| /* |
| * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package compiler.intrinsics.bmi.verifycode; |
| |
| import compiler.whitebox.CompilerWhiteBoxTest; |
| import jdk.test.lib.Asserts; |
| import jdk.test.lib.Platform; |
| import jdk.test.lib.Utils; |
| import sun.hotspot.code.NMethod; |
| import sun.hotspot.cpuinfo.CPUInfo; |
| |
| import java.lang.invoke.MethodHandle; |
| import java.lang.invoke.MethodType; |
| import java.lang.reflect.Executable; |
| import java.lang.reflect.Method; |
| import java.util.concurrent.Callable; |
| import java.util.function.Function; |
| |
| public class BmiIntrinsicBase extends CompilerWhiteBoxTest { |
| |
| protected BmiIntrinsicBase(BmiTestCase testCase) { |
| super(testCase); |
| } |
| |
| public static void verifyTestCase(Function<Method, BmiTestCase> constructor, Method... methods) throws Exception { |
| for (Method method : methods) { |
| new BmiIntrinsicBase(constructor.apply(method)).test(); |
| } |
| } |
| |
| @Override |
| protected void test() throws Exception { |
| BmiTestCase bmiTestCase = (BmiTestCase) testCase; |
| |
| if (!(Platform.isX86() || Platform.isX64())) { |
| System.out.println("Unsupported platform, test SKIPPED"); |
| return; |
| } |
| |
| if (!Platform.isServer()) { |
| throw new Error("TESTBUG: Not server VM"); |
| } |
| |
| if (Platform.isInt()) { |
| throw new Error("TESTBUG: test can not be run in interpreter"); |
| } |
| |
| if (!CPUInfo.hasFeature(bmiTestCase.getCpuFlag())) { |
| System.out.println("Unsupported hardware, no required CPU flag " + bmiTestCase.getCpuFlag() + " , test SKIPPED"); |
| return; |
| } |
| |
| if (!Boolean.valueOf(getVMOption(bmiTestCase.getVMFlag()))) { |
| System.out.println("VM flag " + bmiTestCase.getVMFlag() + " disabled, test SKIPPED"); |
| return; |
| } |
| |
| System.out.println(testCase.name()); |
| |
| if (TIERED_COMPILATION && TIERED_STOP_AT_LEVEL != CompilerWhiteBoxTest.COMP_LEVEL_MAX || Platform.isEmulatedClient()) { |
| System.out.println("TieredStopAtLevel value (" + TIERED_STOP_AT_LEVEL + ") is too low, test SKIPPED"); |
| return; |
| } |
| deoptimize(); |
| compileAtLevelAndCheck(CompilerWhiteBoxTest.COMP_LEVEL_MAX); |
| } |
| |
| protected void compileAtLevelAndCheck(int level) { |
| WHITE_BOX.enqueueMethodForCompilation(method, level); |
| waitBackgroundCompilation(); |
| checkCompilation(method, level); |
| checkEmittedCode(method); |
| } |
| |
| protected void checkCompilation(Executable executable, int level) { |
| if (!WHITE_BOX.isMethodCompiled(executable)) { |
| throw new AssertionError("Test bug, expected compilation (level): " + level + ", but not compiled" + WHITE_BOX.isMethodCompilable(executable, level)); |
| } |
| final int compilationLevel = WHITE_BOX.getMethodCompilationLevel(executable); |
| if (compilationLevel != level) { |
| throw new AssertionError("Test bug, expected compilation (level): " + level + ", but level: " + compilationLevel); |
| } |
| } |
| |
| protected void checkEmittedCode(Executable executable) { |
| final byte[] nativeCode = NMethod.get(executable, false).insts; |
| if (!((BmiTestCase) testCase).verifyPositive(nativeCode)) { |
| throw new AssertionError(testCase.name() + "CPU instructions expected not found: " + Utils.toHexString(nativeCode)); |
| } else { |
| System.out.println("CPU instructions found, PASSED"); |
| } |
| } |
| |
| abstract static class BmiTestCase implements CompilerWhiteBoxTest.TestCase { |
| private final Method method; |
| protected byte[] instrMask; |
| protected byte[] instrPattern; |
| protected boolean isLongOperation; |
| |
| public BmiTestCase(Method method) { |
| this.method = method; |
| } |
| |
| @Override |
| public String name() { |
| return method.toGenericString(); |
| } |
| |
| @Override |
| public Executable getExecutable() { |
| return method; |
| } |
| |
| @Override |
| public Callable<Integer> getCallable() { |
| return null; |
| } |
| |
| @Override |
| public boolean isOsr() { |
| return false; |
| } |
| |
| protected int countCpuInstructions(byte[] nativeCode) { |
| return countCpuInstructions(nativeCode, instrMask, instrPattern); |
| } |
| |
| public static int countCpuInstructions(byte[] nativeCode, byte[] instrMask, byte[] instrPattern) { |
| int count = 0; |
| int patternSize = Math.min(instrMask.length, instrPattern.length); |
| boolean found; |
| Asserts.assertGreaterThan(patternSize, 0); |
| for (int i = 0, n = nativeCode.length - patternSize; i < n; i++) { |
| found = true; |
| for (int j = 0; j < patternSize; j++) { |
| if ((nativeCode[i + j] & instrMask[j]) != instrPattern[j]) { |
| found = false; |
| break; |
| } |
| } |
| if (found) { |
| ++count; |
| i += patternSize - 1; |
| } |
| } |
| return count; |
| } |
| |
| public boolean verifyPositive(byte[] nativeCode) { |
| final int cnt = countCpuInstructions(nativeCode); |
| if (Platform.isX86()) { |
| return cnt >= (isLongOperation ? 2 : 1); |
| } else { |
| return Platform.isX64() && cnt >= 1; |
| } |
| } |
| |
| protected String getCpuFlag() { |
| return "bmi1"; |
| } |
| |
| protected String getVMFlag() { |
| return "UseBMI1Instructions"; |
| } |
| } |
| |
| abstract static class BmiTestCase_x64 extends BmiTestCase { |
| protected byte[] instrMask_x64; |
| protected byte[] instrPattern_x64; |
| |
| protected BmiTestCase_x64(Method method) { |
| super(method); |
| } |
| |
| protected int countCpuInstructions(byte[] nativeCode) { |
| int cnt = super.countCpuInstructions(nativeCode); |
| if (Platform.isX64()) { // on x64 platform the instruction we search for can be encoded in 2 different ways |
| cnt += countCpuInstructions(nativeCode, instrMask_x64, instrPattern_x64); |
| } |
| return cnt; |
| } |
| } |
| } |