Instead of passing in an unsigned value for the optimization level, use an enum,

which better identifies what the optimization is doing. And is more flexible for
future uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70440 91177308-0d34-0410-b5e6-96231b3b80d8

lib/ExecutionEngine/JIT/TargetSelect.cpp

@@ -42,7 +42,8 @@ MAttrs("mattr",
 /// available for the current target.  Otherwise, return null.
 ///
 ExecutionEngine *JIT::createJIT(ModuleProvider *MP, std::string *ErrorStr,
-                                JITMemoryManager *JMM, unsigned OptLevel) {
+                                JITMemoryManager *JMM,
+                                CodeGenOpt::Level OptLevel) {
   const TargetMachineRegistry::entry *TheArch = MArch;
   if (TheArch == 0) {
     std::string Error;