[cfe-commits] [PATCH] vecreturn attribute support

[Chris Lattner]

On Dec 22, 2010, at 7:01 PM, Sergey Epanchintsev wrote:

> 
> Hello everyone,
> 
> Please review the attached patch.
> 
> It adds vecreturn attribute functionality to get a single element structure
> or class (declared with 'vecreturn' attribute) compiled to IR so it  will be
> returned by value.
> 
> I have unit tests but will submit them with a separate patch - I want to
> keep my first patch small and clean. :)
> 
> As a headsup; I will submit a patch for SemaDeclAttr.cpp to support
> vecreturn with C++ classes after this patch will be accepted.

Hi Sergey,

What is the expected use of this attribute?  What functionality does it provide to an end-user?  Is this something supported by other compilers?

-Chris