[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/MachineBlockPlacement.cpp b/llvm/lib/CodeGen/MachineBlockPlacement.cpp
index 912e9ec..24f0197 100644
--- a/llvm/lib/CodeGen/MachineBlockPlacement.cpp
+++ b/llvm/lib/CodeGen/MachineBlockPlacement.cpp
@@ -3376,7 +3376,7 @@ bool MachineBlockPlacement::runOnMachineFunction(MachineFunction &MF) {
   TargetPassConfig *PassConfig = &getAnalysis<TargetPassConfig>();
   // For aggressive optimization, we can adjust some thresholds to be less
   // conservative.
-  if (PassConfig->getOptLevel() >= CodeGenOpt::Aggressive) {
+  if (PassConfig->getOptLevel() >= CodeGenOptLevel::Aggressive) {
     // At O3 we should be more willing to copy blocks for tail duplication. This
     // increases size pressure, so we only do it at O3
     // Do this unless only the regular threshold is explicitly set.
@@ -3388,7 +3388,7 @@ bool MachineBlockPlacement::runOnMachineFunction(MachineFunction &MF) {
   // If there's no threshold provided through options, query the target
   // information for a threshold instead.
   if (TailDupPlacementThreshold.getNumOccurrences() == 0 &&
-      (PassConfig->getOptLevel() < CodeGenOpt::Aggressive ||
+      (PassConfig->getOptLevel() < CodeGenOptLevel::Aggressive ||
        TailDupPlacementAggressiveThreshold.getNumOccurrences() == 0))
     TailDupSize = TII->getTailDuplicateSize(PassConfig->getOptLevel());