[ET-VK] Introduce AOT operator registry #6511
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Pull Request resolved: #6488 ## Changes Move the following files to the root directory of Vulkan backend: * `backends/vulkan/partitioner/supported_ops.py` -> `backends/vulkan/op_registry.py` * `backends/vulkan/_passes/custom_ops_defs.py` -> `backends/vulkan/custom_ops_lib.py` In the new `op_registry.py` file, the way operator features are specified is reworked to provide much more detail about the features of the operator implementation in Vulkan. See the new `OpFeatures` class for more details. An example of registering a new operator to the export flow is ``` @update_features( [ exir_ops.edge.aten._log_softmax.default, exir_ops.edge.aten._softmax.default, exir_ops.edge.aten.mean.dim, exir_ops.edge.aten.sum.dim_IntList, exir_ops.edge.aten.amax.default, exir_ops.edge.aten.amin.default, ] ) def register_reduce_op(features: OpFeatures): features.texture_impl = TextureImplFeatures( uses_packed_dim=True, ) features.resize_fn = True def check_reduce_node(node: torch.fx.Node) -> bool: dim_list = node.args[1] assert isinstance(dim_list, list) if len(dim_list) != 1: return False keepdim = node.args[2] assert isinstance(keepdim, bool) if not keepdim: return False return True features.check_node_fn = check_reduce_node return features ``` ## Rationale The purpose of these changes is to centralize operator definitions so that there is a common source of truth about the capabilities of operator implementation in Vulkan. This way, the partitioner does not have to implement ad-hoc functions for specific operators (i.e. `is_valid_to_copy`) and graph transforms do not have to maintain their own operator metadata (`USES_WEIGHTS` in `insert_prepack_nodes`). ghstack-source-id: 250279709 @exported-using-ghexport Differential Revision: [D64915640](https://our.internmc.facebook.com/intern/diff/D64915640/)
🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/6511
Note: Links to docs will display an error until the docs builds have been completed. ❌ 1 New FailureAs of commit d1fae25 with merge base 16b633b ( NEW FAILURE - The following job has failed:
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This PR was created by the merge bot to help merge the original PR into the main branch.
ghstack PR number: #6488
^ Please use this as the source of truth for the PR details, comments, and reviews
ghstack PR base: https://github.com/pytorch/executorch/tree/gh/SS-JIA/128/base
ghstack PR head: https://github.com/pytorch/executorch/tree/gh/SS-JIA/128/head
Merge bot PR base: https://github.com/pytorch/executorch/tree/main
Merge bot PR head: https://github.com/pytorch/executorch/tree/gh/SS-JIA/128/orig
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