RFR: C1 fixes to matrix barriers

[Andrew Haley]

On 24/03/17 09:21, Roman Kennke wrote:

> http://cr.openjdk.java.net/~rkennke/c1matrixbarrier/webrev.01/
> <http://cr.openjdk.java.net/%7Erkennke/c1matrixbarrier/webrev.01/>
> 
> Better?

:-)

Andrew.