/* * Copyright (c) 2012, 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.sparc; import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.ILLEGAL; import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; import static jdk.vm.ci.code.ValueUtil.asRegister; import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; import org.graalvm.compiler.lir.LIRInstructionClass; import org.graalvm.compiler.lir.Opcode; import org.graalvm.compiler.lir.asm.CompilationResultBuilder; import org.graalvm.compiler.lir.sparc.SPARCControlFlow.ReturnOp; import jdk.vm.ci.meta.Value; /** * Returns from a function. */ @Opcode("RETURN") final class SPARCHotSpotReturnOp extends SPARCHotSpotEpilogueOp { public static final LIRInstructionClass<SPARCHotSpotReturnOp> TYPE = LIRInstructionClass.create(SPARCHotSpotReturnOp.class); public static final SizeEstimate SIZE = SizeEstimate.create(2); @Use({REG, ILLEGAL}) protected Value value; @Use({REG}) protected Value safepointPollAddress; private final boolean isStub; private final GraalHotSpotVMConfig config; SPARCHotSpotReturnOp(Value value, boolean isStub, GraalHotSpotVMConfig config, Value safepointPoll) { super(TYPE, SIZE); this.value = value; this.isStub = isStub; this.config = config; this.safepointPollAddress = safepointPoll; } @Override public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { if (!isStub) { // Every non-stub compile method must have a poll before the return. SPARCHotSpotSafepointOp.emitCode(crb, masm, config, true, null, asRegister(safepointPollAddress)); } ReturnOp.emitCodeHelper(crb, masm); } }