RFR(XS): JDK-8030808 dtrace/hotspot/Monitors/Monitors001 fails in product builds on solaris-sparc

[Frederic Parain]

Greetings,

Please review this small fix for bug 8030808.
The bug is caused by a compiler bug preventing the
hotspot:::monitor-waited DTrace probe to be fired
on SPARC. After several failed attempts to fix
the compiler behavior with #pragma and flags, I'm
proposing this simple workaround.

CR:
https://bugs.openjdk.java.net/browse/JDK-8030808
Webrev:
http://cr.openjdk.java.net/~fparain/8030808/webrev.00/

The fix has been tested with the dtrace/hotspot test suite
and the vm.quick testlist.

Thanks,

Fred

-- 
Frederic Parain - Oracle
Grenoble Engineering Center - France
Phone: +33 4 76 18 81 17
Email: Frederic.Parain at oracle.com