[llvm][Patch 1/3] ppc-darwin AsmParser Base implementation.

[David Fang]

> Probably, one has to have a flag (GAS uses -mregnames) to control checking of validity for each register syntax.
> Also the difference between pre xx16() and post @l/hx needs validation, and there's a large bunch of post @xxxxx modifiers that are not valid for darwin.
>
> Having interchangeable syntax is a nice idea, but doesn't come for free 
> in terms of support, testing and maintenance.  I'd say "let's get 
> powerpc-apple-darwin{8,9} working well with default settings and syntax, 
> and then look at possible extensions".

Let's not bother for now.  No one will really care.
Anyone who cares enough can try using sed first anyhow. 
At least two of us care about powerpc-darwin8.  :)

David

> "Just switching" to the form used by ELF targets would mean checking the 
> cases that are not allowed for darwin, and being prepared to convert asm 
> in any darwin codebase that happens to use it.

>
>>> On 5 Dec 2013, at 23:59, David Fang wrote:
>>>
>>>> Attached is the change to the aforementioned test case.
>>>> Consider it patch part 4.
>>>
>>> LGTM
>>> .. we still need to add a couple more tests to check for wrong use of .machine directives.
>>>
>>> Iain
>>>
>>
>> --
>> David Fang
>> http://www.csl.cornell.edu/~fang/
>>
>

-- 
David Fang
http://www.csl.cornell.edu/~fang/