rust/compiler/rustc_middle
bors 2b443a8d97 Auto merge of #100043 - RalfJung:scalar-always-init, r=RalfJung
interpret: remove support for uninitialized scalars

With Miri no longer supporting `-Zmiri-allow-uninit-numbers`, we no longer need to support storing uninit data in a `Scalar`. We anyway already only use this representation for types with *initialized* `Scalar` layout (and we have to, due to partial initialization), so let's get rid of the `ScalarMaybeUninit` type entirely.

I tried to stage this into meaningful commits, but the one that changes `read_immediate` to always trigger UB on uninit is the largest chunk of the PR and I don't see how it could be subdivided.

Fixes https://github.com/rust-lang/miri/issues/2187
r? `@oli-obk`
2022-08-26 21:50:09 +00:00
..
benches
src Auto merge of #100043 - RalfJung:scalar-always-init, r=RalfJung 2022-08-26 21:50:09 +00:00
Cargo.toml
README.md

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