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-rw-r--r--lib/Serialization/ASTWriter.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Serialization/ASTWriter.cpp b/lib/Serialization/ASTWriter.cpp
index e90640711f..b85aac1cc9 100644
--- a/lib/Serialization/ASTWriter.cpp
+++ b/lib/Serialization/ASTWriter.cpp
@@ -911,6 +911,7 @@ void ASTWriter::WriteLanguageOptions(const LangOptions &LangOpts) {
Record.push_back(LangOpts.Exceptions); // Support exception handling.
Record.push_back(LangOpts.SjLjExceptions);
+ Record.push_back(LangOpts.MSBitfields); // MS-compatible structure layout
Record.push_back(LangOpts.NeXTRuntime); // Use NeXT runtime.
Record.push_back(LangOpts.Freestanding); // Freestanding implementation
Record.push_back(LangOpts.NoBuiltin); // Do not use builtin functions (-fno-builtin)