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rust/compiler/rustc_codegen_ssa
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Matthias Krüger 904f5795a0
Rollup merge of #128221 - calebzulawski:implied-target-features, r=Amanieu 
Add implied target features to target_feature attribute

See [zulip](https://rust-lang.zulipchat.com/#narrow/stream/208962-t-libs.2Fstdarch/topic/Why.20would.20target-feature.20include.20implied.20features.3F) for some context.  Adds implied target features, e.g. `#[target_feature(enable = "avx2")]` acts like `#[target_feature(enable = "avx2,avx,sse4.2,sse4.1...")]`.  Fixes #128125, fixes #128426

The implied feature sets are taken from [the rust reference](https://doc.rust-lang.org/reference/attributes/codegen.html?highlight=target-fea#x86-or-x86_64), there are certainly more features and targets to add.

Please feel free to reassign this to whoever should review it.

r? ``@Amanieu``
2024-08-07 20:28:16 +02:00
..
src Rollup merge of #128221 - calebzulawski:implied-target-features, r=Amanieu 2024-08-07 20:28:16 +02:00
Cargo.toml Update ar_archive_writer to 0.3.3 2024-08-07 10:52:02 +00:00
messages.ftl Rollup merge of #128206 - bjorn3:import_lib_writing_refactor, r=jieyouxu 2024-08-07 15:59:35 +02:00
README.md mv compiler to compiler/ 2020-08-30 18:45:07 +03:00

README.md

Please read the rustc-dev-guide chapter on Backend Agnostic Codegen.