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-rw-r--r--clang/lib/AST/MicrosoftMangle.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/clang/lib/AST/MicrosoftMangle.cpp b/clang/lib/AST/MicrosoftMangle.cpp
index 0634319cbd1..930cf00d9e3 100644
--- a/clang/lib/AST/MicrosoftMangle.cpp
+++ b/clang/lib/AST/MicrosoftMangle.cpp
@@ -2599,7 +2599,10 @@ void MicrosoftMangleContextImpl::mangleCXXVFTable(
// NOTE: <cvr-qualifiers> here is always 'B' (const). <storage-class>
// is always '6' for vftables.
MicrosoftCXXNameMangler Mangler(*this, Out);
- Mangler.getStream() << "\01??_7";
+ if (Derived->hasAttr<DLLImportAttr>())
+ Mangler.getStream() << "\01??_S";
+ else
+ Mangler.getStream() << "\01??_7";
Mangler.mangleName(Derived);
Mangler.getStream() << "6B"; // '6' for vftable, 'B' for const.
for (const CXXRecordDecl *RD : BasePath)
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