| /* |
| * 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)); |
| } |
| } |