hg: jdk7/hotspot-comp/hotspot: 6973329: C2 with Zero based COOP produces code with broken anti-dependency on x86

[vladimir.kozlov at oracle.com]

Changeset: 6c9cc03d8726
Author:    kvn
Date:      2010-08-11 10:48 -0700
URL:       http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/6c9cc03d8726

6973329: C2 with Zero based COOP produces code with broken anti-dependency on x86
Summary: Recompile without subsuming loads if RA try to clone a node with anti_dependence.
Reviewed-by: never

! src/share/vm/includeDB_compiler2
! src/share/vm/opto/lcm.cpp
! src/share/vm/opto/reg_split.cpp
+ test/compiler/6973329/Test.java