[llvm] [InlineAsm] wrap ConstraintCode in enum class NFC (PR #66003)

[Min-Yih Hsu via llvm-commits]

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@@ -204,11 +204,12 @@ M68kTargetLowering::getExceptionSelectorRegister(const Constant *) const {
   return M68k::D1;
 }
 
-unsigned
+InlineAsm::ConstraintCode
 M68kTargetLowering::getInlineAsmMemConstraint(StringRef ConstraintCode) const {
-  return StringSwitch<unsigned>(ConstraintCode)
-      .Case("Q", InlineAsm::Constraint_Q)
-      .Case("U", InlineAsm::Constraint_Um) // We borrow Constraint_Um for 'U'.
+  return StringSwitch<InlineAsm::ConstraintCode>(ConstraintCode)
+      .Case("Q", InlineAsm::ConstraintCode::Q)
+      .Case("U",
+            InlineAsm::ConstraintCode::Um) // We borrow Constraint_Um for 'U'.
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mshockwave wrote:

nit: "We borrow Constraint::Um for 'U'"

https://github.com/llvm/llvm-project/pull/66003