; LLVM IR from glaretechnologies/substrata :: resonance-audio/resonance_audio/utils (buffer_unpartitioner)

; 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.NullLogger = type { i8 }
%"class.vraudio::BufferUnpartitioner" = type { i64, i64, %"class.std::function", ptr, i64 }
%"class.std::function" = type { %"class.std::_Function_base", ptr }
%"class.std::_Function_base" = type { %"union.std::_Any_data", ptr }
%"union.std::_Any_data" = type { %"union.std::_Nocopy_types" }
%"union.std::_Nocopy_types" = type { { i64, i64 } }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7vraudio19BufferUnpartitionerC2EmmSt8functionIFPKNS_11AudioBufferEvEE(ptr noundef nonnull align 8 dereferenceable(64) %0, i64 noundef %1, i64 noundef %2, ptr noundef %3) unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca %class.NullLogger, align 1
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca %class.NullLogger, align 1
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i64 %1, ptr %6, align 8, !tbaa !9
  store i64 %2, ptr %7, align 8, !tbaa !9
  store ptr %3, ptr %8, align 8, !tbaa !5
  %13 = load ptr, ptr %5, align 8
  %14 = getelementptr inbounds %"class.vraudio::BufferUnpartitioner", ptr %13, i32 0, i32 0
  %15 = load i64, ptr %6, align 8, !tbaa !9
  store i64 %15, ptr %14, align 8, !tbaa !11
  %16 = getelementptr inbounds %"class.vraudio::BufferUnpartitioner", ptr %13, i32 0, i32 1
  %17 = load i64, ptr %7, align 8, !tbaa !9
  store i64 %17, ptr %16, align 8, !tbaa !15
  %18 = getelementptr inbounds %"class.vraudio::BufferUnpartitioner", ptr %13, i32 0, i32 2
  call void @_ZNSt8functionIFPKN7vraudio11AudioBufferEvEEC2EOS5_(ptr noundef nonnull align 8 dereferenceable(32) %18, ptr noundef nonnull align 8 dereferenceable(32) %3) #3
  %19 = getelementptr inbounds %"class.vraudio::BufferUnpartitioner", ptr %13, i32 0, i32 3
  store ptr null, ptr %19, align 8, !tbaa !16
  %20 = getelementptr inbounds %"class.vraudio::BufferUnpartitioner", ptr %13, i32 0, i32 4
  store i64 0, ptr %20, align 8, !tbaa !17
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #3
  %21 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZN10NullLogger9GetStreamEv(ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %22 unwind label %25

22:                                               ; preds = %4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #3
  call void @llvm.lifetime.start.p0(i64 1, ptr %12) #3
  %23 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZN10NullLogger9GetStreamEv(ptr noundef nonnull align 1 dereferenceable(1) %12)
          to label %24 unwind label %29

24:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #3
  ret void

25:                                               ; preds = %4
  %26 = landingpad { ptr, i32 }
          cleanup
  %27 = extractvalue { ptr, i32 } %26, 0
  store ptr %27, ptr %10, align 8
  %28 = extractvalue { ptr, i32 } %26, 1
  store i32 %28, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #3
  br label %33

29:                                               ; preds = %22
  %30 = landingpad { ptr, i32 }
          cleanup
  %31 = extractvalue { ptr, i32 } %30, 0
  store ptr %31, ptr %10, align 8
  %32 = extractvalue { ptr, i32 } %30, 1
  store i32 %32, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %12) #3
  br label %33

33:                                               ; preds = %29, %25
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %18) #3
  br label %34

34:                                               ; preds = %33
  %35 = load ptr, ptr %10, align 8
  %36 = load i32, ptr %11, align 4
  %37 = insertvalue { ptr, i32 } poison, ptr %35, 0
  %38 = insertvalue { ptr, i32 } %37, i32 %36, 1
  resume { ptr, i32 } %38
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt8functionIFPKN7vraudio11AudioBufferEvEEC2EOS5_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN10NullLogger9GetStreamEv(ptr noundef nonnull align 1 dereferenceable(1)) #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

attributes #0 = { 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 #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTSN7vraudio19BufferUnpartitionerE", !10, i64 0, !10, i64 8, !13, i64 16, !6, i64 48, !10, i64 56}
!13 = !{!"_ZTSSt8functionIFPKN7vraudio11AudioBufferEvEE", !14, i64 0, !6, i64 24}
!14 = !{!"_ZTSSt14_Function_base", !7, i64 0, !6, i64 16}
!15 = !{!12, !10, i64 8}
!16 = !{!12, !6, i64 48}
!17 = !{!12, !10, i64 56}


; 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"

%class.NullLogger = type { i8 }

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7vraudio19BufferUnpartitionerC2EmmSt8functionIFPKNS_11AudioBufferEvEE(ptr noundef nonnull align 8 dereferenceable(64) %0, i64 noundef %1, i64 noundef %2, ptr noundef nonnull %3) unnamed_addr #0 align 2 personality ptr @__gxx_personality_v0 {
  %5 = alloca %class.NullLogger, align 1
  %6 = alloca %class.NullLogger, align 1
  store i64 %1, ptr %0, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %0, i64 8
  store i64 %2, ptr %7, align 8, !tbaa !13
  %8 = getelementptr inbounds i8, ptr %0, i64 16
  tail call void @_ZNSt8functionIFPKN7vraudio11AudioBufferEvEEC2EOS5_(ptr noundef nonnull align 8 dereferenceable(32) %8, ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  %9 = getelementptr inbounds i8, ptr %0, i64 48
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %9, i8 0, i64 16, i1 false)
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #4
  %10 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZN10NullLogger9GetStreamEv(ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %11 unwind label %14

11:                                               ; preds = %4
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #4
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #4
  %12 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZN10NullLogger9GetStreamEv(ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %13 unwind label %16

13:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #4
  ret void

14:                                               ; preds = %4
  %15 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #4
  br label %18

16:                                               ; preds = %11
  %17 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #4
  br label %18

18:                                               ; preds = %16, %14
  %.pn = phi { ptr, i32 } [ %17, %16 ], [ %15, %14 ]
  call void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(32) %8) #4
  resume { ptr, i32 } %.pn
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt8functionIFPKN7vraudio11AudioBufferEvEEC2EOS5_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN10NullLogger9GetStreamEv(ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #0 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt14_Function_baseD2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #3

attributes #0 = { 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 #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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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, !7, i64 0}
!6 = !{!"_ZTSN7vraudio19BufferUnpartitionerE", !7, i64 0, !7, i64 8, !10, i64 16, !12, i64 48, !7, i64 56}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"_ZTSSt8functionIFPKN7vraudio11AudioBufferEvEE", !11, i64 0, !12, i64 24}
!11 = !{!"_ZTSSt14_Function_base", !8, i64 0, !12, i64 16}
!12 = !{!"any pointer", !8, i64 0}
!13 = !{!6, !7, i64 8}


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