Examples with FloatingReadNode org.graalvm.compiler.nodes.memory.FloatingReadNode used on opensource projects

Example 11 with FloatingReadNode

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

the class DefaultHotSpotLoweringProvider method lowerKlassLayoutHelperNode.

private void lowerKlassLayoutHelperNode(KlassLayoutHelperNode n, LoweringTool tool) {
    if (tool.getLoweringStage() == LoweringTool.StandardLoweringStage.HIGH_TIER) {
        return;
    }
    StructuredGraph graph = n.graph();
    assert !n.getHub().isConstant();
    AddressNode address = createOffsetAddress(graph, n.getHub(), runtime.getVMConfig().klassLayoutHelperOffset);
    n.replaceAtUsagesAndDelete(graph.unique(new FloatingReadNode(address, KLASS_LAYOUT_HELPER_LOCATION, null, n.stamp(NodeView.DEFAULT), null, BarrierType.NONE)));
}

Example 12 with FloatingReadNode

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

the class MemoryScheduleTest method assertReadWithinStartBlock.

private void assertReadWithinStartBlock(ScheduleResult schedule, boolean withinStartBlock) {
    boolean readEncountered = false;
    for (Node node : schedule.getBlockToNodesMap().get(schedule.getCFG().getStartBlock())) {
        if (node instanceof FloatingReadNode) {
            readEncountered = true;
        }
    }
    assertDeepEquals(withinStartBlock, readEncountered);
}

Example 13 with FloatingReadNode

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

the class MemoryScheduleTest method testBlockSchedule.

@Test
public void testBlockSchedule() {
    ScheduleResult schedule = getFinalSchedule("testBlockScheduleSnippet", TestMode.WITHOUT_FRAMESTATES);
    StructuredGraph graph = schedule.getCFG().graph;
    NodeIterable<WriteNode> writeNodes = graph.getNodes().filter(WriteNode.class);
    assertDeepEquals(1, schedule.getCFG().getBlocks().length);
    assertDeepEquals(8, writeNodes.count());
    assertDeepEquals(1, graph.getNodes().filter(FloatingReadNode.class).count());
    FloatingReadNode read = graph.getNodes().filter(FloatingReadNode.class).first();
    WriteNode[] writes = new WriteNode[8];
    int i = 0;
    for (WriteNode n : writeNodes) {
        writes[i] = n;
        i++;
    }
    assertOrderedAfterSchedule(schedule, writes[4], read);
    assertOrderedAfterSchedule(schedule, read, writes[5]);
    for (int j = 0; j < 7; j++) {
        assertOrderedAfterSchedule(schedule, writes[j], writes[j + 1]);
    }
}

Example 14 with FloatingReadNode

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

the class MemoryScheduleTest method assertReadAndWriteInSameBlock.

private static void assertReadAndWriteInSameBlock(ScheduleResult schedule, boolean inSame) {
    StructuredGraph graph = schedule.getCFG().graph;
    FloatingReadNode read = graph.getNodes().filter(FloatingReadNode.class).first();
    WriteNode write = graph.getNodes().filter(WriteNode.class).first();
    assertTrue(!(inSame ^ schedule.getCFG().blockFor(read) == schedule.getCFG().blockFor(write)));
}

Example 15 with FloatingReadNode

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

the class MemoryScheduleTest method assertReadWithinAllReturnBlocks.

private void assertReadWithinAllReturnBlocks(ScheduleResult schedule, boolean withinReturnBlock) {
    StructuredGraph graph = schedule.getCFG().graph;
    assertTrue(graph.getNodes(ReturnNode.TYPE).isNotEmpty());
    int withRead = 0;
    int returnBlocks = 0;
    for (ReturnNode returnNode : graph.getNodes(ReturnNode.TYPE)) {
        Block block = schedule.getCFG().getNodeToBlock().get(returnNode);
        for (Node node : schedule.getBlockToNodesMap().get(block)) {
            if (node instanceof FloatingReadNode) {
                withRead++;
                break;
            }
        }
        returnBlocks++;
    }
    assertDeepEquals(withRead == returnBlocks, withinReturnBlock);
}