Examples with TopologicalTraverser com.jopdesign.common.graphutils.TopologicalTraverser used on opensource projects

Example 1 with TopologicalTraverser

use of com.jopdesign.common.graphutils.TopologicalTraverser in project jop by jop-devel.

the class WCAInvoker method updateWCEP.

private void updateWCEP() {
    if (!provideWCAExecCount)
        return;
    execCounts.clear();
    for (MethodInfo root : getWcaTargets()) {
        execCounts.put(root, 1L);
    }
    NodeVisitor<ExecutionContext> visitor = new NodeVisitor<ExecutionContext>() {

        @Override
        public boolean visitNode(ExecutionContext context) {
            MethodInfo method = context.getMethodInfo();
            MethodCode code = method.getCode();
            long ec = getExecCount(method);
            // skip methods which are not on the WCET path.. we can ship iterating over the childs too..
            if (ec == 0)
                return false;
            // iterate over all blocks in the CFG, find all invokes and add block execution counts to invokees
            ControlFlowGraph cfg = method.getCode().getControlFlowGraph(false);
            for (CFGNode node : cfg.getGraph().vertexSet()) {
                if (node instanceof InvokeNode) {
                    InvokeNode inv = (InvokeNode) node;
                    long ef = getExecFrequency(method, node);
                    for (MethodInfo invokee : inv.getImplementingMethods()) {
                        addExecCount(invokee, ec * ef);
                    }
                } else if (node instanceof BasicBlockNode) {
                    // check if we have a JVM invoke here (or an invoke not in a dedicated node..)
                    for (InstructionHandle ih : node.getBasicBlock().getInstructions()) {
                        if (!code.isInvokeSite(ih))
                            continue;
                        long ef = getExecFrequency(method, node);
                        for (MethodInfo invokee : method.getAppInfo().findImplementations(code.getInvokeSite(ih))) {
                            addExecCount(invokee, ec * ef);
                        }
                    }
                }
            }
            return true;
        }
    };
    TopologicalTraverser<ExecutionContext, ContextEdge> topOrder = new TopologicalTraverser<ExecutionContext, ContextEdge>(wcetTool.getCallGraph().getGraph(), visitor);
    topOrder.traverse();
}