| Issue |
160266
|
| Summary |
[Clang] Add __builtin_bswapg
|
| Labels |
enhancement,
clang:frontend
|
| Assignees |
|
| Reporter |
philnik777
|
Currently Clang has `__builtin_bswap{16,32,64}`. It would be great if there was a `__builtin_bswapg` that works on any integral types that has a multiple of 16 bits as well as a single byte, which would simply be the identity. This would avoid a long `if constexpr` chain when implementing `std::byteswap`, which uses the same codegen path in the end anyways. It would also make it trivial to add support for `_BitInt` as well.
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