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package org.graalvm.compiler.nodes.spi;

import org.graalvm.compiler.graph.Node;
import org.graalvm.compiler.nodes.ValueNode;

import jdk.vm.ci.meta.Value;

public interface NodeValueMap {

    
Returns the operand that has been previously initialized by setResult(ValueNode, Value) with the result of an instruction. It's a code generation error to ask for the operand of ValueNode that doesn't have one yet.
Params:
  • node – A node that produces a result value.
/** * Returns the operand that has been previously initialized by * {@link #setResult(ValueNode, Value)} with the result of an instruction. It's a code * generation error to ask for the operand of ValueNode that doesn't have one yet. * * @param node A node that produces a result value. */
Value operand(Node node);
Returns:true if there is an operand associated with the node in the current block.
/** * @return {@code true} if there is an {@link Value operand} associated with the {@code node} in * the current block. */
boolean hasOperand(Node node);
Associates operand with the node in the current block.
Returns:operand
/** * Associates {@code operand} with the {@code node} in the current block. * * @return {@code operand} */
Value setResult(ValueNode node, Value operand);
Gets the ValueNode that produced a value. If the value is not associated with a ValueNode null is returned. This method is intended for debugging purposes only.
/** * Gets the {@link ValueNode} that produced a {@code value}. If the {@code value} is not * associated with a {@link ValueNode} {@code null} is returned. * * This method is intended for debugging purposes only. */
ValueNode valueForOperand(Value value); }