1 /* 2 * Copyright (c) 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 24 25 package org.graalvm.compiler.hotspot.aarch64; 26 27 import static jdk.vm.ci.code.ValueUtil.asRegister; 28 29 import jdk.vm.ci.aarch64.AArch64Kind; 30 import jdk.vm.ci.code.Register; 31 import jdk.vm.ci.meta.AllocatableValue; 32 import jdk.vm.ci.meta.Constant; 33 34 import org.graalvm.compiler.asm.aarch64.AArch64Address; 35 import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler; 36 import org.graalvm.compiler.debug.GraalError; 37 import org.graalvm.compiler.lir.LIRInstructionClass; 38 import org.graalvm.compiler.lir.aarch64.AArch64LIRInstruction; 39 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 40 41 public final class AArch64HotSpotLoadAddressOp extends AArch64LIRInstruction { 42 43 public static final LIRInstructionClass<AArch64HotSpotLoadAddressOp> TYPE = LIRInstructionClass.create(AArch64HotSpotLoadAddressOp.class); 44 45 @Def({OperandFlag.REG}) protected AllocatableValue result; 46 private final Constant constant; 47 private final Object note; 48 49 public AArch64HotSpotLoadAddressOp(AllocatableValue result, Constant constant, Object note) { 50 super(TYPE); 51 this.result = result; 52 this.constant = constant; 53 this.note = note; 54 } 55 56 @Override 57 public void emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm) { 58 crb.recordInlineDataInCodeWithNote(constant, note); 59 AArch64Kind kind = (AArch64Kind) result.getPlatformKind(); 60 int size = 0; 61 switch (kind) { 62 case DWORD: 63 size = 32; 64 break; 65 case QWORD: 66 size = 64; 67 break; 68 default: 69 throw GraalError.shouldNotReachHere("unexpected kind: " + kind); 70 } 71 if (crb.compilationResult.isImmutablePIC()) { 72 Register dst = asRegister(result); 73 masm.addressOf(dst); 74 masm.ldr(size, dst, AArch64Address.createBaseRegisterOnlyAddress(dst)); 75 } else { 76 masm.ldr(size, asRegister(result), masm.getPlaceholder(-1)); 77 } 78 } 79 }