hg: jdk9/hs-comp/hotspot: 8135069: C2 replaces range checks by unsigned comparison with -1

[roland.westrelin at oracle.com]

Changeset: b9246bd13eeb
Author:    roland
Date:      2015-09-11 16:56 +0200
URL:       http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/b9246bd13eeb

8135069: C2 replaces range checks by unsigned comparison with -1
Summary: i < 0 || i > -1 wrongly folded as i >u -1
Reviewed-by: kvn

! src/share/vm/opto/ifnode.cpp
! test/compiler/rangechecks/TestBadFoldCompare.java