hg: hsx/hotspot-comp/hotspot: 7059039: EA: don't change non-escaping state of NULL pointer

[vladimir.kozlov at oracle.com]

Changeset: e69a66a1457b
Author:    kvn
Date:      2011-10-25 12:51 -0700
URL:       http://hg.openjdk.java.net/hsx/hotspot-comp/hotspot/rev/e69a66a1457b

7059039: EA: don't change non-escaping state of NULL pointer
Summary: NULL pointers do not escape but escape state propagation may change it leading to worser results.
Reviewed-by: never

! src/share/vm/opto/escape.cpp