[Bug c++/80561] Missed optimization: std::array data is aligned if array is aligned

rguenth at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Tue May 2 08:27:00 GMT 2017


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80561

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |missed-optimization
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2017-05-02
             Blocks|                            |53947
           Assignee|unassigned at gcc dot gnu.org      |rguenth at gcc dot gnu.org
     Ever confirmed|0                           |1
      Known to fail|                            |7.1.0

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.  It's odd, the alignment information seems to be present but the
vectorizer somehow ignores it.  I'll have a look.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947
[Bug 53947] [meta-bug] vectorizer missed-optimizations


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