Simplify JIT target selection.

- Instead of requiring targets to define a JIT quality match function, we just
   have them specify if they support a JIT.

 - Target selection for the JIT just gets the host triple and looks for the best
   target which matches the triple and has a JIT.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77060 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/CppBackend/TargetInfo/CppBackendTargetInfo.cpp

@@ -14,10 +14,6 @@ using namespace llvm;
 
 Target llvm::TheCppBackendTarget;
 
-static unsigned CppBackend_JITMatchQuality() {
-  return 0;
-}
-
 static unsigned CppBackend_TripleMatchQuality(const std::string &TT) {
   // This class always works, but shouldn't be the default in most cases.
   return 1;
@@ -32,6 +28,5 @@ extern "C" void LLVMInitializeCppBackendTargetInfo() {
   TargetRegistry::RegisterTarget(TheCppBackendTarget, "cpp",    
                                   "C++ backend",
                                   &CppBackend_TripleMatchQuality,
-                                  &CppBackend_ModuleMatchQuality,
-                                  &CppBackend_JITMatchQuality);
+                                  &CppBackend_ModuleMatchQuality);
 }