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From: "ak at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/93768] Use vpternlog for composite logical operations
Date: Sun, 25 Sep 2022 19:35:56 +0000
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X-Bugzilla-Keywords: missed-optimization
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X-Bugzilla-Who: ak at gcc dot gnu.org
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X-Bugzilla-Resolution: DUPLICATE
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D93768

ak at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ak at gcc dot gnu.org
         Resolution|---                         |DUPLICATE
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #2 from ak at gcc dot gnu.org ---
Most of it is already done as part of PR101989

One issue is that it is only for suitable vector types, it doesn't really w=
ork
for scalars because the compiler has no idea that a conversion might be
profitable. Perhaps that would be an interesting (but likely) separate feat=
ure
to define some frame work to figure out if switching to the vector ISA is w=
orth
it.

*** This bug has been marked as a duplicate of bug 101989 ***=