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Update list of allowed aarch64 features

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These features were recently added to std_detect. Features not supported
by LLVM 9, the current minimum version for Rust, are commented.
This commit is contained in:
Adam Gemmell 2021-04-28 17:54:44 +01:00
parent 20040fa332
commit 3f5f54cd8b
2 changed files with 86 additions and 7 deletions
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6
compiler/rustc_codegen_llvm/src/llvm_util.rs
View File

@ -152,6 +152,12 @@ pub fn to_llvm_feature<'a>(sess: &Session, s: &'a str) -> &'a str {
("x86", "avx512vpclmulqdq") => "vpclmulqdq",
("aarch64", "fp") => "fp-armv8",
("aarch64", "fp16") => "fullfp16",
("aarch64", "fhm") => "fp16fml",
("aarch64", "lse2") => "outline-atomics",
("aarch64", "rcpc2") => "rcpc-immo",
("aarch64", "dpb") => "ccpp",
("aarch64", "dpb2") => "ccdp",
("aarch64", "fcma") => "complxnum",
(_, s) => s,
}
}

87
compiler/rustc_codegen_ssa/src/target_features.rs
View File

@ -33,22 +33,95 @@ const ARM_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
("thumb-mode", Some(sym::arm_target_feature)),
];
// Commented features are not available in LLVM 9.0, 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_LSE2
// ("lse2", 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
("fptoint", 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_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>)] = &[