| /* |
| * 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.sparc; |
| |
| import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; |
| import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; |
| import static jdk.vm.ci.code.ValueUtil.asRegister; |
| import static jdk.vm.ci.sparc.SPARC.STACK_BIAS; |
| 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.SPARCLIRInstruction; |
| import org.graalvm.compiler.lir.sparc.SPARCMove; |
| import org.graalvm.compiler.lir.sparc.SPARCTailDelayedLIRInstruction; |
| |
| import jdk.vm.ci.code.Register; |
| import jdk.vm.ci.meta.AllocatableValue; |
| import jdk.vm.ci.meta.Value; |
| |
| @Opcode("CRUNTIME_CALL_PROLOGUE") |
| final class SPARCHotSpotCRuntimeCallPrologueOp extends SPARCLIRInstruction implements SPARCTailDelayedLIRInstruction { |
| public static final LIRInstructionClass<SPARCHotSpotCRuntimeCallPrologueOp> TYPE = LIRInstructionClass.create(SPARCHotSpotCRuntimeCallPrologueOp.class); |
| public static final SizeEstimate SIZE = SizeEstimate.create(10); |
| |
| private final int threadLastJavaSpOffset; |
| private final Register thread; |
| private final Register stackPointer; |
| @Def({REG, STACK}) protected Value threadTemp; |
| @Temp({REG}) protected AllocatableValue spScratch; |
| |
| SPARCHotSpotCRuntimeCallPrologueOp(int threadLastJavaSpOffset, Register thread, Register stackPointer, Value threadTemp, AllocatableValue spScratch) { |
| super(TYPE, SIZE); |
| this.threadLastJavaSpOffset = threadLastJavaSpOffset; |
| this.thread = thread; |
| this.stackPointer = stackPointer; |
| this.threadTemp = threadTemp; |
| this.spScratch = spScratch; |
| } |
| |
| @Override |
| public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { |
| // Save last Java frame. |
| Register scratchRegister = asRegister(spScratch); |
| masm.add(stackPointer, STACK_BIAS, scratchRegister); |
| masm.stx(scratchRegister, new SPARCAddress(thread, threadLastJavaSpOffset)); |
| |
| // Save the thread register when calling out to the runtime. |
| SPARCMove.move(crb, masm, threadTemp, thread.asValue(LIRKind.value(XWORD)), getDelayedControlTransfer()); |
| } |
| } |