; 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::MidiMessageSequence" = type { %"class.juce::OwnedArray.35" }
%"class.juce::OwnedArray.35" = type { %"class.juce::ArrayAllocationBase.36", i32, [4 x i8] }
%"class.juce::ArrayAllocationBase.36" = type <{ %"class.juce::HeapBlock.37", i32, [4 x i8] }>
%"class.juce::HeapBlock.37" = type { ptr }
%"class.juce::MidiMessageSequence::MidiEventHolder" = type { %"class.juce::MidiMessage", ptr }
%"class.juce::MidiMessage" = type <{ %"union.juce::MidiMessage::PackedData", double, i32, [4 x i8] }>
%"union.juce::MidiMessage::PackedData" = type { ptr }

; 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 zeroext i1 @_ZNK4juce11MidiMessage12isForChannelEi(ptr noundef nonnull align 8 dereferenceable(20), i32 noundef) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4juce10OwnedArrayINS_19MidiMessageSequence15MidiEventHolderENS_20DummyCriticalSectionEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(20)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK4juce10OwnedArrayINS_19MidiMessageSequence15MidiEventHolderENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20), i32 noundef) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4juce10OwnedArrayINS_19MidiMessageSequence15MidiEventHolderENS_20DummyCriticalSectionEE6removeEib(ptr noundef nonnull align 8 dereferenceable(20), i32 noundef, i1 noundef zeroext) #3 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4juce19MidiMessageSequence25deleteMidiChannelMessagesEi(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef %1) #3 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %6 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  %7 = getelementptr inbounds %"class.juce::MidiMessageSequence", ptr %6, i32 0, i32 0
  %8 = call noundef i32 @_ZNK4juce10OwnedArrayINS_19MidiMessageSequence15MidiEventHolderENS_20DummyCriticalSectionEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(20) %7) #4
  store i32 %8, ptr %5, align 4, !tbaa !9
  br label %9

9:                                                ; preds = %24, %2
  %10 = load i32, ptr %5, align 4, !tbaa !9
  %11 = add nsw i32 %10, -1
  store i32 %11, ptr %5, align 4, !tbaa !9
  %12 = icmp sge i32 %11, 0
  br i1 %12, label %14, label %13

13:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  br label %25

14:                                               ; preds = %9
  %15 = getelementptr inbounds %"class.juce::MidiMessageSequence", ptr %6, i32 0, i32 0
  %16 = load i32, ptr %5, align 4, !tbaa !9
  %17 = call noundef ptr @_ZNK4juce10OwnedArrayINS_19MidiMessageSequence15MidiEventHolderENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20) %15, i32 noundef %16) #4
  %18 = getelementptr inbounds %"class.juce::MidiMessageSequence::MidiEventHolder", ptr %17, i32 0, i32 0
  %19 = load i32, ptr %4, align 4, !tbaa !9
  %20 = call noundef zeroext i1 @_ZNK4juce11MidiMessage12isForChannelEi(ptr noundef nonnull align 8 dereferenceable(20) %18, i32 noundef %19) #4
  br i1 %20, label %21, label %24

21:                                               ; preds = %14
  %22 = getelementptr inbounds %"class.juce::MidiMessageSequence", ptr %6, i32 0, i32 0
  %23 = load i32, ptr %5, align 4, !tbaa !9
  call void @_ZN4juce10OwnedArrayINS_19MidiMessageSequence15MidiEventHolderENS_20DummyCriticalSectionEE6removeEib(ptr noundef nonnull align 8 dereferenceable(20) %22, i32 noundef %23, i1 noundef zeroext true)
  br label %24

24:                                               ; preds = %21, %14
  br label %9, !llvm.loop !11

25:                                               ; preds = %13
  ret void
}

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 = { mustprogress 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 #4 = { 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 zeroext i1 @_ZNK4juce11MidiMessage12isForChannelEi(ptr noundef nonnull align 8 dereferenceable(20), i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4juce10OwnedArrayINS_19MidiMessageSequence15MidiEventHolderENS_20DummyCriticalSectionEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(20)) local_unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK4juce10OwnedArrayINS_19MidiMessageSequence15MidiEventHolderENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20), i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN4juce10OwnedArrayINS_19MidiMessageSequence15MidiEventHolderENS_20DummyCriticalSectionEE6removeEib(ptr noundef nonnull align 8 dereferenceable(20), i32 noundef, i1 noundef zeroext) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4juce19MidiMessageSequence25deleteMidiChannelMessagesEi(ptr noundef nonnull align 8 dereferenceable(24) %0, i32 noundef %1) local_unnamed_addr #2 align 2 {
  %3 = tail call noundef i32 @_ZNK4juce10OwnedArrayINS_19MidiMessageSequence15MidiEventHolderENS_20DummyCriticalSectionEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(20) %0) #3
  %4 = icmp sgt i32 %3, 0
  br i1 %4, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %9, %2
  ret void

.lr.ph:                                           ; preds = %2, %9
  %.in = phi i32 [ %5, %9 ], [ %3, %2 ]
  %5 = add nsw i32 %.in, -1
  %6 = tail call noundef ptr @_ZNK4juce10OwnedArrayINS_19MidiMessageSequence15MidiEventHolderENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20) %0, i32 noundef %5) #3
  %7 = tail call noundef zeroext i1 @_ZNK4juce11MidiMessage12isForChannelEi(ptr noundef nonnull align 8 dereferenceable(20) %6, i32 noundef %1) #3
  br i1 %7, label %8, label %9

8:                                                ; preds = %.lr.ph
  tail call void @_ZN4juce10OwnedArrayINS_19MidiMessageSequence15MidiEventHolderENS_20DummyCriticalSectionEE6removeEib(ptr noundef nonnull align 8 dereferenceable(20) %0, i32 noundef %5, i1 noundef zeroext true)
  br label %9

9:                                                ; preds = %8, %.lr.ph
  %10 = icmp ugt i32 %.in, 1
  br i1 %10, label %.lr.ph, label %._crit_edge, !llvm.loop !5
}

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 = { mustprogress 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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