diff options
Diffstat (limited to 'lib/Frontend/FrontendAction.cpp')
| -rw-r--r-- | lib/Frontend/FrontendAction.cpp | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/lib/Frontend/FrontendAction.cpp b/lib/Frontend/FrontendAction.cpp index e3d8b85941..5c34e9491b 100644 --- a/lib/Frontend/FrontendAction.cpp +++ b/lib/Frontend/FrontendAction.cpp @@ -20,6 +20,7 @@ #include "clang/Frontend/MultiplexConsumer.h" #include "clang/Parse/ParseAST.h" #include "clang/Serialization/ASTDeserializationListener.h" +#include "clang/Serialization/ChainedIncludesSource.h" #include "llvm/Support/MemoryBuffer.h" #include "llvm/Support/Timer.h" #include "llvm/Support/ErrorHandling.h" @@ -209,8 +210,16 @@ bool FrontendAction::BeginSourceFile(CompilerInstance &CI, CI.getASTContext().setASTMutationListener(Consumer->GetASTMutationListener()); - /// Use PCH? - if (!CI.getPreprocessorOpts().ImplicitPCHInclude.empty()) { + if (!CI.getPreprocessorOpts().ChainedIncludes.empty()) { + // Convert headers to PCH and chain them. + llvm::OwningPtr<ExternalASTSource> source; + source.reset(ChainedIncludesSource::create(CI)); + if (!source) + goto failure; + CI.getASTContext().setExternalSource(source); + + } else if (!CI.getPreprocessorOpts().ImplicitPCHInclude.empty()) { + // Use PCH. assert(hasPCHSupport() && "This action does not have PCH support!"); ASTDeserializationListener *DeserialListener = CI.getInvocation().getFrontendOpts().ChainedPCH ? |