bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

Auto merge of #84665 - adamgemmell:aarch64-features, r=Amanieu

Browse source 
Update list of allowed aarch64 features

I recently added these features to std_detect for aarch64 linux, pending [review](https://github.com/rust-lang/stdarch/pull/1146).

I have commented any features not supported by LLVM 9, the current minimum version for Rust. Some (PAuth at least) were renamed between 9 & 12 and I've left them disabled. TME, however, is not in LLVM 9 but I've left it enabled.

See https://github.com/rust-lang/stdarch/issues/993
This commit is contained in:
bors 2021-05-20 13:07:35 +00:00
commit 8a57820bca
3 changed files with 88 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

89
compiler/rustc_codegen_ssa/src/target_features.rs
View file

@ -17,6 +17,8 @@ const ARM_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
("neon", Some(sym::arm_target_feature)),
("crc", Some(sym::arm_target_feature)),
("crypto", Some(sym::arm_target_feature)),
("aes", Some(sym::arm_target_feature)),
("sha2", Some(sym::arm_target_feature)),
("v5te", Some(sym::arm_target_feature)),
("v6", Some(sym::arm_target_feature)),
("v6k", Some(sym::arm_target_feature)),
@ -33,22 +35,95 @@ const ARM_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
("thumb-mode", Some(sym::arm_target_feature)),
];
// Commented features are not available in LLVM 10.0, or have since been renamed
const AARCH64_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
("fp", Some(sym::aarch64_target_feature)),
// FEAT_AdvSimd
("neon", Some(sym::aarch64_target_feature)),
("sve", Some(sym::aarch64_target_feature)),
("crc", Some(sym::aarch64_target_feature)),
("crypto", Some(sym::aarch64_target_feature)),
("ras", Some(sym::aarch64_target_feature)),
("lse", Some(sym::aarch64_target_feature)),
("rdm", Some(sym::aarch64_target_feature)),
// FEAT_FP
("fp", Some(sym::aarch64_target_feature)),
// FEAT_FP16
("fp16", Some(sym::aarch64_target_feature)),
// FEAT_SVE
("sve", Some(sym::aarch64_target_feature)),
// FEAT_CRC
("crc", Some(sym::aarch64_target_feature)),
// Cryptographic extension
("crypto", Some(sym::aarch64_target_feature)),
// FEAT_RAS
("ras", Some(sym::aarch64_target_feature)),
// FEAT_LSE
("lse", Some(sym::aarch64_target_feature)),
// FEAT_RDM
("rdm", Some(sym::aarch64_target_feature)),
// FEAT_RCPC
("rcpc", Some(sym::aarch64_target_feature)),
// FEAT_RCPC2
("rcpc2", Some(sym::aarch64_target_feature)),
// FEAT_DotProd
("dotprod", Some(sym::aarch64_target_feature)),
// FEAT_TME
("tme", Some(sym::aarch64_target_feature)),
// FEAT_FHM
("fhm", Some(sym::aarch64_target_feature)),
// FEAT_DIT
("dit", Some(sym::aarch64_target_feature)),
// FEAT_FLAGM
// ("flagm", Some(sym::aarch64_target_feature)),
// FEAT_SSBS
("ssbs", Some(sym::aarch64_target_feature)),
// FEAT_SB
("sb", Some(sym::aarch64_target_feature)),
// FEAT_PAUTH
// ("pauth", Some(sym::aarch64_target_feature)),
// FEAT_DPB
("dpb", Some(sym::aarch64_target_feature)),
// FEAT_DPB2
("dpb2", Some(sym::aarch64_target_feature)),
// FEAT_SVE2
("sve2", Some(sym::aarch64_target_feature)),
// FEAT_SVE2_AES
("sve2-aes", Some(sym::aarch64_target_feature)),
// FEAT_SVE2_SM4
("sve2-sm4", Some(sym::aarch64_target_feature)),
// FEAT_SVE2_SHA3
("sve2-sha3", Some(sym::aarch64_target_feature)),
// FEAT_SVE2_BitPerm
("sve2-bitperm", Some(sym::aarch64_target_feature)),
// FEAT_FRINTTS
("frintts", Some(sym::aarch64_target_feature)),
// FEAT_I8MM
// ("i8mm", Some(sym::aarch64_target_feature)),
// FEAT_F32MM
// ("f32mm", Some(sym::aarch64_target_feature)),
// FEAT_F64MM
// ("f64mm", Some(sym::aarch64_target_feature)),
// FEAT_BF16
// ("bf16", Some(sym::aarch64_target_feature)),
// FEAT_RAND
("rand", Some(sym::aarch64_target_feature)),
// FEAT_BTI
("bti", Some(sym::aarch64_target_feature)),
// FEAT_MTE
("mte", Some(sym::aarch64_target_feature)),
// FEAT_JSCVT
("jsconv", Some(sym::aarch64_target_feature)),
// FEAT_FCMA
("fcma", Some(sym::aarch64_target_feature)),
// FEAT_AES
("aes", Some(sym::aarch64_target_feature)),
// FEAT_SHA1 & FEAT_SHA256
("sha2", Some(sym::aarch64_target_feature)),
// FEAT_SHA512 & FEAT_SHA3
("sha3", Some(sym::aarch64_target_feature)),
// FEAT_SM3 & FEAT_SM4
("sm4", Some(sym::aarch64_target_feature)),
("v8.1a", Some(sym::aarch64_target_feature)),
("v8.2a", Some(sym::aarch64_target_feature)),
("v8.3a", Some(sym::aarch64_target_feature)),
("v8.4a", Some(sym::aarch64_target_feature)),
("v8.5a", Some(sym::aarch64_target_feature)),
// ("v8.6a", Some(sym::aarch64_target_feature)),
// ("v8.7a", Some(sym::aarch64_target_feature)),
];
const X86_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[