[cfe-commits] [cfe-dev] [PATCH] Asm multiple alternative constraints revisited

[John Thompson]

May I have permission to check this in?

On Fri, Aug 6, 2010 at 9:28 AM, John Thompson <
john.thompson.jtsoftware at gmail.com> wrote:

> Thanks, Eli.
>
> Then do I have permission to check in the front end changes, leaving the
> back end as-is for now, treating any further work there as a separate issue
> to be discussed first on llvmdev?
>
> Basically, without these front-end changes, there will be an assert in the
> front end code gen (-emit-llvm) if multi-alt constraints are seen, because
> the extra commas are not expected.
>
> -John
>
>   On Thu, Aug 5, 2010 at 8:14 PM, Eli Friedman <eli.friedman at gmail.com>wrote:
>
>> On Thu, Aug 5, 2010 at 7:54 PM, John Thompson
>> <john.thompson.jtsoftware at gmail.com> wrote:
>> > Eli,
>> >
>> > So, then this is a problem with the back-end, right?  Do you agree that
>> the
>> > back end is a better place to try to choose constraints, given that it
>> knows
>> > better which things are already in registers and so forth?
>>
>> Yes, it would fit more naturally there... but I'm not sure a proposal
>> to make inline asm in the backend more complicated will be greeted
>> with much enthusiasm.  If you're really interested in pursuing that
>> path, though, ask on llvmdev first.
>>
>> -Eli
>>
>
>
>
>  --
> John Thompson
> John.Thompson.JTSoftware at gmail.com
>
>


-- 
John Thompson
John.Thompson.JTSoftware at gmail.com
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