[Bug tree-optimization/68305] [6 regression] ICE on valid code at -O3 on x86_64-linux-gnu: tree check: expected class ‘expression’, have ‘exceptional’ (ssa_name) in tree_operand_check, at tree.h:3436

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68305

--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> ---
gcc.dg/vect/pr68305.c has

/* { dg-do compile } */
/* { dg-additional-options "-O3" } */
/* { dg-additional-options "-mavx2" { target avx_runtime } } */

It is a compile test.  Why does it need AVX run-time support?