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view graal/com.oracle.max.asmdis/src/com/sun/max/asm/gen/AssemblyTester.java @ 4213:e4cfa571d8c4
Do not emit stack-to-stack moves.
author | Christian Wimmer <Christian.Wimmer@Oracle.com> |
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date | Tue, 03 Jan 2012 18:47:27 -0800 |
parents | bc8527f3071c |
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/* * Copyright (c) 2007, 2011, 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 com.sun.max.asm.gen; import java.io.*; import java.util.*; import java.util.Arrays; import java.util.concurrent.*; import com.sun.max.*; import com.sun.max.asm.*; import com.sun.max.asm.dis.*; import com.sun.max.collect.*; import com.sun.max.io.*; import com.sun.max.io.Streams.*; import com.sun.max.lang.*; import com.sun.max.program.*; import com.sun.max.util.*; /** * A test framework for assemblers and disassemblers. * <p> * For a given instruction set, you can run the assembler and the corresponding external GNU assembler (gas) with the * same set of arguments and compare the two generated byte arrays for equality. This requires running on a platform on * which the respective GNU assembler is installed or configuring SSH to enable remote execution on a machine with the * respective GNU assembler installed (see {@link #setRemoteUserAndHost} for more details). * <p> * You can also run the assembler and then apply the disassembler to its result and see if you end up with the same * method and arguments that you assembled. * <p> * Both these tests can be combined in one pass. * <p> * A test run iterates over every template in the assembly, and for each of those: * <ol> * <li>locates the assembler method in the raw assembler that corresponds to the current template</li> * <li>generates a sequence of test argument lists based on the current template,</li> * <li>performs the above described checks for each test argument list, invoking the located raw assembler method with * it</li> * </ol> * <p> * A sequence of test argument lists is constructed by building the cross product of eligible argument values. The * eligible values of symbolic arguments comprise all values of the respective argument type. The eligible values of * numeric arguments better just be a subset of the whole range defined by their argument type... They are a handful of * values representing all important boundary cases. * <p> * As with the original tester in the Klein assembly framework, this framework also features "negative" tests, i.e. * calls with illegal arguments that should be caught and reported. The number of negative tests is far fewer than in * the Klein assembly framework as the use of static typing in this framework leaves far fewer opportunities to specify * illegal arguments without incurring a syntax or type error from javac. The majority of the remaining possibilities * for specifying illegal arguments lies in RISC assemblers' featuring immediate fields whose ranges of legal values is * not precisely described by a Java primitive type (e.g. int, short, char, etc). */ public abstract class AssemblyTester<Template_Type extends Template> { private final Assembly<Template_Type> assembly; private final WordWidth addressWidth; private final EnumSet<AssemblyTestComponent> components; protected AssemblyTester(Assembly<Template_Type> assembly, WordWidth addressWidth, EnumSet<AssemblyTestComponent> components) { this.assembly = assembly; this.addressWidth = addressWidth; this.components = components; this.tmpFilePrefix = System.getProperty("user.name") + "-" + assembly.isa().name().toLowerCase() + "-asmTest-"; } public Assembly<Template_Type> assembly() { return assembly; } public WordWidth addressWidth() { return addressWidth; } enum TestCaseLegality { LEGAL, ILLEGAL_BY_CONSTRAINT, ILLEGAL_BY_ARGUMENT } /** * This is an iterator over a (lazily generated) selection of test cases for a given template. * Using an iterator means that each test case is generated as needed and does not * use up memory longer than necessary. This helps prevent out of memory errors * for templates where the number of test cases can be very large. * * It is important to note that the value returned by {@link #next()} is only valid * until {@code next()} is called again. That is, the same {@code Sequence} * object is returned by each call to {@code next()}, only its contents have changed. * */ class ArgumentListIterator implements Iterator<List<Argument>> { private final Template_Type template; private final Parameter[] parameters; private final Iterator<? extends Argument>[] testArgumentIterators; private final int count; private final Argument[] arguments; private final List<Argument> next; private final TestCaseLegality testCaseLegality; private boolean hasNext; private boolean advanced; private int iterations; /** * Creates an iterator over a set of test cases for a given template. * * @param template * @param legalCases if true, only legal test cases are returned by this iterator otherwise only illegal test * cases are returned * @param legalArguments if {@code legalCases == true}, then this parameter is ignored. Otherwise, if true, then * all the arguments in a returned test case are {@link Parameter#getLegalTestArguments legal} * otherwise at least one argument in a returned test case will be * {@link Parameter#getIllegalTestArguments illegal} */ ArgumentListIterator(Template_Type template, TestCaseLegality testCaseLegality) { this.testCaseLegality = testCaseLegality; this.template = template; this.parameters = template.parameters().toArray(new Parameter[template.parameters().size()]); this.count = template.parameters().size(); this.arguments = new Argument[count]; this.next = Arrays.asList(arguments); final Class<Iterator<? extends Argument>[]> type = null; this.testArgumentIterators = Utils.cast(type, new Iterator[count]); this.hasNext = advance(); } /** * @return the number of times {@link #next} has been invoked on this iterator without throwing a NoSuchElementException. */ public int iterations() { return iterations; } public boolean hasNext() { if (count == 0) { return testCaseLegality == TestCaseLegality.LEGAL ? (iterations == 0) : false; } if (!advanced) { hasNext = advance(); } return hasNext; } /** * The returned sequence is only valid for a single iteration and so should be copied * if needed after this iteration. */ public List<Argument> next() { if (!hasNext()) { throw new NoSuchElementException(); } advanced = false; ++iterations; return next; } /** * Advances this iterator to the next argument list. * * @return true if the iterator could advance */ private boolean advance() { assert !advanced; advanced = true; if (count == 0) { return testCaseLegality == TestCaseLegality.LEGAL; } boolean result; do { result = advance0(); } while (result && isLegalArgumentList(template, next) != (testCaseLegality == TestCaseLegality.LEGAL)); return result; } /** * Advances the test argument iterator for parameter {@code i}. * * @return true if the iterator could advance */ private boolean advanceArgumentFor(int i) { if (testArgumentIterators[i].hasNext()) { arguments[i] = testArgumentIterators[i].next(); return true; } return false; } /** * Advances this iterator to the next (potentially invalid) argument list. * * @return true if the iterator could advance */ private boolean advance0() { for (int i = count - 1; i >= 0; --i) { if (testArgumentIterators[i] != null) { if (advanceArgumentFor(i)) { return true; } if (i == 0) { return false; } } // Reset iterator over test arguments of the i'th parameter final Parameter parameter = parameters[i]; if (testCaseLegality != TestCaseLegality.ILLEGAL_BY_ARGUMENT) { final Iterable<? extends Argument> argumentsIterable = parameter.getLegalTestArguments(); final ArgumentRange argumentRange = parameter.argumentRange(); if (argumentRange == null || !argumentRange.appliesInternally()) { testArgumentIterators[i] = argumentsIterable.iterator(); } else { testArgumentIterators[i] = new FilterIterator<>(argumentsIterable.iterator(), new Predicate<Argument>() { public boolean evaluate(Argument argument) { return argumentRange.includes(argument); } }); } } else { Iterator<? extends Argument> iterator = parameter.getIllegalTestArguments().iterator(); if (!iterator.hasNext()) { // For parameters that have no illegal values (e.g. a symbolic register parameter) // at least one argument must be returned otherwise illegal test cases where only // one argument is illegal will never be returned by this iterator. // // Instead of iterating over all the legal arguments for such a parameter, only // the last legal value is used. This involves retrieving the iterator twice but // that's much cheaper than many more redundant iterations. iterator = parameter.getLegalTestArguments().iterator(); int n = 