--- a/graal/GraalCompiler/src/com/sun/c1x/ir/Value.java	Fri May 27 14:58:55 2011 +0200
+++ b/graal/GraalCompiler/src/com/sun/c1x/ir/Value.java	Fri May 27 15:11:34 2011 +0200
@@ -56,11 +56,6 @@
 
     protected CiValue operand = CiValue.IllegalValue;
 
-    /**
-     * Used by {@link InstructionSubstituter}.
-     */
-    public Value subst;
-
     public abstract Merge block();
 
     /**
@@ -89,30 +84,6 @@
         throw new CloneNotSupportedException();
     }
 
-    /////////////////
-
-    /**
-     * Gets the instruction that should be substituted for this one. Note that this
-     * method is recursive; if the substituted instruction has a substitution, then
-     * the final substituted instruction will be returned. If there is no substitution
-     * for this instruction, {@code this} will be returned.
-     * @return the substitution for this instruction
-     */
-    public final Value subst() {
-        if (subst == null) {
-            return this;
-        }
-        return subst.subst();
-    }
-
-    /**
-     * Checks whether this instruction has a substitute.
-     * @return {@code true} if this instruction has a substitution.
-     */
-    public final boolean hasSubst() {
-        return subst != null;
-    }
-
     /**
      * Check whether this instruction has the specified flag set.
      * @param flag the flag to test