tree cbefafd0648b8dfcd455ab791c82e500db441dbd
parent 6be76dee8ab59e1199c2c9e6d6f384f8064bafb0
author Nikita Popov <nikita.ppv@gmail.com> 1549825598 +0000
committer Nikita Popov <nikita.ppv@gmail.com> 1549825598 +0000

[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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353651 91177308-0d34-0410-b5e6-96231b3b80d8