[Mlir-commits] [mlir] [mlir][bufferization] Support custom types at function boundaries (PR #159766)

[Matthias Springer]

================
@@ -43,6 +43,18 @@ def Bufferization_TensorLikeTypeInterface
       /*args=*/(ins
         "::mlir::bufferization::BufferLikeType":$bufferType,
         "::llvm::function_ref<::mlir::InFlightDiagnostic()>":$emitError)
+    >,
+    InterfaceMethod<[{
----------------
matthias-springer wrote:

Why is this interface function necessary? We already have `BufferizationOptions::functionArgTypeConverterFn`. We can change the signature to:

```
  /// Tensor -> MemRef type converter.
  /// Parameters: tensor type, memory space, func op, bufferization options
  using FunctionArgTypeConverterFn =
      std::function<BufferLikeType(TensorLikeType, Attribute memorySpace,
                                   func::FuncOp, const BufferizationOptions &)>;
```

Do you need access to the function? In that case, we can pass an additional `FunctionOpInterface` to the lambda.


https://github.com/llvm/llvm-project/pull/159766