; LLVM IR from SSBMTonberry/pocketlzma :: ref_spec/lzma1900/CPP/Windows (PropVariant)

; 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.tagPROPVARIANT = type { i16, i16, i16, i16, %union.anon }
%union.anon = type { %struct._LARGE_INTEGER }
%struct._LARGE_INTEGER = type { i64 }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN8NWindows4NCOM12CPropVariant13InternalClearEv(ptr noundef nonnull align 8 dereferenceable(16)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZN8NWindows4NCOM12CPropVariantaSERK9_FILETIME(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef nonnull align 4 dereferenceable(8) %1) #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8
  %6 = getelementptr inbounds %struct.tagPROPVARIANT, ptr %5, i32 0, i32 0
  %7 = load i16, ptr %6, align 8, !tbaa !9
  %8 = zext i16 %7 to i32
  %9 = icmp ne i32 %8, 64
  br i1 %9, label %10, label %13

10:                                               ; preds = %2
  %11 = call noundef i32 @_ZN8NWindows4NCOM12CPropVariant13InternalClearEv(ptr noundef nonnull align 8 dereferenceable(16) %5) #2
  %12 = getelementptr inbounds %struct.tagPROPVARIANT, ptr %5, i32 0, i32 0
  store i16 64, ptr %12, align 8, !tbaa !9
  br label %13

13:                                               ; preds = %10, %2
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.tagPROPVARIANT, ptr %5, i32 0, i32 4
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %15, ptr align 4 %14, i64 8, i1 false), !tbaa.struct !12
  ret ptr %5
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1

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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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, !11, i64 0}
!10 = !{!"_ZTS14tagPROPVARIANT", !11, i64 0, !11, i64 2, !11, i64 4, !11, i64 6, !7, i64 8}
!11 = !{!"short", !7, i64 0}
!12 = !{i64 0, i64 4, !13, i64 4, i64 4, !13}
!13 = !{!14, !14, i64 0}
!14 = !{!"int", !7, i64 0}


; 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
declare dso_local noundef i32 @_ZN8NWindows4NCOM12CPropVariant13InternalClearEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZN8NWindows4NCOM12CPropVariantaSERK9_FILETIME(ptr noundef nonnull returned align 8 dereferenceable(16) %0, ptr nocapture noundef nonnull readonly align 4 dereferenceable(8) %1) local_unnamed_addr #0 align 2 {
  %3 = load i16, ptr %0, align 8, !tbaa !5
  %.not = icmp eq i16 %3, 64
  br i1 %.not, label %6, label %4

4:                                                ; preds = %2
  %5 = tail call noundef i32 @_ZN8NWindows4NCOM12CPropVariant13InternalClearEv(ptr noundef nonnull align 8 dereferenceable(16) %0) #1
  store i16 64, ptr %0, align 8, !tbaa !5
  br label %6

6:                                                ; preds = %4, %2
  %7 = getelementptr inbounds i8, ptr %0, i64 8
  %8 = load i64, ptr %1, align 4
  store i64 %8, ptr %7, align 8
  ret ptr %0
}

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 = { 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 = !{!"_ZTS14tagPROPVARIANT", !7, i64 0, !7, i64 2, !7, i64 4, !7, i64 6, !8, i64 8}
!7 = !{!"short", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}


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