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Update aarch64 linux feature detection
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This commit doesn't add support for features not available in LLVM 12
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@adamgemmell
adamgemmell committed Apr 28, 2021
1 parent cfb137b commit 9411f39
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136 changes: 123 additions & 13 deletions crates/std_detect/src/detect/arch/aarch64.rs
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Expand Up @@ -4,35 +4,145 @@ features! {
@TARGET: aarch64;
@MACRO_NAME: is_aarch64_feature_detected;
@MACRO_ATTRS:
/// Checks if `aarch64` feature is enabled.
/// This macro tests, at runtime, whether an `aarch64` feature is enabled on aarch64 platforms.
/// Currently most features are only supported on linux-based platforms.
///
/// This macro takes one argument which is a string literal of the feature being tested for.
/// The feature names are mostly taken from their FEAT_* definitiions in the [ARM Architecture
/// Reference Manual][docs].
///
/// ## Supported arguments
///
/// * `"asimd"` or "neon" - FEAT_AdvSIMD
/// * `"pmull"` - FEAT_PMULL
/// * `"fp"` - FEAT_FP
/// * `"fp16"` - FEAT_FP16
/// * `"sve"` - FEAT_SVE
/// * `"crc"` - FEAT_CRC
/// * `"crypto"` - Cryptographic Extension (AES + PMULL + SHA1 + SHA2-256)
/// * `"lse"` - FEAT_LSE
/// * `"lse2"` - FEAT_LSE2
/// * `"rdm"` - FEAT_RDM
/// * `"rcpc"` - FEAT_LRCPC
/// * `"rcpc2"` - FEAT_LRCPC2
/// * `"dotprod"` - FEAT_DotProd
/// * `"tme"` - FEAT_TME
/// * `"fhm"` - FEAT_FHM
/// * `"dit"` - FEAT_DIT
/// * `"flagm"` - FEAT_FLAGM
/// * `"ssbs"` - FEAT_SSBS
/// * `"sb"` - FEAT_SB
/// * `"pauth"` - FEAT_PAuth
/// * `"dpb"` - FEAT_DPB
/// * `"dpb2"` - FEAT_DPB2
/// * `"sve2"` - FEAT_SVE2
/// * `"sve2-aes"` - FEAT_SVE2_AES
/// * `"sve2-sm4"` - FEAT_SVE2_SM4
/// * `"sve2-sha3"` - FEAT_SVE2_SHA3
/// * `"sve2-bitperm"` - FEAT_SVE2_BitPerm
/// * `"fptoint"` - FEAT_FRINTTS
/// * `"i8mm"` - FEAT_I8MM
/// * `"f32mm"` - FEAT_F32MM
/// * `"f64mm"` - FEAT_F64MM
/// * `"bf16"` - FEAT_BF16
/// * `"rand"` - FEAT_RNG
/// * `"bti"` - FEAT_BTI
/// * `"mte"` - FEAT_MTE
/// * `"jsconv"` - FEAT_JSCVT
/// * `"fcma"` - FEAT_FCMA
/// * `"sha2"` - FEAT_SHA1 & FEAT_SHA256
/// * `"sha3"` - FEAT_SHA512 & FEAT_SHA3
/// * `"sm4"` - FEAT_SM3 & FEAT_SM4
///
/// [docs]: https://developer.arm.com/documentation/ddi0487/latest
#[unstable(feature = "stdsimd", issue = "27731")]
@BIND_FEATURE_NAME: "asimd"; "neon";
@NO_RUNTIME_DETECTION: "ras";
@NO_RUNTIME_DETECTION: "v8.1a";
@NO_RUNTIME_DETECTION: "v8.2a";
@NO_RUNTIME_DETECTION: "v8.3a";
@NO_RUNTIME_DETECTION: "v8.4a";
@NO_RUNTIME_DETECTION: "v8.5a";
@NO_RUNTIME_DETECTION: "v8.6a";
@NO_RUNTIME_DETECTION: "v8.7a";
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] asimd: "neon";
/// ARM Advanced SIMD (ASIMD)
/// FEAT_AdvSIMD (Advanced SIMD/NEON)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] pmull: "pmull";
/// Polynomial Multiply
/// FEAT_PMULL (Polynomial Multiply)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] fp: "fp";
/// Floating point support
/// FEAT_FP (Floating point support)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] fp16: "fp16";
/// Half-float support.
