[Mlir-commits] [mlir] [mlir][Vector] Improve `vector.mask` verifier (PR #139823)

Diego Caballero llvmlistbot at llvm.org
Fri May 16 15:53:51 PDT 2025


================
@@ -6603,9 +6605,8 @@ LogicalResult MaskOp::verify() {
                        "number of results");
 
   if (!llvm::equal(maskableOp->getResults(), terminator.getOperands()))
-    return emitOpError(
-        "expects all the results from the MaskableOpInterface to "
-        "be returned by the terminator");
+    return emitOpError("expects all the results from the MaskableOpInterface "
+                       "to match all the values returned by the terminator");
----------------
dcaballe wrote:

yes, my intent with this PR is to make clearer that an empty `vector.mask` is not a common valid case to mask operations and that may eventually go away. Let me clarify that a bit better in the doc. We would need the CSE equivalence issue to be fixed and improve some of the existing vector transformations. Definitely a target we should be moving towards.

https://github.com/llvm/llvm-project/pull/139823


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