[llvm] [InstCombine] Use InstSimplify in FoldOpIntoSelect (PR #116073)

[Yingwei Zheng via llvm-commits]

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@@ -1715,9 +1708,10 @@ Instruction *InstCombinerImpl::FoldOpIntoSelect(Instruction &Op, SelectInst *SI,
     }
   }
 
-  // Make sure that one of the select arms constant folds successfully.
-  Value *NewTV = constantFoldOperationIntoSelectOperand(Op, SI, /*IsTrueArm*/ true);
-  Value *NewFV = constantFoldOperationIntoSelectOperand(Op, SI, /*IsTrueArm*/ false);
+  // Make sure that one of the select arms folds successfully.
+  Value *NewTV = simplifyOperationIntoSelectOperand(Op, SI, /*IsTrueArm*/ true);
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dtcxzyw wrote:

```suggestion
  Value *NewTV = simplifyOperationIntoSelectOperand(Op, SI, /*IsTrueArm=*/ true);
```

https://github.com/llvm/llvm-project/pull/116073