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| author | Sirraide <aeternalmail@gmail.com> | 2024-03-09 12:07:16 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-03-09 12:07:16 +0100 |
| commit | 2b5f68a5f63d2342a056bf9f86bd116c100fd81a (patch) | |
| tree | 2831699172fa824863d5d321e9054fa7816bc960 /clang/www | |
| parent | 9df719407f808d71d3bf02867da2b01617ef3d55 (diff) | |
| download | llvm-2b5f68a5f63d2342a056bf9f86bd116c100fd81a.zip llvm-2b5f68a5f63d2342a056bf9f86bd116c100fd81a.tar.gz llvm-2b5f68a5f63d2342a056bf9f86bd116c100fd81a.tar.bz2 | |
[Clang][C++23] Implement P1774R8: Portable assumptions (#81014)
This implements the C++23 `[[assume]]` attribute.
Assumption information is lowered to a call to `@llvm.assume`, unless the expression has side-effects, in which case it is discarded and a warning is issued to tell the user that the assumption doesn’t do anything. A failed assumption at compile time is an error (unless we are in `MSVCCompat` mode, in which case we don’t check assumptions at compile time).
Due to performance regressions in LLVM, assumptions can be disabled with the `-fno-assumptions` flag. With it, assumptions will still be parsed and checked, but no calls to `@llvm.assume` will be emitted and assumptions will not be checked at compile time.
Diffstat (limited to 'clang/www')
| -rwxr-xr-x | clang/www/cxx_status.html | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/clang/www/cxx_status.html b/clang/www/cxx_status.html index a3090ad..66a2b11 100755 --- a/clang/www/cxx_status.html +++ b/clang/www/cxx_status.html @@ -381,7 +381,7 @@ C++23, informally referred to as C++26.</p> <tr> <td>Portable assumptions</td> <td><a href="https://wg21.link/P1774R8">P1774R8</a></td> - <td class="none" align="center">No</td> + <td class="full" align="center">Clang 19</td> </tr> <tr> <td>Support for UTF-8 as a portable source file encoding</td> |