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diff graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotLIRGenerator.java @ 14943:e5a55d280f24

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Floating nodes for compressing and uncompressing pointers.
author Roland Schatz <roland.schatz@oracle.com>
date Tue, 01 Apr 2014 15:59:32 +0200
parents 88dfaf6448e0
children b14cb2d9253d
line wrap: on
line diff
--- a/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotLIRGenerator.java	Tue Apr 01 15:50:15 2014 +0200
+++ b/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotLIRGenerator.java	Tue Apr 01 15:59:32 2014 +0200
@@ -40,6 +40,7 @@
 import com.oracle.graal.hotspot.amd64.AMD64HotSpotMove.StoreCompressedConstantOp;
 import com.oracle.graal.hotspot.amd64.AMD64HotSpotMove.StoreCompressedPointer;
 import com.oracle.graal.hotspot.meta.*;
+import com.oracle.graal.hotspot.nodes.type.*;
 import com.oracle.graal.hotspot.stubs.*;
 import com.oracle.graal.lir.*;
 import com.oracle.graal.lir.StandardOp.NoOp;
@@ -419,4 +420,18 @@
         }
     }
 
+    @Override
+    public Value emitCompress(Value pointer, CompressEncoding encoding) {
+        Variable result = newVariable(NarrowOopStamp.NarrowOop);
+        append(new AMD64HotSpotMove.CompressPointer(result, asAllocatable(pointer), getProviders().getRegisters().getHeapBaseRegister().asValue(), encoding));
+        return result;
+    }
+
+    @Override
+    public Value emitUncompress(Value pointer, CompressEncoding encoding) {
+        Variable result = newVariable(Kind.Object);
+        append(new AMD64HotSpotMove.UncompressPointer(result, asAllocatable(pointer), getProviders().getRegisters().getHeapBaseRegister().asValue(), encoding));
+        return result;
+    }
+
 }