diff options
| -rw-r--r-- | lib/Serialization/ASTWriter.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Serialization/ASTWriter.cpp b/lib/Serialization/ASTWriter.cpp index c89680e2a6..7e0cdf41d7 100644 --- a/lib/Serialization/ASTWriter.cpp +++ b/lib/Serialization/ASTWriter.cpp @@ -1419,6 +1419,11 @@ void ASTWriter::WriteType(QualType T) { if (Idx.getIndex() == 0) // we haven't seen this type before. Idx = TypeIdx(NextTypeID++); + // If this type comes from a previously-loaded PCH/AST file, don't try to + // write the type again. + if (Idx.getIndex() < FirstTypeID) + return; + // Record the offset for this type. unsigned Index = Idx.getIndex() - FirstTypeID; if (TypeOffsets.size() == Index) |