[Bug middle-end/90774] New: avoid doing vector splat arithmetic where possible

[slandden at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90774

            Bug ID: 90774
           Summary: avoid doing vector splat arithmetic where possible
           Product: gcc
           Version: 8.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: slandden at gmail dot com
  Target Milestone: ---

When gcc knows that it is dealing with splats it should just do regular
arithmetic, and only convert to splat at the end.

https://simd.godbolt.org/z/6P3Qcq