0; while (iterator.hasNext()) { ++n; iterator.next(); } iterator = parameter.getLegalTestArguments().iterator(); while (n-- > 1) { iterator.next(); } assert iterator.hasNext(); testArgumentIterators[i] = iterator; } else { testArgumentIterators[i] = iterator; } } if (!advanceArgumentFor(i)) { return false; } } return true; } public void remove() { throw new UnsupportedOperationException(); } } /** * Determines if a given set of arguments for a given template is legal. */ protected abstract boolean isLegalArgumentList(Template_Type template, List<Argument> arguments); protected abstract void assembleExternally(IndentWriter stream, Template_Type template, List<Argument> argumentList, String label); private final String tmpFilePrefix; private static final String SOURCE_EXTENSION = ".s"; private static final String BINARY_EXTENSION = ".o"; private static boolean findExcludedDisassemblerTestArgument(List<? extends Parameter> parameters, List<Argument> arguments) { for (int i = 0; i < parameters.size(); i++) { if (parameters.get(i).excludedDisassemblerTestArguments().contains(arguments.get(i))) { return true; } } return false; } private static boolean findExcludedExternalTestArgument(List<? extends Parameter> parameters, List<Argument> arguments) { for (int i = 0; i < parameters.size(); i++) { final Parameter parameter = parameters.get(i); if (parameter.excludedExternalTestArguments().contains(arguments.get(i))) { return true; } final ArgumentRange argumentRange = parameters.get(i).argumentRange(); if (argumentRange != null && !argumentRange.includes(arguments.get(i))) { return true; } } return false; } protected final int nNOPs = 10; private File createExternalSourceFile(Template_Type template, Iterator<List<Argument>> argumentLists) throws IOException { final File sourceFile = File.createTempFile(tmpFilePrefix + template.internalName(), SOURCE_EXTENSION); final IndentWriter stream = new IndentWriter(new PrintWriter(new BufferedWriter(new FileWriter(sourceFile)))); stream.indent(); for (int i = 0; i < nNOPs; i++) { stream.println("nop"); } createExternalSource(template, argumentLists, stream); for (int i = 0; i < nNOPs; i++) { stream.println("nop"); } stream.outdent(); stream.close(); return sourceFile; } private void createExternalSource(Template_Type template, Iterator<List<Argument>> argumentLists, IndentWriter stream) { int i = 0; while (argumentLists.hasNext()) { final List<Argument> argumentList = argumentLists.next(); if (!findExcludedExternalTestArgument(template.parameters(), argumentList)) { final String label = "label" + i; assembleExternally(stream, template, argumentList, label); } ++i; } } protected abstract String assemblerCommand(); private String remoteAssemblerPath = ""; /** * Sets the path of the directory on a remote machine containing the * {@link #assemblerCommand assembler command}. This is required as * some SSH installations only provide a very minimal environment * for remotely executed commands. * * @param path the absolute path to the directory containing the assembler executable (must not be null) */ public void setRemoteAssemblerPath(String path) { assert path != null; remoteAssemblerPath = path; } private String remoteUserAndHost; /** * Sets the {@code user@host} string that will be used to execute the external * assembler on a remote host via SSH. If this value is not set or set to null, the * external assembler will be executed on the local machine. * <p> * Execution on a remote machine is performed via the use of the 'ssh' and 'scp' * native executables. As such, these executables must be on the user's path. * <p> * The SSH layer authenticates with the remote machine via public key authentication. * Configuring the local and remote machines for this authentication is described in * the ssh man page. * <p> * Here's the console output * captured while configuring user {@code dsimon} on machine {@code local} * to be able to remotely execute via SSH as user {@code dsimon} on machine * {@code remote}: * <p> * <pre> * [dsimon@local:~]$ <b>ssh-keygen -t dsa</b> * Generating public/private dsa key pair. * Enter file in which to save the key (/home/dsimon/.ssh/id_dsa): * Enter passphrase (empty for no passphrase): * Enter same passphrase again: * Your identification has been saved in /home/dsimon/.ssh/id_dsa. * Your public key has been saved in /home/dsimon/.ssh/id_dsa.pub. * The key fingerprint is: * 