hg: jdk9/sandbox/hotspot: 8178800: compiler/c2/PolynomialRoot.java fails on Xeon Phi linux host with UseAVX=3

[chris.hegarty at oracle.com]

Changeset: 507f8a7678b4
Author:    mcberg
Date:      2017-05-16 12:55 -0700
URL:       http://hg.openjdk.java.net/jdk9/sandbox/hotspot/rev/507f8a7678b4

8178800: compiler/c2/PolynomialRoot.java fails on Xeon Phi linux host with UseAVX=3
Summary: upper register bank support added for novl machines that emit EVEX
Reviewed-by: kvn, thartmann

! src/cpu/x86/vm/macroAssembler_x86.cpp
! src/cpu/x86/vm/macroAssembler_x86.hpp