AlexVlx wrote:
> I mean, I'm not particularly attached to the syntax of the "if". I guess we
> could designate `if (__builtin_amdgcn_processor_is("gfx900")) {}` as a
> "processor-feature-if". The point is that we need to know at the AST level
> which processor features are available for each statement.
I don't quite see how to parse this statement to make it address the actual use
case. These are useful because we cannot know, at the AST level (in the FE)
which processor features are available. If we knew that we don't really need
any additional mechanism, so this is just a different way to type `#if defined`
/ `__has_builtin`, which is not what is desired.
https://github.com/llvm/llvm-project/pull/134016
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