[Bug testsuite/68969] New: gcc.dg/vect/pr66636.c and gcc.dg/vect/pr68305.c have the wrong condition

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68969

            Bug ID: 68969
           Summary: gcc.dg/vect/pr66636.c and gcc.dg/vect/pr68305.c have
                    the wrong condition
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: testsuite
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
  Target Milestone: ---

gcc.dg/vect/pr66636.c and gcc.dg/vect/pr68305.c have

/* { dg-additional-options "-mavx2" { target avx_runtime } } */

They will get "illegal hardware instruction" on AVX machine without
AVX2 support.