# HG changeset patch
# User Doug Simon <doug.simon@oracle.com>
# Date 1386962204 -3600
# Node ID 5e94b8c9e9d0ce03af013437c1f17f028c946f73
# Parent  c258331fdde695fa20cc11a899b9a342ae696e1d
added comment explaining insertion of nop during commoning of constant loads

diff -r c258331fdde6 -r 5e94b8c9e9d0 graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/gen/LIRGenerator.java
--- a/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/gen/LIRGenerator.java	Fri Dec 13 14:41:59 2013 +0100
+++ b/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/gen/LIRGenerator.java	Fri Dec 13 20:16:44 2013 +0100
@@ -257,6 +257,8 @@
                         loadedValue = load.variable;
                         if (dominator != load.block) {
                             if (load.index >= 0) {
+                                // Replace the move with a filler op so that the operation
+                                // list does not need to be adjusted.
                                 List<LIRInstruction> instructions = lir.lir(load.block);
                                 instructions.set(load.index, new NoOp(null, -1));
                                 load.index = -1;