1 /* 2 * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.hotspot.sparc; 24 25 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; 26 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; 27 import static jdk.vm.ci.code.ValueUtil.asRegister; 28 import static jdk.vm.ci.sparc.SPARC.STACK_BIAS; 29 import static jdk.vm.ci.sparc.SPARCKind.XWORD; 30 31 import org.graalvm.compiler.asm.sparc.SPARCAddress; 32 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; 33 import org.graalvm.compiler.core.common.LIRKind; 34 import org.graalvm.compiler.lir.LIRInstructionClass; 35 import org.graalvm.compiler.lir.Opcode; 36 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 37 import org.graalvm.compiler.lir.sparc.SPARCLIRInstruction; 38 import org.graalvm.compiler.lir.sparc.SPARCMove; 39 import org.graalvm.compiler.lir.sparc.SPARCTailDelayedLIRInstruction; 40 41 import jdk.vm.ci.code.Register; 42 import jdk.vm.ci.meta.AllocatableValue; 43 import jdk.vm.ci.meta.Value; 44 45 @Opcode("CRUNTIME_CALL_PROLOGUE") 46 final class SPARCHotSpotCRuntimeCallPrologueOp extends SPARCLIRInstruction implements SPARCTailDelayedLIRInstruction { 47 public static final LIRInstructionClass<SPARCHotSpotCRuntimeCallPrologueOp> TYPE = LIRInstructionClass.create(SPARCHotSpotCRuntimeCallPrologueOp.class); 48 public static final SizeEstimate SIZE = SizeEstimate.create(10); 49 50 private final int threadLastJavaSpOffset; 51 private final Register thread; 52 private final Register stackPointer; 53 @Def({REG, STACK}) protected Value threadTemp; 54 @Temp({REG}) protected AllocatableValue spScratch; 55 56 SPARCHotSpotCRuntimeCallPrologueOp(int threadLastJavaSpOffset, Register thread, Register stackPointer, Value threadTemp, AllocatableValue spScratch) { 57 super(TYPE, SIZE); 58 this.threadLastJavaSpOffset = threadLastJavaSpOffset; 59 this.thread = thread; 60 this.stackPointer = stackPointer; 61 this.threadTemp = threadTemp; 62 this.spScratch = spScratch; 63 } 64 65 @Override 66 public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { 67 // Save last Java frame. 68 Register scratchRegister = asRegister(spScratch); 69 masm.add(stackPointer, STACK_BIAS, scratchRegister); 70 masm.stx(scratchRegister, new SPARCAddress(thread, threadLastJavaSpOffset)); 71 72 // Save the thread register when calling out to the runtime. 73 SPARCMove.move(crb, masm, threadTemp, thread.asValue(LIRKind.value(XWORD)), getDelayedControlTransfer()); 74 } 75 }