[Bug target/47759] _mm_empty() intrinsic fails to serve as a boundary between MMX and x87 code due to optimizations

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47759

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2011.02.15 21:57:56
     Ever Confirmed|0                           |1

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-02-15 
21:57:56 UTC ---
Confirmed, the scheduler does not know that the mmx instructions touch the x87
registers.