; 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::Synthesiser" = type { ptr, %"class.juce::CriticalSection", %"class.juce::OwnedArray", %"class.juce::ReferenceCountedArray", [16 x i32], double, i32, i32, i8, i8, [6 x i8], %"class.juce::BigInteger" }
%"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 }
%"class.juce::OwnedArray" = type { %"class.juce::ArrayAllocationBase.3", i32, [4 x i8] }
%"class.juce::ArrayAllocationBase.3" = type <{ %"class.juce::HeapBlock.4", i32, [4 x i8] }>
%"class.juce::HeapBlock.4" = type { ptr }
%"class.juce::ReferenceCountedArray" = type { %"class.juce::ArrayAllocationBase.6", i32, [4 x i8] }
%"class.juce::ArrayAllocationBase.6" = type <{ %"class.juce::HeapBlock.7", i32, [4 x i8] }>
%"class.juce::HeapBlock.7" = type { ptr }
%"class.juce::BigInteger" = type <{ %"class.juce::HeapBlock.9", [4 x i32], i64, i32, i8, [3 x i8] }>
%"class.juce::HeapBlock.9" = 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK4juce10OwnedArrayINS_16SynthesiserVoiceENS_20DummyCriticalSectionEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(20)) #1 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZNK4juce10OwnedArrayINS_16SynthesiserVoiceENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20), i32 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4juce11Synthesiser12renderVoicesERNS_11AudioBufferIfEEii(ptr noundef nonnull align 8 dereferenceable(224) %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
  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
  %10 = load ptr, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  %11 = getelementptr inbounds %"class.juce::Synthesiser", ptr %10, i32 0, i32 2
  %12 = call noundef i32 @_ZNK4juce10OwnedArrayINS_16SynthesiserVoiceENS_20DummyCriticalSectionEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(20) %11) #3
  store i32 %12, ptr %9, align 4, !tbaa !9
  br label %13

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

17:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  br label %28

18:                                               ; preds = %13
  %19 = getelementptr inbounds %"class.juce::Synthesiser", ptr %10, i32 0, i32 2
  %20 = load i32, ptr %9, align 4, !tbaa !9
  %21 = call noundef ptr @_ZNK4juce10OwnedArrayINS_16SynthesiserVoiceENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20) %19, i32 noundef %20) #3
  %22 = load ptr, ptr %6, align 8, !tbaa !5
  %23 = load i32, ptr %7, align 4, !tbaa !9
  %24 = load i32, ptr %8, align 4, !tbaa !9
  %25 = load ptr, ptr %21, align 8, !tbaa !11
  %26 = getelementptr inbounds ptr, ptr %25, i64 10
  %27 = load ptr, ptr %26, align 8
  call void %27(ptr noundef nonnull align 8 dereferenceable(344) %21, ptr noundef nonnull align 8 dereferenceable(289) %22, i32 noundef %23, i32 noundef %24)
  br label %13, !llvm.loop !13

28:                                               ; preds = %17
  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_16SynthesiserVoiceENS_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_16SynthesiserVoiceENS_20DummyCriticalSectionEE12getUncheckedEi(ptr noundef nonnull align 8 dereferenceable(20), i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN4juce11Synthesiser12renderVoicesERNS_11AudioBufferIfEEii(ptr noundef nonnull align 8 dereferenceable(224) %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 48
  %6 = tail call noundef i32 @_ZNK4juce10OwnedArrayINS_16SynthesiserVoiceENS_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 = %.lr.ph, %4
  ret void

.lr.ph:                                           ; preds = %4, %.lr.ph
  %.06 = phi i32 [ %8, %.lr.ph ], [ %6, %4 ]
  %8 = add nsw i32 %.06, -1
  %9 = tail call noundef ptr @_ZNK4juce10OwnedArrayINS_16SynthesiserVoiceENS_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 80
  %12 = load ptr, ptr %11, align 8
  tail call void %12(ptr noundef nonnull align 8 dereferenceable(344) %9, ptr noundef nonnull align 8 dereferenceable(289) %1, i32 noundef %2, i32 noundef %3)
  %13 = icmp ugt i32 %.06, 1
  br i1 %13, 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