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Rollup merge of #93745 - tarcieri:stabilize-adx, r=cjgillot

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Stabilize ADX target feature

This is a continuation of #60109, which noted that while the ADX intrinsics were stabilized, the corresponding target feature never was.

This PR follows the same general structure and stabilizes the ADX target feature.

See also https://github.com/rust-lang/rust/issues/44839 - tracking issue for target feature
This commit is contained in:
Dylan DPC 2022-03-17 22:55:01 +01:00 committed by GitHub
commit 07121c88ad
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4 changed files with 4 additions and 3 deletions
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2
compiler/rustc_codegen_ssa/src/target_features.rs
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@ -148,7 +148,7 @@ const AARCH64_TIED_FEATURES: &[&[&str]] = &[
];
const X86_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
("adx", Some(sym::adx_target_feature)),
("adx", None),
("aes", None),
("avx", None),
("avx2", None),

2
compiler/rustc_feature/src/accepted.rs
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@ -51,6 +51,8 @@ declare_features! (
/// Allows the sysV64 ABI to be specified on all platforms
/// instead of just the platforms on which it is the C ABI.
(accepted, abi_sysv64, "1.24.0", Some(36167), None),
/// Allows using ADX intrinsics from `core::arch::{x86, x86_64}`.
(accepted, adx_target_feature, "1.61.0", Some(44839), None),
/// Allows the definition of associated constants in `trait` or `impl` blocks.
(accepted, associated_consts, "1.20.0", Some(29646), None),
/// Allows using associated `type`s in `trait`s.

1
compiler/rustc_typeck/src/collect.rs
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@ -2689,7 +2689,6 @@ fn from_target_feature(
Some(sym::tbm_target_feature) => rust_features.tbm_target_feature,
Some(sym::wasm_target_feature) => rust_features.wasm_target_feature,
Some(sym::cmpxchg16b_target_feature) => rust_features.cmpxchg16b_target_feature,
Some(sym::adx_target_feature) => rust_features.adx_target_feature,
Some(sym::movbe_target_feature) => rust_features.movbe_target_feature,
Some(sym::rtm_target_feature) => rust_features.rtm_target_feature,
Some(sym::f16c_target_feature) => rust_features.f16c_target_feature,

2
library/core/src/lib.rs
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@ -207,7 +207,6 @@
//
// Target features:
#![cfg_attr(bootstrap, feature(aarch64_target_feature))]
#![feature(adx_target_feature)]
#![feature(arm_target_feature)]
#![feature(avx512_target_feature)]
#![feature(cmpxchg16b_target_feature)]
@ -219,6 +218,7 @@
#![feature(sse4a_target_feature)]
#![feature(tbm_target_feature)]
#![feature(wasm_target_feature)]
#![cfg_attr(bootstrap, feature(adx_target_feature))]
// allow using `core::` in intra-doc links
#[allow(unused_extern_crates)]