# HG changeset patch
# User Doug Simon <doug.simon@oracle.com>
# Date 1333534132 -7200
# Node ID 02da376dd2132bf0fa41a15cb61e9eff8254eb49
# Parent  20993edddd73b62d756a5752b363000765d07e02
abstracted word size in object array copy

diff -r 20993edddd73 -r 02da376dd213 graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/ArrayCopySnippets.java
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/ArrayCopySnippets.java	Wed Apr 04 09:19:44 2012 +0200
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/ArrayCopySnippets.java	Wed Apr 04 12:08:52 2012 +0200
@@ -280,7 +280,7 @@
     @Snippet
     public static void copyObjectsDown(Object src, long srcOffset, Object dest, long destOffset, int length)  {
         int header = arrayHeaderSizeFor(CiKind.Object);
-        for (long i = (length - 1) * 8; i >= 0; i -= 8) {
+        for (long i = (length - 1) * wordSize(); i >= 0; i -= wordSize()) {
             Object a = UnsafeLoadNode.load(src, header, i + srcOffset, CiKind.Object);
             DirectObjectStoreNode.store(dest, header, i + destOffset, a);
         }
@@ -341,7 +341,7 @@
     @Snippet
     public static void copyObjectsUp(Object src, long srcOffset, Object dest, long destOffset, int length)  {
         int header = arrayHeaderSizeFor(CiKind.Object);
-        for (long i = 0; i < length * 8L; i += 8) {
+        for (long i = 0; i < length * wordSize(); i += wordSize()) {
             Object a = UnsafeLoadNode.load(src, header, i + srcOffset, CiKind.Object);
             DirectObjectStoreNode.store(dest, header, i + destOffset, a);
         }
@@ -426,6 +426,11 @@
     }
 
     @Fold
+    private static int wordSize() {
+        return CompilerImpl.getInstance().getTarget().wordSize;
+    }
+
+    @Fold
     private static int arrayHeaderSizeFor(CiKind elementKind) {
         return CompilerImpl.getInstance().getConfig().getArrayOffset(elementKind);
     }