// RUN: mlir-opt %s -transform-interpreter -split-input-file -verify-diagnostics

func.func @non_elementwise(%arg0: memref<2x3xf32>, %arg1: memref<3x4xf32>, %arg2: memref<2x4xf32>) {
  // expected-error @below {{only elementwise flattening is supported}}
  linalg.matmul ins(%arg0, %arg1 : memref<2x3xf32>, memref<3x4xf32>) outs(%arg2: memref<2x4xf32>)
  return
}

module attributes {transform.with_named_sequence} {
  transform.named_sequence @__transform_main(%arg1: !transform.any_op {transform.readonly}) {
    %0 = transform.structured.match interface{LinalgOp} in %arg1 : (!transform.any_op) -> !transform.any_op
    %flattened = transform.structured.flatten_elementwise %0
      : (!transform.any_op) -> !transform.any_op
    transform.yield
  }
}

// -----

func.func @unsupported_memref(%arg0: memref<32x7xf32, strided<[7, 2]>>, %arg1: memref<32x7xf32, strided<[7, 2]>>, %arg2: memref<32x7xf32, strided<[7, 2]>>) {
  // expected-error @below {{attempted to flatten, but failed}}
    linalg.map {arith.addf} ins(%arg0, %arg1: memref<32x7xf32, strided<[7, 2]>>, memref<32x7xf32, strided<[7, 2]>>) outs(%arg2: memref<32x7xf32, strided<[7, 2]>>)
    return
}

module attributes {transform.with_named_sequence} {
  transform.named_sequence @__transform_main(%arg1: !transform.any_op {transform.readonly}) {
    %0 = transform.structured.match interface{LinalgOp} in %arg1 : (!transform.any_op) -> !transform.any_op
    %flattened = transform.structured.flatten_elementwise %0
      : (!transform.any_op) -> !transform.any_op
    transform.yield
  }
}