hg: jdk9/hs-comp/hotspot: 8027626: assert(Opcode() != Op_If || outcnt() == 2) failed: bad if #1

[roland.westrelin at oracle.com]

Changeset: c30f76d6f90f
Author:    roland
Date:      2015-01-08 11:00 +0100
URL:       http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/c30f76d6f90f

8027626: assert(Opcode() != Op_If || outcnt() == 2) failed: bad if #1
Summary: IGVN encounters IfNode with single projection when optimizing dying subgraph
Reviewed-by: kvn

! src/share/vm/opto/cfgnode.hpp
! src/share/vm/opto/ifnode.cpp
! src/share/vm/opto/node.cpp