hg: jdk7/hotspot-comp/hotspot: 6746892: Register Allocator does not process a data phi with one unique input correctly

[vladimir.kozlov at sun.com]

Changeset: 1c6e3bfb543a
Author:    kvn
Date:      2008-09-10 14:29 -0700
URL:       http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/1c6e3bfb543a

6746892: Register Allocator does not process a data phi with one unique input correctly
Summary: Always look for the existing phi for a processed live_range.
Reviewed-by: rasbold

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