Mercurial > hg > graal-jvmci-8

diff graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotReferenceMap.java @ 21731:df9d2375512a

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Track max live register value in reference map
author Tom Rodriguez <tom.rodriguez@oracle.com>
date Wed, 03 Jun 2015 20:24:05 -0700
parents b9f9b8af17ff
children
line wrap: on
line diff
--- a/graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotReferenceMap.java	Wed Jun 03 19:57:38 2015 -0700
+++ b/graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotReferenceMap.java	Wed Jun 03 20:24:05 2015 -0700
@@ -33,6 +33,7 @@
 
     private Value[] objects;
     private int[] bytesPerElement;
+    private int maxRegisterSize;
     private ArrayList<Value> objectValues;
 
     private final TargetDescription target;
@@ -47,6 +48,7 @@
         objectValues = new ArrayList<>();
         objects = Value.NO_VALUES;
         bytesPerElement = null;
+        maxRegisterSize = 0;
     }
 
     @Override
@@ -58,6 +60,12 @@
         if (!lirKind.isValue()) {
             objectValues.add(v);
         }
+        if (isRegister(v)) {
+            int size = target.getSizeInBytes(lirKind.getPlatformKind());
+            if (size > maxRegisterSize) {
+                maxRegisterSize = size;
+            }
+        }
     }
 
     @Override