commit 4fcc7e8528d8d6020a5299c9e7eccaa565413c9e
author Alexey Bataev <a.bataev@hotmail.com> Fri Sep 08 13:49:36 2017 +0000
committer Alexey Bataev <a.bataev@hotmail.com> Fri Sep 08 13:49:36 2017 +0000
tree 4012f4f1e8051afee7c0f114c0736faff44a5bcd
parent 977c908e78cb2aa2ec8a9077602bf25d497712cc

[SLP] Support for horizontal min/max reduction.

SLP vectorizer supports horizontal reductions for Add/FAdd binary
operations. Patch adds support for horizontal min/max reductions.
Function getReductionCost() is split to getArithmeticReductionCost() for
binary operation reductions and getMinMaxReductionCost() for min/max
reductions.
Patch fixes PR26956.

Differential revision: https://reviews.llvm.org/D27846

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@312791 91177308-0d34-0410-b5e6-96231b3b80d8