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From: "linkw at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/109082] emmintrin.h:1624:16: error: argument 3 must be a
 literal between 0 and 15, inclusive
Date: Thu, 16 Mar 2023 08:14:00 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109082

Kewen Lin <linkw at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |linkw at gcc dot gnu.org
           Assignee|unassigned at gcc dot gnu.org      |linkw at gcc dot gn=
u.org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2023-03-16

--- Comment #4 from Kewen Lin <linkw at gcc dot gnu.org> ---
Confirmed, as PVIPR for:
   r =3D vec_sld (a, b, c)
c must be in the range 0=E2=80=9315.

I noticed that for:

__m128i test_r(__m128i vec )
{
    return _mm_bsrli_si128 ( vec, -1);
}

icc would optimize it to vzero while gcc would emit error msg.

IMHO we should guard the N with __N < 16 && __N >=3D 0 and return vzeros fo=
r the
others.=