GCC Status Report (2004-03-09)

Mark Mitchell mark@codesourcery.com
Wed Mar 31 21:48:00 GMT 2004


Richard Kenner wrote:

>I have a suggestion, one that I think I made before:
>
>There are two separate cases.
>
>For the not-all-field-specified case, we *have* to do the clearing, but it's
>relatively uncommon.  So if TARGET is /u, make a new temporary, do the store
>into it in the usual manner, and copy it into the /u TARGET.
>
>In the other cases (mostly_zero), the clearing is an *optimization*.  So
>suppress it for the /u TARGET.
>  
>
I'd be OK with that approach.  Do you have a patch we can try out?

-- 
Mark Mitchell
CodeSourcery, LLC
(916) 791-8304
mark@codesourcery.com



More information about the Gcc-patches mailing list