[Bug tree-optimization/127687] -fcompare-debug failure when GIMPLE_DEBUG splits forwprop VEC_PERM sequence blending

[yqtian668 at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127687

--- Comment #1 from Yongqiang Tian <yqtian668 at gmail dot com> ---
Created attachment 65732
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65732&action=edit
reproduce script