hg: jdk/jdk12: 8217467: Access barriers are missing in C2 intrinsic for Base64

[shade at redhat.com]

Changeset: 274fcce9d147
Author:    shade
Date:      2019-01-22 21:18 +0100
URL:       http://hg.openjdk.java.net/jdk/jdk12/rev/274fcce9d147

8217467: Access barriers are missing in C2 intrinsic for Base64
Reviewed-by: thartmann, roland, rkennke, kvn

! src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.cpp
! src/hotspot/share/opto/library_call.cpp