rust/compiler/rustc_session/src/config, branch 1.90.0

compiler: Parse `p-` specs in datalayout string, allow definition of custom default data address space

2025-07-07T07:04:53+00:00

Implement the internal feature `cfg_target_has_reliable_f16_f128`

2025-04-27T19:58:44+00:00

Support for `f16` and `f128` is varied across targets, backends, and backend versions. Eventually we would like to reach a point where all backends support these approximately equally, but until then we have to work around some of these nuances of support being observable. Introduce the `cfg_target_has_reliable_f16_f128` internal feature, which provides the following new configuration gates: * `cfg(target_has_reliable_f16)` * `cfg(target_has_reliable_f16_math)` * `cfg(target_has_reliable_f128)` * `cfg(target_has_reliable_f128_math)` `reliable_f16` and `reliable_f128` indicate that basic arithmetic for the type works correctly. The `_math` versions indicate that anything relying on `libm` works correctly, since sometimes this hits a separate class of codegen bugs. These options match configuration set by the build script at [1]. The logic for LLVM support is duplicated as-is from the same script. There are a few possible updates that will come as a follow up. The config introduced here is not planned to ever become stable, it is only intended to replace the build scripts for `std` tests and `compiler-builtins` that don't have any way to configure based on the codegen backend. MCP: https://github.com/rust-lang/compiler-team/issues/866 Closes: https://github.com/rust-lang/compiler-team/issues/866 [1]: https://github.com/rust-lang/rust/blob/555e1d0386f024a8359645c3217f4b3eae9be042/library/std/build.rs#L84-L186

Add unstable foo::bar extern command line arguments

2025-04-15T20:04:50+00:00

Also refactors some of the crate name parsing code and adds unit tests Issue #122349 Co-authored-by: León Orell Valerian Liehr

Rollup merge of #137072 - Urgau:check-cfg-load-builtins-at-once, r=Noratrieb

2025-02-16T16:14:04+00:00

Load all builtin targets at once instead of one by one in check-cfg This PR adds a method on `rustc_target::Target` to load all the builtin targets at once, and then uses that method when constructing the `target_*` values in check-cfg instead of load loading each target one by one by their name, which requires a lookup and was more of a hack anyway. This may give us some performance improvements as we won't need to do the lookup for the _currently_ 287 targets we have.

Load all builtin targets at once instead of one by one

2025-02-15T17:49:26+00:00

This should give us some performance improvements as we won't need to do the lookup for the _currently_ 287 targets we have.

Rollup merge of #135285 - tbu-:pr_fix_typo4, r=GuillaumeGomez

2025-02-11T17:04:22+00:00

it-self → itself, build-system → build system, type-alias → type alias

Rustfmt

2025-02-08T22:12:13+00:00

Rollup merge of #136152 - Urgau:stabilize-map_many_mut, r=joshtriplett

2025-02-06T20:56:26+00:00

Stabilize `map_many_mut` feature This PR stabilize `HashMap::get_many_mut` as `HashMap::get_disjoint_mut` and `HashMap::get_many_unchecked_mut` as `HashMap::get_disjoint_unchecked_mut` per FCP. FCP at https://github.com/rust-lang/rust/issues/97601#issuecomment-2532710423 Fixes #97601 r? libs

Contracts core intrinsics.

2025-02-03T20:53:57+00:00

These are hooks to: 1. control whether contract checks are run 2. allow 3rd party tools to intercept and reintepret the results of running contracts.

it-self → itself, build-system → build system, type-alias → type alias

2025-01-31T14:13:46+00:00