[Bug fortran/40168] missing unrolling/scalarization/reassoc/free

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2009-05-16 09:54 -------
translating

           buffer1 = 0.0_dp

to

           (void) __builtin_memset ((void *) &buffer1, 0, 648);

pessimizes the middle-end analysis because buffer1 is now addressable and
escapes.  The maybe valid (if not we'll fix it) form

           buffer1 = {};

would be prefered here (CONSTRUCTOR with no elements).


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu dot
                   |                            |org
           Severity|normal                      |enhancement
          Component|middle-end                  |fortran


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40168