1 /* 2 * Copyright (c) 2013, 2019, 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.lir.amd64; 26 27 import static jdk.vm.ci.code.ValueUtil.asStackSlot; 28 import static jdk.vm.ci.code.ValueUtil.isStackSlot; 29 30 import jdk.internal.vm.compiler.collections.EconomicSet; 31 import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler; 32 import org.graalvm.compiler.lir.LIRInstructionClass; 33 import org.graalvm.compiler.lir.Opcode; 34 import org.graalvm.compiler.lir.StandardOp.SaveRegistersOp; 35 import org.graalvm.compiler.lir.amd64.vector.AMD64VectorMove; 36 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 37 38 import jdk.vm.ci.amd64.AMD64Kind; 39 import jdk.vm.ci.code.Register; 40 import jdk.vm.ci.code.StackSlot; 41 import jdk.vm.ci.meta.AllocatableValue; 42 43 /** 44 * Saves registers to stack slots. 45 */ 46 @Opcode("SAVE_REGISTER") 47 public class AMD64SaveRegistersOp extends SaveRegistersOp { 48 public static final LIRInstructionClass<AMD64SaveRegistersOp> TYPE = LIRInstructionClass.create(AMD64SaveRegistersOp.class); 49 50 /** 51 * 52 * @param savedRegisters the registers saved by this operation which may be subject to 53 * {@linkplain #remove(EconomicSet) pruning} 54 * @param savedRegisterLocations the slots to which the registers are saved 55 */ AMD64SaveRegistersOp(Register[] savedRegisters, AllocatableValue[] savedRegisterLocations)56 public AMD64SaveRegistersOp(Register[] savedRegisters, AllocatableValue[] savedRegisterLocations) { 57 super(TYPE, savedRegisters, savedRegisterLocations); 58 } 59 AMD64SaveRegistersOp(LIRInstructionClass<AMD64VectorMove.SaveRegistersOp> type, Register[] savedRegisters, AllocatableValue[] slots)60 protected AMD64SaveRegistersOp(LIRInstructionClass<AMD64VectorMove.SaveRegistersOp> type, Register[] savedRegisters, AllocatableValue[] slots) { 61 super(type, savedRegisters, slots); 62 } 63 saveRegister(CompilationResultBuilder crb, AMD64MacroAssembler masm, StackSlot result, Register input)64 protected void saveRegister(CompilationResultBuilder crb, AMD64MacroAssembler masm, StackSlot result, Register input) { 65 AMD64Move.reg2stack((AMD64Kind) result.getPlatformKind(), crb, masm, result, input); 66 } 67 68 @Override emitCode(CompilationResultBuilder crb)69 public void emitCode(CompilationResultBuilder crb) { 70 AMD64MacroAssembler masm = (AMD64MacroAssembler) crb.asm; 71 for (int i = 0; i < savedRegisters.length; i++) { 72 if (savedRegisters[i] != null) { 73 assert isStackSlot(slots[i]) : "not a StackSlot: " + slots[i]; 74 saveRegister(crb, masm, asStackSlot(slots[i]), savedRegisters[i]); 75 } 76 } 77 } 78 } 79