rust/compiler/rustc_monomorphize/src
bors 6faf0bd3e5 Auto merge of #127731 - veluca93:abi_checks, r=RalfJung
Emit future-incompatibility lint when calling/declaring functions with vectors that require missing target feature

On some architectures, vector types may have a different ABI depending on whether the relevant target features are enabled. (The ABI when the feature is disabled is often not specified, but LLVM implements some de-facto ABI.)

As discussed in https://github.com/rust-lang/lang-team/issues/235, this turns out to very easily lead to unsound code.

This commit makes it a post-monomorphization error to declare or call functions using those vector types in a context in which the corresponding target features are disabled, if using an ABI for which the difference is relevant. This ensures that these functions are always called with a consistent ABI.

See the [nomination comment](https://github.com/rust-lang/rust/pull/127731#issuecomment-2288558187) for more discussion.

r? RalfJung

Part of https://github.com/rust-lang/rust/issues/116558
2024-10-25 15:17:47 +00:00
..
collector Emit error when calling/declaring functions with unavailable vectors. 2024-10-25 08:46:40 +02:00
collector.rs Auto merge of #127731 - veluca93:abi_checks, r=RalfJung 2024-10-25 15:17:47 +00:00
errors.rs Emit error when calling/declaring functions with unavailable vectors. 2024-10-25 08:46:40 +02:00
lib.rs Dogfood feature(file_buffered) 2024-09-24 14:25:16 -07:00
partitioning.rs Add fast-path when computing the default visibility 2024-10-14 16:37:54 +02:00
polymorphize.rs Reformat using the new identifier sorting from rustfmt 2024-09-22 19:11:29 -04:00
util.rs Reformat use declarations. 2024-07-29 08:26:52 +10:00