Nikita Popov a0e96bd56d [CodeGen][X86] Don't scalarize vector saturating add/sub
Now that we have vector support for [US](ADD|SUB)O we no longer
need to scalarize when expanding [US](ADD|SUB)SAT.

This matches what the cost model already does.

Differential Revision: https://reviews.llvm.org/D57348

llvm-svn: 353651
2019-02-10 19:06:38 +00:00
..