hg: jdk/hs: 8190494: Different results with UseAVX=3 when calling AVX-512 native function via JNI

[vladimir.kozlov at oracle.com]

Changeset: 09b7b32b244f
Author:    vdeshpande
Date:      2017-12-01 16:23 -0800
URL:       http://hg.openjdk.java.net/jdk/hs/rev/09b7b32b244f

8190494: Different results with UseAVX=3 when calling AVX-512 native function via JNI
Summary: reset mask register after JNI calls
Reviewed-by: kvn, vlivanov

! src/hotspot/cpu/x86/assembler_x86.cpp
! src/hotspot/cpu/x86/macroAssembler_x86.cpp