[Bug target/89057] [8/9/10/11 Regression] AArch64 ld3 st4 less optimized

rsandifo at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Wed Dec 30 10:24:44 GMT 2020


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89057

rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |rsandifo at gcc dot gnu.org

--- Comment #9 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
I think the fix is to make aarch64_combine<mode> aware of
aarch64_combinez{,_be}<mode> (i.e. the special case of the
second vector input being zero).  Testing a patch.


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