[Bug tree-optimization/77621] [6/7 Regression] Internal compiler error for mtune=atom + msse2

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77621

--- Comment #10 from Uroš Bizjak <ubizjak at gmail dot com> ---
Created attachment 39653
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39653&action=edit
Target-dependent patch that disables DFmode vectorization via vector costs

Proposed target-dependent patch.