hg: jdk/jdk10: 8194494: SHA-512 stub uses AVX 2 instructions on non-supporting CPUs

[tobias.hartmann at oracle.com]

Changeset: a97a26eb896f
Author:    thartmann
Date:      2018-01-05 10:23 +0100
URL:       http://hg.openjdk.java.net/jdk/jdk10/rev/a97a26eb896f

8194494: SHA-512 stub uses AVX 2 instructions on non-supporting CPUs
Summary: Check for supports_avx2() && supports_bmi2() before generating SHA-512 stub.
Reviewed-by: kvn

! src/hotspot/cpu/x86/vm_version_x86.cpp