# HG changeset patch
# User Stefan Anzinger <stefan.a.anzinger@oracle.com>
# Date 1417732252 -3600
# Node ID 7cd79d18f71a7793b5c0a65d90d4e9858ef2ebba
# Parent  caad1a70312d1d28fde5d921104ecdf90ab629b2
[SPARC] fix concurrency issues in register configuration caching (Use concurrenthashmap)

diff -r caad1a70312d -r 7cd79d18f71a graal/com.oracle.graal.hotspot.sparc/src/com/oracle/graal/hotspot/sparc/SPARCHotSpotRegisterConfig.java
--- a/graal/com.oracle.graal.hotspot.sparc/src/com/oracle/graal/hotspot/sparc/SPARCHotSpotRegisterConfig.java	Wed Dec 03 10:59:04 2014 +0100
+++ b/graal/com.oracle.graal.hotspot.sparc/src/com/oracle/graal/hotspot/sparc/SPARCHotSpotRegisterConfig.java	Thu Dec 04 23:30:52 2014 +0100
@@ -26,6 +26,7 @@
 import static com.oracle.graal.sparc.SPARC.*;
 
 import java.util.*;
+import java.util.concurrent.*;
 
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.code.CallingConvention.Type;
@@ -42,7 +43,7 @@
 
     private final Register[] allocatable;
 
-    private final HashMap<PlatformKind, Register[]> categorized = new HashMap<>();
+    private final Map<PlatformKind, Register[]> categorized = new ConcurrentHashMap<>(20);
 
     private final RegisterAttributes[] attributesMap;