88:ec:17:53:7a:e1:35:bd:cf:cc:0a:bb:dd:ec:99:8d dsimon@local * [dsimon@local:~]$ <b>scp /home/dsimon/.ssh/id_dsa.pub dsimon@remote:</b> * Password: * id_dsa.pub 100% 617 0.6KB/s 00:00 * [dsimon@local:~]$ ssh dsimon@remote * Password: * [dsimon@remote:~]$ <b>{@literal cat id_dsa.pub >> .ssh/authorized_keys2}</b> * </pre> * * @param remoteUserAndHost a {@code user@host} value denoting a machine that * supports remote execution via SSH2 using public key authentication */ public void setRemoteUserAndHost(String remoteUserAndHost) { this.remoteUserAndHost = remoteUserAndHost; } /** * Executes a command in a subprocess redirecting the standard streams of the * subprocess to/from the standard streams of the current process. * * @param command the command line to execute */ private static void exec(String command) throws IOException, InterruptedException { exec(command, System.out, System.err, System.in); } /** * Executes a command in a subprocess redirecting the standard streams of the * subprocess to/from the supplied streams. * * @param command the command line to execute * @param out the stream to which standard output will be directed * @param err the stream to which standard error output will be directed * @param in the stream from which standard input will be read */ private static void exec(String command, OutputStream out, OutputStream err, InputStream in) throws IOException, InterruptedException { final Process process = Runtime.getRuntime().exec(command); try { final Redirector stderr = Streams.redirect(process, process.getErrorStream(), err, command + " [stderr]", 50); final Redirector stdout = Streams.redirect(process, process.getInputStream(), out, command + " [stdout]"); final Redirector stdin = Streams.redirect(process, in, process.getOutputStream(), command + " [stdin]"); final int exitValue = process.waitFor(); stderr.close(); stdout.close(); stdin.close(); if (exitValue != 0) { throw ProgramError.unexpected("execution of command failed: " + command + " [exit code = " + exitValue + "]"); } } finally { process.destroy(); } } private File createExternalBinaryFile(File sourceFile) throws IOException { try { final File binaryFile = new File(sourceFile.getPath().substring(0, sourceFile.getPath().length() - SOURCE_EXTENSION.length()) + BINARY_EXTENSION); if (remoteUserAndHost != null) { // Copy input source to remote machine exec("scp -C " + sourceFile.getAbsolutePath() + " " + remoteUserAndHost + ":" + sourceFile.getName()); // Execute assembler remotely exec("ssh " + remoteUserAndHost + " " + remoteAssemblerPath + assemblerCommand() + " -o " + binaryFile.getName() + " " + sourceFile.getName()); // Copy output binary to local machine exec("scp -C " + remoteUserAndHost + ":" + binaryFile.getName() + " " + binaryFile.getAbsolutePath()); // Delete input source and output binary from remote machine exec("ssh " + remoteUserAndHost + " rm " + binaryFile.getName() + " " + sourceFile.getName()); } else { exec(assemblerCommand() + " " + sourceFile.getAbsolutePath() + " -o " + binaryFile.getAbsolutePath()); } return binaryFile; } catch (InterruptedException e) { throw new InterruptedIOException(e.toString()); } } protected abstract boolean readNop(InputStream stream) throws IOException; private boolean findStart(InputStream stream) throws IOException { while (stream.available() > 0) { if (readNop(stream)) { boolean found = true; for (int i = 1; i < nNOPs; i++) { if (!readNop(stream)) { found = false; break; } } if (found) { return true; } } } return false; } /** * Gets a string representation of the value and bitrange of each field in an assembled instruction. * For example, the returned value for an assembled Power PC {@code rldimi} instruction may be * {@code "opcd[0:5]=31{011111} fxm[12:19]=1{00000001} rs[6:10]=1{00001} bit_11[11:11]=-1{1} res_20[20:20]=0{0} xo_21_30[21:30]=144{0010010000} res_31[31:31]=0{0}"}. */ protected abstract String disassembleFields(Template_Type template, byte[] assembledInstruction); protected abstract byte[] readExternalInstruction(PushbackInputStream stream, Template_Type template, byte[] internalBytes) throws IOException; protected abstract Assembler createTestAssembler(); protected abstract Disassembler createTestDisassembler(); /** * We use this more complicated comparison instead of 'Sequence.equals()', * because some arguments with different identity may have equal values, * e.g. 