--- a/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/GraalCompilerTest.java	Mon Feb 24 17:31:15 2014 -0800
+++ b/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/GraalCompilerTest.java	Tue Feb 25 11:24:17 2014 +0100
@@ -83,10 +83,20 @@
     private final Backend backend;
     private final Suites suites;
 
+    private static boolean substitutionsInstalled;
+
+    private void installSubstitutions() {
+        if (!substitutionsInstalled) {
+            this.providers.getReplacements().registerSubstitutions(InjectProfileDataSubstitutions.class);
+            substitutionsInstalled = true;
+        }
+    }
+
     public GraalCompilerTest() {
         this.backend = Graal.getRequiredCapability(RuntimeProvider.class).getHostBackend();
         this.providers = getBackend().getProviders();
         this.suites = backend.getSuites().createSuites();
+        installSubstitutions();
     }
 
     /**
@@ -106,6 +116,7 @@
         }
         this.providers = backend.getProviders();
         this.suites = backend.getSuites().createSuites();
+        installSubstitutions();
     }
 
     @BeforeClass
@@ -643,4 +654,27 @@
     protected Replacements getReplacements() {
         return getProviders().getReplacements();
     }
+
+    /**
+     * Inject a probability for a branch condition into the profiling information of this test case.
+     * 
+     * @param p the probability that cond is true
+     * @param cond the condition of the branch
+     * @return cond
+     */
+    protected static boolean branchProbability(double p, boolean cond) {
+        return cond;
+    }
+
+    /**
+     * Inject an iteration count for a loop condition into the profiling information of this test
+     * case.
+     * 
+     * @param i the iteration count of the loop
+     * @param cond the condition of the loop
+     * @return cond
+     */
+    protected static boolean iterationCount(double i, boolean cond) {
+        return cond;
+    }
 }

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.compiler.test/src/com/oracle/graal/compiler/test/InjectProfileDataSubstitutions.java	Tue Feb 25 11:24:17 2014 +0100
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.graal.compiler.test;
+
+import com.oracle.graal.api.replacements.*;
+import com.oracle.graal.nodes.extended.*;
+
+@ClassSubstitution(GraalCompilerTest.class)
+class InjectProfileDataSubstitutions {
+
+    @MethodSubstitution
+    public static boolean branchProbability(double p, boolean cond) {
+        return BranchProbabilityNode.probability(p, cond);
+    }
+
+    @MethodSubstitution
+    public static boolean iterationCount(double i, boolean cond) {
+        return BranchProbabilityNode.probability(1. - 1. / i, cond);
+    }
+}