Re: Question about simple_return pattern for the GCC ARM backend.

[Chung-Lin Tang]

On 2013/12/28 09:31 AM, Yangfei (Felix) wrote:
> Hi, 
> 
>   I think that simple_return standard pattern is useful for the ARM. I mean 
> it should be good for target code performance.
> 　But seems this pattern is not there for the GCC ARM backend. Can anyone 
> explain the reason why we don’t need this?
> 
> Cheers,
> Fei
> 

It does use it. Search for the "<return_str>return" expand pattern, and
the "returns" code iterator in config/arm/iterators.md.

Chung-Lin