/* * 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.REG; import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; import static jdk.vm.ci.sparc.SPARC.g0; import static jdk.vm.ci.sparc.SPARCKind.XWORD; import org.graalvm.compiler.asm.sparc.SPARCAddress; import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; import org.graalvm.compiler.core.common.LIRKind; 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.SPARCDelayedControlTransfer; import org.graalvm.compiler.lir.sparc.SPARCLIRInstruction; import org.graalvm.compiler.lir.sparc.SPARCMove; import jdk.vm.ci.code.Register; import jdk.vm.ci.meta.Value; @Opcode("CRUNTIME_CALL_EPILOGUE") final class SPARCHotSpotCRuntimeCallEpilogueOp extends SPARCLIRInstruction { public static final LIRInstructionClass<SPARCHotSpotCRuntimeCallEpilogueOp> TYPE = LIRInstructionClass.create(SPARCHotSpotCRuntimeCallEpilogueOp.class); public static final SizeEstimate SIZE = SizeEstimate.create(11); private final int threadLastJavaSpOffset; private final int threadLastJavaPcOffset; private final int threadJavaFrameAnchorFlagsOffset; private final Register thread; @Use({REG, STACK}) protected Value threadTemp; SPARCHotSpotCRuntimeCallEpilogueOp(int threadLastJavaSpOffset, int threadLastJavaPcOffset, int threadJavaFrameAnchorFlagsOffset, Register thread, Value threadTemp) { super(TYPE, SIZE); this.threadLastJavaSpOffset = threadLastJavaSpOffset; this.threadLastJavaPcOffset = threadLastJavaPcOffset; this.threadJavaFrameAnchorFlagsOffset = threadJavaFrameAnchorFlagsOffset; this.thread = thread; this.threadTemp = threadTemp; } @Override public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { // Restore the thread register when coming back from the runtime. SPARCMove.move(crb, masm, thread.asValue(LIRKind.value(XWORD)), threadTemp, SPARCDelayedControlTransfer.DUMMY); // Reset last Java frame, last Java PC and flags. masm.stx(g0, new SPARCAddress(thread, threadLastJavaSpOffset)); masm.stx(g0, new SPARCAddress(thread, threadLastJavaPcOffset)); masm.stw(g0, new SPARCAddress(thread, threadJavaFrameAnchorFlagsOffset)); } }