/*
* Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package org.graalvm.compiler.truffle.test.builtins;
import org.graalvm.compiler.truffle.GraalTruffleRuntime;
import org.graalvm.compiler.truffle.OptimizedCallTarget;
import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
import com.oracle.truffle.api.Truffle;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.nodes.IndirectCallNode;
import com.oracle.truffle.api.nodes.NodeInfo;
import com.oracle.truffle.sl.runtime.SLFunction;
import com.oracle.truffle.sl.runtime.SLNull;
/**
* Calls a given function until the Graal runtime decides to optimize the function. Use
* <code>waitForOptimization(function)</code> to wait until the runtime system has completed the
* possibly parallel optimization.
*
* @see SLWaitForOptimizationBuiltin
*/
@NodeInfo(shortName = "callUntilOptimized")
public abstract class SLCallUntilOptimizedBuiltin extends SLGraalRuntimeBuiltin {
private static final int MAX_CALLS = 10000;
private static final Object[] EMPTY_ARGS = new Object[0];
@Child private IndirectCallNode indirectCall = Truffle.getRuntime().createIndirectCallNode();
@Specialization
public SLFunction callUntilCompiled(SLFunction function, @SuppressWarnings("unused") SLNull checkTarget) {
return callUntilCompiled(function, false);
}
@Specialization
public SLFunction callUntilCompiled(SLFunction function, boolean checkTarget) {
OptimizedCallTarget target = ((OptimizedCallTarget) function.getCallTarget());
for (int i = 0; i < MAX_CALLS; i++) {
if (isCompiling(target)) {
break;
} else {
indirectCall.call(target, EMPTY_ARGS);
}
}
// call one more in compiled
indirectCall.call(target, EMPTY_ARGS);
if (checkTarget) {
checkTarget(target);
}
return function;
}
@TruffleBoundary
private static void checkTarget(OptimizedCallTarget target) throws SLAssertionError {
if (!target.isValid()) {
throw new SLAssertionError("Function " + target + " invalidated.");
}
}
@TruffleBoundary
private static boolean isCompiling(OptimizedCallTarget target) {
return ((GraalTruffleRuntime) Truffle.getRuntime()).isCompiling(target) || target.isValid();
}
}