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-rw-r--r--clang/lib/Sema/SemaDeclAttr.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/clang/lib/Sema/SemaDeclAttr.cpp b/clang/lib/Sema/SemaDeclAttr.cpp
index 54e7969e0d4..f0830b8861a 100644
--- a/clang/lib/Sema/SemaDeclAttr.cpp
+++ b/clang/lib/Sema/SemaDeclAttr.cpp
@@ -283,6 +283,9 @@ static bool checkForLockableRecord(Sema &S, Decl *D, const AttributeList &Attr,
<< Attr.getName();
return false;
}
+ // Don't check for lockable if the class hasn't been defined yet.
+ if (RT->isIncompleteType())
+ return true;
// Flag error if the type is not lockable.
if (!RT->getDecl()->getAttr<LockableAttr>()) {
S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_lockable)
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