| /* |
| * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package org.graalvm.compiler.asm.amd64.test; |
| |
| import static jdk.vm.ci.code.ValueUtil.asRegister; |
| import static org.junit.Assume.assumeTrue; |
| |
| import java.lang.reflect.Field; |
| |
| import jdk.vm.ci.amd64.AMD64; |
| import jdk.vm.ci.code.CallingConvention; |
| import jdk.vm.ci.code.Register; |
| import jdk.vm.ci.code.RegisterConfig; |
| import jdk.vm.ci.code.TargetDescription; |
| import jdk.vm.ci.meta.JavaKind; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import org.graalvm.compiler.asm.amd64.AMD64Address; |
| import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler; |
| import org.graalvm.compiler.asm.test.AssemblerTest; |
| import org.graalvm.compiler.code.CompilationResult; |
| |
| public class IncrementDecrementMacroTest extends AssemblerTest { |
| |
| @Before |
| public void checkAMD64() { |
| assumeTrue("skipping AMD64 specific test", codeCache.getTarget().arch instanceof AMD64); |
| } |
| |
| public static class LongField { |
| public long x; |
| |
| LongField(long x) { |
| this.x = x; |
| } |
| } |
| |
| private static class IncrementCodeGenTest implements CodeGenTest { |
| final int value; |
| |
| IncrementCodeGenTest(int value) { |
| this.value = value; |
| } |
| |
| @Override |
| public byte[] generateCode(CompilationResult compResult, TargetDescription target, RegisterConfig registerConfig, CallingConvention cc) { |
| AMD64MacroAssembler asm = new AMD64MacroAssembler(target); |
| Register ret = registerConfig.getReturnRegister(JavaKind.Int); |
| try { |
| Field f = LongField.class.getDeclaredField("x"); |
| AMD64Address arg = new AMD64Address(asRegister(cc.getArgument(0)), (int) UNSAFE.objectFieldOffset(f)); |
| asm.incrementq(arg, value); |
| asm.movq(ret, arg); |
| asm.ret(0); |
| return asm.close(true); |
| } catch (Exception e) { |
| throw new RuntimeException("exception while trying to generate field access:", e); |
| } |
| } |
| } |
| |
| private void assertIncrement(long initValue, int increment) { |
| assertReturn("longFieldStubIncrement", new IncrementCodeGenTest(increment), initValue + increment, new LongField(initValue)); |
| } |
| |
| private void assertIncrements(int increment) { |
| assertIncrement(0x4242_4242_4242_4242L, increment); |
| } |
| |
| @SuppressWarnings("unused") |
| public static long longFieldStubIncrement(LongField arg) { |
| return 0; |
| } |
| |
| private static class DecrementCodeGenTest implements CodeGenTest { |
| final int value; |
| |
| DecrementCodeGenTest(int value) { |
| this.value = value; |
| } |
| |
| @Override |
| public byte[] generateCode(CompilationResult compResult, TargetDescription target, RegisterConfig registerConfig, CallingConvention cc) { |
| AMD64MacroAssembler asm = new AMD64MacroAssembler(target); |
| Register ret = registerConfig.getReturnRegister(JavaKind.Int); |
| try { |
| Field f = LongField.class.getDeclaredField("x"); |
| AMD64Address arg = new AMD64Address(asRegister(cc.getArgument(0)), (int) UNSAFE.objectFieldOffset(f)); |
| asm.decrementq(arg, value); |
| asm.movq(ret, arg); |
| asm.ret(0); |
| return asm.close(true); |
| } catch (Exception e) { |
| throw new RuntimeException("exception while trying to generate field access:", e); |
| } |
| } |
| } |
| |
| private void assertDecrement(long initValue, int increment) { |
| assertReturn("longFieldStubDecrement", new DecrementCodeGenTest(increment), initValue - increment, new LongField(initValue)); |
| } |
| |
| private void assertDecrements(int increment) { |
| assertDecrement(0x4242_4242_4242_4242L, increment); |
| } |
| |
| @SuppressWarnings("unused") |
| public static long longFieldStubDecrement(LongField arg) { |
| return 0; |
| } |
| |
| @Test |
| public void incrementMemTest0() { |
| int increment = 0; |
| assertIncrements(increment); |
| } |
| |
| @Test |
| public void incrementMemTest1() { |
| int increment = 1; |
| assertIncrements(increment); |
| } |
| |
| @Test |
| public void incrementMemTest2() { |
| int increment = 2; |
| assertIncrements(increment); |
| } |
| |
| @Test |
| public void incrementMemTest3() { |
| int increment = Integer.MAX_VALUE; |
| assertIncrements(increment); |
| } |
| |
| @Test |
| public void incrementMemTest4() { |
| int increment = Integer.MIN_VALUE; |
| assertIncrements(increment); |
| } |
| |
| @Test |
| public void incrementMemTest5() { |
| int increment = -1; |
| assertIncrements(increment); |
| } |
| |
| @Test |
| public void incrementMemTest6() { |
| int increment = -2; |
| assertIncrements(increment); |
| } |
| |
| @Test |
| public void incrementMemTest7() { |
| int increment = -0x1000_0000; |
| assertIncrements(increment); |
| } |
| |
| @Test |
| public void decrementMemTest0() { |
| int decrement = 0; |
| assertDecrements(decrement); |
| } |
| |
| @Test |
| public void decrementMemTest1() { |
| int decrement = 1; |
| assertDecrements(decrement); |
| } |
| |
| @Test |
| public void decrementMemTest2() { |
| int decrement = 2; |
| assertDecrements(decrement); |
| } |
| |
| @Test |
| public void decrementMemTest3() { |
| int decrement = Integer.MAX_VALUE; |
| assertDecrements(decrement); |
| } |
| |
| @Test |
| public void decrementMemTest4() { |
| int decrement = Integer.MIN_VALUE; |
| assertDecrements(decrement); |
| } |
| |
| @Test |
| public void decrementMemTest5() { |
| int decrement = -1; |
| assertDecrements(decrement); |
| } |
| |
| @Test |
| public void decrementMemTest6() { |
| int decrement = -2; |
| assertDecrements(decrement); |
| } |
| |
| @Test |
| public void decrementMemTest7() { |
| int decrement = -0x1000_0000; |
| assertDecrements(decrement); |
| } |
| |
| } |