From c5e3647f3cc663d20d8285fa16aa48c44d08218c Mon Sep 17 00:00:00 2001 From: Adrian Prantl Date: Wed, 3 Jan 2018 19:10:21 +0000 Subject: -gmodules: Emit debug info for implicit module imports via #include. When a type is only used as a template parameter and that type is the only type imported from another #include'd module, no skeleton CU for that module is generated, so a consumer doesn't know where to find the type definition. By emitting an import declaration, we can force a skeleton CU to be generated for each imported module. rdar://problem/36266156 llvm-svn: 321754 --- clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp') diff --git a/clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp b/clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp index cb695e7..150b64f 100644 --- a/clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp +++ b/clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp @@ -228,6 +228,11 @@ public: Builder->getModuleDebugInfo()->completeRequiredType(RD); } + void HandleImplicitImportDecl(ImportDecl *D) override { + if (!D->getImportedOwningModule()) + Builder->getModuleDebugInfo()->EmitImportDecl(*D); + } + /// Emit a container holding the serialized AST. void HandleTranslationUnit(ASTContext &Ctx) override { assert(M && VMContext && Builder); -- cgit v1.1