; LLVM IR from modlfo/AudioEngine :: AudioEngine/JuceLibraryCode/juce_audio_basics.ll (ZN4juce9IIRFilterC2Ev)

; 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::IIRFilter" = type <{ %"class.juce::SpinLock", %"class.juce::IIRCoefficients", float, float, i8, [3 x i8] }>
%"class.juce::SpinLock" = type { %"class.juce::Atomic" }
%"class.juce::Atomic" = type { i32, [4 x i8] }
%"class.juce::IIRCoefficients" = type { [5 x float] }

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN4juce9IIRFilterC2Ev(ptr noundef nonnull align 8 dereferenceable(37) %0) unnamed_addr #0 align 2 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8
  %4 = getelementptr inbounds %"class.juce::IIRFilter", ptr %3, i32 0, i32 0
  call void @_ZN4juce8SpinLockC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %4) #2
  %5 = getelementptr inbounds %"class.juce::IIRFilter", ptr %3, i32 0, i32 1
  call void @_ZN4juce15IIRCoefficientsC1Ev(ptr noundef nonnull align 4 dereferenceable(20) %5) #2
  %6 = getelementptr inbounds %"class.juce::IIRFilter", ptr %3, i32 0, i32 2
  store float 0.000000e+00, ptr %6, align 4, !tbaa !9
  %7 = getelementptr inbounds %"class.juce::IIRFilter", ptr %3, i32 0, i32 3
  store float 0.000000e+00, ptr %7, align 8, !tbaa !17
  %8 = getelementptr inbounds %"class.juce::IIRFilter", ptr %3, i32 0, i32 4
  store i8 0, ptr %8, align 4, !tbaa !18
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4juce8SpinLockC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

declare void @_ZN4juce15IIRCoefficientsC1Ev(ptr)

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 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !15, i64 28}
!10 = !{!"_ZTSN4juce9IIRFilterE", !11, i64 0, !14, i64 8, !15, i64 28, !15, i64 32, !16, i64 36}
!11 = !{!"_ZTSN4juce8SpinLockE", !12, i64 0}
!12 = !{!"_ZTSN4juce6AtomicIiEE", !13, i64 0}
!13 = !{!"int", !7, i64 0}
!14 = !{!"_ZTSN4juce15IIRCoefficientsE", !7, i64 0}
!15 = !{!"float", !7, i64 0}
!16 = !{!"bool", !7, i64 0}
!17 = !{!10, !15, i64 32}
!18 = !{!10, !16, i64 36}


; 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
define dso_local void @_ZN4juce9IIRFilterC2Ev(ptr noundef nonnull align 8 dereferenceable(37) %0) unnamed_addr #0 align 2 {
  tail call void @_ZN4juce8SpinLockC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %0) #3
  %2 = getelementptr inbounds i8, ptr %0, i64 8
  tail call void @_ZN4juce15IIRCoefficientsC1Ev(ptr noundef nonnull align 4 dereferenceable(20) %2) #3
  %3 = getelementptr inbounds i8, ptr %0, i64 28
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 4 dereferenceable(9) %3, i8 0, i64 9, i1 false)
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN4juce8SpinLockC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #1 align 2

declare void @_ZN4juce15IIRCoefficientsC1Ev(ptr) local_unnamed_addr

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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)"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InstCombinePass,MemCpyOptPass,SROAPass,TailCallElimPass