1/*
2 * Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23package org.graalvm.compiler.core.test;
24
25import static jdk.vm.ci.runtime.JVMCICompiler.INVOCATION_ENTRY_BCI;
26import static org.graalvm.compiler.nodes.ConstantNode.getConstantNodes;
27import static org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin.InlineInfo.DO_NOT_INLINE_NO_EXCEPTION;
28import static org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin.InlineInfo.DO_NOT_INLINE_WITH_EXCEPTION;
29
30import java.lang.annotation.ElementType;
31import java.lang.annotation.Retention;
32import java.lang.annotation.RetentionPolicy;
33import java.lang.annotation.Target;
34import java.lang.reflect.Constructor;
35import java.lang.reflect.Executable;
36import java.lang.reflect.InvocationTargetException;
37import java.lang.reflect.Method;
38import java.util.ArrayList;
39import java.util.Arrays;
40import java.util.Collection;
41import java.util.Collections;
42import java.util.EnumMap;
43import java.util.HashMap;
44import java.util.List;
45import java.util.ListIterator;
46import java.util.Map;
47import java.util.Set;
48import java.util.function.Supplier;
49
50import org.graalvm.compiler.api.directives.GraalDirectives;
51import org.graalvm.compiler.api.replacements.SnippetReflectionProvider;
52import org.graalvm.compiler.api.test.Graal;
53import org.graalvm.compiler.code.CompilationResult;
54import org.graalvm.compiler.core.CompilationPrinter;
55import org.graalvm.compiler.core.GraalCompiler;
56import org.graalvm.compiler.core.GraalCompiler.Request;
57import org.graalvm.compiler.core.common.CompilationIdentifier;
58import org.graalvm.compiler.core.common.type.StampFactory;
59import org.graalvm.compiler.core.target.Backend;
60import org.graalvm.compiler.debug.DebugContext;
61import org.graalvm.compiler.debug.DebugDumpHandler;
62import org.graalvm.compiler.debug.DebugDumpScope;
63import org.graalvm.compiler.debug.DebugHandlersFactory;
64import org.graalvm.compiler.debug.GraalError;
65import org.graalvm.compiler.debug.TTY;
66import org.graalvm.compiler.graph.Node;
67import org.graalvm.compiler.graph.NodeClass;
68import org.graalvm.compiler.graph.NodeMap;
69import org.graalvm.compiler.java.BytecodeParser;
70import org.graalvm.compiler.java.ComputeLoopFrequenciesClosure;
71import org.graalvm.compiler.java.GraphBuilderPhase;
72import org.graalvm.compiler.lir.asm.CompilationResultBuilderFactory;
73import org.graalvm.compiler.lir.phases.LIRSuites;
74import org.graalvm.compiler.nodeinfo.NodeInfo;
75import org.graalvm.compiler.nodeinfo.NodeSize;
76import org.graalvm.compiler.nodeinfo.Verbosity;
77import org.graalvm.compiler.nodes.BreakpointNode;
78import org.graalvm.compiler.nodes.Cancellable;
79import org.graalvm.compiler.nodes.ConstantNode;
80import org.graalvm.compiler.nodes.FixedWithNextNode;
81import org.graalvm.compiler.nodes.FrameState;
82import org.graalvm.compiler.nodes.FullInfopointNode;
83import org.graalvm.compiler.nodes.InvokeNode;
84import org.graalvm.compiler.nodes.InvokeWithExceptionNode;
85import org.graalvm.compiler.nodes.ParameterNode;
86import org.graalvm.compiler.nodes.ProxyNode;
87import org.graalvm.compiler.nodes.ReturnNode;
88import org.graalvm.compiler.nodes.StructuredGraph;
89import org.graalvm.compiler.nodes.StructuredGraph.AllowAssumptions;
90import org.graalvm.compiler.nodes.StructuredGraph.Builder;
91import org.graalvm.compiler.nodes.StructuredGraph.ScheduleResult;
92import org.graalvm.compiler.nodes.ValueNode;
93import org.graalvm.compiler.nodes.cfg.Block;
94import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration;
95import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration.Plugins;
96import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderContext;
97import org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin;
98import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin;
99import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugins;
100import org.graalvm.compiler.nodes.java.AccessFieldNode;
101import org.graalvm.compiler.nodes.spi.LoweringProvider;
102import org.graalvm.compiler.nodes.spi.Replacements;
103import org.graalvm.compiler.nodes.virtual.VirtualObjectNode;
104import org.graalvm.compiler.options.OptionValues;
105import org.graalvm.compiler.phases.BasePhase;
106import org.graalvm.compiler.phases.OptimisticOptimizations;
107import org.graalvm.compiler.phases.Phase;
108import org.graalvm.compiler.phases.PhaseSuite;
109import org.graalvm.compiler.phases.common.CanonicalizerPhase;
110import org.graalvm.compiler.phases.common.ConvertDeoptimizeToGuardPhase;
111import org.graalvm.compiler.phases.schedule.SchedulePhase;
112import org.graalvm.compiler.phases.schedule.SchedulePhase.SchedulingStrategy;
113import org.graalvm.compiler.phases.tiers.HighTierContext;
114import org.graalvm.compiler.phases.tiers.MidTierContext;
115import org.graalvm.compiler.phases.tiers.Suites;
116import org.graalvm.compiler.phases.tiers.TargetProvider;
117import org.graalvm.compiler.phases.util.Providers;
118import org.graalvm.compiler.printer.GraalDebugHandlersFactory;
119import org.graalvm.compiler.runtime.RuntimeProvider;
120import org.graalvm.compiler.test.AddExports;
121import org.graalvm.compiler.test.GraalTest;
122import org.graalvm.compiler.test.JLModule;
123import org.junit.After;
124import org.junit.Assert;
125import org.junit.Test;
126import org.junit.internal.AssumptionViolatedException;
127
128import jdk.vm.ci.code.Architecture;
129import jdk.vm.ci.code.BailoutException;
130import jdk.vm.ci.code.CodeCacheProvider;
131import jdk.vm.ci.code.InstalledCode;
132import jdk.vm.ci.code.TargetDescription;
133import jdk.vm.ci.meta.Assumptions.Assumption;
134import jdk.vm.ci.meta.ConstantReflectionProvider;
135import jdk.vm.ci.meta.DeoptimizationReason;
136import jdk.vm.ci.meta.JavaKind;
137import jdk.vm.ci.meta.JavaType;
138import jdk.vm.ci.meta.MetaAccessProvider;
139import jdk.vm.ci.meta.ProfilingInfo;
140import jdk.vm.ci.meta.ResolvedJavaMethod;
141import jdk.vm.ci.meta.ResolvedJavaType;
142import jdk.vm.ci.meta.SpeculationLog;
143
144/**
145 * Base class for Graal compiler unit tests.
146 * <p>
147 * White box tests for Graal compiler transformations use this pattern:
148 * <ol>
149 * <li>Create a graph by {@linkplain #parseEager parsing} a method.</li>
150 * <li>Manually modify the graph (e.g. replace a parameter node with a constant).</li>
151 * <li>Apply a transformation to the graph.</li>
152 * <li>Assert that the transformed graph is equal to an expected graph.</li>
153 * </ol>
154 * <p>
155 * See {@link InvokeHintsTest} as an example of a white box test.
156 * <p>
157 * Black box tests use the {@link #test(String, Object...)} or
158 * {@link #testN(int, String, Object...)} to execute some method in the interpreter and compare its
159 * result against that produced by a Graal compiled version of the method.
160 * <p>
161 * These tests will be run by the {@code mx unittest} command.
