Alexey Bataev 6dd29fccb8 [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

llvm-svn: 312791
2017-09-08 13:49:36 +00:00
..
2017-06-30 07:09:08 +00:00