[NFC][CodeGen] Change CodeGenOpt::Level/CodeGenFileType into enum classes (#66295)

This will make it easy for callers to see issues with and fix up calls
to createTargetMachine after a future change to the params of
TargetMachine.

This matches other nearby enums.

For downstream users, this should be a fairly straightforward
replacement,
e.g. s/CodeGenOpt::Aggressive/CodeGenOptLevel::Aggressive
or s/CGFT_/CodeGenFileType::

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/CodeGen/PrologEpilogInserter.cpp b/llvm/lib/CodeGen/PrologEpilogInserter.cpp
index 6c8be5c..9514a08 100644
--- a/llvm/lib/CodeGen/PrologEpilogInserter.cpp
+++ b/llvm/lib/CodeGen/PrologEpilogInserter.cpp
@@ -1083,7 +1083,7 @@ void PEI::calculateFrameObjectOffsets(MachineFunction &MF) {
                       MaxAlign);
 
   // Give the targets a chance to order the objects the way they like it.
-  if (MF.getTarget().getOptLevel() != CodeGenOpt::None &&
+  if (MF.getTarget().getOptLevel() != CodeGenOptLevel::None &&
       MF.getTarget().Options.StackSymbolOrdering)
     TFI.orderFrameObjects(MF, ObjectsToAllocate);
 
@@ -1093,7 +1093,7 @@ void PEI::calculateFrameObjectOffsets(MachineFunction &MF) {
   // optimizing.
   BitVector StackBytesFree;
   if (!ObjectsToAllocate.empty() &&
-      MF.getTarget().getOptLevel() != CodeGenOpt::None &&
+      MF.getTarget().getOptLevel() != CodeGenOptLevel::None &&
       MFI.getStackProtectorIndex() < 0 && TFI.enableStackSlotScavenging(MF))
     computeFreeStackSlots(MFI, StackGrowsDown, MinCSFrameIndex, MaxCSFrameIndex,
                           FixedCSEnd, StackBytesFree);