162 */
163@AddExports({"java.base/jdk.internal.org.objectweb.asm", "java.base/jdk.internal.org.objectweb.asm.tree"})
164public abstract class GraalCompilerTest extends GraalTest {
165
166    /**
167     * Gets the initial option values provided by the Graal runtime. These are option values
168     * typically parsed from the command line.
169     */
170    public static OptionValues getInitialOptions() {
171        return Graal.getRequiredCapability(OptionValues.class);
172    }
173
174    private static final int BAILOUT_RETRY_LIMIT = 1;
175    private final Providers providers;
176    private final Backend backend;
177
178    /**
179     * Representative class for the {@code java.base} module.
180     */
181    public static final Class<?> JAVA_BASE = Class.class;
182
183    /**
184     * Exports the package named {@code packageName} declared in {@code moduleMember}'s module to
185     * this object's module. This must be called before accessing packages that are no longer public
186     * as of JDK 9.
187     */
188    protected final void exportPackage(Class<?> moduleMember, String packageName) {
189        if (!Java8OrEarlier) {
190            JLModule.exportPackageTo(moduleMember, packageName, getClass());
191        }
192    }
193
194    /**
195     * Denotes a test method that must be inlined by the {@link BytecodeParser}.
196     */
197    @Target({ElementType.METHOD, ElementType.CONSTRUCTOR})
198    @Retention(RetentionPolicy.RUNTIME)
199    public @interface BytecodeParserForceInline {
200    }
201
202    /**
203     * Denotes a test method that must never be inlined by the {@link BytecodeParser}.
204     */
205    @Retention(RetentionPolicy.RUNTIME)
206    @Target({ElementType.METHOD, ElementType.CONSTRUCTOR})
207    public @interface BytecodeParserNeverInline {
208        /**
209         * Specifies if the call should be implemented with {@link InvokeWithExceptionNode} instead
210         * of {@link InvokeNode}.
211         */
212        boolean invokeWithException() default false;
213    }
214
215    /**
216     * Can be overridden by unit tests to verify properties of the graph.
217     *
218     * @param graph the graph at the end of HighTier
219     */
220    protected boolean checkHighTierGraph(StructuredGraph graph) {
221        return true;
222    }
223
224    /**
225     * Can be overridden by unit tests to verify properties of the graph.
226     *
227     * @param graph the graph at the end of MidTier
228     */
229    protected boolean checkMidTierGraph(StructuredGraph graph) {
230        return true;
231    }
232
233    /**
234     * Can be overridden by unit tests to verify properties of the graph.
235     *
236     * @param graph the graph at the end of LowTier
237     */
238    protected boolean checkLowTierGraph(StructuredGraph graph) {
239        return true;
240    }
241
242    protected static void breakpoint() {
243    }
244
245    @SuppressWarnings("unused")
246    protected static void breakpoint(int arg0) {
247    }
248
249    protected static void shouldBeOptimizedAway() {
250    }
251
252    protected Suites createSuites(OptionValues opts) {
253        Suites ret = backend.getSuites().getDefaultSuites(opts).copy();
254        ListIterator<BasePhase<? super HighTierContext>> iter = ret.getHighTier().findPhase(ConvertDeoptimizeToGuardPhase.class, true);
255        if (iter == null) {
256            /*
257             * in the economy configuration, we don't have the ConvertDeoptimizeToGuard phase, so we
258             * just select the first CanonicalizerPhase in HighTier
259             */
260            iter = ret.getHighTier().findPhase(CanonicalizerPhase.class);
261        }
262        iter.add(new Phase() {
263
264            @Override
265            protected void run(StructuredGraph graph) {
266                ComputeLoopFrequenciesClosure.compute(graph);
267            }
268
269            @Override
270            public float codeSizeIncrease() {
271                return NodeSize.IGNORE_SIZE_CONTRACT_FACTOR;
272            }
273
274            @Override
275            protected CharSequence getName() {
276                return "ComputeLoopFrequenciesPhase";
277            }
278        });
279        ret.getHighTier().appendPhase(new Phase() {
280
281            @Override
282            protected void run(StructuredGraph graph) {
283                assert checkHighTierGraph(graph) : "failed HighTier graph check";
284            }
285
286            @Override
287            public float codeSizeIncrease() {
288                return NodeSize.IGNORE_SIZE_CONTRACT_FACTOR;
289            }
290
291            @Override
292            protected CharSequence getName() {
293                return "CheckGraphPhase";
294            }
295        });
296        ret.getMidTier().appendPhase(new Phase() {
297
298            @Override
299            protected void run(StructuredGraph graph) {
300                assert checkMidTierGraph(graph) : "failed MidTier graph check";
301            }
302
303            @Override
304            public float codeSizeIncrease() {
305                return NodeSize.IGNORE_SIZE_CONTRACT_FACTOR;
306            }
307
308            @Override
309            protected CharSequence getName() {
310                return "CheckGraphPhase";
311            }
312        });
313        ret.getLowTier().appendPhase(new Phase() {
314
315            @Override
316            protected void run(StructuredGraph graph) {
317                assert checkLowTierGraph(graph) : "failed LowTier graph check";
318            }
319
320            @Override
321            public float codeSizeIncrease() {
322                return NodeSize.IGNORE_SIZE_CONTRACT_FACTOR;
323            }
324
325            @Override
326            protected CharSequence getName() {
327                return "CheckGraphPhase";
328            }
329        });
330        return ret;
331    }
332
333    protected LIRSuites createLIRSuites(OptionValues opts) {
334        LIRSuites ret = backend.getSuites().getDefaultLIRSuites(opts).copy();
335        return ret;
336    }
337
338    public GraalCompilerTest() {
339        this.backend = Graal.getRequiredCapability(RuntimeProvider.class).getHostBackend();
340        this.providers = getBackend().getProviders();
341    }
342
343    /**
344     * Set up a test for a non-default backend. The test should check (via {@link #getBackend()} )
345     * whether the desired backend is available.
346     *
347     * @param arch the name of the desired backend architecture
348     */
349    public GraalCompilerTest(Class<? extends Architecture> arch) {
350        RuntimeProvider runtime = Graal.getRequiredCapability(RuntimeProvider.class);
351        Backend b = runtime.getBackend(arch);
352        if (b != null) {
353            this.backend = b;
354        } else {
355            // Fall back to the default/host backend
356            this.backend = runtime.getHostBackend();
357        }
358        this.providers = backend.getProviders();
359    }
360
361    /**
362     * Set up a test for a non-default backend.
363     *
364     * @param backend the desired backend
365     */
366    public GraalCompilerTest(Backend backend) {
367        this.backend = backend;
368        this.providers = backend.getProviders();
369    }
370
371    @Override
372    @After
373    public void afterTest() {
374        if (invocationPluginExtensions != null) {
375            synchronized (this) {
376                if (invocationPluginExtensions != null) {
377                    extendedInvocationPlugins.removeTestPlugins(invocationPluginExtensions);
378                    extendedInvocationPlugins = null;
379                    invocationPluginExtensions = null;
380                }
381            }
382        }
383        super.afterTest();
384    }
385
386    /**
387     * Gets a {@link DebugContext} object corresponding to {@code options}, creating a new one if
388     * none currently exists. Debug contexts created by this method will have their
389     * {@link DebugDumpHandler}s closed in {@link #afterTest()}.
