[llvm] VT: squash compile-time regression from 66badf2 (PR #122700)

[Yingwei Zheng via llvm-commits]

================
@@ -3939,6 +3939,10 @@ std::optional<CmpPredicate> CmpPredicate::getMatching(CmpPredicate A,
   return {};
 }
 
+CmpInst::Predicate CmpPredicate::getSignedPredicate() const {
+  return HasSameSign ? ICmpInst::getFlippedSignednessPredicate(Pred) : Pred;
----------------
dtcxzyw wrote:

```suggestion
  return HasSameSign ? ICmpInst::getSignedPredicate(Pred) : Pred;
```


https://github.com/llvm/llvm-project/pull/122700