# HG changeset patch
# User Christos Kotselidis <christos.kotselidis@oracle.com>
# Date 1373631462 -7200
# Node ID 0bd794eb822282b9edf77e3e687296d77dca45fb
# Parent  40f6bda3f91dd616681918f37cb00c3ae4c887c0
Add compressed oop support in HotSpot Backend

diff -r 40f6bda3f91d -r 0bd794eb8222 graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotBackend.java
--- a/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotBackend.java	Fri Jul 12 14:16:17 2013 +0200
+++ b/graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotBackend.java	Fri Jul 12 14:17:42 2013 +0200
@@ -236,7 +236,15 @@
             Register receiver = asRegister(cc.getArgument(0));
             AMD64Address src = new AMD64Address(receiver, config.hubOffset);
 
-            asm.cmpq(inlineCacheKlass, src);
+            AMD64HotSpotLIRGenerator gen = (AMD64HotSpotLIRGenerator) lirGen;
+            HotSpotRuntime hr = ((HotSpotRuntime) gen.getRuntime());
+            if (hr.config.useCompressedKlassPointers) {
+                Register register = r10;
+                AMD64Move.decodeKlassPointer(asm, register, src, hr.config.narrowKlassBase, hr.config.narrowKlassShift, hr.config.logKlassAlignment);
+                asm.cmpq(inlineCacheKlass, register);
+            } else {
+                asm.cmpq(inlineCacheKlass, src);
+            }
             asm.jcc(ConditionFlag.NotEqual, unverifiedStub);
         }