hg: shenandoah/jdk8u/hotspot: 8161147: jvm crashes when -XX:+UseCountedLoopSafepoints is enabled

[rwestrel at redhat.com]

Changeset: 72a422e2fc2e
Author:    roland
Date:      2016-07-25 14:31 -0700
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/72a422e2fc2e

8161147: jvm crashes when -XX:+UseCountedLoopSafepoints is enabled
Summary: don't convert loop with safepoint on the backedge to Counted loop
Reviewed-by: kvn

! src/share/vm/opto/loopnode.cpp
+ test/compiler/loopopts/TestCountedLoopSafepointBackedge.java