'FPStackRegister.ST.value() == FPStackRegister.ST_0.value()'. * It would have been much more clean to override 'equals()' of those argument classes, * but they are enums and Java predeclares methods inherited via Enum final :-( */ private static boolean equals(List<Argument> arguments1, List<Argument> arguments2) { if (arguments1.size() != arguments2.size()) { return false; } for (int i = 0; i < arguments1.size(); i++) { final Argument argument1 = arguments1.get(i); final Argument argument2 = arguments2.get(i); if (!argument1.equals(argument2)) { if (!Classes.areRelated(argument1.getClass(), argument2.getClass()) || argument1.asLong() != argument2.asLong()) { return false; } } } return true; } private void createExternalSource(Template_Type template, IndentWriter stream) { if (template.isExternallyTestable()) { final ArgumentListIterator argumentLists = new ArgumentListIterator(template, TestCaseLegality.LEGAL); createExternalSource(template, argumentLists, stream); Trace.line(2, "template: " + template + " [" + argumentLists.iterations() + " test cases]"); } } private void testDisassembler(Template_Type template, List<Argument> argumentList, byte[] internalResult) throws IOException, AssemblyException { final BufferedInputStream disassemblyStream = new BufferedInputStream(new ByteArrayInputStream(internalResult)); final Disassembler disassembler = createTestDisassembler(); disassembler.setAbstractionPreference(template.instructionDescription().isSynthetic() ? Disassembler.AbstractionPreference.SYNTHETIC : Disassembler.AbstractionPreference.RAW); disassembler.setExpectedNumberOfArguments(argumentList.size()); final List<DisassembledObject> disassembledObjects = disassembler.scanOne(disassemblyStream); boolean matchFound = false; for (DisassembledObject disassembledObject : disassembledObjects) { if (disassembledObject instanceof DisassembledInstruction) { final DisassembledInstruction disassembledInstruction = (DisassembledInstruction) disassembledObject; matchFound = matchFound || (disassembledInstruction.template().isEquivalentTo(template) && equals(disassembledInstruction.arguments(), argumentList) && Arrays.equals(disassembledInstruction.bytes(), internalResult)); } } final int available = disassemblyStream.available(); if (available != 0 || !matchFound) { System.err.println("internal disassembler test failed - " + disassembledObjects.size() + " false matches found: "); //final Assembler assembler = createTestAssembler(); //assembly().assemble(assembler, template, argumentList); //disassemblyStream.reset(); //disassembler.scanOne(disassemblyStream); if (available != 0) { System.err.print("extra bytes at end of disassembly stream:"); final int bytesToPrint = Math.min(available, 200); for (int i = 0; i < bytesToPrint; ++i) { final int b = disassemblyStream.read(); System.err.print(" 0x" + Integer.toHexString(b)); } if (bytesToPrint < available) { System.err.print("... [" + (available - bytesToPrint) + " more]"); } System.err.println(); } int matchNumber = 1; for (DisassembledObject disassembledObject : disassembledObjects) { if (disassembledObject instanceof DisassembledInstruction) { final DisassembledInstruction disassembledInstruction = (DisassembledInstruction) disassembledObject; System.err.println(); System.err.println("False match number " + matchNumber + ":"); System.err.println(" assembled template: " + template); System.err.println(" disassembled template: " + disassembledInstruction.template()); System.err.println(" assembled arguments: " + argumentList); System.err.println("disassembled arguments: " + disassembledInstruction.arguments()); System.err.println(" assembled bytes: " + DisassembledInstruction.toHexString(internalResult)); System.err.println(" disassembled bytes: " + DisassembledInstruction.toHexString(disassembledInstruction.bytes())); ++matchNumber; } } throw ProgramError.unexpected("mismatch between internal assembler and disassembler"); } disassemblyStream.close(); } private void testTemplate(final Template_Type template, List<File> temporaryFiles) throws IOException, AssemblyException { final boolean testingExternally = components.contains(AssemblyTestComponent.EXTERNAL_ASSEMBLER) && template.isExternallyTestable(); // Process legal test cases final ArgumentListIterator argumentLists = new ArgumentListIterator(template, TestCaseLegality.LEGAL); ProgramError.check(argumentLists.hasNext(), "no test cases were generated for template: " + template); final File binaryFile; final PushbackInputStream externalInputStream; if (testingExternally) { final File sourceFile = createExternalSourceFile(template, argumentLists); temporaryFiles.add(sourceFile); binaryFile = createExternalBinaryFile(sourceFile); temporaryFiles.add(binaryFile); externalInputStream = new PushbackInputStream(new BufferedInputStream(new FileInputStream(binaryFile))); if (!findStart(externalInputStream)) { throw ProgramError.unexpected("could not find start sequence in: " + binaryFile.getAbsolutePath()); } } else { binaryFile = null; externalInputStream = null; } int testCaseNumber = 0; for (final ArgumentListIterator iterator = new ArgumentListIterator(template, TestCaseLegality.LEGAL); iterator.hasNext();) { final List<Argument> argumentList = iterator.next(); final Assembler assembler = createTestAssembler(); assembly().assemble(assembler, template, argumentList); final byte[] internalResult = assembler.toByteArray(); if (Trace.hasLevel(3)) { Trace.line(3, "assembleInternally[" + testCaseNumber + "]: " + Assembly.createMethodCallString(template, argumentList) + " = " + DisassembledInstruction.toHexString(internalResult)); } if (components.contains(AssemblyTestComponent.DISASSEMBLER) && template.isDisassemblable() && !findExcludedDisassemblerTestArgument(template.parameters(), argumentList)) { try { testDisassembler(template, argumentList, internalResult); } catch (IOException e) { throw new AssemblyException(e.toString()); } } if (testingExternally && !findExcludedExternalTestArgument(template.parameters(), argumentList)) { final byte[] externalResult = readExternalInstruction(externalInputStream, template, internalResult); for (int i = 0; i < externalResult.length; i++) { if (internalResult[i] != externalResult[i]) { System.err.println("external assembler test case " + testCaseNumber + " failed for template: " + template); System.err.println("arguments: " + argumentList); System.err.println("internal result: " + DisassembledInstruction.toHexString(internalResult)); System.err.println("external result: " + DisassembledInstruction.toHexString(externalResult)); System.err.println("internal result fields: " + disassembleFields(template, internalResult)); System.err.println("external result fields: " + disassembleFields(template, externalResult)); ProgramError.unexpected("mismatch between internal and external assembler"); } } } ++testCaseNumber; } // Process illegal test cases int illegalTestCaseNumber = 0; final Set<String> uniqueExceptionMessages = new HashSet<>(); for (TestCaseLegality testCaseLegality : new TestCaseLegality[]{TestCaseLegality.ILLEGAL_BY_CONSTRAINT, TestCaseLegality.ILLEGAL_BY_ARGUMENT}) { for (final ArgumentListIterator iterator = new ArgumentListIterator(template, testCaseLegality); iterator.hasNext();) { final List<Argument> argumentList = iterator.next(); final Assembler assembler = createTestAssembler(); Trace.line(3, "assembleInternally-negative[" + illegalTestCaseNumber + "]: " + Assembly.createMethodCallString(template, argumentList)); try { assembly().assemble(assembler, template, argumentList); } catch (IllegalArgumentException e) { final String exceptionMessage = e.getMessage(); uniqueExceptionMessages.add(exceptionMessage); ++illegalTestCaseNumber; continue; } System.err.println("illegal assembler test case " + illegalTestCaseNumber + " did not throw an exception for template: " + template); System.err.println("arguments: " + argumentList); ProgramError.unexpected("failed illegal test case"); } } Trace.line(2, "template: " + template + " [" + testCaseNumber + " test cases, timings: " + ", " + illegalTestCaseNumber + " illegal test cases]"); for (String message : uniqueExceptionMessages) { Trace.line(2, " caught expected IllegalArgumentException: " + message); } if (testingExternally) { for (int i = 0; i < nNOPs; i++) { if (!readNop(externalInputStream)) { ProgramError.unexpected("end pattern missing in: " + binaryFile.getAbsolutePath()); } } externalInputStream.close(); } } private String templatePattern; /** * Sets the pattern that restricts which templates are tested. * * @param pattern if non-null, only templates whose {@link Template#internalName() name} contains {@code pattern} as * a substring are tested */ public void setTemplatePattern(String pattern) { templatePattern = pattern; } /** * Tests a range of templates. * * @param startTemplateSerial the {@linkplain