390     */
391    protected DebugContext getDebugContext() {
392        return getDebugContext(getInitialOptions());
393    }
394
395    @Override
396    protected Collection<DebugHandlersFactory> getDebugHandlersFactories() {
397        return Collections.singletonList(new GraalDebugHandlersFactory(getSnippetReflection()));
398    }
399
400    protected void assertEquals(StructuredGraph expected, StructuredGraph graph) {
401        assertEquals(expected, graph, false, true);
402    }
403
404    protected int countUnusedConstants(StructuredGraph graph) {
405        int total = 0;
406        for (ConstantNode node : getConstantNodes(graph)) {
407            if (node.hasNoUsages()) {
408                total++;
409            }
410        }
411        return total;
412    }
413
414    protected int getNodeCountExcludingUnusedConstants(StructuredGraph graph) {
415        return graph.getNodeCount() - countUnusedConstants(graph);
416    }
417
418    protected void assertEquals(StructuredGraph expected, StructuredGraph graph, boolean excludeVirtual, boolean checkConstants) {
419        String expectedString = getCanonicalGraphString(expected, excludeVirtual, checkConstants);
420        String actualString = getCanonicalGraphString(graph, excludeVirtual, checkConstants);
421        String mismatchString = compareGraphStrings(expected, expectedString, graph, actualString);
422
423        if (!excludeVirtual && getNodeCountExcludingUnusedConstants(expected) != getNodeCountExcludingUnusedConstants(graph)) {
424            expected.getDebug().dump(DebugContext.BASIC_LEVEL, expected, "Node count not matching - expected");
425            graph.getDebug().dump(DebugContext.BASIC_LEVEL, graph, "Node count not matching - actual");
426            Assert.fail("Graphs do not have the same number of nodes: " + expected.getNodeCount() + " vs. " + graph.getNodeCount() + "\n" + mismatchString);
427        }
428        if (!expectedString.equals(actualString)) {
429            expected.getDebug().dump(DebugContext.BASIC_LEVEL, expected, "mismatching graphs - expected");
430            graph.getDebug().dump(DebugContext.BASIC_LEVEL, graph, "mismatching graphs - actual");
431            Assert.fail(mismatchString);
432        }
433    }
434
435    private static String compareGraphStrings(StructuredGraph expectedGraph, String expectedString, StructuredGraph actualGraph, String actualString) {
436        if (!expectedString.equals(actualString)) {
437            String[] expectedLines = expectedString.split("\n");
438            String[] actualLines = actualString.split("\n");
439            int diffIndex = -1;
440            int limit = Math.min(actualLines.length, expectedLines.length);
441            String marker = " <<<";
442            for (int i = 0; i < limit; i++) {
443                if (!expectedLines[i].equals(actualLines[i])) {
444                    diffIndex = i;
445                    break;
446                }
447            }
448            if (diffIndex == -1) {
449                // Prefix is the same so add some space after the prefix
450                diffIndex = limit;
451                if (actualLines.length == limit) {
452                    actualLines = Arrays.copyOf(actualLines, limit + 1);
453                    actualLines[diffIndex] = "";
454                } else {
455                    assert expectedLines.length == limit;
456                    expectedLines = Arrays.copyOf(expectedLines, limit + 1);
457                    expectedLines[diffIndex] = "";
458                }
459            }
460            // Place a marker next to the first line that differs
461            expectedLines[diffIndex] = expectedLines[diffIndex] + marker;
462            actualLines[diffIndex] = actualLines[diffIndex] + marker;
463            String ediff = String.join("\n", expectedLines);
464            String adiff = String.join("\n", actualLines);
465            return "mismatch in graphs:\n========= expected (" + expectedGraph + ") =========\n" + ediff + "\n\n========= actual (" + actualGraph + ") =========\n" + adiff;
466        } else {
467            return "mismatch in graphs";
468        }
469    }
470
471    protected void assertOptimizedAway(StructuredGraph g) {
472        Assert.assertEquals(0, g.getNodes().filter(NotOptimizedNode.class).count());
473    }
474
475    protected void assertConstantReturn(StructuredGraph graph, int value) {
476        String graphString = getCanonicalGraphString(graph, false, true);
477        Assert.assertEquals("unexpected number of ReturnNodes: " + graphString, graph.getNodes(ReturnNode.TYPE).count(), 1);
478        ValueNode result = graph.getNodes(ReturnNode.TYPE).first().result();
479        Assert.assertTrue("unexpected ReturnNode result node: " + graphString, result.isConstant());
480        Assert.assertEquals("unexpected ReturnNode result kind: " + graphString, result.asJavaConstant().getJavaKind(), JavaKind.Int);
481        Assert.assertEquals("unexpected ReturnNode result: " + graphString, result.asJavaConstant().asInt(), value);
482    }
483
484    protected static String getCanonicalGraphString(StructuredGraph graph, boolean excludeVirtual, boolean checkConstants) {
485        SchedulePhase schedule = new SchedulePhase(SchedulingStrategy.EARLIEST);
486        schedule.apply(graph);
487        ScheduleResult scheduleResult = graph.getLastSchedule();
488
489        NodeMap<Integer> canonicalId = graph.createNodeMap();
490        int nextId = 0;
491
492        List<String> constantsLines = new ArrayList<>();
493
494        StringBuilder result = new StringBuilder();
495        for (Block block : scheduleResult.getCFG().getBlocks()) {
496            result.append("Block ").append(block).append(' ');
497            if (block == scheduleResult.getCFG().getStartBlock()) {
498                result.append("* ");
499            }
500            result.append("-> ");
501            for (Block succ : block.getSuccessors()) {
502                result.append(succ).append(' ');
503            }
504            result.append('\n');
505            for (Node node : scheduleResult.getBlockToNodesMap().get(block)) {
506                if (node instanceof ValueNode && node.isAlive()) {
507                    if (!excludeVirtual || !(node instanceof VirtualObjectNode || node instanceof ProxyNode || node instanceof FullInfopointNode || node instanceof ParameterNode)) {
508                        if (node instanceof ConstantNode) {
509                            String name = checkConstants ? node.toString(Verbosity.Name) : node.getClass().getSimpleName();
510                            if (excludeVirtual) {
511                                constantsLines.add(name);
512                            } else {
513                                constantsLines.add(name + "    (" + filteredUsageCount(node) + ")");
514                            }
515                        } else {
516                            int id;
517                            if (canonicalId.get(node) != null) {
518                                id = canonicalId.get(node);
519                            } else {
520                                id = nextId++;
521                                canonicalId.set(node, id);
522                            }
523                            String name = node.getClass().getSimpleName();
524                            result.append("  ").append(id).append('|').append(name);
525                            if (node instanceof AccessFieldNode) {
526                                result.append('#');
527                                result.append(((AccessFieldNode) node).field());
528                            }
529                            if (!excludeVirtual) {
530                                result.append("    (");
531                                result.append(filteredUsageCount(node));
532                                result.append(')');
533                            }
534                            result.append('\n');
535                        }
536                    }
537                }
538            }
539        }
540
541        StringBuilder constantsLinesResult = new StringBuilder();
542        constantsLinesResult.append(constantsLines.size()).append(" constants:\n");
543        Collections.sort(constantsLines);
544        for (String s : constantsLines) {
545            constantsLinesResult.append(s);
546            constantsLinesResult.append('\n');
547        }
548
549        return constantsLinesResult.toString() + result.toString();
550    }
551
552    /**
553     * @return usage count excluding {@link FrameState} usages
554     */
555    private static int filteredUsageCount(Node node) {
556        return node.usages().filter(n -> !(n instanceof FrameState)).count();
557    }
558
559    /**
560     * @param graph
561     * @return a scheduled textual dump of {@code graph} .
