hg: graal/graal: 3 new changesets

[doug.simon at oracle.com]

Changeset: 8c7e103521ef
Author:    Thomas Wuerthinger <thomas.wuerthinger at oracle.com>
Date:      2015-06-07 16:16 +0200
URL:       http://hg.openjdk.java.net/graal/graal/rev/8c7e103521ef

Fix too conservative anchoring of PiNode in CheckCastNode lowering.

! graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/CheckCastNode.java

Changeset: e9100cc156a9
Author:    Thomas Wuerthinger <thomas.wuerthinger at oracle.com>
Date:      2015-06-07 16:21 +0200
URL:       http://hg.openjdk.java.net/graal/graal/rev/e9100cc156a9

Add test for implicit null check phase.

+ graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/ImplicitNullCheckTest.java

Changeset: b6309a7d5a44
Author:    Thomas Wuerthinger <thomas.wuerthinger at oracle.com>
Date:      2015-06-07 16:59 +0200
URL:       http://hg.openjdk.java.net/graal/graal/rev/b6309a7d5a44

Fix the anchoring node in the lowering phase to not skip over loop exits.

! graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/LoweringPhase.java