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Auto merge of #110243 - WaffleLapkin:bless_tagged_pointers🙏, r=Nilstrieb

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Tagged pointers, now with strict provenance!

This is a big refactor of tagged pointers in rustc, with three main goals:
1. Porting the code to the strict provenance
2. Cleanup the code
3. Document the code (and safety invariants) better

This PR has grown quite a bit (almost a complete rewrite at this point...), so I'm not sure what's the best way to review this, but reviewing commit-by-commit should be fine.

r? `@Nilstrieb`
This commit is contained in:
bors 2023-04-17 21:50:13 +00:00
commit 7908a1d654
10 changed files with 665 additions and 241 deletions
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1
compiler/rustc_middle/src/lib.rs
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@ -59,6 +59,7 @@
#![feature(result_option_inspect)]
#![feature(const_option)]
#![feature(trait_alias)]
#![feature(ptr_alignment_type)]
#![recursion_limit = "512"]
#![allow(rustc::potential_query_instability)]