[clang][modules] Serialize `CodeGenOptions` (#146422)

Some `LangOptions` duplicate their `CodeGenOptions` counterparts. My
understanding is that this was done solely because some infrastructure
(like preprocessor initialization, serialization, module compatibility
checks, etc.) were only possible/convenient for `LangOptions`. This PR
implements the missing support for `CodeGenOptions`, which makes it
possible to remove some duplicate `LangOptions` fields and simplify the
logic. Motivated by https://github.com/llvm/llvm-project/pull/146342.

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/lib/CodeGen/CodeGenAction.cpp b/clang/lib/CodeGen/CodeGenAction.cpp
index 5493cc9..eb5b604 100644
--- a/clang/lib/CodeGen/CodeGenAction.cpp
+++ b/clang/lib/CodeGen/CodeGenAction.cpp
@@ -995,7 +995,7 @@ CodeGenAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
     std::vector<std::unique_ptr<ASTConsumer>> Consumers(2);
     Consumers[0] = std::make_unique<ReducedBMIGenerator>(
         CI.getPreprocessor(), CI.getModuleCache(),
-        CI.getFrontendOpts().ModuleOutputPath);
+        CI.getFrontendOpts().ModuleOutputPath, CI.getCodeGenOpts());
     Consumers[1] = std::move(Result);
     return std::make_unique<MultiplexConsumer>(std::move(Consumers));
   }