562     */
563    protected static String getScheduledGraphString(StructuredGraph graph) {
564        SchedulePhase schedule = new SchedulePhase(SchedulingStrategy.EARLIEST);
565        schedule.apply(graph);
566        ScheduleResult scheduleResult = graph.getLastSchedule();
567
568        StringBuilder result = new StringBuilder();
569        Block[] blocks = scheduleResult.getCFG().getBlocks();
570        for (Block block : blocks) {
571            result.append("Block ").append(block).append(' ');
572            if (block == scheduleResult.getCFG().getStartBlock()) {
573                result.append("* ");
574            }
575            result.append("-> ");
576            for (Block succ : block.getSuccessors()) {
577                result.append(succ).append(' ');
578            }
579            result.append('\n');
580            for (Node node : scheduleResult.getBlockToNodesMap().get(block)) {
581                result.append(String.format("%1S\n", node));
582            }
583        }
584        return result.toString();
585    }
586
587    protected Backend getBackend() {
588        return backend;
589    }
590
591    protected final Providers getProviders() {
592        return providers;
593    }
594
595    protected HighTierContext getDefaultHighTierContext() {
596        return new HighTierContext(getProviders(), getDefaultGraphBuilderSuite(), OptimisticOptimizations.ALL);
597    }
598
599    protected MidTierContext getDefaultMidTierContext() {
600        return new MidTierContext(getProviders(), getTargetProvider(), OptimisticOptimizations.ALL, null);
601    }
602
603    protected SnippetReflectionProvider getSnippetReflection() {
604        return Graal.getRequiredCapability(SnippetReflectionProvider.class);
605    }
606
607    protected TargetDescription getTarget() {
608        return getTargetProvider().getTarget();
609    }
610
611    protected TargetProvider getTargetProvider() {
612        return getBackend();
613    }
614
615    protected CodeCacheProvider getCodeCache() {
616        return getProviders().getCodeCache();
617    }
618
619    protected ConstantReflectionProvider getConstantReflection() {
620        return getProviders().getConstantReflection();
621    }
622
623    protected MetaAccessProvider getMetaAccess() {
624        return getProviders().getMetaAccess();
625    }
626
627    protected LoweringProvider getLowerer() {
628        return getProviders().getLowerer();
629    }
630
631    protected CompilationIdentifier getCompilationId(ResolvedJavaMethod method) {
632        return getBackend().getCompilationIdentifier(method);
633    }
634
635    protected CompilationIdentifier getOrCreateCompilationId(final ResolvedJavaMethod installedCodeOwner, StructuredGraph graph) {
636        if (graph != null) {
637            return graph.compilationId();
638        }
639        return getCompilationId(installedCodeOwner);
640    }
641
642    protected void testN(int n, final String name, final Object... args) {
643        final List<Throwable> errors = new ArrayList<>(n);
644        Thread[] threads = new Thread[n];
645        for (int i = 0; i < n; i++) {
646            Thread t = new Thread(i + ":" + name) {
647
648                @Override
649                public void run() {
650                    try {
651                        test(name, args);
652                    } catch (Throwable e) {
653                        errors.add(e);
654                    }
655                }
656            };
657            threads[i] = t;
658            t.start();
659        }
660        for (int i = 0; i < n; i++) {
661            try {
662                threads[i].join();
663            } catch (InterruptedException e) {
664                errors.add(e);
665            }
666        }
667        if (!errors.isEmpty()) {
668            throw new MultiCauseAssertionError(errors.size() + " failures", errors.toArray(new Throwable[errors.size()]));
669        }
670    }
671
672    protected Object referenceInvoke(ResolvedJavaMethod method, Object receiver, Object... args)
673                    throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, InstantiationException {
674        return invoke(method, receiver, args);
675    }
676
677    public static class Result {
678
679        public final Object returnValue;
680        public final Throwable exception;
681
682        public Result(Object returnValue, Throwable exception) {
683            this.returnValue = returnValue;
684            this.exception = exception;
685        }
686
687        @Override
688        public String toString() {
689            return exception == null ? returnValue == null ? "null" : returnValue.toString() : "!" + exception;
690        }
691    }
692
693    /**
694     * Called before a test is executed.
695     */
696    protected void before(@SuppressWarnings("unused") ResolvedJavaMethod method) {
697    }
698
699    /**
700     * Called after a test is executed.
701     */
702    protected void after() {
703    }
704
705    protected Result executeExpected(ResolvedJavaMethod method, Object receiver, Object... args) {
706        before(method);
707        try {
708            // This gives us both the expected return value as well as ensuring that the method to
709            // be compiled is fully resolved
710            return new Result(referenceInvoke(method, receiver, args), null);
711        } catch (InvocationTargetException e) {
712            return new Result(null, e.getTargetException());
713        } catch (Exception e) {
714            throw new RuntimeException(e);
715        } finally {
716            after();
717        }
718    }
719
720    protected Result executeActual(ResolvedJavaMethod method, Object receiver, Object... args) {
721        return executeActual(getInitialOptions(), method, receiver, args);
722    }
723
724    protected Result executeActual(OptionValues options, ResolvedJavaMethod method, Object receiver, Object... args) {
725        before(method);
726        Object[] executeArgs = argsWithReceiver(receiver, args);
727
728        checkArgs(method, executeArgs);
729
730        InstalledCode compiledMethod = getCode(method, options);
731        try {
732            return new Result(compiledMethod.executeVarargs(executeArgs), null);
733        } catch (Throwable e) {
734            return new Result(null, e);
735        } finally {
736            after();
737        }
738    }
739
740    protected void checkArgs(ResolvedJavaMethod method, Object[] args) {
741        JavaType[] sig = method.toParameterTypes();
742        Assert.assertEquals(sig.length, args.length);
743        for (int i = 0; i < args.length; i++) {
744            JavaType javaType = sig[i];
745            JavaKind kind = javaType.getJavaKind();
746            Object arg = args[i];
747            if (kind == JavaKind.Object) {
748                if (arg != null && javaType instanceof ResolvedJavaType) {
749                    ResolvedJavaType resolvedJavaType = (ResolvedJavaType) javaType;
750                    Assert.assertTrue(resolvedJavaType + " from " + getMetaAccess().lookupJavaType(arg.getClass()), resolvedJavaType.isAssignableFrom(getMetaAccess().lookupJavaType(arg.getClass())));
751                }
752            } else {
753                Assert.assertNotNull(arg);
754                Assert.assertEquals(kind.toBoxedJavaClass(), arg.getClass());
755            }
756        }
757    }
758
759    /**
760     * Prepends a non-null receiver argument to a given list or args.
761     *
762     * @param receiver the receiver argument to prepend if it is non-null
763     */
764    protected Object[] argsWithReceiver(Object receiver, Object... args) {
765        Object[] executeArgs;
766        if (receiver == null) {
767            executeArgs = args;
768        } else {
769            executeArgs = new Object[args.length + 1];
770            executeArgs[0] = receiver;
771            for (int i = 0; i < args.length; i++) {
772                executeArgs[i + 1] = args[i];
773            }
774        }
775        return applyArgSuppliers(executeArgs);
776    }
777
778    protected final Result test(String name, Object... args) {
779        return test(getInitialOptions(), name, args);
780    }
781
782    protected final Result test(OptionValues options, String name, Object... args) {
783        try {
784            ResolvedJavaMethod method = getResolvedJavaMethod(name);
785            Object receiver = method.isStatic() ? null : this;
786            return test(options, method, receiver, args);
787        } catch (AssumptionViolatedException e) {
788            // Suppress so that subsequent calls to this method within the
789            // same Junit @Test annotated method can proceed.
790            return null;
791        }
792    }
793
794    /**
795     * Type denoting a lambda that supplies a fresh value each time it is called. This is useful
796     * when supplying an argument to {@link GraalCompilerTest#test(String, Object...)} where the
797     * test modifies the state of the argument (e.g., updates a field).
798     */
799    @FunctionalInterface
800    public interface ArgSupplier extends Supplier<Object> {
801    }
802
803    /**
804     * Convenience method for using an {@link ArgSupplier} lambda in a varargs list.
