef %0, ptr noundef %1)
  %6 = icmp sgt i64 %5, 0
  br i1 %6, label %.loopexit, label %7

7:                                                ; preds = %4
  %8 = icmp eq i64 %5, 0
  br i1 %8, label %.loopexit, label %9

9:                                                ; preds = %7
  %10 = load i32, ptr %3, align 4, !tbaa !5
  %.not = icmp eq i32 %10, 0
  br i1 %.not, label %11, label %4

11:                                               ; preds = %9
  store i32 1, ptr %3, align 4, !tbaa !5
  br label %.loopexit

.loopexit:                                        ; preds = %4, %7, %11
  %.1.ph = phi i32 [ -1, %11 ], [ 1, %4 ], [ 0, %7 ]
  ret i32 %.1.ph
}

attributes #0 = { 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 = !{!6, !10, i64 20}
!6 = !{!"", !7, i64 0, !10, i64 8, !10, i64 12, !10, i64 16, !10, i64 20, !10, i64 24, !10, i64 28}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LCSSAPass,LICMPass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass