[llvm] [DAG] ISD::matchUnaryPredicate / matchUnaryFpPredicate / matchBinaryPredicate - add DemandedElts variant (PR #183013)

[Simon Pilgrim via llvm-commits]

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@@ -6173,7 +6166,8 @@ bool SelectionDAG::isKnownNeverZero(SDValue Op, const APInt &DemandedElts,
     return !V.isZero();
   };
 
-  if (ISD::matchUnaryPredicate(Op, IsNeverZero))
+  if (ISD::matchUnaryPredicate(Op, DemandedElts, IsNeverZero,
+                               /*AllowUndefs=*/false, /*AllowTruncation=*/true))
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RKSimon wrote:

Any luck triaging the test fails?

https://github.com/llvm/llvm-project/pull/183013