805     */
806    public static Object supply(ArgSupplier supplier) {
807        return supplier;
808    }
809
810    protected Result test(ResolvedJavaMethod method, Object receiver, Object... args) {
811        return test(getInitialOptions(), method, receiver, args);
812    }
813
814    protected Result test(OptionValues options, ResolvedJavaMethod method, Object receiver, Object... args) {
815        Result expect = executeExpected(method, receiver, args);
816        if (getCodeCache() != null) {
817            testAgainstExpected(options, method, expect, receiver, args);
818        }
819        return expect;
820    }
821
822    /**
823     * Process a given set of arguments, converting any {@link ArgSupplier} argument to the argument
824     * it supplies.
825     */
826    protected Object[] applyArgSuppliers(Object... args) {
827        Object[] res = args;
828        for (int i = 0; i < args.length; i++) {
829            if (args[i] instanceof ArgSupplier) {
830                if (res == args) {
831                    res = args.clone();
832                }
833                res[i] = ((ArgSupplier) args[i]).get();
834            }
835        }
836        return res;
837    }
838
839    protected final void testAgainstExpected(ResolvedJavaMethod method, Result expect, Object receiver, Object... args) {
840        testAgainstExpected(getInitialOptions(), method, expect, Collections.<DeoptimizationReason> emptySet(), receiver, args);
841    }
842
843    protected void testAgainstExpected(ResolvedJavaMethod method, Result expect, Set<DeoptimizationReason> shouldNotDeopt, Object receiver, Object... args) {
844        testAgainstExpected(getInitialOptions(), method, expect, shouldNotDeopt, receiver, args);
845    }
846
847    protected final void testAgainstExpected(OptionValues options, ResolvedJavaMethod method, Result expect, Object receiver, Object... args) {
848        testAgainstExpected(options, method, expect, Collections.<DeoptimizationReason> emptySet(), receiver, args);
849    }
850
851    protected void testAgainstExpected(OptionValues options, ResolvedJavaMethod method, Result expect, Set<DeoptimizationReason> shouldNotDeopt, Object receiver, Object... args) {
852        Result actual = executeActualCheckDeopt(options, method, shouldNotDeopt, receiver, args);
853        assertEquals(expect, actual);
854    }
855
856    protected Result executeActualCheckDeopt(OptionValues options, ResolvedJavaMethod method, Set<DeoptimizationReason> shouldNotDeopt, Object receiver, Object... args) {
857        Map<DeoptimizationReason, Integer> deoptCounts = new EnumMap<>(DeoptimizationReason.class);
858        ProfilingInfo profile = method.getProfilingInfo();
859        for (DeoptimizationReason reason : shouldNotDeopt) {
860            deoptCounts.put(reason, profile.getDeoptimizationCount(reason));
861        }
862        Result actual = executeActual(options, method, receiver, args);
863        profile = method.getProfilingInfo(); // profile can change after execution
864        for (DeoptimizationReason reason : shouldNotDeopt) {
865            Assert.assertEquals((int) deoptCounts.get(reason), profile.getDeoptimizationCount(reason));
866        }
867        return actual;
868    }
869
870    protected void assertEquals(Result expect, Result actual) {
871        if (expect.exception != null) {
872            Assert.assertTrue("expected " + expect.exception, actual.exception != null);
873            Assert.assertEquals("Exception class", expect.exception.getClass(), actual.exception.getClass());
874            Assert.assertEquals("Exception message", expect.exception.getMessage(), actual.exception.getMessage());
875        } else {
876            if (actual.exception != null) {
877                throw new AssertionError("expected " + expect.returnValue + " but got an exception", actual.exception);
878            }
879            assertDeepEquals(expect.returnValue, actual.returnValue);
880        }
881    }
882
883    private Map<ResolvedJavaMethod, InstalledCode> cache = new HashMap<>();
884
885    /**
886     * Gets installed code for a given method, compiling it first if necessary. The graph is parsed
887     * {@link #parseEager eagerly}.
888     */
889    protected final InstalledCode getCode(ResolvedJavaMethod method) {
890        return getCode(method, null, false, false, getInitialOptions());
891    }
892
893    protected final InstalledCode getCode(ResolvedJavaMethod method, OptionValues options) {
894        return getCode(method, null, false, false, options);
895    }
896
897    /**
898     * Gets installed code for a given method, compiling it first if necessary.
899     *
900     * @param installedCodeOwner the method the compiled code will be associated with when installed
901     * @param graph the graph to be compiled. If null, a graph will be obtained from
902     *            {@code installedCodeOwner} via {@link #parseForCompile(ResolvedJavaMethod)}.
903     */
904    protected final InstalledCode getCode(ResolvedJavaMethod installedCodeOwner, StructuredGraph graph) {
905        return getCode(installedCodeOwner, graph, false, false, graph == null ? getInitialOptions() : graph.getOptions());
906    }
907
908    /**
909     * Gets installed code for a given method and graph, compiling it first if necessary.
910     *
911     * @param installedCodeOwner the method the compiled code will be associated with when installed
912     * @param graph the graph to be compiled. If null, a graph will be obtained from
913     *            {@code installedCodeOwner} via {@link #parseForCompile(ResolvedJavaMethod)}.
914     * @param forceCompile specifies whether to ignore any previous code cached for the (method,
915     *            key) pair
916     */
917    protected final InstalledCode getCode(final ResolvedJavaMethod installedCodeOwner, StructuredGraph graph, boolean forceCompile) {
918        return getCode(installedCodeOwner, graph, forceCompile, false, graph == null ? getInitialOptions() : graph.getOptions());
919    }
920
921    /**
922     * Gets installed code for a given method and graph, compiling it first if necessary.
923     *
924     * @param installedCodeOwner the method the compiled code will be associated with when installed
925     * @param graph the graph to be compiled. If null, a graph will be obtained from
926     *            {@code installedCodeOwner} via {@link #parseForCompile(ResolvedJavaMethod)}.
927     * @param forceCompile specifies whether to ignore any previous code cached for the (method,
928     *            key) pair
929     * @param installAsDefault specifies whether to install as the default implementation
930     * @param options the options that will be used in {@link #parseForCompile(ResolvedJavaMethod)}
931     */
932    @SuppressWarnings("try")
933    protected InstalledCode getCode(final ResolvedJavaMethod installedCodeOwner, StructuredGraph graph, boolean forceCompile, boolean installAsDefault, OptionValues options) {
934        if (!forceCompile && graph == null) {
935            InstalledCode cached = cache.get(installedCodeOwner);
936            if (cached != null) {
937                if (cached.isValid()) {
938                    return cached;
939                }
940            }
941        }
942        // loop for retrying compilation
943        for (int retry = 0; retry <= BAILOUT_RETRY_LIMIT; retry++) {
944            final CompilationIdentifier id = getOrCreateCompilationId(installedCodeOwner, graph);
945
946            InstalledCode installedCode = null;
947            StructuredGraph graphToCompile = graph == null ? parseForCompile(installedCodeOwner, id, options) : graph;
948            DebugContext debug = graphToCompile.getDebug();
949
950            try (AllocSpy spy = AllocSpy.open(installedCodeOwner); DebugContext.Scope ds = debug.scope("Compiling", new DebugDumpScope(id.toString(CompilationIdentifier.Verbosity.ID), true))) {
951                CompilationPrinter printer = CompilationPrinter.begin(options, id, installedCodeOwner, INVOCATION_ENTRY_BCI);
952                CompilationResult compResult = compile(installedCodeOwner, graphToCompile, new CompilationResult(graphToCompile.compilationId()), id, options);
953                printer.finish(compResult);
954
955                try (DebugContext.Scope s = debug.scope("CodeInstall", getCodeCache(), installedCodeOwner, compResult);
956                                DebugContext.Activation a = debug.activate()) {
957                    try {
958                        if (installAsDefault) {
959                            installedCode = addDefaultMethod(debug, installedCodeOwner, compResult);
960                        } else {
961                            installedCode = addMethod(debug, installedCodeOwner, compResult);
962                        }
963                        if (installedCode == null) {
964                            throw new GraalError("Could not install code for " + installedCodeOwner.format("%H.%n(%p)"));
965                        }
966                    } catch (BailoutException e) {
967                        if (retry <= BAILOUT_RETRY_LIMIT && graph == null && !e.isPermanent()) {
968                            // retry (if there is no predefined graph)
969                            TTY.println(String.format("Restart compilation %s (%s) due to a non-permanent bailout!", installedCodeOwner, id));
970                            continue;
971                        }
972                        throw e;
973                    }
974                } catch (Throwable e) {
975                    throw debug.handle(e);
976                }
977            } catch (Throwable e) {
978                throw debug.handle(e);
979            }
980
981            if (!forceCompile) {
982                cache.put(installedCodeOwner, installedCode);
983            }
984            return installedCode;
985        }
986        throw GraalError.shouldNotReachHere();
987    }
988
989    /**
990     * Used to produce a graph for a method about to be compiled by
991     * {@link #compile(ResolvedJavaMethod, StructuredGraph)} if the second parameter to that method
992     * is null.