Template#serial() serial} number of the first template to test or -1 * to start with the first template of the {@linkplain #assembly() assembly}. * @param endTemplateSerial the {@linkplain Template#serial() serial} number of the last template to test or -1 to * end with the last template of the {@linkplain #assembly() assembly}. * @param parallelize specifies if the testing should be parallelized */ public void run(int startTemplateSerial, int endTemplateSerial, boolean parallelize) { if (components.contains(AssemblyTestComponent.EXTERNAL_ASSEMBLER)) { try { Runtime.getRuntime().exec(assemblerCommand()); } catch (IOException ioException) { throw ProgramError.unexpected("Could not execute external assembler command '" + assemblerCommand() + "'", ioException); } } final int numberOfWorkerThreads; if (remoteUserAndHost != null) { // Don't go parallel when using ssh as the max number of ssh connections on the remote host will most likely be a problem numberOfWorkerThreads = 1; } else { numberOfWorkerThreads = Runtime.getRuntime().availableProcessors(); } final ThreadPoolExecutor compilerService = (ThreadPoolExecutor) Executors.newFixedThreadPool(numberOfWorkerThreads); final CompletionService<Template_Type> compilationCompletionService = new ExecutorCompletionService<>(compilerService); long submittedTests = 0; final List<Template_Type> errors = new LinkedList<>(); for (final Template_Type template : assembly().templates()) { if (template.serial() > endTemplateSerial) { break; } Trace.on(2); if (!template.isRedundant() && template.serial() >= startTemplateSerial) { if (templatePattern == null || template.internalName().contains(templatePattern)) { ++submittedTests; compilationCompletionService.submit(new Callable<Template_Type>() { public Template_Type call() { final List<File> temporaryFiles = new ArrayList<>(); try { testTemplate(template, temporaryFiles); } catch (Throwable throwable) { Trace.line(2, "template: " + template + " failed testing"); throwable.printStackTrace(); synchronized (errors) { errors.add(template); } } finally { for (File temporaryFile : temporaryFiles) { if (!temporaryFile.delete()) { ProgramWarning.message("could not delete temporary file: " + temporaryFile.getAbsolutePath()); } } } return template; } }); } } } long completedTests = 0; while (completedTests < submittedTests) { try { final Template_Type template = compilationCompletionService.take().get(); if (numberOfWorkerThreads > 1) { Trace.line(1, "complete: " + template); } } catch (InterruptedException e) { e.printStackTrace(); } catch (ExecutionException executionException) { throw ProgramError.unexpected(executionException.getCause()); } ++completedTests; } compilerService.shutdown(); if (!errors.isEmpty()) { System.err.println("Errors occurred when testing the following templates:"); for (Template_Type template : errors) { System.err.println(" " + template); } throw ProgramError.unexpected(errors.size() + " templates failed testing: see previous stack dumps in test output"); } } /** * Creates external assembler source for testing a range of templates. * * @param startTemplateSerial * the {@linkplain Template#serial() serial} number of the first template to test or -1 to start with the * first template of the {@linkplain #assembly() assembly}. * @param endTemplateSerial * the {@linkplain Template#serial() serial} number of the last template to test or -1 to end with the * last template of the {@linkplain #assembly() assembly}. * @param stream * where to print the generate source. The caller takes responsibility for closing the stream. */ public void createExternalSource(int startTemplateSerial, int endTemplateSerial, IndentWriter stream) { final List<Template_Type> errors = new LinkedList<>(); for (Template_Type template : assembly().templates()) { if (template.serial() > endTemplateSerial) { break; } Trace.on(2); if (!template.isRedundant() && template.serial() >= startTemplateSerial) { if (templatePattern == null || template.internalName().contains(templatePattern)) { createExternalSource(template, stream); } } } if (!errors.isEmpty()) { System.err.println("Errors occurred when creating external assembler test cases for the following templates:"); for (Template_Type template : errors) { System.err.println(" " + template); } throw ProgramError.unexpected(errors.size() + " templates failed testing: see previous stack dumps in test output"); } } }