From 35dcda792241569a65db70e555b6dd50c332898b Mon Sep 17 00:00:00 2001 From: Argyrios Kyrtzidis Date: Wed, 9 Mar 2011 17:21:42 +0000 Subject: Introduce '-chain-include' option to specify headers that will be converted to chained PCHs in memory without having to use multiple runs and intermediate files. Intended for testing & debugging of chained PCH. llvm-svn: 127339 --- clang/lib/Frontend/FrontendAction.cpp | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'clang/lib/Frontend/FrontendAction.cpp') diff --git a/clang/lib/Frontend/FrontendAction.cpp b/clang/lib/Frontend/FrontendAction.cpp index e3d8b85..5c34e94 100644 --- a/clang/lib/Frontend/FrontendAction.cpp +++ b/clang/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 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 ? -- cgit v1.1