[Mlir-commits] [mlir] [mlir][linalg] do not break outs from block argument (PR #73572)

[Mehdi Amini]

================
@@ -1818,6 +1818,11 @@ struct RemoveOutsDependency : public OpRewritePattern<GenericOp> {
         if (sparse_tensor::getSparseTensorEncoding(operandVal.getType()))
           continue;
 
+        // If outs is wired from a block argument, keep the dependency to
+        // prevent the argument from being optimized away.
----------------
joker-eph wrote:

This comment as-is is weird: why would we not want a block argument to be optimized away? 

https://github.com/llvm/llvm-project/pull/73572