[Bug middle-end/31802] SSE2 performance is deteriorating when __m128 is placed in union

pinskia at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Thu May 3 20:44:00 GMT 2007



------- Comment #1 from pinskia at gcc dot gnu dot org  2007-05-03 21:44 -------
This is because the union does not get the correct mode (it gets BLK or TImode)
so GCC stores the union to the stack all the time.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
           Severity|normal                      |enhancement
          Component|c++                         |middle-end


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31802



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