[Bug rtl-optimization/69710] performance issue with SP Linpack with Autovectorization

amker at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Tue Feb 9 16:16:00 GMT 2016


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69710

--- Comment #7 from amker at gcc dot gnu.org ---
Hmm, the first problem is the two iv uses from dy load/store are not recognized
as having same base address/object.  This may caused by my patch disabling
expansion of iv base.  Or it exists all the time.  This isn't critical, we can
transform it on aaarch64 anyway.
Another problem is more important that dx mem ref is not recognized as address
type.


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