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rust/compiler/rustc_hir_analysis
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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 bump itertools to 0.12 2024-03-08 12:34:05 +03:00
messages.ftl Rollup merge of #121258 - fmease:assoc-const-eq-reject-overly-generic-tys, r=compiler-errors 2024-03-18 22:24:36 +01:00
README.md rustc_typeck to rustc_hir_analysis 2022-09-27 10:37:23 +02:00

README.md

For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.