; LLVM IR from vczh/herodb :: Kernel/Source/Vlpp.ll (ZN2vl6stream12MemoryStreamC2El)

; 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.vl::stream::MemoryStream" = type { %"class.vl::Object", i64, ptr, i64, i64, i64, %"class.vl::stream::IStream" }
%"class.vl::Object" = type { ptr }
%"class.vl::stream::IStream" = type { %"class.vl::Interface" }
%"class.vl::Interface" = type { ptr }

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN2vl6ObjectC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN2vl6stream12MemoryStreamC2El(ptr noundef nonnull align 8 dereferenceable(48) %0, ptr noundef %1, i64 noundef %2) unnamed_addr #1 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i64 %2, ptr %6, align 8, !tbaa !9
  %7 = load ptr, ptr %4, align 8
  %8 = load ptr, ptr %5, align 8
  call void @_ZN2vl6ObjectC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %7) #2
  %9 = load ptr, ptr %8, align 8
  store ptr %9, ptr %7, align 8, !tbaa !11
  %10 = getelementptr inbounds ptr, ptr %8, i64 1
  %11 = load ptr, ptr %10, align 8
  %12 = load ptr, ptr %7, align 8, !tbaa !11
  %13 = getelementptr i8, ptr %12, i64 -24
  %14 = load i64, ptr %13, align 8
  %15 = getelementptr inbounds i8, ptr %7, i64 %14
  store ptr %11, ptr %15, align 8, !tbaa !11
  %16 = getelementptr inbounds ptr, ptr %8, i64 2
  %17 = load ptr, ptr %16, align 8
  %18 = load ptr, ptr %7, align 8, !tbaa !11
  %19 = getelementptr i8, ptr %18, i64 -32
  %20 = load i64, ptr %19, align 8
  %21 = getelementptr inbounds i8, ptr %7, i64 %20
  store ptr %17, ptr %21, align 8, !tbaa !11
  %22 = getelementptr inbounds %"class.vl::stream::MemoryStream", ptr %7, i32 0, i32 1
  %23 = load i64, ptr %6, align 8, !tbaa !9
  store i64 %23, ptr %22, align 8, !tbaa !13
  %24 = getelementptr inbounds %"class.vl::stream::MemoryStream", ptr %7, i32 0, i32 2
  store ptr null, ptr %24, align 8, !tbaa !16
  %25 = getelementptr inbounds %"class.vl::stream::MemoryStream", ptr %7, i32 0, i32 3
  store i64 0, ptr %25, align 8, !tbaa !17
  %26 = getelementptr inbounds %"class.vl::stream::MemoryStream", ptr %7, i32 0, i32 4
  store i64 0, ptr %26, align 8, !tbaa !18
  %27 = getelementptr inbounds %"class.vl::stream::MemoryStream", ptr %7, i32 0, i32 5
  store i64 0, ptr %27, align 8, !tbaa !19
  %28 = getelementptr inbounds %"class.vl::stream::MemoryStream", ptr %7, i32 0, i32 1
  %29 = load i64, ptr %28, align 8, !tbaa !13
  %30 = icmp sle i64 %29, 0
  br i1 %30, label %31, label %33

31:                                               ; preds = %3
  %32 = getelementptr inbounds %"class.vl::stream::MemoryStream", ptr %7, i32 0, i32 1
  store i64 65536, ptr %32, align 8, !tbaa !13
  br label %33

33:                                               ; preds = %31, %3
  ret void
}

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 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, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"vtable pointer", !8, i64 0}
!13 = !{!14, !10, i64 8}
!14 = !{!"_ZTSN2vl6stream12MemoryStreamE", !15, i64 0, !10, i64 8, !6, i64 16, !10, i64 24, !10, i64 32, !10, i64 40}
!15 = !{!"_ZTSN2vl6ObjectE"}
!16 = !{!14, !6, i64 16}
!17 = !{!14, !10, i64 24}
!18 = !{!14, !10, i64 32}
!19 = !{!14, !10, i64 40}


; 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 void @_ZN2vl6ObjectC2Ev(ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN2vl6stream12MemoryStreamC2El(ptr noundef nonnull align 8 dereferenceable(48) %0, ptr nocapture noundef readonly %1, i64 noundef %2) unnamed_addr #1 align 2 {
  tail call void @_ZN2vl6ObjectC2Ev(ptr noundef nonnull align 8 dereferenceable(8) %0) #3
  %4 = load ptr, ptr %1, align 8
  store ptr %4, ptr %0, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %1, i64 8
  %6 = load ptr, ptr %5, align 8
  %7 = getelementptr i8, ptr %4, i64 -24
  %8 = load i64, ptr %7, align 8
  %9 = getelementptr inbounds i8, ptr %0, i64 %8
  store ptr %6, ptr %9, align 8, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %1, i64 16
  %11 = load ptr, ptr %10, align 8
  %12 = load ptr, ptr %0, align 8, !tbaa !5
  %13 = getelementptr i8, ptr %12, i64 -32
  %14 = load i64, ptr %13, align 8
  %15 = getelementptr inbounds i8, ptr %0, i64 %14
  store ptr %11, ptr %15, align 8, !tbaa !5
  %16 = getelementptr inbounds i8, ptr %0, i64 8
  store i64 %2, ptr %16, align 8, !tbaa !8
  %17 = getelementptr inbounds i8, ptr %0, i64 16
  %18 = icmp slt i64 %2, 1
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(32) %17, i8 0, i64 32, i1 false)
  br i1 %18, label %19, label %20

19:                                               ; preds = %3
  store i64 65536, ptr %16, align 8, !tbaa !8
  br label %20

20:                                               ; preds = %19, %3
  ret void
}

; 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 = { 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 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)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !11, i64 8}
!9 = !{!"_ZTSN2vl6stream12MemoryStreamE", !10, i64 0, !11, i64 8, !13, i64 16, !11, i64 24, !11, i64 32, !11, i64 40}
!10 = !{!"_ZTSN2vl6ObjectE"}
!11 = !{!"long", !12, i64 0}
!12 = !{!"omnipotent char", !7, i64 0}
!13 = !{!"any pointer", !12, i64 0}


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