; 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::MPESynthesiser" = type { %"struct.juce::MPESynthesiserBase.base", %"class.juce::OwnedArray.72", i8, %"class.juce::CriticalSection" }
%"struct.juce::MPESynthesiserBase.base" = type <{ %"class.juce::MPEInstrument::Listener", %"class.juce::ScopedPointer", %"class.juce::CriticalSection", double, i32, i8 }>
%"class.juce::MPEInstrument::Listener" = type { ptr }
%"class.juce::ScopedPointer" = type { ptr }
%"class.juce::OwnedArray.72" = type { %"class.juce::ArrayAllocationBase.73", i32, [4 x i8] }
%"class.juce::ArrayAllocationBase.73" = type <{ %"class.juce::HeapBlock.74", i32, [4 x i8] }>
%"class.juce::HeapBlock.74" = type { ptr }
%"class.juce::CriticalSection" = type { %union.pthread_mutex_t }
%union.pthread_mutex_t = type { %struct.__pthread_mutex_s }
%struct.__pthread_mutex_s = type { i32, i32, i32, i32, i32, i16, i16, %struct.__pthread_internal_list }
%struct.__pthread_internal_list = type { ptr, 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4juce10OwnedArrayINS_19MPESynthesiserVoiceENS_20DummyCriticalSectionEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(20)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK4juce10OwnedArrayINS_19MPESynthesiserVoiceENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20), i32 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4juce14MPESynthesiser18renderNextSubBlockERNS_11AudioBufferIfEEii(ptr noundef nonnull align 8 dereferenceable(144) %0, ptr noundef nonnull align 8 dereferenceable(289) %1, i32 noundef %2, i32 noundef %3) unnamed_addr #2 align 2 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !9
  store i32 %3, ptr %8, align 4, !tbaa !9
  %11 = load ptr, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %12 = getelementptr inbounds %"class.juce::MPESynthesiser", ptr %11, i32 0, i32 1
  %13 = call noundef i32 @_ZNK4juce10OwnedArrayINS_19MPESynthesiserVoiceENS_20DummyCriticalSectionEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(20) %12) #3
  store i32 %13, ptr %9, align 4, !tbaa !9
  br label %14

14:                                               ; preds = %36, %4
  %15 = load i32, ptr %9, align 4, !tbaa !9
  %16 = add nsw i32 %15, -1
  store i32 %16, ptr %9, align 4, !tbaa !9
  %17 = icmp sge i32 %16, 0
  br i1 %17, label %19, label %18

18:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  br label %37

19:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %20 = getelementptr inbounds %"class.juce::MPESynthesiser", ptr %11, i32 0, i32 1
  %21 = load i32, ptr %9, align 4, !tbaa !9
  %22 = call noundef ptr @_ZNK4juce10OwnedArrayINS_19MPESynthesiserVoiceENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20) %20, i32 noundef %21) #3
  store ptr %22, ptr %10, align 8, !tbaa !5
  %23 = load ptr, ptr %10, align 8, !tbaa !5
  %24 = load ptr, ptr %23, align 8, !tbaa !11
  %25 = getelementptr inbounds ptr, ptr %24, i64 2
  %26 = load ptr, ptr %25, align 8
  %27 = call noundef zeroext i1 %26(ptr noundef nonnull align 8 dereferenceable(60) %23)
  br i1 %27, label %28, label %36

28:                                               ; preds = %19
  %29 = load ptr, ptr %10, align 8, !tbaa !5
  %30 = load ptr, ptr %6, align 8, !tbaa !5
  %31 = load i32, ptr %7, align 4, !tbaa !9
  %32 = load i32, ptr %8, align 4, !tbaa !9
  %33 = load ptr, ptr %29, align 8, !tbaa !11
  %34 = getelementptr inbounds ptr, ptr %33, i64 9
  %35 = load ptr, ptr %34, align 8
  call void %35(ptr noundef nonnull align 8 dereferenceable(60) %29, ptr noundef nonnull align 8 dereferenceable(289) %30, i32 noundef %31, i32 noundef %32)
  br label %36

36:                                               ; preds = %28, %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  br label %14, !llvm.loop !13

37:                                               ; preds = %18
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!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 = !{!12, !12, i64 0}
!12 = !{!"vtable pointer", !8, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4juce10OwnedArrayINS_19MPESynthesiserVoiceENS_20DummyCriticalSectionEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(20)) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK4juce10OwnedArrayINS_19MPESynthesiserVoiceENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20), i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4juce14MPESynthesiser18renderNextSubBlockERNS_11AudioBufferIfEEii(ptr noundef nonnull align 8 dereferenceable(144) %0, ptr noundef nonnull align 8 dereferenceable(289) %1, i32 noundef %2, i32 noundef %3) unnamed_addr #1 align 2 {
  %5 = getelementptr inbounds i8, ptr %0, i64 72
  %6 = tail call noundef i32 @_ZNK4juce10OwnedArrayINS_19MPESynthesiserVoiceENS_20DummyCriticalSectionEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(20) %5) #2
  %7 = icmp sgt i32 %6, 0
  br i1 %7, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %18, %4
  ret void

.lr.ph:                                           ; preds = %4, %18
  %.in = phi i32 [ %8, %18 ], [ %6, %4 ]
  %8 = add nsw i32 %.in, -1
  %9 = tail call noundef ptr @_ZNK4juce10OwnedArrayINS_19MPESynthesiserVoiceENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20) %5, i32 noundef %8) #2
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  %11 = getelementptr inbounds i8, ptr %10, i64 16
  %12 = load ptr, ptr %11, align 8
  %13 = tail call noundef zeroext i1 %12(ptr noundef nonnull align 8 dereferenceable(60) %9)
  br i1 %13, label %14, label %18

14:                                               ; preds = %.lr.ph
  %15 = load ptr, ptr %9, align 8, !tbaa !5
  %16 = getelementptr inbounds i8, ptr %15, i64 72
  %17 = load ptr, ptr %16, align 8
  tail call void %17(ptr noundef nonnull align 8 dereferenceable(60) %9, ptr noundef nonnull align 8 dereferenceable(289) %1, i32 noundef %2, i32 noundef %3)
  br label %18

18:                                               ; preds = %14, %.lr.ph
  %19 = icmp ugt i32 %.in, 1
  br i1 %19, label %.lr.ph, label %._crit_edge, !llvm.loop !8
}

attributes #0 = { 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 #1 = { 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 #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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


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