hg: jdk/jdk11: 8194740: UseSubwordForMaxVector causes performance regression

[vladimir.kozlov at oracle.com]

Changeset: dd7ce84016a5
Author:    vdeshpande
Date:      2018-07-09 13:25 -0700
URL:       http://hg.openjdk.java.net/jdk/jdk11/rev/dd7ce84016a5

8194740: UseSubwordForMaxVector causes performance regression
Reviewed-by: kvn, thartmann

! src/hotspot/share/opto/loopTransform.cpp
! src/hotspot/share/opto/loopnode.hpp
! src/hotspot/share/opto/superword.cpp