rust/compiler/rustc_const_eval
bors 2f090c30dd Auto merge of #122629 - RalfJung:assert-unsafe-precondition, r=saethlin
refactor check_{lang,library}_ub: use a single intrinsic

This enacts the plan I laid out [here](https://github.com/rust-lang/rust/pull/122282#issuecomment-1996917998): use a single intrinsic, called `ub_checks` (in aniticpation of https://github.com/rust-lang/compiler-team/issues/725), that just exposes the value of `debug_assertions` (consistently implemented in both codegen and the interpreter). Put the language vs library UB logic into the library.

This makes it easier to do something like https://github.com/rust-lang/rust/pull/122282 in the future: that just slightly alters the semantics of `ub_checks` (making it more approximating when crates built with different flags are mixed), but it no longer affects whether these checks can happen in Miri or compile-time.

The first commit just moves things around; I don't think these macros and functions belong into `intrinsics.rs` as they are not intrinsics.

r? `@saethlin`
2024-03-23 21:11:00 +00:00
..
src Auto merge of #122629 - RalfJung:assert-unsafe-precondition, r=saethlin 2024-03-23 21:11:00 +00:00
Cargo.toml Clean up rustc_*/Cargo.toml. 2023-10-30 08:46:02 +11:00
messages.ftl Rename some things around validation error reporting to signal that it is in fact about validation failures 2024-03-14 12:21:35 +00:00