1 /* 2 * Copyright (c) 2013, 2018, 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 24 25 package org.graalvm.compiler.hotspot.sparc; 26 27 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; 28 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; 29 import static jdk.vm.ci.code.ValueUtil.asRegister; 30 import static jdk.vm.ci.sparc.SPARC.STACK_BIAS; 31 import static jdk.vm.ci.sparc.SPARCKind.XWORD; 32 33 import org.graalvm.compiler.asm.sparc.SPARCAddress; 34 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; 35 import org.graalvm.compiler.core.common.LIRKind; 36 import org.graalvm.compiler.lir.LIRInstructionClass; 37 import org.graalvm.compiler.lir.Opcode; 38 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 39 import org.graalvm.compiler.lir.sparc.SPARCLIRInstruction; 40 import org.graalvm.compiler.lir.sparc.SPARCMove; 41 import org.graalvm.compiler.lir.sparc.SPARCTailDelayedLIRInstruction; 42 43 import jdk.vm.ci.code.Register; 44 import jdk.vm.ci.meta.AllocatableValue; 45 import jdk.vm.ci.meta.Value; 46 47 @Opcode("CRUNTIME_CALL_PROLOGUE") 48 final class SPARCHotSpotCRuntimeCallPrologueOp extends SPARCLIRInstruction implements SPARCTailDelayedLIRInstruction { 49 public static final LIRInstructionClass<SPARCHotSpotCRuntimeCallPrologueOp> TYPE = LIRInstructionClass.create(SPARCHotSpotCRuntimeCallPrologueOp.class); 50 public static final SizeEstimate SIZE = SizeEstimate.create(10); 51 52 private final int threadLastJavaSpOffset; 53 private final Register thread; 54 private final Register stackPointer; 55 @Def({REG, STACK}) protected Value threadTemp; 56 @Temp({REG}) protected AllocatableValue spScratch; 57 58 SPARCHotSpotCRuntimeCallPrologueOp(int threadLastJavaSpOffset, Register thread, Register stackPointer, Value threadTemp, AllocatableValue spScratch) { 59 super(TYPE, SIZE); 60 this.threadLastJavaSpOffset = threadLastJavaSpOffset; 61 this.thread = thread; 62 this.stackPointer = stackPointer; 63 this.threadTemp = threadTemp; 64 this.spScratch = spScratch; 65 } 66 67 @Override 68 public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { 69 // Save last Java frame. 70 Register scratchRegister = asRegister(spScratch); 71 masm.add(stackPointer, STACK_BIAS, scratchRegister); 72 masm.stx(scratchRegister, new SPARCAddress(thread, threadLastJavaSpOffset)); 73 74 // Save the thread register when calling out to the runtime. 75 SPARCMove.move(crb, masm, threadTemp, thread.asValue(LIRKind.value(XWORD)), getDelayedControlTransfer()); 76 } 77 }