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From: "wschmidt at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/95082] LE implementations of vec_cnttz_lsbb and
 vec_cntlz_lsbb are wrong
Date: Wed, 23 Feb 2022 20:25:52 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95082

Bill Schmidt <wschmidt at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|11.0                        |
            Summary|[11] LE implementations of  |LE implementations of
                   |vec_cnttz_lsbb and          |vec_cnttz_lsbb and
                   |vec_cntlz_lsbb are wrong    |vec_cntlz_lsbb are wrong

--- Comment #10 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
>>From some private discussion today, this goes back quite some ways, and we'=
re
simply going to document this as a change in behavior.  The old behavior was
wrong and usage of these built-ins is not very prevalent.  We'll make a poi=
nt
of this change in the release notes, rather than do any backports.=