993     *
994     * The default implementation in {@link GraalCompilerTest} is to call {@link #parseEager}.
995     */
996    protected StructuredGraph parseForCompile(ResolvedJavaMethod method, OptionValues options) {
997        return parseEager(method, AllowAssumptions.YES, getCompilationId(method), options);
998    }
999
1000    protected final StructuredGraph parseForCompile(ResolvedJavaMethod method, DebugContext debug) {
1001        return parseEager(method, AllowAssumptions.YES, debug);
1002    }
1003
1004    protected final StructuredGraph parseForCompile(ResolvedJavaMethod method) {
1005        return parseEager(method, AllowAssumptions.YES, getCompilationId(method), getInitialOptions());
1006    }
1007
1008    protected StructuredGraph parseForCompile(ResolvedJavaMethod method, CompilationIdentifier compilationId, OptionValues options) {
1009        return parseEager(method, AllowAssumptions.YES, compilationId, options);
1010    }
1011
1012    /**
1013     * Compiles a given method.
1014     *
1015     * @param installedCodeOwner the method the compiled code will be associated with when installed
1016     * @param graph the graph to be compiled for {@code installedCodeOwner}. If null, a graph will
1017     *            be obtained from {@code installedCodeOwner} via
1018     *            {@link #parseForCompile(ResolvedJavaMethod)}.
1019     */
1020    protected final CompilationResult compile(ResolvedJavaMethod installedCodeOwner, StructuredGraph graph) {
1021        OptionValues options = graph == null ? getInitialOptions() : graph.getOptions();
1022        CompilationIdentifier compilationId = getOrCreateCompilationId(installedCodeOwner, graph);
1023        return compile(installedCodeOwner, graph, new CompilationResult(compilationId), compilationId, options);
1024    }
1025
1026    protected final CompilationResult compile(ResolvedJavaMethod installedCodeOwner, StructuredGraph graph, CompilationIdentifier compilationId) {
1027        OptionValues options = graph == null ? getInitialOptions() : graph.getOptions();
1028        return compile(installedCodeOwner, graph, new CompilationResult(compilationId), compilationId, options);
1029    }
1030
1031    protected final CompilationResult compile(ResolvedJavaMethod installedCodeOwner, StructuredGraph graph, OptionValues options) {
1032        assert graph == null || graph.getOptions() == options;
1033        CompilationIdentifier compilationId = getOrCreateCompilationId(installedCodeOwner, graph);
1034        return compile(installedCodeOwner, graph, new CompilationResult(compilationId), compilationId, options);
1035    }
1036
1037    /**
1038     * Compiles a given method.
1039     *
1040     * @param installedCodeOwner the method the compiled code will be associated with when installed
1041     * @param graph the graph to be compiled for {@code installedCodeOwner}. If null, a graph will
1042     *            be obtained from {@code installedCodeOwner} via
1043     *            {@link #parseForCompile(ResolvedJavaMethod)}.
1044     * @param compilationId
1045     */
1046    @SuppressWarnings("try")
1047    protected CompilationResult compile(ResolvedJavaMethod installedCodeOwner, StructuredGraph graph, CompilationResult compilationResult, CompilationIdentifier compilationId, OptionValues options) {
1048        StructuredGraph graphToCompile = graph == null ? parseForCompile(installedCodeOwner, compilationId, options) : graph;
1049        lastCompiledGraph = graphToCompile;
1050        DebugContext debug = graphToCompile.getDebug();
1051        try (DebugContext.Scope s = debug.scope("Compile", graphToCompile)) {
1052            assert options != null;
1053            Request<CompilationResult> request = new Request<>(graphToCompile, installedCodeOwner, getProviders(), getBackend(), getDefaultGraphBuilderSuite(), OptimisticOptimizations.ALL,
1054                            graphToCompile.getProfilingInfo(), createSuites(options), createLIRSuites(options), compilationResult, CompilationResultBuilderFactory.Default);
1055            return GraalCompiler.compile(request);
1056        } catch (Throwable e) {
1057            throw debug.handle(e);
1058        }
1059    }
1060
1061    protected StructuredGraph lastCompiledGraph;
1062
1063    protected SpeculationLog getSpeculationLog() {
1064        return null;
1065    }
1066
1067    protected InstalledCode addMethod(DebugContext debug, final ResolvedJavaMethod method, final CompilationResult compilationResult) {
1068        return backend.addInstalledCode(debug, method, null, compilationResult);
1069    }
1070
1071    protected InstalledCode addDefaultMethod(DebugContext debug, final ResolvedJavaMethod method, final CompilationResult compilationResult) {
1072        return backend.createDefaultInstalledCode(debug, method, compilationResult);
1073    }
1074
1075    private final Map<ResolvedJavaMethod, Executable> methodMap = new HashMap<>();
1076
1077    /**
1078     * Converts a reflection {@link Method} to a {@link ResolvedJavaMethod}.
1079     */
1080    protected ResolvedJavaMethod asResolvedJavaMethod(Executable method) {
1081        ResolvedJavaMethod javaMethod = getMetaAccess().lookupJavaMethod(method);
1082        methodMap.put(javaMethod, method);
1083        return javaMethod;
1084    }
1085
1086    protected ResolvedJavaMethod getResolvedJavaMethod(String methodName) {
1087        return asResolvedJavaMethod(getMethod(methodName));
1088    }
1089
1090    protected ResolvedJavaMethod getResolvedJavaMethod(Class<?> clazz, String methodName) {
1091        return asResolvedJavaMethod(getMethod(clazz, methodName));
1092    }
1093
1094    protected ResolvedJavaMethod getResolvedJavaMethod(Class<?> clazz, String methodName, Class<?>... parameterTypes) {
1095        return asResolvedJavaMethod(getMethod(clazz, methodName, parameterTypes));
1096    }
1097
1098    /**
1099     * Gets the reflection {@link Method} from which a given {@link ResolvedJavaMethod} was created
1100     * or null if {@code javaMethod} does not correspond to a reflection method.
