[Bug rtl-optimization/78972] New: [5/6/7 Regression] poor x86 simd instruction scheduling

[liquidsun at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78972

            Bug ID: 78972
           Summary: [5/6/7 Regression] poor x86 simd instruction
                    scheduling
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: liquidsun at gmail dot com
  Target Milestone: ---

Created attachment 40441
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40441&action=edit
example.c