/// FEAT_FP16 (Half-float support)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] sve: "sve";
/// Scalable Vector Extension (SVE)
/// FEAT_SVE (Scalable Vector Extension)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] crc: "crc";
/// CRC32 (Cyclic Redundancy Check)
/// FEAT_CRC32 (Cyclic Redundancy Check)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] crypto: "crypto";
/// Crypto: AES + PMULL + SHA1 + SHA2
/// Cryptographic Extension (AES + PMULL + SHA1 + SHA2-256)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] lse: "lse";
/// Atomics (Large System Extension)
/// FEAT_LSE (Large System Extension - atomics)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] lse2: "lse2";
/// FEAT_LSE2 (unaligned and register-pair atomics)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] rdm: "rdm";
/// Rounding Double Multiply (ASIMDRDM)
/// FEAT_RDM (Rounding Doubling Multiply - ASIMDRDM)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] rcpc: "rcpc";
/// Release consistent Processor consistent (RcPc)
/// FEAT_LRCPC (Release consistent Processor consistent)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] rcpc2: "rcpc2";
/// FEAT_LRCPC2 (RCPC with immediate offsets)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] dotprod: "dotprod";
/// Vector Dot-Product (ASIMDDP)
/// FEAT_DotProd (Vector Dot-Product - ASIMDDP)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] tme: "tme";
/// Transactional Memory Extensions (TME)
/// FEAT_TME (Transactional Memory Extensions)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] fhm: "fhm";
/// FEAT_FHM (fp16 multiplication instructions)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] dit: "dit";
/// FEAT_DIT (Data Independent Timing instructions)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] flagm: "flagm";
/// FEAT_FLAGM (flag manipulation instructions)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] ssbs: "ssbs";
/// FEAT_SSBS (speculative store bypass safe)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] sb: "sb";
/// FEAT_SB (speculation barrier)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] pauth: "pauth";
/// FEAT_PAuth (pointer authentication)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] dpb: "dpb";
/// FEAT_DPB (aka dcpop - data cache clean to point of persistance)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] dpb2: "dpb2";
/// FEAT_DPB2 (aka dcpodp - data cache clean to point of deep persistance)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] sve2: "sve2";
/// FEAT_SVE2 (Scalable Vector Extension 2)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] sve2_aes: "sve2-aes";
/// FEAT_SVE_AES (SVE2 AES crypto)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] sve2_sm4: "sve2-sm4";
/// FEAT_SVE_SM4 (SVE2 SM4 crypto)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] sve2_sha3: "sve2-sha3";
/// FEAT_SVE_SHA3 (SVE2 SHA3 crypto)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] sve2_bitperm: "sve2-bitperm";
/// FEAT_SVE_BitPerm (SVE2 bit permutation instructions)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] fptoint: "fptoint";
/// FEAT_FRINTTS (float to integer rounding instructions)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] i8mm: "i8mm";
/// FEAT_I8MM (integer matrix multiplication, plus ASIMD support)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] f32mm: "f32mm";
/// FEAT_F32MM (single-precision matrix multiplication)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] f64mm: "f64mm";
/// FEAT_F64MM (double-precision matrix multiplication)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] bf16: "bf16";
/// FEAT_BF16 (BFloat16 type, plus MM instructions, plus ASIMD support)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] rand: "rand";
/// FEAT_RNG (Random Number Generator)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] bti: "bti";
/// FEAT_BTI (Branch Target Identification)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] mte: "mte";
/// FEAT_MTE (Memory Tagging Extension)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] jsconv: "jsconv";
/// FEAT_JSCVT (JavaScript float conversion instructions)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] fcma: "fcma";
/// FEAT_FCMA (float complex number operations)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] sha2: "sha2";
/// FEAT_SHA1 & FEAT_SHA256 (SHA1 & SHA2-256 instructions)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] sha3: "sha3";
/// FEAT_SHA512 & FEAT_SHA3 (SHA2-512 & SHA3 instructions)
@FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] sm4: "sm4";
/// FEAT_SM3 & FEAT_SM4 (SM3 & SM4 instructions)
}
2 changes: 1 addition & 1 deletion crates/std_detect/src/detect/bit.rs
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Expand Up @@ -4,6 +4,6 @@
#[allow(dead_code)]
#[inline]
pub(crate) fn test(x: usize, bit: u32) -> bool {
debug_assert!(bit < 32, "bit index out-of-bounds");
debug_assert!(bit < usize::BITS, "bit index out-of-bounds");
x & (1 << bit) != 0
}
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