Print registered targets in clang's version information

Summary:
Other llvm tools display their registered targets when showing version
information, but for some reason clang has never done this.

To support this, D33899 adds the llvm parts, which make it possible to
print version information to arbitrary raw_ostreams.  This change adds
a call to printRegisteredTargetsForVersion in clang's PrintVersion, and
adds a raw_ostream parameter to two other PrintVersion functions.

Reviewers: beanz, chandlerc, dberris, mehdi_amini, zturner

Reviewed By: mehdi_amini

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D33900

llvm-svn: 304836

clang/lib/Driver/Driver.cpp

@@ -68,6 +68,7 @@
 #include "llvm/Support/PrettyStackTrace.h"
 #include "llvm/Support/Process.h"
 #include "llvm/Support/Program.h"
+#include "llvm/Support/TargetRegistry.h"
 #include "llvm/Support/raw_ostream.h"
 #include <map>
 #include <memory>
@@ -1116,6 +1117,10 @@ void Driver::PrintVersion(const Compilation &C, raw_ostream &OS) const {
 
   // Print out the install directory.
   OS << "InstalledDir: " << InstalledDir << '\n';
+
+  // Print registered targets.
+  OS << '\n';
+  llvm::TargetRegistry::printRegisteredTargetsForVersion(OS);
 }
 
 /// PrintDiagnosticCategories - Implement the --print-diagnostic-categories

clang/tools/clang-format/ClangFormat.cpp

@@ -328,8 +328,7 @@ static bool format(StringRef FileName) {
 }  // namespace format
 }  // namespace clang
 
-static void PrintVersion() {
-  raw_ostream &OS = outs();
+static void PrintVersion(raw_ostream &OS) {
   OS << clang::getClangToolFullVersion("clang-format") << '\n';
 }
 

clang/tools/clang-offload-bundler/ClangOffloadBundler.cpp

@@ -915,8 +915,7 @@ static bool UnbundleFiles() {
   return false;
 }
 
-static void PrintVersion() {
-  raw_ostream &OS = outs();
+static void PrintVersion(raw_ostream &OS) {
   OS << clang::getClangToolFullVersion("clang-offload-bundler") << '\n';
 }