hg: jdk/jdk12: 8214512: ARM32: Jtreg test compiler/c2/Test8062950.java fails on ARM

[dean.long at oracle.com]

Changeset: 5da72d7e0e80
Author:    dlong
Date:      2018-12-17 10:36 -0800
URL:       http://hg.openjdk.java.net/jdk/jdk12/rev/5da72d7e0e80

8214512: ARM32: Jtreg test compiler/c2/Test8062950.java fails on ARM
Reviewed-by: dlong, enevill, bulasevich
Contributed-by: nick.gasson at arm.com

! src/hotspot/cpu/arm/arm.ad
! src/hotspot/cpu/arm/macroAssembler_arm.cpp
! src/hotspot/cpu/arm/macroAssembler_arm.hpp