From 6e511765b6c548e4923621435a25632490aaf57e Mon Sep 17 00:00:00 2001
From: lucylq <lfq@meta.com>
Date: Mon, 9 Dec 2024 17:42:04 -0800
Subject: [PATCH] Update base for Update on "[executorch][passes] Add config
 and pass to tag constants for external file"

- Add config 'external_constants' to ExecutorchBackendConfig.
- When set to True, run the 'external_constants_pass'
- This tags all constants as external, and moves them into a separate buffer to be serialized outside of the PTE file.

Note: users can write their own passes to tag weights to specific files / multiple files.

TODO: write example pass and test for the case where we have two constant files.

Differential Revision: [D66560903](https://our.internmc.facebook.com/intern/diff/D66560903/)

[ghstack-poisoned]