[PDLL] Defining string array attribute statically with AttrExpr

I would like to define an attribute representing a static StrArrayAttr, for example, {“MatMul”, “BiasAdd”}. Does PDLL has support using attribute-expression? like let fused_ops = attr<"...">;

@River707 @Mogball Any idea?

Can you give a sketch of what you’re trying to achieve? I’m having a hard time visualizing it.

@Mogball Thanks for your reply. I am trying to match without a native constraint. Here is the following mlir op that I would like to match:

%result = "my_dialect.my_op"() {fused_ops = ["MatMul", "BiasAdd"]} : () -> (tensor<*xf32>)

So the matcher should match the above, but not the following.

%result = "my_dialect.my_op"() {fused_ops = ["MatMul", "Tanh"]} : () -> (tensor<*xf32>)

@Mogball I just figured out that
The following works for me

Pattern {
  let fused_ops = attr<"[\"MatMul\", \"BiasAdd\"]">;
  replace op<my_dialect.my_op>{fused_ops = fused_ops} with op<my_dialect.bar>
}