1101     */
1102    protected Executable lookupMethod(ResolvedJavaMethod javaMethod) {
1103        return methodMap.get(javaMethod);
1104    }
1105
1106    protected Object invoke(ResolvedJavaMethod javaMethod, Object receiver, Object... args) throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, InstantiationException {
1107        Executable method = lookupMethod(javaMethod);
1108        Assert.assertTrue(method != null);
1109        if (!method.isAccessible()) {
1110            method.setAccessible(true);
1111        }
1112        if (method instanceof Method) {
1113            return ((Method) method).invoke(receiver, applyArgSuppliers(args));
1114        }
1115        assert receiver == null : "no receiver for constructor invokes";
1116        return ((Constructor<?>) method).newInstance(applyArgSuppliers(args));
1117    }
1118
1119    /**
1120     * Parses a Java method in {@linkplain GraphBuilderConfiguration#getDefault default} mode to
1121     * produce a graph.
1122     *
1123     * @param methodName the name of the method in {@code this.getClass()} to be parsed
1124     * @param allowAssumptions specifies if {@link Assumption}s can be made compiling the graph
1125     */
1126    protected final StructuredGraph parseProfiled(String methodName, AllowAssumptions allowAssumptions) {
1127        ResolvedJavaMethod method = getResolvedJavaMethod(methodName);
1128        return parse(builder(method, allowAssumptions), getDefaultGraphBuilderSuite());
1129    }
1130
1131    /**
1132     * Parses a Java method in {@linkplain GraphBuilderConfiguration#getDefault default} mode to
1133     * produce a graph.
1134     *
1135     * @param method the method to be parsed
1136     * @param allowAssumptions specifies if {@link Assumption}s can be made compiling the graph
1137     */
1138    protected final StructuredGraph parseProfiled(ResolvedJavaMethod method, AllowAssumptions allowAssumptions) {
1139        return parse(builder(method, allowAssumptions), getDefaultGraphBuilderSuite());
1140    }
1141
1142    /**
1143     * Parses a Java method with {@linkplain GraphBuilderConfiguration#withEagerResolving(boolean)}
1144     * set to true to produce a graph.
1145     *
1146     * @param methodName the name of the method in {@code this.getClass()} to be parsed
1147     * @param allowAssumptions specifies if {@link Assumption}s can be made compiling the graph
1148     */
1149    protected final StructuredGraph parseEager(String methodName, AllowAssumptions allowAssumptions) {
1150        ResolvedJavaMethod method = getResolvedJavaMethod(methodName);
1151        return parse(builder(method, allowAssumptions), getEagerGraphBuilderSuite());
1152    }
1153
1154    /**
1155     * Parses a Java method with {@linkplain GraphBuilderConfiguration#withEagerResolving(boolean)}
1156     * set to true to produce a graph.
1157     *
1158     * @param methodName the name of the method in {@code this.getClass()} to be parsed
1159     * @param allowAssumptions specifies if {@link Assumption}s can be made compiling the graph
1160     * @param options the option values to be used when compiling the graph
1161     */
1162    protected final StructuredGraph parseEager(String methodName, AllowAssumptions allowAssumptions, OptionValues options) {
1163        ResolvedJavaMethod method = getResolvedJavaMethod(methodName);
1164        return parse(builder(method, allowAssumptions, options), getEagerGraphBuilderSuite());
1165    }
1166
1167    protected final StructuredGraph parseEager(String methodName, AllowAssumptions allowAssumptions, DebugContext debug) {
1168        ResolvedJavaMethod method = getResolvedJavaMethod(methodName);
1169        return parse(builder(method, allowAssumptions, debug), getEagerGraphBuilderSuite());
1170    }
1171
1172    /**
1173     * Parses a Java method with {@linkplain GraphBuilderConfiguration#withEagerResolving(boolean)}
1174     * set to true to produce a graph.
1175     *
1176     * @param method the method to be parsed
1177     * @param allowAssumptions specifies if {@link Assumption}s can be made compiling the graph
1178     */
1179    protected final StructuredGraph parseEager(ResolvedJavaMethod method, AllowAssumptions allowAssumptions) {
1180        return parse(builder(method, allowAssumptions), getEagerGraphBuilderSuite());
1181    }
1182
1183    protected final StructuredGraph parseEager(ResolvedJavaMethod method, AllowAssumptions allowAssumptions, DebugContext debug) {
1184        return parse(builder(method, allowAssumptions, debug), getEagerGraphBuilderSuite());
1185    }
1186
1187    /**
1188     * Parses a Java method with {@linkplain GraphBuilderConfiguration#withEagerResolving(boolean)}
1189     * set to true to produce a graph.
1190     *
1191     * @param method the method to be parsed
1192     * @param allowAssumptions specifies if {@link Assumption}s can be made compiling the graph
1193     * @param options the option values to be used when compiling the graph
1194     */
1195    protected final StructuredGraph parseEager(ResolvedJavaMethod method, AllowAssumptions allowAssumptions, OptionValues options) {
1196        return parse(builder(method, allowAssumptions, options), getEagerGraphBuilderSuite());
1197    }
1198
1199    /**
1200     * Parses a Java method with {@linkplain GraphBuilderConfiguration#withEagerResolving(boolean)}
1201     * set to true to produce a graph.
1202     *
1203     * @param method the method to be parsed
1204     * @param allowAssumptions specifies if {@link Assumption}s can be made compiling the graph
1205     * @param compilationId the compilation identifier to be associated with the graph
1206     * @param options the option values to be used when compiling the graph
1207     */
1208    protected final StructuredGraph parseEager(ResolvedJavaMethod method, AllowAssumptions allowAssumptions, CompilationIdentifier compilationId, OptionValues options) {
1209        return parse(builder(method, allowAssumptions, compilationId, options), getEagerGraphBuilderSuite());
1210    }
1211
1212    protected final Builder builder(ResolvedJavaMethod method, AllowAssumptions allowAssumptions, DebugContext debug) {
1213        OptionValues options = debug.getOptions();
1214        return new Builder(options, debug, allowAssumptions).method(method).compilationId(getCompilationId(method));
1215    }
1216
1217    protected final Builder builder(ResolvedJavaMethod method, AllowAssumptions allowAssumptions) {
1218        OptionValues options = getInitialOptions();
1219        return new Builder(options, getDebugContext(options), allowAssumptions).method(method).compilationId(getCompilationId(method));
1220    }
1221
1222    protected final Builder builder(ResolvedJavaMethod method, AllowAssumptions allowAssumptions, CompilationIdentifier compilationId, OptionValues options) {
1223        return new Builder(options, getDebugContext(options), allowAssumptions).method(method).compilationId(compilationId);
1224    }
1225
1226    protected final Builder builder(ResolvedJavaMethod method, AllowAssumptions allowAssumptions, OptionValues options) {
1227        return new Builder(options, getDebugContext(options), allowAssumptions).method(method).compilationId(getCompilationId(method));
1228    }
1229
1230    protected PhaseSuite<HighTierContext> getDebugGraphBuilderSuite() {
1231        return getCustomGraphBuilderSuite(GraphBuilderConfiguration.getDefault(getDefaultGraphBuilderPlugins()).withFullInfopoints(true));
1232    }
1233
1234    @SuppressWarnings("try")
1235    protected StructuredGraph parse(StructuredGraph.Builder builder, PhaseSuite<HighTierContext> graphBuilderSuite) {
1236        ResolvedJavaMethod javaMethod = builder.getMethod();
1237        if (builder.getCancellable() == null) {
1238            builder.cancellable(getCancellable(javaMethod));
1239        }
1240        assert javaMethod.getAnnotation(Test.class) == null : "shouldn't parse method with @Test annotation: " + javaMethod;
1241        StructuredGraph graph = builder.build();
1242        DebugContext debug = graph.getDebug();
1243        try (DebugContext.Scope ds = debug.scope("Parsing", javaMethod, graph)) {
1244            graphBuilderSuite.apply(graph, getDefaultHighTierContext());
1245            return graph;
1246        } catch (Throwable e) {
1247            throw debug.handle(e);
1248        }
1249    }
1250
1251    protected PhaseSuite<HighTierContext> getEagerGraphBuilderSuite() {
1252        return getCustomGraphBuilderSuite(GraphBuilderConfiguration.getDefault(getDefaultGraphBuilderPlugins()).withEagerResolving(true));
1253    }
1254
1255    /**
1256     * Gets the cancellable that should be associated with a graph being created by any of the
1257     * {@code parse...()} methods.
