Add printVersion(). Linker can use it to print LLVM version number.

llvm-svn: 33738

2 files changed, 6 insertions, 0 deletions

diff --git a/llvm/include/llvm/LinkTimeOptimizer.h b/llvm/include/llvm/LinkTimeOptimizer.h
index 50c1613eb00..164232d2098 100644
--- a/llvm/include/llvm/LinkTimeOptimizer.h
+++ b/llvm/include/llvm/LinkTimeOptimizer.h
@@ -96,6 +96,7 @@ namespace llvm {
                                            const char *) = 0;
     virtual void getTargetTriple(const std::string &, std::string &) = 0;
     virtual void removeModule (const std::string &InputFilename) = 0;
+    virtual void printVersion () = 0;
     virtual ~LinkTimeOptimizer() = 0;
   };
 
@@ -119,6 +120,7 @@ namespace llvm {
     void getTargetTriple(const std::string &InputFilename, 
                          std::string &targetTriple);
     void removeModule (const std::string &InputFilename);
+    void printVersion();
 
     // Constructors and destructors
     LTO() { 
diff --git a/llvm/tools/lto/lto.cpp b/llvm/tools/lto/lto.cpp
index d280f23940e..f3688b47027 100644
--- a/llvm/tools/lto/lto.cpp
+++ b/llvm/tools/lto/lto.cpp
@@ -457,6 +457,10 @@ LTO::optimizeModules(const std::string &OutputFilename,
   return LTO_OPT_SUCCESS;
 }
 
+void LTO::printVersion() {
+    cl::PrintVersionMessage();
+}
+
 /// Unused pure-virtual destructor. Must remain empty.
 LinkTimeOptimizer::~LinkTimeOptimizer() {}