Mercurial > hg > truffle
changeset 9975:3743ac6347dd
Small refactoring and comment addition
| author | Christos Kotselidis <christos.kotselidis@oracle.com> |
|---|---|
| date | Mon, 10 Jun 2013 12:28:15 +0200 |
| parents | 01dd93600d02 |
| children | f6ceb0a3482e |
| files | graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotRuntime.java |
| diffstat | 1 files changed, 4 insertions(+), 1 deletions(-) [+] |
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--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotRuntime.java Mon Jun 10 12:18:36 2013 +0200 +++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotRuntime.java Mon Jun 10 12:28:15 2013 +0200 @@ -612,7 +612,10 @@ UnsafeLoadNode load = (UnsafeLoadNode) n; assert load.kind() != Kind.Illegal; IndexedLocationNode location = IndexedLocationNode.create(ANY_LOCATION, load.accessKind(), load.displacement(), load.offset(), graph, 1); - ReadNode memoryRead = graph.add(new ReadNode(load.object(), location, load.stamp(), WriteBarrierType.NONE, (!load.object().isNullConstant() && load.accessKind() == Kind.Object))); + // Unsafe Accesses to the metaspace or to any + // absolute address do not perform uncompression. + boolean compress = (!load.object().isNullConstant() && load.accessKind() == Kind.Object); + ReadNode memoryRead = graph.add(new ReadNode(load.object(), location, load.stamp(), WriteBarrierType.NONE, compress)); // An unsafe read must not floating outside its block as may float above an explicit // null check on its object. memoryRead.setGuard(AbstractBeginNode.prevBegin(load));