1 /*
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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  *
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22  */
23 
24 
25 
26 package jdk.tools.jaotc;
27 
28 import java.util.ArrayList;
29 import java.util.List;
30 import java.util.concurrent.PriorityBlockingQueue;
31 import java.util.concurrent.RejectedExecutionException;
32 import java.util.concurrent.ThreadPoolExecutor;
33 import java.util.concurrent.TimeUnit;
34 import java.util.concurrent.atomic.AtomicInteger;
35 
36 import org.graalvm.compiler.options.OptionValues;
37 
38 import jdk.vm.ci.meta.ResolvedJavaMethod;
39 
40 final class AOTCompiler {
41 
42     private final Main main;
43 
44     private final OptionValues graalOptions;
45 
46     private CompileQueue compileQueue;
47 
48     private final AOTBackend backend;
49 
50     /**
51      * Compile queue.
52      */
53     private class CompileQueue extends ThreadPoolExecutor {
54 
55         /**
56          * Time of the start of this queue.
57          */
58         private final long startTime;
59 
60         /**
61          * Method counter for successful compilations.
62          */
63         private final AtomicInteger successfulMethodCount = new AtomicInteger();
64 
65         /**
66          * Method counter for failed compilations.
67          */
68         private final AtomicInteger failedMethodCount = new AtomicInteger();
69 
70         /**
71          * Create a compile queue with the given number of threads.
72          */
CompileQueue(final int threads)73         CompileQueue(final int threads) {
74             super(threads, threads, 0L, TimeUnit.MILLISECONDS, new PriorityBlockingQueue<>());
75             startTime = System.currentTimeMillis();
76         }
77 
78         @Override
afterExecute(Runnable r, Throwable t)79         protected void afterExecute(Runnable r, Throwable t) {
80             AOTCompilationTask task = (AOTCompilationTask) r;
81             if (task.getResult() != null) {
82                 final int count = successfulMethodCount.incrementAndGet();
83                 if (count % 100 == 0) {
84                     main.printer.printInfo(".");
85                 }
86                 CompiledMethodInfo result = task.getResult();
87                 if (result != null) {
88                     task.getHolder().addCompiledMethod(result);
89                 }
90             } else {
91                 failedMethodCount.incrementAndGet();
92                 main.printer.printlnVerbose("");
93                 ResolvedJavaMethod method = task.getMethod();
94                 main.printer.printlnVerbose(" failed " + method.getName() + method.getSignature().toMethodDescriptor());
95             }
96         }
97 
98         @Override
terminated()99         protected void terminated() {
100             final long endTime = System.currentTimeMillis();
101             final int success = successfulMethodCount.get();
102             final int failed = failedMethodCount.get();
103             main.printer.printlnInfo("");
104             main.printer.printlnInfo(success + " methods compiled, " + failed + " methods failed (" + (endTime - startTime) + " ms)");
105         }
106 
107     }
108 
109     /**
110      * @param main
111      * @param graalOptions
112      * @param aotBackend
113      * @param threads number of compilation threads
114      */
AOTCompiler(Main main, OptionValues graalOptions, AOTBackend aotBackend, final int threads)115     AOTCompiler(Main main, OptionValues graalOptions, AOTBackend aotBackend, final int threads) {
116         this.main = main;
117         this.graalOptions = graalOptions;
118         this.compileQueue = new CompileQueue(threads);
119         this.backend = aotBackend;
120     }
121 
122     /**
123      * Compile all methods in all classes passed.
124      *
125      * @param classes a list of class to compile
126      * @throws InterruptedException
127      */
compileClasses(List<AOTCompiledClass> classes)128     List<AOTCompiledClass> compileClasses(List<AOTCompiledClass> classes) throws InterruptedException {
129         main.printer.printlnInfo("Compiling with " + compileQueue.getCorePoolSize() + " threads");
130         main.printer.printInfo("."); // Compilation progress indication.
131 
132         for (AOTCompiledClass c : classes) {
133             for (ResolvedJavaMethod m : c.getMethods()) {
134                 enqueueMethod(c, m);
135             }
136         }
137 
138         // Shutdown queue and wait for all tasks to complete.
139         compileQueue.shutdown();
140         compileQueue.awaitTermination(Long.MAX_VALUE, TimeUnit.NANOSECONDS);
141 
142         List<AOTCompiledClass> compiledClasses = new ArrayList<>();
143         for (AOTCompiledClass compiledClass : classes) {
144             if (compiledClass.hasCompiledMethods()) {
145                 compiledClasses.add(compiledClass);
146             }
147         }
148         return compiledClasses;
149     }
150 
151     /**
152      * Enqueue a method in the {@link #compileQueue}.
153      *
154      * @param method method to be enqueued
155      */
enqueueMethod(AOTCompiledClass aotClass, ResolvedJavaMethod method)156     private void enqueueMethod(AOTCompiledClass aotClass, ResolvedJavaMethod method) {
157         AOTCompilationTask task = new AOTCompilationTask(main, graalOptions, aotClass, method, backend);
158         try {
159             compileQueue.execute(task);
160         } catch (RejectedExecutionException e) {
161             e.printStackTrace();
162         }
163     }
164 
logCompilation(String methodName, String message)165     static void logCompilation(String methodName, String message) {
166         LogPrinter.writeLog(message + " " + methodName);
167     }
168 
169 }
170