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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/99395] s116 benchmark of TSVC is vectorized
 by clang and not by gcc
Date: Fri, 05 Mar 2021 08:27:19 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99395

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-03-05
                 CC|                            |rguenth at gcc dot gnu.org,
                   |                            |rsandifo at gcc dot gnu.org
           Keywords|                            |missed-optimization
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
          Component|middle-end                  |tree-optimization

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
please provide compilable testcases ...

Reduced testcase:

double a[1024];
void foo ()
{
  for (int i =3D 0; i < 1022; i +=3D 2)
    {
      a[i] =3D a[i+1] * a[i];
      a[i+1] =3D a[i+2] * a[i+1];
    }
}=