hg: jdk/jdk10: 8193518: C2: Vector registers sometimes corrupted at safepoint

[vladimir.kozlov at oracle.com]

Changeset: cfde2a53d393
Author:    roland
Date:      2017-12-15 10:26 -0800
URL:       http://hg.openjdk.java.net/jdk/jdk10/rev/cfde2a53d393

8193518: C2: Vector registers sometimes corrupted at safepoint
Reviewed-by: neliasso, thartmann, kvn

! src/hotspot/share/opto/compile.hpp
! src/hotspot/share/opto/superword.cpp