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 */ 23package org.graalvm.compiler.hotspot.aarch64; 24 25import static jdk.vm.ci.aarch64.AArch64.r0; 26import static jdk.vm.ci.aarch64.AArch64.r1; 27import static jdk.vm.ci.aarch64.AArch64.r10; 28import static jdk.vm.ci.aarch64.AArch64.r11; 29import static jdk.vm.ci.aarch64.AArch64.r12; 30import static jdk.vm.ci.aarch64.AArch64.r13; 31import static jdk.vm.ci.aarch64.AArch64.r14; 32import static jdk.vm.ci.aarch64.AArch64.r15; 33import static jdk.vm.ci.aarch64.AArch64.r16; 34import static jdk.vm.ci.aarch64.AArch64.r17; 35import static jdk.vm.ci.aarch64.AArch64.r18; 36import static jdk.vm.ci.aarch64.AArch64.r19; 37import static jdk.vm.ci.aarch64.AArch64.r2; 38import static jdk.vm.ci.aarch64.AArch64.r20; 39import static jdk.vm.ci.aarch64.AArch64.r21; 40import static jdk.vm.ci.aarch64.AArch64.r22; 41import static jdk.vm.ci.aarch64.AArch64.r23; 42import static jdk.vm.ci.aarch64.AArch64.r24; 43import static jdk.vm.ci.aarch64.AArch64.r25; 44import static jdk.vm.ci.aarch64.AArch64.r26; 45import static jdk.vm.ci.aarch64.AArch64.r27; 46import static jdk.vm.ci.aarch64.AArch64.r28; 47import static jdk.vm.ci.aarch64.AArch64.r3; 48import static jdk.vm.ci.aarch64.AArch64.r4; 49import static jdk.vm.ci.aarch64.AArch64.r5; 50import static jdk.vm.ci.aarch64.AArch64.r6; 51import static jdk.vm.ci.aarch64.AArch64.r7; 52import static jdk.vm.ci.aarch64.AArch64.r8; 53import static jdk.vm.ci.aarch64.AArch64.r9; 54import static jdk.vm.ci.aarch64.AArch64.v0; 55import static jdk.vm.ci.aarch64.AArch64.v1; 56import static jdk.vm.ci.aarch64.AArch64.v10; 57import static jdk.vm.ci.aarch64.AArch64.v11; 58import static jdk.vm.ci.aarch64.AArch64.v12; 59import static jdk.vm.ci.aarch64.AArch64.v13; 60import static jdk.vm.ci.aarch64.AArch64.v14; 61import static jdk.vm.ci.aarch64.AArch64.v15; 62import static jdk.vm.ci.aarch64.AArch64.v16; 63import static jdk.vm.ci.aarch64.AArch64.v17; 64import static jdk.vm.ci.aarch64.AArch64.v18; 65import static jdk.vm.ci.aarch64.AArch64.v19; 66import static jdk.vm.ci.aarch64.AArch64.v2; 67import static jdk.vm.ci.aarch64.AArch64.v20; 68import static jdk.vm.ci.aarch64.AArch64.v21; 69import static jdk.vm.ci.aarch64.AArch64.v22; 70import static jdk.vm.ci.aarch64.AArch64.v23; 71import static jdk.vm.ci.aarch64.AArch64.v24; 72import static jdk.vm.ci.aarch64.AArch64.v25; 73import static jdk.vm.ci.aarch64.AArch64.v26; 74import static jdk.vm.ci.aarch64.AArch64.v27; 75import static jdk.vm.ci.aarch64.AArch64.v28; 76import static jdk.vm.ci.aarch64.AArch64.v29; 77import static jdk.vm.ci.aarch64.AArch64.v3; 78import static jdk.vm.ci.aarch64.AArch64.v30; 79import static jdk.vm.ci.aarch64.AArch64.v31; 80import static jdk.vm.ci.aarch64.AArch64.v4; 81import static jdk.vm.ci.aarch64.AArch64.v5; 82import static jdk.vm.ci.aarch64.AArch64.v6; 83import static jdk.vm.ci.aarch64.AArch64.v7; 84import static jdk.vm.ci.aarch64.AArch64.v8; 85import static jdk.vm.ci.aarch64.AArch64.v9; 86 87import java.util.ArrayList; 88import java.util.BitSet; 89 90import org.graalvm.compiler.core.common.alloc.RegisterAllocationConfig; 91 92import jdk.vm.ci.code.Register; 93import jdk.vm.ci.code.RegisterArray; 94import jdk.vm.ci.code.RegisterConfig; 95 96public class AArch64HotSpotRegisterAllocationConfig extends RegisterAllocationConfig { 97 98 // @formatter:off 99 static final Register[] registerAllocationOrder = { 100 r0, r1, r2, r3, r4, r5, r6, r7, 101 r8, r9, r10, r11, r12, r13, r14, r15, 102 r16, r17, r18, r19, r20, r21, r22, r23, 103 r24, r25, r26, r27, r28, /* r29, r30, r31 */ 104 105 v0, v1, v2, v3, v4, v5, v6, v7, 106 v8, v9, v10, v11, v12, v13, v14, v15, 107 v16, v17, v18, v19, v20, v21, v22, v23, 108 v24, v25, v26, v27, v28, v29, v30, v31 109 }; 110 // @formatter:on 111 112 public AArch64HotSpotRegisterAllocationConfig(RegisterConfig registerConfig) { 113 super(registerConfig); 114 } 115 116 @Override 117 protected RegisterArray initAllocatable(RegisterArray registers) { 118 BitSet regMap = new BitSet(registerConfig.getAllocatableRegisters().size()); 119 for (Register reg : registers) { 120 regMap.set(reg.number); 121 } 122 123 ArrayList<Register> allocatableRegisters = new ArrayList<>(registers.size()); 124 for (Register reg : registerAllocationOrder) { 125 if (regMap.get(reg.number)) { 126 allocatableRegisters.add(reg); 127 } 128 } 129 130 return super.initAllocatable(new RegisterArray(allocatableRegisters)); 131 } 132} 133