# HG changeset patch
# User Christian Wimmer <christian.wimmer@oracle.com>
# Date 1431644901 25200
# Node ID e4a2ebb472713b9b52e0457350a529b94eaf255b
# Parent  d339bcb65015b2d1d1198960c521d5ca56527354
Add utility method to remove a phase with a given class

diff -r d339bcb65015 -r e4a2ebb47271 graal/com.oracle.graal.phases/src/com/oracle/graal/phases/PhaseSuite.java
--- a/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/PhaseSuite.java	Thu May 14 16:06:42 2015 -0700
+++ b/graal/com.oracle.graal.phases/src/com/oracle/graal/phases/PhaseSuite.java	Thu May 14 16:08:21 2015 -0700
@@ -70,6 +70,31 @@
         return false;
     }
 
+    /**
+     * Removes the first instance of the given phase class, looking recursively into inner phase
+     * suites.
+     */
+    public boolean removePhase(Class<? extends BasePhase<? super C>> phaseClass) {
+        ListIterator<BasePhase<? super C>> it = phases.listIterator();
+        while (it.hasNext()) {
+            BasePhase<? super C> phase = it.next();
+            if (phaseClass.isInstance(phase)) {
+                it.remove();
+                return true;
+            } else if (phase instanceof PhaseSuite) {
+                @SuppressWarnings("unchecked")
+                PhaseSuite<C> innerSuite = (PhaseSuite<C>) phase;
+                if (innerSuite.removePhase(phaseClass)) {
+                    if (innerSuite.phases.isEmpty()) {
+                        it.remove();
+                    }
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
     @Override
     protected void run(StructuredGraph graph, C context) {
         for (BasePhase<? super C> phase : phases) {