[llvm] Add freeze for LowerSELECT (PR #148796)

[Shilei Tian via llvm-commits]

================
@@ -11075,6 +11075,7 @@ SDValue SITargetLowering::LowerSELECT(SDValue Op, SelectionDAG &DAG) const {
 
   SDLoc DL(Op);
   SDValue Cond = Op.getOperand(0);
+  Cond = DAG.getFreeze(Cond);
----------------
shiltian wrote:

```suggestion
  SDValue Cond = DAG.getFreeze(Op.getOperand(0));
```

https://github.com/llvm/llvm-project/pull/148796