hg: hsx/hotspot-comp/hotspot: 7199742: A lot of C2 OSR compilations of the same method's bci

[vladimir.kozlov at oracle.com]

Changeset: f13867c41f73
Author:    kvn
Date:      2012-10-02 14:49 -0700
URL:       http://hg.openjdk.java.net/hsx/hotspot-comp/hotspot/rev/f13867c41f73

7199742: A lot of C2 OSR compilations of the same method's bci
Summary: Don't clone head of OSR loop.
Reviewed-by: jrose, twisti

! src/share/vm/ci/ciTypeFlow.cpp
! src/share/vm/opto/parse1.cpp
+ test/compiler/7199742/Test7199742.java