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| M-Profile Architecture Feature | GNU Identifier | Enabled by default | Binutils | GCC | Glibc | GDB |
| M-Profile Vector Extension (MVE) | mve | No | 2.33 | GCC10* | NA | Planned |
| Arm Custom Instructions | No | 2.35* |
GCC10* | NA | Planned |
* Planned
| A-Profile Architecture Feature | Architecture Identifier | GNU Identifier | Enabled by default | Binutils | GCC | Glibc | GDB |
| CRC instruction | crc | ARMv8.1-A or later | 2.25 | GCC 6 | NA | 7.6 | |
| Crypto extension | crypto | No | 2.25 | GCC 6 | NA | 7.6 | |
| Floating-point extension | fp | ARMv8-A or later | 2.25 | GCC 6 | NA | 7.6 | |
| Advanced SIMD extension | simd | ARMv8-A or later | 2.25 | GCC 6 | NA | 7.6 | |
| Limited Ordering Regions extensions | ARMv8.1-LOR | lor | ARMv8.1-A or later | 2.26 | NA | NA | 7.11.1 |
| Privileged Access Never support | ARMv8.1-PAN | pan | ARMv8.1-A or later | 2.26 | NA | NA | 7.11.1 |
| Round Double Multiply Accumulate instructions | ARMv8.1-RDMA | rdma | ARMv8.1-A or later | 2.26 | GCC 8 | NA | 7.11.1 |
| FP16 extension | ARMv8.2-FP16 | fp16 | ARMv8.2-A or later | 2.26 | GCC 7 | NA | 7.11.1 |
| Statistical Profiling Extensions (SPE) | profile | No | 2.26 | GCC 9 | NA | 7.11.1 |
|
| Large System Extension (LSE) | ARMv8.1-LSE | lse | ARMv8.1-A or later | 2.27 | GCC 6 | NA | 8.1 |
| RAS extension | ras | ARMv8.2-A or later | 2.27 | NA | NA | 8.1 | |
| Scalable Vector Extension (SVE) | |
sve | No | 2.28 | GCC 8 | 2.30 | 8.2 |
| Complex number SIMD extension | ARMv8.3-CompNum | compnum | ARMv8.3-A or later | 2.28 | GCC9 | NA | 8.1 |
| Weak release consistency extension | ARMv8.3-RCPC | rcpc | ARMv8.3-A or later | 2.29 | GCC 8 | NA | 8.1 |
| Pointer Authentication | ARMv8.3-PAuth | No | 2.27 | GCC 7 | NA | 9.1 | |
| Dot Product extension | ARMv8.2-DotProd | dotprod | ARMv8.4-A or later | 2.29 | GCC 8 | NA | 8.1 |
| AES cryptographic extension | ARMv8.0-AES | aes | No | 2.30 | GCC 8 | NA | 8.1 |
| SHA2 cryptographic extension | ARMv8.0-SHA | sha2 | No | 2.30 | GCC 8 | NA | 8.1 |
| FP16 fmla extension | ARMv8.2-FHM | fp16fml | ARMv8.4-A or later | 2.30 | GCC 8 | NA | 8.1 |
| SHA512 and SHA3 cryptographic extensions | ARMv8.2-SHA | sha3 | No | 2.30 | GCC 8 | NA | 8.1 |
| SM3 and SM4 cryptographic extensions | ARMv8.2-SM | sm4 | No | 2.30 | GCC 8 | NA | 8.1 |
| Memory Tagging Extension (MTE) | ARMv8.5-MemTag | memtag | No | 2.33.1 |
GCC10* | Planned | Planned |
| Branch Target Indicators (BTI) | ARMv8.5-BTI | No | 2.33.1 | GCC 9 | Planned | Planned | |
| Execution and Data and Prediction instructions | ARMv8.0-PredInv | predres | ARMv8.5-A or later | 2.32 | GCC 9 | NA | 8.3 |
| Random number instructions | ARMv8.5-RNG | rng | No | 2.32 | GCC 9 | NA | 8.3 |
| Speculation barrier instruction sb | ARMv8.0-SB | sb | ARMv8.5-A or later | 2.32 | GCC 9 | NA | 8.3 |
| Bfloat16 | ARMv8.6-A or later | 2.34 | GCC10* | NA | 9.1 | ||
| Matrix Multiplier Extension | ARMv8.6-A or later | 2.34 | GCC10* | NA | Planned | ||
| Scalable Vector Extension v2 (SVE2) | |
No | 2.33.1 | GCC10* | 2.30 | 9.1 | |
| Transactional Memory Extension (TME) | |
No | 2.33.1 | GCC10* | Planned | Planned |
* Planned
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