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comparison graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/phases/InsertStateAfterPlaceholderPhase.java @ 5672:272ad540c464

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Canoncialize < to |<| for positive values Canoncialize IndexedLocation even for long constant index if the final displacement fits in an int remove PlaceHolderNodes when they don't hold a state
author Gilles Duboscq <duboscq@ssw.jku.at>
date Thu, 21 Jun 2012 16:29:14 +0200
parents a9b615da0cba
children
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5671:a65b2a11bf34 5672:272ad540c464
27 import com.oracle.graal.nodes.spi.*; 27 import com.oracle.graal.nodes.spi.*;
28 import com.oracle.graal.nodes.type.*; 28 import com.oracle.graal.nodes.type.*;
29 29
30 public class InsertStateAfterPlaceholderPhase extends Phase { 30 public class InsertStateAfterPlaceholderPhase extends Phase {
31 31
32 private static class PlaceholderNode extends AbstractStateSplit implements StateSplit, Node.IterableNodeType, LIRLowerable { 32 private static class PlaceholderNode extends AbstractStateSplit implements StateSplit, Node.IterableNodeType, LIRLowerable, Canonicalizable {
33 public PlaceholderNode() { 33 public PlaceholderNode() {
34 super(StampFactory.forVoid()); 34 super(StampFactory.forVoid());
35 } 35 }
36 36
37 @Override 37 @Override
41 41
42 @Override 42 @Override
43 public boolean hasSideEffect() { 43 public boolean hasSideEffect() {
44 return false; 44 return false;
45 } 45 }
46
47 @Override
48 public ValueNode canonical(CanonicalizerTool tool) {
49 if (stateAfter() == null) {
50 return null;
51 }
52 return this;
53 }
46 } 54 }
47 55
48 @Override 56 @Override
49 protected void run(StructuredGraph graph) { 57 protected void run(StructuredGraph graph) {
50 for (ReturnNode ret : graph.getNodes(ReturnNode.class)) { 58 for (ReturnNode ret : graph.getNodes(ReturnNode.class)) {