hg: hsx/hotspot-main/hotspot: 4 new changesets

[vladimir.kozlov at oracle.com]

Changeset: d50605d9417e
Author:    roland
Date:      2012-07-02 09:58 +0200
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/d50605d9417e

7177917: Failed test java/lang/Math/PowTests.java
Summary: When c2 intrinsifies pow/exp, it should never inline the java implementations.
Reviewed-by: kvn

! src/share/vm/opto/library_call.cpp
+ test/compiler/7177917/Test7177917.java

Changeset: 70862d781d01
Author:    kvn
Date:      2012-07-02 12:59 -0700
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/70862d781d01

7180769: assert(tboth->klass_is_exact()) failed: klass should be exact
Summary: Use class exactness as part of the condition for class compare optimization instead of assert.
Reviewed-by: twisti, roland

! src/share/vm/opto/parse2.cpp

Changeset: ae9241bbce4a
Author:    kvn
Date:      2012-07-11 14:50 -0700
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/ae9241bbce4a

7181658: CTW: assert(t->meet(t0) == t) failed: Not monotonic
Summary: Use uncast node equivalence checks in CmpUNode::sub.
Reviewed-by: kvn, twisti
Contributed-by: vladimir.x.ivanov at oracle.com

! src/share/vm/opto/subnode.cpp
! src/share/vm/opto/subnode.hpp

Changeset: cc787232c4c5
Author:    kvn
Date:      2012-07-12 14:19 -0700
URL:       http://hg.openjdk.java.net/hsx/hotspot-main/hotspot/rev/cc787232c4c5

Merge