BillyONeal added a comment.

In D87974#2432793 <https://reviews.llvm.org/D87974#2432793>, @zoecarver wrote:

> So, it looks like GCC already uses `__builtin_clear_padding` and MSVC already 
> uses `__builtin_zero_non_value_bits`. This patch (obviously) is currently 
> implementing `__builtin_zero_non_value_bits ` but, I had planned to update it 
> to use `__builtin_clear_padding`. Maybe that's not the best course of action, 
> though.
>
> We should all try to agree on _one_ name. CC @BillyONeal @jwakely thoughts?

The name MSFT is already shipping in production is 
`__builtin_zero_non_value_bits`. If gcc is already shipping another name in 
production I think clang is stuck supporting both names, if gcc has not yet 
shipped their implementation perhaps we can choose one. That seems to be more 
on gcc than it is on clang given clang's desire to be more or less a drop in 
replacement for either gcc or msvc.

The MSFT STL implementation can of course use a different builtin when we 
detect clang.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D87974/new/

https://reviews.llvm.org/D87974

_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits

Reply via email to