[Bug middle-end/55653] Unnecessary initialization of vector register

pinskia at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Tue Dec 11 20:06:00 GMT 2012


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55653

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |missed-optimization
             Target|                            |aarch64-*-*
                 CC|                            |pinskia at gcc dot gnu.org

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-12-11 20:06:00 UTC ---
I think there are two different issues here.  The first issue is a target issue
as {0.0, 0.0} should be done as just an xor which really resolves this issue as
it is able to optimize that out (though it is a good thing to do even without
the other part).

The other issue shouldn't !vector be false here as we have a vector?



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