e54a6d71bf
LLVM's `ssbs` and `mte` target_features represent two Arm features. Linux's HWCAP also represents the same two features, so this is just a documentation update. LLVM's `ras` target_feature represents two Arm features - FEAT_RAS and FEAT_RASv1p1. There is no runtime detection for this, so this is a no-op in stdarch. LLVM's `aes` feature covers both `FEAT_AES` and `FEAT_PMULL`, but Linux exposes seperate feature bits. This patch makes the `aes` target_feature correctly shortcut runtime `pmull` detection and also makes the `aes` feature check for `pmull` at runtime to bring it in line with the target_feature behaviour. In practice I think this makes the two runtime features identical since the ID_AA64ISAR0_EL1 register does not allow for PMULL without AES. |
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| .. | ||
| assert-instr-macro | ||
| core_arch | ||
| intrinsic-test | ||
| simd-test-macro | ||
| std_detect | ||
| stdarch-gen | ||
| stdarch-test | ||
| stdarch-verify | ||