47  * Intrinsic for allocating an on-stack array of integers to hold the dimensions of a multianewarray
  48  * instruction.
  49  */
  50 @NodeInfo(cycles = CYCLES_2, size = SIZE_1)
  51 public final class DimensionsNode extends FixedWithNextNode implements LIRLowerable {
  52 
  53     public static final NodeClass<DimensionsNode> TYPE = NodeClass.create(DimensionsNode.class);
  54     protected final int rank;
  55 
  56     public DimensionsNode(@InjectedNodeParameter WordTypes wordTypes, int rank) {
  57         super(TYPE, StampFactory.forKind(wordTypes.getWordKind()));
  58         this.rank = rank;
  59     }
  60 
  61     @Override
  62     public void generate(NodeLIRBuilderTool gen) {
  63         LIRGeneratorTool lirGen = gen.getLIRGeneratorTool();
  64         int size = rank * 4;
  65         int wordSize = lirGen.target().wordSize;
  66         int slots = roundUp(size, wordSize) / wordSize;
  67         VirtualStackSlot array = lirGen.getResult().getFrameMapBuilder().allocateStackSlots(slots, new BitSet(0), null);
  68         Value result = lirGen.emitAddress(array);
  69         gen.setResult(this, result);
  70     }
  71 
  72     @NodeIntrinsic
  73     public static native Word allocaDimsArray(@ConstantNodeParameter int rank);
  74 }

  47  * Intrinsic for allocating an on-stack array of integers to hold the dimensions of a multianewarray
  48  * instruction.
  49  */
  50 @NodeInfo(cycles = CYCLES_2, size = SIZE_1)
  51 public final class DimensionsNode extends FixedWithNextNode implements LIRLowerable {
  52 
  53     public static final NodeClass<DimensionsNode> TYPE = NodeClass.create(DimensionsNode.class);
  54     protected final int rank;
  55 
  56     public DimensionsNode(@InjectedNodeParameter WordTypes wordTypes, int rank) {
  57         super(TYPE, StampFactory.forKind(wordTypes.getWordKind()));
  58         this.rank = rank;
  59     }
  60 
  61     @Override
  62     public void generate(NodeLIRBuilderTool gen) {
  63         LIRGeneratorTool lirGen = gen.getLIRGeneratorTool();
  64         int size = rank * 4;
  65         int wordSize = lirGen.target().wordSize;
  66         int slots = roundUp(size, wordSize) / wordSize;
  67         VirtualStackSlot array = lirGen.allocateStackSlots(slots, new BitSet(0), null);
  68         Value result = lirGen.emitAddress(array);
  69         gen.setResult(this, result);
  70     }
  71 
  72     @NodeIntrinsic
  73     public static native Word allocaDimsArray(@ConstantNodeParameter int rank);
  74 }