bors 97717a5618 Auto merge of #83682 - bjorn3:mmap_wrapper, r=cjgillot
Add an Mmap wrapper to rustc_data_structures

This wrapper implements StableAddress and falls back to directly reading the file on wasm32.

Taken from #83640, which I will close due to the perf regression.
2021-04-03 13:23:42 +00:00
..
2021-03-03 11:22:44 +01:00