[cfe-dev] VarDecl hierarchy (Re: Objective-C tidy up)

[David Chisnall]

On 9 Jun 2008, at 23:24, Steve Naroff wrote:

> On Jun 9, 2008, at 3:06 PM, David Chisnall wrote:
>
>> This doesn't appear to be set, but possibly it will be in the
>> future.  Register doesn't really make sense for an implicit
>> parameter, since the calling convention for functions with implicit
>> parameters is only relevant to code generation.
>>
>
> There are plenty of things you can "say" in C that don't make sense.
>
> That said, it is legal to declare say "void func(register int a)" (and
> therefore needs to be preserved in the AST).

This is true for explicit parameters, but not for implicit parameters,  
since they are (by definition) not declared in the code.