make -fmodules-codegen and -fmodules-debuginfo work also with PCHs

Allow to build PCH's (with -building-pch-with-obj and the extra .o file)
with -fmodules-codegen -fmodules-debuginfo to allow emitting shared code
into the extra .o file, similarly to how it works with modules. A bit of
a misnomer, but the underlying functionality is the same. This saves up
to 20% of build time here.

Differential Revision: https://reviews.llvm.org/D69778

1 files changed, 2 insertions, 2 deletions

diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index aebdfa90706..6eba48a1abe 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -5583,8 +5583,8 @@ void ASTRecordWriter::AddCXXDefinitionData(const CXXRecordDecl *D) {
 
   // getODRHash will compute the ODRHash if it has not been previously computed.
   Record->push_back(D->getODRHash());
-  bool ModulesDebugInfo = Writer->Context->getLangOpts().ModulesDebugInfo &&
-                          Writer->WritingModule && !D->isDependentType();
+  bool ModulesDebugInfo =
+      Writer->Context->getLangOpts().ModulesDebugInfo && !D->isDependentType();
   Record->push_back(ModulesDebugInfo);
   if (ModulesDebugInfo)
     Writer->ModularCodegenDecls.push_back(Writer->GetDeclRef(D));