; LLVM IR from modlfo/AudioEngine :: AudioEngine/JuceLibraryCode (juce_audio_basics)

; 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.juce::MPEZoneLayout" = type { %"class.juce::Array.51", %"class.juce::MidiRPNDetector", %"class.juce::ListenerList" }
%"class.juce::Array.51" = type { %"class.juce::ArrayAllocationBase.52", i32, [4 x i8] }
%"class.juce::ArrayAllocationBase.52" = type <{ %"class.juce::HeapBlock.53", i32, [4 x i8] }>
%"class.juce::HeapBlock.53" = type { ptr }
%"class.juce::MidiRPNDetector" = type { [16 x %"struct.juce::MidiRPNDetector::ChannelState"] }
%"struct.juce::MidiRPNDetector::ChannelState" = type { i8, i8, i8, i8, i8 }
%"class.juce::ListenerList" = type { %"class.juce::Array.56" }
%"class.juce::Array.56" = type { %"class.juce::ArrayAllocationBase.57", i32, [4 x i8] }
%"class.juce::ArrayAllocationBase.57" = type <{ %"class.juce::HeapBlock.58", i32, [4 x i8] }>
%"class.juce::HeapBlock.58" = type { ptr }
%"struct.juce::MPEZone" = type { 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: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4juce7MPEZone16getMasterChannelEv(ptr noundef nonnull align 4 dereferenceable(16)) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef ptr @_ZNK4juce13MPEZoneLayout22getZoneByMasterChannelEi(ptr noundef nonnull align 8 dereferenceable(128) %0, i32 noundef %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  %8 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %9 = getelementptr inbounds %"class.juce::MPEZoneLayout", ptr %8, i32 0, i32 0
  %10 = call noundef ptr @_ZNK4juce5ArrayINS_7MPEZoneENS_20DummyCriticalSectionELi0EE5beginEv(ptr noundef nonnull align 8 dereferenceable(20) %9) #3
  store ptr %10, ptr %6, align 8, !tbaa !5
  br label %11

11:                                               ; preds = %25, %2
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  %13 = getelementptr inbounds %"class.juce::MPEZoneLayout", ptr %8, i32 0, i32 0
  %14 = call noundef ptr @_ZNK4juce5ArrayINS_7MPEZoneENS_20DummyCriticalSectionELi0EE3endEv(ptr noundef nonnull align 8 dereferenceable(20) %13) #3
  %15 = icmp ne ptr %12, %14
  br i1 %15, label %17, label %16

16:                                               ; preds = %11
  store i32 2, ptr %7, align 4
  br label %28

17:                                               ; preds = %11
  %18 = load ptr, ptr %6, align 8, !tbaa !5
  %19 = call noundef i32 @_ZNK4juce7MPEZone16getMasterChannelEv(ptr noundef nonnull align 4 dereferenceable(16) %18) #3
  %20 = load i32, ptr %5, align 4, !tbaa !9
  %21 = icmp eq i32 %19, %20
  br i1 %21, label %22, label %24

22:                                               ; preds = %17
  %23 = load ptr, ptr %6, align 8, !tbaa !5
  store ptr %23, ptr %3, align 8
  store i32 1, ptr %7, align 4
  br label %28

24:                                               ; preds = %17
  br label %25

25:                                               ; preds = %24
  %26 = load ptr, ptr %6, align 8, !tbaa !5
  %27 = getelementptr inbounds %"struct.juce::MPEZone", ptr %26, i32 1
  store ptr %27, ptr %6, align 8, !tbaa !5
  br label %11, !llvm.loop !11

28:                                               ; preds = %22, %16
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  %29 = load i32, ptr %7, align 4
  switch i32 %29, label %33 [
    i32 2, label %30
    i32 1, label %31
  ]

30:                                               ; preds = %28
  store ptr null, ptr %3, align 8
  br label %31

31:                                               ; preds = %30, %28
  %32 = load ptr, ptr %3, align 8
  ret ptr %32

33:                                               ; preds = %28
  unreachable
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK4juce5ArrayINS_7MPEZoneENS_20DummyCriticalSectionELi0EE5beginEv(ptr noundef nonnull align 8 dereferenceable(20)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK4juce5ArrayINS_7MPEZoneENS_20DummyCriticalSectionELi0EE3endEv(ptr noundef nonnull align 8 dereferenceable(20)) #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = { 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 nounwind uwtable
declare dso_local noundef i32 @_ZNK4juce7MPEZone16getMasterChannelEv(ptr noundef nonnull align 4 dereferenceable(16)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef ptr @_ZNK4juce13MPEZoneLayout22getZoneByMasterChannelEi(ptr noundef nonnull align 8 dereferenceable(128) %0, i32 noundef %1) local_unnamed_addr #0 align 2 {
  %3 = tail call noundef ptr @_ZNK4juce5ArrayINS_7MPEZoneENS_20DummyCriticalSectionELi0EE5beginEv(ptr noundef nonnull align 8 dereferenceable(20) %0) #2
  %4 = tail call noundef ptr @_ZNK4juce5ArrayINS_7MPEZoneENS_20DummyCriticalSectionELi0EE3endEv(ptr noundef nonnull align 8 dereferenceable(20) %0) #2
  %.not9 = icmp eq ptr %3, %4
  br i1 %.not9, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %7
  %.0710 = phi ptr [ %8, %7 ], [ %3, %2 ]
  %5 = tail call noundef i32 @_ZNK4juce7MPEZone16getMasterChannelEv(ptr noundef nonnull align 4 dereferenceable(16) %.0710) #2
  %6 = icmp eq i32 %5, %1
  br i1 %6, label %._crit_edge, label %7

7:                                                ; preds = %.lr.ph
  %8 = getelementptr inbounds i8, ptr %.0710, i64 16
  %9 = tail call noundef ptr @_ZNK4juce5ArrayINS_7MPEZoneENS_20DummyCriticalSectionELi0EE3endEv(ptr noundef nonnull align 8 dereferenceable(20) %0) #2
  %.not = icmp eq ptr %8, %9
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5

._crit_edge:                                      ; preds = %7, %.lr.ph, %2
  %spec.select = phi ptr [ null, %2 ], [ %.0710, %.lr.ph ], [ null, %7 ]
  ret ptr %spec.select
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK4juce5ArrayINS_7MPEZoneENS_20DummyCriticalSectionELi0EE5beginEv(ptr noundef nonnull align 8 dereferenceable(20)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK4juce5ArrayINS_7MPEZoneENS_20DummyCriticalSectionELi0EE3endEv(ptr noundef nonnull align 8 dereferenceable(20)) local_unnamed_addr #1 align 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 = { 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 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass