hg: jdk/sandbox: 8201368: IfNode::fold_compares() may lead to incorrect execution

[chris.hegarty at oracle.com]

Changeset: 6d1f26b1ddfd
Author:    roland
Date:      2018-04-10 17:07 +0200
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/6d1f26b1ddfd

8201368: IfNode::fold_compares() may lead to incorrect execution
Reviewed-by: neliasso, kvn

! src/hotspot/share/opto/cfgnode.hpp
! src/hotspot/share/opto/ifnode.cpp
+ test/hotspot/jtreg/compiler/uncommontrap/FoldedIfNonDomMidIf.java