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
diff --git a/lib/Target/Alpha/AlphaTargetMachine.cpp b/lib/Target/Alpha/AlphaTargetMachine.cpp
index 7a87612..802a803 100644
--- a/lib/Target/Alpha/AlphaTargetMachine.cpp
+++ b/lib/Target/Alpha/AlphaTargetMachine.cpp
@@ -77,25 +77,26 @@
 //===----------------------------------------------------------------------===//
 
 bool AlphaTargetMachine::addInstSelector(PassManagerBase &PM,
-                                         unsigned OptLevel) {
+                                         CodeGenOpt::Level OptLevel) {
   PM.add(createAlphaISelDag(*this));
   return false;
 }
 bool AlphaTargetMachine::addPreEmitPass(PassManagerBase &PM,
-                                        unsigned OptLevel) {
+                                        CodeGenOpt::Level OptLevel) {
   // Must run branch selection immediately preceding the asm printer
   PM.add(createAlphaBranchSelectionPass());
   return false;
 }
 bool AlphaTargetMachine::addAssemblyEmitter(PassManagerBase &PM,
-                                            unsigned OptLevel,
+                                            CodeGenOpt::Level OptLevel,
                                             bool Verbose,
                                             raw_ostream &Out) {
   PM.add(createAlphaLLRPPass(*this));
   PM.add(createAlphaCodePrinterPass(Out, *this, OptLevel, Verbose));
   return false;
 }
-bool AlphaTargetMachine::addCodeEmitter(PassManagerBase &PM, unsigned OptLevel,
+bool AlphaTargetMachine::addCodeEmitter(PassManagerBase &PM,
+                                        CodeGenOpt::Level OptLevel,
                                         bool DumpAsm, MachineCodeEmitter &MCE) {
   PM.add(createAlphaCodeEmitterPass(*this, MCE));
   if (DumpAsm)
@@ -103,7 +104,8 @@
   return false;
 }
 bool AlphaTargetMachine::addSimpleCodeEmitter(PassManagerBase &PM,
-                                              unsigned OptLevel, bool DumpAsm,
+                                              CodeGenOpt::Level OptLevel,
+                                              bool DumpAsm,
                                               MachineCodeEmitter &MCE) {
   return addCodeEmitter(PM, OptLevel, DumpAsm, MCE);
 }