; LLVM IR from modlfo/AudioEngine :: AudioEngine/JuceLibraryCode/modules/juce_audio_formats/codecs/oggvorbis (readinit)

; 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"

%struct.oggpack_buffer = type { i64, i32, ptr, ptr, i64 }

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #0

; Function Attrs: nounwind uwtable
define dso_local void @oggpack_readinit(ptr noundef %0, ptr noundef %1, i32 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  %7 = load ptr, ptr %4, align 8, !tbaa !5
  call void @llvm.memset.p0.i64(ptr align 8 %7, i8 0, i64 40, i1 false)
  %8 = load ptr, ptr %5, align 8, !tbaa !5
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.oggpack_buffer, ptr %9, i32 0, i32 3
  store ptr %8, ptr %10, align 8, !tbaa !11
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.oggpack_buffer, ptr %11, i32 0, i32 2
  store ptr %8, ptr %12, align 8, !tbaa !14
  %13 = load i32, ptr %6, align 4, !tbaa !9
  %14 = sext i32 %13 to i64
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.oggpack_buffer, ptr %15, i32 0, i32 4
  store i64 %14, ptr %16, align 8, !tbaa !15
  ret void
}

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #1 = { 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" }

!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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 24}
!12 = !{!"", !13, i64 0, !10, i64 8, !6, i64 16, !6, i64 24, !13, i64 32}
!13 = !{!"long", !7, i64 0}
!14 = !{!12, !6, i64 16}
!15 = !{!12, !13, i64 32}


; 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 nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #0

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) uwtable
define dso_local void @oggpack_readinit(ptr nocapture noundef writeonly %0, ptr noundef %1, i32 noundef %2) local_unnamed_addr #1 {
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(40) %0, i8 0, i64 16, i1 false)
  %4 = getelementptr inbounds i8, ptr %0, i64 24
  store ptr %1, ptr %4, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 16
  store ptr %1, ptr %5, align 8, !tbaa !12
  %6 = sext i32 %2 to i64
  %7 = getelementptr inbounds i8, ptr %0, i64 32
  store i64 %6, ptr %7, align 8, !tbaa !13
  ret void
}

attributes #0 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #1 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) 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" }

!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, !11, i64 24}
!6 = !{!"", !7, i64 0, !10, i64 8, !11, i64 16, !11, i64 24, !7, i64 32}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"any pointer", !8, i64 0}
!12 = !{!6, !11, i64 16}
!13 = !{!6, !7, i64 32}


; Effective O3 passes: DSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass