From 1c0cad79c6b61b406635c6a09fad8877b8db4075 Mon Sep 17 00:00:00 2001
From: "Egor.Ushakov" <egor.ushakov@jetbrains.com>
Date: Wed, 3 May 2017 19:28:21 +0300
Subject: [PATCH] minor optimization

---
 .../decompose/FastExtendedPostdominanceHelper.java    | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/org/jetbrains/java/decompiler/modules/decompiler/decompose/FastExtendedPostdominanceHelper.java b/src/org/jetbrains/java/decompiler/modules/decompiler/decompose/FastExtendedPostdominanceHelper.java
index f37aedc..9a4e046 100644
--- a/src/org/jetbrains/java/decompiler/modules/decompiler/decompose/FastExtendedPostdominanceHelper.java
+++ b/src/org/jetbrains/java/decompiler/modules/decompiler/decompose/FastExtendedPostdominanceHelper.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2015 JetBrains s.r.o.
+ * Copyright 2000-2017 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -65,8 +65,9 @@ public class FastExtendedPostdominanceHelper {
 
     filterOnDominance(filter);
 
-    HashMap<Integer, Set<Integer>> res = new HashMap<>();
-    for (Entry<Integer, FastFixedSet<Integer>> entry : mapExtPostdominators.entrySet()) {
+    Set<Entry<Integer, FastFixedSet<Integer>>> entries = mapExtPostdominators.entrySet();
+    HashMap<Integer, Set<Integer>> res = new HashMap<>(entries.size());
+    for (Entry<Integer, FastFixedSet<Integer>> entry : entries) {
       res.put(entry.getKey(), entry.getValue().toPlainSet());
     }
 
@@ -173,7 +174,7 @@ public class FastExtendedPostdominanceHelper {
           lstPredSets.add(setPred);
         }
 
-        for (Integer id : setReachability.toPlainSet()) {
+        for (Integer id : setReachability) {
 
           FastFixedSet<Integer> setReachabilityCopy = setReachability.getCopy();
 
@@ -245,7 +246,7 @@ public class FastExtendedPostdominanceHelper {
         Integer nodeid = node.id;
         FastFixedSet<Integer> setReachability = mapSets.get(nodeid);
 
-        for (Integer id : setReachability.toPlainSet()) {
+        for (Integer id : setReachability) {
           mapExtPostdominators.get(id).add(nodeid);
         }