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
2017-09-08 03:57:02 +00:00
2017-09-08 13:40:07 +00:00
2017-09-07 22:46:51 +00:00
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