hg: jdk10/hs/hotspot: 8181644: C1 crashes with -XX:+PrintCFGToFile

[tobias.hartmann at oracle.com]

Changeset: b95c62a14ae7
Author:    thartmann
Date:      2017-06-07 12:23 +0200
URL:       http://hg.openjdk.java.net/jdk10/hs/hotspot/rev/b95c62a14ae7

8181644: C1 crashes with -XX:+PrintCFGToFile
Summary: CFGPrinterOutput should not be shared between C1 compiler threads.
Reviewed-by: kvn

! src/share/vm/c1/c1_CFGPrinter.cpp
! src/share/vm/c1/c1_CFGPrinter.hpp
! src/share/vm/c1/c1_Compilation.cpp
! src/share/vm/c1/c1_Compilation.hpp