# HG changeset patch
# User Josef Eisl <josef.eisl@jku.at>
# Date 1394627892 -3600
# Node ID 6ce74db1c9fb9e360779e2c589dd16de8862a00a
# Parent  a6595f1b55b001c88d3d9afe251f788dba0ec2c1
Use List<T> instead of Iterable<T> in AbstractBlock to (temporary) allow editing.

diff -r a6595f1b55b0 -r 6ce74db1c9fb graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/GraalCompiler.java
--- a/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/GraalCompiler.java	Wed Mar 12 12:09:07 2014 +0100
+++ b/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/GraalCompiler.java	Wed Mar 12 13:38:12 2014 +0100
@@ -280,7 +280,7 @@
 
             try (Scope s = Debug.scope("ControlFlowOptimizations")) {
                 EdgeMoveOptimizer.optimize(lir);
-                ControlFlowOptimizer.optimize(lir);
+                ControlFlowOptimizer.optimize(lir, codeEmittingOrder);
                 if (lirGen.canEliminateRedundantMoves()) {
                     RedundantMoveElimination.optimize(lir, frameMap);
                 }
diff -r a6595f1b55b0 -r 6ce74db1c9fb graal/com.oracle.graal.lir/src/com/oracle/graal/lir/ControlFlowOptimizer.java
--- a/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/ControlFlowOptimizer.java	Wed Mar 12 12:09:07 2014 +0100
+++ b/graal/com.oracle.graal.lir/src/com/oracle/graal/lir/ControlFlowOptimizer.java	Wed Mar 12 13:38:12 2014 +0100
@@ -37,9 +37,8 @@
     /**
      * Performs control flow optimizations on the given LIR graph.
      */
-    public static void optimize(LIR lir) {
-        List<? extends AbstractBlock<?>> blocks = lir.codeEmittingOrder();
-        ControlFlowOptimizer.deleteEmptyBlocks(lir, blocks);
+    public static <T extends AbstractBlock<T>> void optimize(LIR lir, List<T> codeEmittingOrder) {
+        ControlFlowOptimizer.deleteEmptyBlocks(lir, codeEmittingOrder);
     }
 
     private ControlFlowOptimizer() {
@@ -80,15 +79,15 @@
         }
     }
 
-    private static void deleteEmptyBlocks(LIR lir, List<? extends AbstractBlock<?>> blocks) {
+    private static <T extends AbstractBlock<T>> void deleteEmptyBlocks(LIR lir, List<T> blocks) {
         assert verifyBlocks(lir, blocks);
-        Iterator<? extends AbstractBlock<?>> iterator = blocks.iterator();
+        Iterator<T> iterator = blocks.iterator();
         while (iterator.hasNext()) {
-            AbstractBlock<?> block = iterator.next();
+            T block = iterator.next();
             if (canDeleteBlock(lir, block)) {
                 // adjust successor and predecessor lists
-                AbstractBlock<?> other = block.getSuccessors().iterator().next();
-                for (AbstractBlock<?> pred : block.getPredecessors()) {
+                T other = block.getSuccessors().iterator().next();
+                for (AbstractBlock<T> pred : block.getPredecessors()) {
                     Collections.replaceAll(pred.getSuccessors(), block, other);
                 }
                 for (int i = 0; i < other.getPredecessorCount(); i++) {
diff -r a6595f1b55b0 -r 6ce74db1c9fb graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/AbstractBlock.java
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/AbstractBlock.java	Wed Mar 12 12:09:07 2014 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/cfg/AbstractBlock.java	Wed Mar 12 13:38:12 2014 +0100
@@ -22,6 +22,8 @@
  */
 package com.oracle.graal.nodes.cfg;
 
+import java.util.*;
+
 import com.oracle.graal.nodes.*;
 
 public interface AbstractBlock<T extends AbstractBlock<?>> {
@@ -40,11 +42,11 @@
 
     boolean isExceptionEntry();
 
-    Iterable<T> getPredecessors();
+    List<T> getPredecessors();
 
     int getPredecessorCount();
 
-    Iterable<T> getSuccessors();
+    List<T> getSuccessors();
 
     int getSuccessorCount();