--- /dev/null 2017-01-22 10:16:57.869617664 -0800 +++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.amd64.test/src/org/graalvm/compiler/hotspot/amd64/test/AMD64HotSpotFrameOmissionTest.java 2017-02-15 16:58:54.759416603 -0800 @@ -0,0 +1,132 @@ +/* + * Copyright (c) 2013, 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 org.graalvm.compiler.hotspot.amd64.test; + +import static jdk.vm.ci.amd64.AMD64.rax; + +import java.util.Arrays; + +import org.junit.Assert; +import org.junit.Ignore; +import org.junit.Test; + +import org.graalvm.compiler.asm.amd64.AMD64Assembler; +import org.graalvm.compiler.core.test.GraalCompilerTest; + +import jdk.vm.ci.code.InstalledCode; +import jdk.vm.ci.code.Register; +import jdk.vm.ci.code.RegisterArray; +import jdk.vm.ci.code.TargetDescription; +import jdk.vm.ci.hotspot.HotSpotCallingConventionType; +import jdk.vm.ci.meta.JavaKind; +import jdk.vm.ci.meta.ResolvedJavaMethod; + +/** + * Ensures that frame omission works in cases where it is expected to. + */ +public class AMD64HotSpotFrameOmissionTest extends GraalCompilerTest { + + interface CodeGenerator { + + void generateCode(AMD64Assembler asm); + } + + public static void test1snippet() { + return; + } + + @Ignore + @Test + public void test1() { + testHelper("test1snippet", new CodeGenerator() { + + @Override + public void generateCode(AMD64Assembler asm) { + asm.nop(5); // padding for mt-safe patching + asm.ret(0); + } + }); + } + + public static int test2snippet(int x) { + return x + 5; + } + + @Ignore + @Test + public void test2() { + testHelper("test2snippet", new CodeGenerator() { + + @Override + public void generateCode(AMD64Assembler asm) { + Register arg = getArgumentRegister(0, JavaKind.Int); + asm.nop(5); // padding for mt-safe patching + asm.addl(arg, 5); + asm.movl(rax, arg); + asm.ret(0); + } + }); + } + + public static long test3snippet(long x) { + return 1 + x; + } + + @Ignore + @Test + public void test3() { + testHelper("test3snippet", new CodeGenerator() { + + @Override + public void generateCode(AMD64Assembler asm) { + Register arg = getArgumentRegister(0, JavaKind.Long); + asm.nop(5); // padding for mt-safe patching + asm.addq(arg, 1); + asm.movq(rax, arg); + asm.ret(0); + } + }); + } + + private void testHelper(String name, CodeGenerator gen) { + ResolvedJavaMethod javaMethod = getResolvedJavaMethod(name); + InstalledCode installedCode = getCode(javaMethod); + + TargetDescription target = getCodeCache().getTarget(); + AMD64Assembler asm = new AMD64Assembler(target); + + gen.generateCode(asm); + byte[] expectedCode = asm.close(true); + + // Only compare up to expectedCode.length bytes to ignore + // padding instructions adding during code installation + byte[] actualCode = Arrays.copyOf(installedCode.getCode(), expectedCode.length); + + Assert.assertArrayEquals(expectedCode, actualCode); + } + + private Register getArgumentRegister(int index, JavaKind kind) { + RegisterArray regs = getCodeCache().getRegisterConfig().getCallingConventionRegisters(HotSpotCallingConventionType.JavaCall, kind); + return regs.get(index); + } +}