Add support for lazily linking bitcode files (using a new

-mlink-bitcode-file flag), and more generally llvm::Modules, before
running optimisations.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143314 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/include/clang/CodeGen/CodeGenAction.h b/include/clang/CodeGen/CodeGenAction.h
index f1a2f6eb45..9697bc62af 100644
--- a/include/clang/CodeGen/CodeGenAction.h
+++ b/include/clang/CodeGen/CodeGenAction.h
@@ -25,6 +25,7 @@ class CodeGenAction : public ASTFrontendAction {
 private:
   unsigned Act;
   llvm::OwningPtr<llvm::Module> TheModule;
+  llvm::Module *LinkModule;
   llvm::LLVMContext *VMContext;
   bool OwnsVMContext;
 
@@ -46,6 +47,11 @@ protected:
 public:
   ~CodeGenAction();
 
+  /// setLinkModule - Set the link module to be used by this action.  If a link
+  /// module is not provided, and CodeGenOptions::LinkBitcodeFile is non-empty,
+  /// the action will load it from the specified file.
+  void setLinkModule(llvm::Module *Mod) { LinkModule = Mod; }
+
   /// takeModule - Take the generated LLVM module, for use after the action has
   /// been run. The result may be null on failure.
   llvm::Module *takeModule();