[Bug target/87976] [i386] Sub-optimal code generation for _mm256_set1_epi64()

amonakov at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Mon Nov 12 09:08:00 GMT 2018


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87976

Alexander Monakov <amonakov at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
   Last reconfirmed|                            |2018-11-12
                 CC|                            |amonakov at gcc dot gnu.org
         Resolution|DUPLICATE                   |---
     Ever confirmed|0                           |1

--- Comment #5 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
Reopening per comment #4: while we do generate optimal code with -mavx512vl, we
should do a better job with plain avx2 (i.e. with -march=haswell).


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