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* version 2 for more details (a copy is included in the LICENSE file that
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package org.graalvm.compiler.core.test;
import java.util.List;
import org.junit.Test;
import org.graalvm.compiler.graph.Node;
import org.graalvm.compiler.graph.NodeMap;
import org.graalvm.compiler.nodes.FrameState;
import org.graalvm.compiler.nodes.LoopExitNode;
import org.graalvm.compiler.nodes.StructuredGraph;
import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
import org.graalvm.compiler.nodes.StructuredGraph.ScheduleResult;
import org.graalvm.compiler.nodes.calc.AddNode;
import org.graalvm.compiler.nodes.calc.BinaryArithmeticNode;
import org.graalvm.compiler.nodes.cfg.Block;
import org.graalvm.compiler.nodes.util.GraphUtil;
import org.graalvm.compiler.phases.schedule.SchedulePhase;
import org.graalvm.compiler.phases.schedule.SchedulePhase.SchedulingStrategy;
public class SchedulingTest extends GraphScheduleTest {
public static int testValueProxyInputsSnippet(int s) {
int i = 0;
while (true) {
i++;
int v = i - s * 2;
if (i == s) {
return v;
}
}
}
@Test
public void testValueProxyInputs() {
StructuredGraph graph = parseEager("testValueProxyInputsSnippet", AllowAssumptions.YES);
for (FrameState fs : graph.getNodes().filter(FrameState.class).snapshot()) {
fs.replaceAtUsages(null);
GraphUtil.killWithUnusedFloatingInputs(fs);
}
SchedulePhase schedulePhase = new SchedulePhase(SchedulingStrategy.LATEST);
schedulePhase.apply(graph);
ScheduleResult schedule = graph.getLastSchedule();
NodeMap<Block> nodeToBlock = schedule.getCFG().getNodeToBlock();
assertTrue(graph.getNodes().filter(LoopExitNode.class).count() == 1);
LoopExitNode loopExit = graph.getNodes().filter(LoopExitNode.class).first();
List<Node> list = schedule.nodesFor(nodeToBlock.get(loopExit));
for (BinaryArithmeticNode<?> node : graph.getNodes().filter(BinaryArithmeticNode.class)) {
if (!(node instanceof AddNode)) {
assertTrue(node.toString(), nodeToBlock.get(node) == nodeToBlock.get(loopExit));
assertTrue(list.indexOf(node) + " < " + list.indexOf(loopExit) + ", " + node + ", " + loopExit, list.indexOf(node) < list.indexOf(loopExit));
}
}
}
}