# HG changeset patch
# User Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
# Date 1423096090 -3600
# Node ID 18caaceabfdbf4c40d919e150edf6861180990b1
# Parent  41af11212ed308e59dbd87fe1b5c4dfc790cbba3
Create prototype for new graph builder plugin for loop explosion.

diff -r 41af11212ed3 -r 18caaceabfdb graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderConfiguration.java
--- a/graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderConfiguration.java	Thu Feb 05 01:24:09 2015 +0100
+++ b/graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderConfiguration.java	Thu Feb 05 01:28:10 2015 +0100
@@ -39,6 +39,7 @@
     private GraphBuilderPlugins.LoadFieldPlugin loadFieldPlugin;
     private GraphBuilderPlugins.ParameterPlugin parameterPlugin;
     private GraphBuilderPlugins.InlineInvokePlugin inlineInvokePlugin;
+    private GraphBuilderPlugins.LoopExplosionPlugin loopExplosionPlugin;
 
     public static enum DebugInfoMode {
         SafePointsOnly,
@@ -167,4 +168,12 @@
     public void setInlineInvokePlugin(GraphBuilderPlugins.InlineInvokePlugin inlineInvokePlugin) {
         this.inlineInvokePlugin = inlineInvokePlugin;
     }
+
+    public GraphBuilderPlugins.LoopExplosionPlugin getLoopExplosionPlugin() {
+        return loopExplosionPlugin;
+    }
+
+    public void setLoopExplosionPlugin(GraphBuilderPlugins.LoopExplosionPlugin loopExplosionPlugin) {
+        this.loopExplosionPlugin = loopExplosionPlugin;
+    }
 }
diff -r 41af11212ed3 -r 18caaceabfdb graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderPlugins.java
--- a/graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderPlugins.java	Thu Feb 05 01:24:09 2015 +0100
+++ b/graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderPlugins.java	Thu Feb 05 01:28:10 2015 +0100
@@ -49,6 +49,10 @@
         boolean shouldInlineInvoke(ResolvedJavaMethod method, int depth);
     }
 
+    public interface LoopExplosionPlugin extends GraphBuilderPlugin {
+        boolean shouldExplodeLoops(ResolvedJavaMethod method);
+    }
+
     /**
      * Plugin for handling a method invocation.
      */
diff -r 41af11212ed3 -r 18caaceabfdb graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/PartialEvaluator.java
--- a/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/PartialEvaluator.java	Thu Feb 05 01:24:09 2015 +0100
+++ b/graal/com.oracle.graal.truffle/src/com/oracle/graal/truffle/PartialEvaluator.java	Thu Feb 05 01:28:10 2015 +0100
@@ -185,12 +185,21 @@
 
     }
 
+    private class LoopExplosionPlugin implements GraphBuilderPlugins.LoopExplosionPlugin {
+
+        public boolean shouldExplodeLoops(ResolvedJavaMethod method) {
+            return method.getAnnotation(ExplodeLoop.class) == null;
+        }
+
+    }
+
     @SuppressWarnings("unused")
     private void fastPartialEvaluation(OptimizedCallTarget callTarget, Assumptions assumptions, StructuredGraph graph, PhaseContext baseContext, HighTierContext tierContext) {
         GraphBuilderConfiguration newConfig = configForRoot.copy();
         newConfig.setLoadFieldPlugin(new InterceptLoadFieldPlugin());
         newConfig.setParameterPlugin(new InterceptReceiverPlugin(callTarget));
         newConfig.setInlineInvokePlugin(new InlineInvokePlugin());
+        newConfig.setLoopExplosionPlugin(new LoopExplosionPlugin());
         DefaultGraphBuilderPlugins plugins = new DefaultGraphBuilderPlugins();
         Iterable<GraphBuilderPluginsProvider> sl = Services.load(GraphBuilderPluginsProvider.class);
         for (GraphBuilderPluginsProvider p : sl) {