1258     *
1259     * @param method the method being parsed into a graph
1260     */
1261    protected Cancellable getCancellable(ResolvedJavaMethod method) {
1262        return null;
1263    }
1264
1265    protected Plugins getDefaultGraphBuilderPlugins() {
1266        PhaseSuite<HighTierContext> suite = backend.getSuites().getDefaultGraphBuilderSuite();
1267        Plugins defaultPlugins = ((GraphBuilderPhase) suite.findPhase(GraphBuilderPhase.class).previous()).getGraphBuilderConfig().getPlugins();
1268        // defensive copying
1269        return new Plugins(defaultPlugins);
1270    }
1271
1272    protected PhaseSuite<HighTierContext> getDefaultGraphBuilderSuite() {
1273        // defensive copying
1274        return backend.getSuites().getDefaultGraphBuilderSuite().copy();
1275    }
1276
1277    /**
1278     * Registers extra invocation plugins for this test. The extra plugins are removed in the
1279     * {@link #afterTest()} method.
1280     *
1281     * Subclasses overriding this method should always call the same method on the super class in
1282     * case it wants to register plugins.
1283     *
1284     * @param invocationPlugins
1285     */
1286    protected void registerInvocationPlugins(InvocationPlugins invocationPlugins) {
1287        invocationPlugins.register(new InvocationPlugin() {
1288            @Override
1289            public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver) {
1290                b.add(new BreakpointNode());
1291                return true;
1292            }
1293        }, GraalCompilerTest.class, "breakpoint");
1294        invocationPlugins.register(new InvocationPlugin() {
1295            @Override
1296            public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver, ValueNode arg0) {
1297                b.add(new BreakpointNode(arg0));
1298                return true;
1299            }
1300        }, GraalCompilerTest.class, "breakpoint", int.class);
1301        invocationPlugins.register(new InvocationPlugin() {
1302            @Override
1303            public boolean apply(GraphBuilderContext b, ResolvedJavaMethod targetMethod, Receiver receiver) {
1304                b.add(new NotOptimizedNode());
1305                return true;
1306            }
1307        }, GraalCompilerTest.class, "shouldBeOptimizedAway");
1308    }
1309
1310    /**
1311     * The {@link #testN(int, String, Object...)} method means multiple threads trying to initialize
1312     * this field.
1313     */
1314    private volatile InvocationPlugins invocationPluginExtensions;
1315
1316    private InvocationPlugins extendedInvocationPlugins;
1317
1318    protected PhaseSuite<HighTierContext> getCustomGraphBuilderSuite(GraphBuilderConfiguration gbConf) {
1319        PhaseSuite<HighTierContext> suite = getDefaultGraphBuilderSuite();
1320        ListIterator<BasePhase<? super HighTierContext>> iterator = suite.findPhase(GraphBuilderPhase.class);
1321        initializeInvocationPluginExtensions();
1322        GraphBuilderConfiguration gbConfCopy = editGraphBuilderConfiguration(gbConf.copy());
1323        iterator.remove();
1324        iterator.add(new GraphBuilderPhase(gbConfCopy));
1325        return suite;
1326    }
1327
1328    private void initializeInvocationPluginExtensions() {
1329        if (invocationPluginExtensions == null) {
1330            synchronized (this) {
1331                if (invocationPluginExtensions == null) {
1332                    InvocationPlugins invocationPlugins = new InvocationPlugins();
1333                    registerInvocationPlugins(invocationPlugins);
1334                    extendedInvocationPlugins = getReplacements().getGraphBuilderPlugins().getInvocationPlugins();
1335                    extendedInvocationPlugins.addTestPlugins(invocationPlugins, null);
1336                    invocationPluginExtensions = invocationPlugins;
1337                }
1338            }
1339        }
1340    }
1341
1342    protected GraphBuilderConfiguration editGraphBuilderConfiguration(GraphBuilderConfiguration conf) {
1343        conf.getPlugins().prependInlineInvokePlugin(new InlineInvokePlugin() {
1344
1345            @Override
1346            public InlineInfo shouldInlineInvoke(GraphBuilderContext b, ResolvedJavaMethod method, ValueNode[] args) {
1347                BytecodeParserNeverInline neverInline = method.getAnnotation(BytecodeParserNeverInline.class);
1348                if (neverInline != null) {
1349                    return neverInline.invokeWithException() ? DO_NOT_INLINE_WITH_EXCEPTION : DO_NOT_INLINE_NO_EXCEPTION;
1350                }
1351                if (method.getAnnotation(BytecodeParserForceInline.class) != null) {
1352                    return InlineInfo.createStandardInlineInfo(method);
1353                }
1354                return bytecodeParserShouldInlineInvoke(b, method, args);
1355            }
1356        });
1357        return conf;
1358    }
1359
1360    /**
1361     * Supplements {@link BytecodeParserForceInline} and {@link BytecodeParserNeverInline} in terms
1362     * of allowing a test to influence the inlining decision made during bytecode parsing.
1363     *
1364     * @see InlineInvokePlugin#shouldInlineInvoke(GraphBuilderContext, ResolvedJavaMethod,
1365     *      ValueNode[])
1366     */
1367    @SuppressWarnings("unused")
1368    protected InlineInvokePlugin.InlineInfo bytecodeParserShouldInlineInvoke(GraphBuilderContext b, ResolvedJavaMethod method, ValueNode[] args) {
1369        return null;
1370    }
1371
1372    @NodeInfo
1373    public static class NotOptimizedNode extends FixedWithNextNode {
1374        private static final NodeClass<NotOptimizedNode> TYPE = NodeClass.create(NotOptimizedNode.class);
1375
1376        protected NotOptimizedNode() {
1377            super(TYPE, StampFactory.forVoid());
1378        }
1379
1380    }
1381
1382    protected Replacements getReplacements() {
1383        return getProviders().getReplacements();
1384    }
1385
1386    /**
1387     * Inject a probability for a branch condition into the profiling information of this test case.
1388     *
1389     * @param p the probability that cond is true
1390     * @param cond the condition of the branch
1391     * @return cond
1392     */
1393    protected static boolean branchProbability(double p, boolean cond) {
1394        return GraalDirectives.injectBranchProbability(p, cond);
1395    }
1396
1397    /**
1398     * Inject an iteration count for a loop condition into the profiling information of this test
1399     * case.
1400     *
1401     * @param i the iteration count of the loop
1402     * @param cond the condition of the loop
1403     * @return cond
1404     */
1405    protected static boolean iterationCount(double i, boolean cond) {
1406        return GraalDirectives.injectIterationCount(i, cond);
1407    }
1408
1409    /**
1410     * Test if the current test runs on the given platform. The name must match the name given in
1411     * the {@link Architecture#getName()}.
1412     *
1413     * @param name The name to test
1414     * @return true if we run on the architecture given by name
1415     */
1416    protected boolean isArchitecture(String name) {
1417        return name.equals(backend.getTarget().arch.getName());
1418    }
1419
1420    /**
1421     * This method should be called in "timeout" tests which JUnit runs in a different thread.
1422     */
1423    public static void initializeForTimeout() {
1424        // timeout tests run in a separate thread which needs the DebugEnvironment to be
1425        // initialized
1426        // DebugEnvironment.ensureInitialized(getInitialOptions());
1427    }
1428}
1429