Examples with ValueNode org.graalvm.compiler.nodes.ValueNode used on opensource projects

Example 66 with ValueNode

use of org.graalvm.compiler.nodes.ValueNode in project graal by oracle.

the class AMD64AddressLoweringTest method convertBaseAndIndexToDisplacement.

@Test
public void convertBaseAndIndexToDisplacement() {
    ValueNode base = graph.unique(const64(1000));
    ValueNode index = graph.unique(const64(10));
    AddressNode result = lowering.lower(base, index);
    assertAddress(result, null, null, Scale.Times1, 1010);
}

Example 67 with ValueNode

use of org.graalvm.compiler.nodes.ValueNode in project graal by oracle.

the class AMD64AddressLoweringTest method convertBaseAndShiftedIndexToDisplacement.

@Test
public void convertBaseAndShiftedIndexToDisplacement() {
    ValueNode base = graph.addOrUniqueWithInputs(const64(1000));
    ValueNode index = graph.addOrUniqueWithInputs(new LeftShiftNode(const64(10), const32(1)));
    AddressNode result = lowering.lower(base, index);
    assertAddress(result, null, null, Scale.Times2, 1020);
}

Example 68 with ValueNode

use of org.graalvm.compiler.nodes.ValueNode in project graal by oracle.

the class AMD64AddressLoweringTest method convertBaseAndNegatedShiftedIndexToDisplacement.

@Test
public void convertBaseAndNegatedShiftedIndexToDisplacement() {
    ValueNode base = graph.addOrUniqueWithInputs(const64(1000));
    ValueNode index = graph.addOrUniqueWithInputs(new NegateNode(new LeftShiftNode(const64(10), const32(2))));
    AddressNode result = lowering.lower(base, index);
    assertAddress(result, null, null, Scale.Times4, 960);
}

Example 69 with ValueNode

use of org.graalvm.compiler.nodes.ValueNode in project graal by oracle.

the class AMD64AddressLoweringTest method convertBaseToDisplacement.

@Test
public void convertBaseToDisplacement() {
    ValueNode constantAddress = graph.addOrUniqueWithInputs(const64(1000));
    AddressNode result = lowering.lower(constantAddress, null);
    assertAddress(result, null, null, Scale.Times1, 1000);
}

Example 70 with ValueNode

use of org.graalvm.compiler.nodes.ValueNode in project graal by oracle.

the class AMD64AddressLowering method improve.

/**
 * Tries to optimize addresses so that they match the AMD64-specific addressing mode better
 * (base + index * scale + displacement).
 *
 * @param graph the current graph
 * @param debug the current debug context
 * @param ret the address that should be optimized
 * @param isBaseNegated determines if the address base is negated. if so, all values that are
 *            extracted from the base will be negated as well
 * @param isIndexNegated determines if the index is negated. if so, all values that are
 *            extracted from the index will be negated as well
 * @return true if the address was modified
 */
protected boolean improve(StructuredGraph graph, DebugContext debug, AMD64AddressNode ret, boolean isBaseNegated, boolean isIndexNegated) {
    ValueNode newBase = improveInput(ret, ret.getBase(), 0, isBaseNegated);
    if (newBase != ret.getBase()) {
        ret.setBase(newBase);
        return true;
    }
    ValueNode newIdx = improveInput(ret, ret.getIndex(), ret.getScale().log2, isIndexNegated);
    if (newIdx != ret.getIndex()) {
        ret.setIndex(newIdx);
        return true;
    }
    if (ret.getIndex() instanceof LeftShiftNode) {
        LeftShiftNode shift = (LeftShiftNode) ret.getIndex();
        if (shift.getY().isConstant()) {
            int amount = ret.getScale().log2 + shift.getY().asJavaConstant().asInt();
            Scale scale = Scale.fromShift(amount);
            if (scale != null) {
                ret.setIndex(shift.getX());
                ret.setScale(scale);
                return true;
            }
        }
    }
    if (ret.getScale() == Scale.Times1) {
        if (ret.getIndex() == null && ret.getBase() instanceof AddNode) {
            AddNode add = (AddNode) ret.getBase();
            ret.setBase(add.getX());
            ret.setIndex(considerNegation(graph, add.getY(), isBaseNegated));
            return true;
        }
        if (ret.getBase() == null && ret.getIndex() instanceof AddNode) {
            AddNode add = (AddNode) ret.getIndex();
            ret.setBase(considerNegation(graph, add.getX(), isIndexNegated));
            ret.setIndex(add.getY());
            return true;
        }
        if (ret.getBase() instanceof LeftShiftNode && !(ret.getIndex() instanceof LeftShiftNode)) {
            ValueNode tmp = ret.getBase();
            ret.setBase(considerNegation(graph, ret.getIndex(), isIndexNegated != isBaseNegated));
            ret.setIndex(considerNegation(graph, tmp, isIndexNegated != isBaseNegated));
            return true;
        }
    }
    return improveNegation(graph, debug, ret, isBaseNegated, isIndexNegated);
}