[Bug fortran/41137] inefficient zeroing of an array

Joost.VandeVondele at mat dot ethz.ch gcc-bugzilla@gcc.gnu.org
Fri Mar 29 09:47:00 GMT 2013


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41137

Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2009-11-01 16:21:21         |2013-03-29
                 CC|                            |Joost.VandeVondele at mat
                   |                            |dot ethz.ch
             Blocks|                            |38654

--- Comment #14 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> 2013-03-29 09:46:53 UTC ---
The code in comment #0 is actually a frontend optimization, PR38654. 

Noteworthy that the optimizers (ipa-cp plus others) do the right thing for the
tester in comment #1 at -O3 (but can't do this in the general case).



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