| Issue |
61429
|
| Summary |
Clang C++17 Feature: Core bits for P0154R1 - Hardware interference size
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
h-vetinari
|
id: P0154R1
paper: https://wg21.link/P0154R1
Though this is primarily a library feature, there are some macros necessary that currently only work with GCC, and not Clang. There was an [appeal](https://discourse.llvm.org/t/rfc-c-17-hardware-constructive-destructive-interference-size/48674/37) before LLVM 15 for Clang to match GCC, but it [landed](https://github.com/llvm/llvm-project/commit/56a33ba3dd2bfd411e77946871814e98d92ec2fa) as GCC-only.
I guess this got forgotten in the meantime, so raising an issue to track. More specifically, https://libcxx.llvm.org/Status/Cxx17.html says:
> P0154: This is currently not implemented for clang because clang does not implement the required macros.
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